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yosssi/gmq
mqtt/client/client.go
clean
func (cli *Client) clean() { // Clean the Network Connection. cli.conn = nil // Clean the Session if the Clean Session is true. if cli.sess != nil && cli.sess.cleanSession { cli.sess = nil } }
go
func (cli *Client) clean() { // Clean the Network Connection. cli.conn = nil // Clean the Session if the Clean Session is true. if cli.sess != nil && cli.sess.cleanSession { cli.sess = nil } }
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// clean cleans the Network Connection and the Session if necessary.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L475-L483
2,201
yosssi/gmq
mqtt/client/client.go
waitPacket
func (cli *Client) waitPacket(packetc <-chan struct{}, timeout time.Duration, errTimeout error) { defer cli.conn.wg.Done() var timeoutc <-chan time.Time if timeout > 0 { timeoutc = time.After(timeout * time.Second) } select { case <-packetc: case <-timeoutc: // Handle the timeout error. cli.handleErrorAndDisconn(errTimeout) } }
go
func (cli *Client) waitPacket(packetc <-chan struct{}, timeout time.Duration, errTimeout error) { defer cli.conn.wg.Done() var timeoutc <-chan time.Time if timeout > 0 { timeoutc = time.After(timeout * time.Second) } select { case <-packetc: case <-timeoutc: // Handle the timeout error. cli.handleErrorAndDisconn(errTimeout) } }
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// waitPacket waits for receiving the Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L486-L501
2,202
yosssi/gmq
mqtt/client/client.go
receivePackets
func (cli *Client) receivePackets() { defer func() { // Close the channel which handles a signal which // notifies the arrival of the CONNACK Packet. close(cli.conn.connack) cli.conn.wg.Done() }() for { // Receive a Packet from the Server. p, err := cli.receive() if err != nil { // Handle the error and disconnect // the Network Connection. cli.handleErrorAndDisconn(err) // End the goroutine. return } // Handle the Packet. if err := cli.handlePacket(p); err != nil { // Handle the error and disconnect // the Network Connection. cli.handleErrorAndDisconn(err) // End the goroutine. return } } }
go
func (cli *Client) receivePackets() { defer func() { // Close the channel which handles a signal which // notifies the arrival of the CONNACK Packet. close(cli.conn.connack) cli.conn.wg.Done() }() for { // Receive a Packet from the Server. p, err := cli.receive() if err != nil { // Handle the error and disconnect // the Network Connection. cli.handleErrorAndDisconn(err) // End the goroutine. return } // Handle the Packet. if err := cli.handlePacket(p); err != nil { // Handle the error and disconnect // the Network Connection. cli.handleErrorAndDisconn(err) // End the goroutine. return } } }
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// receivePackets receives Packets from the Server.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L504-L535
2,203
yosssi/gmq
mqtt/client/client.go
handlePacket
func (cli *Client) handlePacket(p packet.Packet) error { // Get the MQTT Control Packet type. ptype, err := p.Type() if err != nil { return err } switch ptype { case packet.TypeCONNACK: cli.handleCONNACK() return nil case packet.TypePUBLISH: return cli.handlePUBLISH(p) case packet.TypePUBACK: return cli.handlePUBACK(p) case packet.TypePUBREC: return cli.handlePUBREC(p) case packet.TypePUBREL: return cli.handlePUBREL(p) case packet.TypePUBCOMP: return cli.handlePUBCOMP(p) case packet.TypeSUBACK: return cli.handleSUBACK(p) case packet.TypeUNSUBACK: return cli.handleUNSUBACK(p) case packet.TypePINGRESP: return cli.handlePINGRESP() default: return packet.ErrInvalidPacketType } }
go
func (cli *Client) handlePacket(p packet.Packet) error { // Get the MQTT Control Packet type. ptype, err := p.Type() if err != nil { return err } switch ptype { case packet.TypeCONNACK: cli.handleCONNACK() return nil case packet.TypePUBLISH: return cli.handlePUBLISH(p) case packet.TypePUBACK: return cli.handlePUBACK(p) case packet.TypePUBREC: return cli.handlePUBREC(p) case packet.TypePUBREL: return cli.handlePUBREL(p) case packet.TypePUBCOMP: return cli.handlePUBCOMP(p) case packet.TypeSUBACK: return cli.handleSUBACK(p) case packet.TypeUNSUBACK: return cli.handleUNSUBACK(p) case packet.TypePINGRESP: return cli.handlePINGRESP() default: return packet.ErrInvalidPacketType } }
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// handlePacket handles the Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L538-L568
2,204
yosssi/gmq
mqtt/client/client.go
handlePUBLISH
func (cli *Client) handlePUBLISH(p packet.Packet) error { // Get the PUBLISH Packet. publish := p.(*packet.PUBLISH) switch publish.QoS { case mqtt.QoS0: // Lock for reading. cli.muConn.RLock() // Unlock. defer cli.muConn.RUnlock() // Handle the Application Message. cli.handleMessage(publish.TopicName, publish.Message) return nil case mqtt.QoS1: // Lock for reading. cli.muConn.RLock() // Unlock. defer cli.muConn.RUnlock() // Handle the Application Message. cli.handleMessage(publish.TopicName, publish.Message) // Create a PUBACK Packet. puback, err := packet.NewPUBACK(&packet.PUBACKOptions{ PacketID: publish.PacketID, }) if err != nil { return err } // Send the Packet to the Server. cli.conn.send <- puback return nil default: // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Validate the Packet Identifier. if _, exist := cli.sess.receivingPackets[publish.PacketID]; exist { return packet.ErrInvalidPacketID } // Set the Packet to the Session. cli.sess.receivingPackets[publish.PacketID] = p // Create a PUBREC Packet. pubrec, err := packet.NewPUBREC(&packet.PUBRECOptions{ PacketID: publish.PacketID, }) if err != nil { return err } // Send the Packet to the Server. cli.conn.send <- pubrec return nil } }
go
func (cli *Client) handlePUBLISH(p packet.Packet) error { // Get the PUBLISH Packet. publish := p.(*packet.PUBLISH) switch publish.QoS { case mqtt.QoS0: // Lock for reading. cli.muConn.RLock() // Unlock. defer cli.muConn.RUnlock() // Handle the Application Message. cli.handleMessage(publish.TopicName, publish.Message) return nil case mqtt.QoS1: // Lock for reading. cli.muConn.RLock() // Unlock. defer cli.muConn.RUnlock() // Handle the Application Message. cli.handleMessage(publish.TopicName, publish.Message) // Create a PUBACK Packet. puback, err := packet.NewPUBACK(&packet.PUBACKOptions{ PacketID: publish.PacketID, }) if err != nil { return err } // Send the Packet to the Server. cli.conn.send <- puback return nil default: // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Validate the Packet Identifier. if _, exist := cli.sess.receivingPackets[publish.PacketID]; exist { return packet.ErrInvalidPacketID } // Set the Packet to the Session. cli.sess.receivingPackets[publish.PacketID] = p // Create a PUBREC Packet. pubrec, err := packet.NewPUBREC(&packet.PUBRECOptions{ PacketID: publish.PacketID, }) if err != nil { return err } // Send the Packet to the Server. cli.conn.send <- pubrec return nil } }
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// handlePUBLISH handles the PUBLISH Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L580-L646
2,205
yosssi/gmq
mqtt/client/client.go
handlePUBACK
func (cli *Client) handlePUBACK(p packet.Packet) error { // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.PUBACK).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypePUBLISH); err != nil { return err } // Delete the PUBLISH Packet from the Session. delete(cli.sess.sendingPackets, id) return nil }
go
func (cli *Client) handlePUBACK(p packet.Packet) error { // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.PUBACK).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypePUBLISH); err != nil { return err } // Delete the PUBLISH Packet from the Session. delete(cli.sess.sendingPackets, id) return nil }
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// handlePUBACK handles the PUBACK Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L649-L668
2,206
yosssi/gmq
mqtt/client/client.go
handlePUBREC
func (cli *Client) handlePUBREC(p packet.Packet) error { // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.PUBREC).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypePUBLISH); err != nil { return err } // Create a PUBREL Packet. pubrel, err := packet.NewPUBREL(&packet.PUBRELOptions{ PacketID: id, }) if err != nil { return err } // Set the PUBREL Packet to the Session. cli.sess.sendingPackets[id] = pubrel // Send the Packet to the Server. cli.conn.send <- pubrel return nil }
go
func (cli *Client) handlePUBREC(p packet.Packet) error { // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.PUBREC).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypePUBLISH); err != nil { return err } // Create a PUBREL Packet. pubrel, err := packet.NewPUBREL(&packet.PUBRELOptions{ PacketID: id, }) if err != nil { return err } // Set the PUBREL Packet to the Session. cli.sess.sendingPackets[id] = pubrel // Send the Packet to the Server. cli.conn.send <- pubrel return nil }
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// handlePUBREC handles the PUBREC Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L671-L701
2,207
yosssi/gmq
mqtt/client/client.go
handlePUBREL
func (cli *Client) handlePUBREL(p packet.Packet) error { // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.PUBREL).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.receivingPackets, id, packet.TypePUBLISH); err != nil { return err } // Get the Packet from the Session. publish := cli.sess.receivingPackets[id].(*packet.PUBLISH) // Lock for reading. cli.muConn.RLock() // Handle the Application Message. cli.handleMessage(publish.TopicName, publish.Message) // Unlock. cli.muConn.RUnlock() // Delete the Packet from the Session delete(cli.sess.receivingPackets, id) // Create a PUBCOMP Packet. pubcomp, err := packet.NewPUBCOMP(&packet.PUBCOMPOptions{ PacketID: id, }) if err != nil { return err } // Send the Packet to the Server. cli.conn.send <- pubcomp return nil }
go
func (cli *Client) handlePUBREL(p packet.Packet) error { // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.PUBREL).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.receivingPackets, id, packet.TypePUBLISH); err != nil { return err } // Get the Packet from the Session. publish := cli.sess.receivingPackets[id].(*packet.PUBLISH) // Lock for reading. cli.muConn.RLock() // Handle the Application Message. cli.handleMessage(publish.TopicName, publish.Message) // Unlock. cli.muConn.RUnlock() // Delete the Packet from the Session delete(cli.sess.receivingPackets, id) // Create a PUBCOMP Packet. pubcomp, err := packet.NewPUBCOMP(&packet.PUBCOMPOptions{ PacketID: id, }) if err != nil { return err } // Send the Packet to the Server. cli.conn.send <- pubcomp return nil }
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// handlePUBREL handles the PUBREL Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L704-L746
2,208
yosssi/gmq
mqtt/client/client.go
handlePUBCOMP
func (cli *Client) handlePUBCOMP(p packet.Packet) error { // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.PUBCOMP).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypePUBREL); err != nil { return err } // Delete the PUBREL Packet from the Session. delete(cli.sess.sendingPackets, id) return nil }
go
func (cli *Client) handlePUBCOMP(p packet.Packet) error { // Lock for update. cli.muSess.Lock() // Unlock. defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.PUBCOMP).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypePUBREL); err != nil { return err } // Delete the PUBREL Packet from the Session. delete(cli.sess.sendingPackets, id) return nil }
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// handlePUBCOMP handles the PUBCOMP Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L749-L768
2,209
yosssi/gmq
mqtt/client/client.go
handleSUBACK
func (cli *Client) handleSUBACK(p packet.Packet) error { // Lock for update. cli.muConn.Lock() cli.muSess.Lock() // Unlock. defer cli.muConn.Unlock() defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.SUBACK).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypeSUBSCRIBE); err != nil { return err } // Get the subscription requests of the SUBSCRIBE Packet. subreqs := cli.sess.sendingPackets[id].(*packet.SUBSCRIBE).SubReqs // Delete the SUBSCRIBE Packet from the Session. delete(cli.sess.sendingPackets, id) // Get the Return Codes of the SUBACK Packet. returnCodes := p.(*packet.SUBACK).ReturnCodes // Check the lengths of the Return Codes. if len(returnCodes) != len(subreqs) { return ErrInvalidSUBACK } // Set the subscriptions to the Network Connection. for i, code := range returnCodes { // Skip if the Return Code is failure. if code == packet.SUBACKRetFailure { continue } // Get the Topic Filter. topicFilter := string(subreqs[i].TopicFilter) // Move the subscription information from // unackSubs to ackedSubs. cli.conn.ackedSubs[topicFilter] = cli.conn.unackSubs[topicFilter] delete(cli.conn.unackSubs, topicFilter) } return nil }
go
func (cli *Client) handleSUBACK(p packet.Packet) error { // Lock for update. cli.muConn.Lock() cli.muSess.Lock() // Unlock. defer cli.muConn.Unlock() defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.SUBACK).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypeSUBSCRIBE); err != nil { return err } // Get the subscription requests of the SUBSCRIBE Packet. subreqs := cli.sess.sendingPackets[id].(*packet.SUBSCRIBE).SubReqs // Delete the SUBSCRIBE Packet from the Session. delete(cli.sess.sendingPackets, id) // Get the Return Codes of the SUBACK Packet. returnCodes := p.(*packet.SUBACK).ReturnCodes // Check the lengths of the Return Codes. if len(returnCodes) != len(subreqs) { return ErrInvalidSUBACK } // Set the subscriptions to the Network Connection. for i, code := range returnCodes { // Skip if the Return Code is failure. if code == packet.SUBACKRetFailure { continue } // Get the Topic Filter. topicFilter := string(subreqs[i].TopicFilter) // Move the subscription information from // unackSubs to ackedSubs. cli.conn.ackedSubs[topicFilter] = cli.conn.unackSubs[topicFilter] delete(cli.conn.unackSubs, topicFilter) } return nil }
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// handleSUBACK handles the SUBACK Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L771-L819
2,210
yosssi/gmq
mqtt/client/client.go
handleUNSUBACK
func (cli *Client) handleUNSUBACK(p packet.Packet) error { // Lock for update. cli.muConn.Lock() cli.muSess.Lock() // Unlock. defer cli.muConn.Unlock() defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.UNSUBACK).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypeUNSUBSCRIBE); err != nil { return err } // Get the Topic Filters of the UNSUBSCRIBE Packet. topicFilters := cli.sess.sendingPackets[id].(*packet.UNSUBSCRIBE).TopicFilters // Delete the UNSUBSCRIBE Packet from the Session. delete(cli.sess.sendingPackets, id) // Delete the Topic Filters from the Network Connection. for _, topicFilter := range topicFilters { delete(cli.conn.ackedSubs, string(topicFilter)) } return nil }
go
func (cli *Client) handleUNSUBACK(p packet.Packet) error { // Lock for update. cli.muConn.Lock() cli.muSess.Lock() // Unlock. defer cli.muConn.Unlock() defer cli.muSess.Unlock() // Extract the Packet Identifier of the Packet. id := p.(*packet.UNSUBACK).PacketID // Validate the Packet Identifier. if err := cli.validatePacketID(cli.sess.sendingPackets, id, packet.TypeUNSUBSCRIBE); err != nil { return err } // Get the Topic Filters of the UNSUBSCRIBE Packet. topicFilters := cli.sess.sendingPackets[id].(*packet.UNSUBSCRIBE).TopicFilters // Delete the UNSUBSCRIBE Packet from the Session. delete(cli.sess.sendingPackets, id) // Delete the Topic Filters from the Network Connection. for _, topicFilter := range topicFilters { delete(cli.conn.ackedSubs, string(topicFilter)) } return nil }
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// handleUNSUBACK handles the UNSUBACK Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L822-L851
2,211
yosssi/gmq
mqtt/client/client.go
handlePINGRESP
func (cli *Client) handlePINGRESP() error { // Lock for reading and updating pingrespcs. cli.conn.muPINGRESPs.Lock() // Check the length of pingrespcs. if len(cli.conn.pingresps) == 0 { // Unlock. cli.conn.muPINGRESPs.Unlock() // Return an error if there is no channel in pingrespcs. return ErrInvalidPINGRESP } // Get the first channel in pingrespcs. pingrespc := cli.conn.pingresps[0] // Remove the first channel from pingrespcs. cli.conn.pingresps = cli.conn.pingresps[1:] // Unlock. cli.conn.muPINGRESPs.Unlock() // Notify the arrival of the PINGRESP Packet if possible. select { case pingrespc <- struct{}{}: default: } return nil }
go
func (cli *Client) handlePINGRESP() error { // Lock for reading and updating pingrespcs. cli.conn.muPINGRESPs.Lock() // Check the length of pingrespcs. if len(cli.conn.pingresps) == 0 { // Unlock. cli.conn.muPINGRESPs.Unlock() // Return an error if there is no channel in pingrespcs. return ErrInvalidPINGRESP } // Get the first channel in pingrespcs. pingrespc := cli.conn.pingresps[0] // Remove the first channel from pingrespcs. cli.conn.pingresps = cli.conn.pingresps[1:] // Unlock. cli.conn.muPINGRESPs.Unlock() // Notify the arrival of the PINGRESP Packet if possible. select { case pingrespc <- struct{}{}: default: } return nil }
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// handlePINGRESP handles the PINGRESP Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L854-L883
2,212
yosssi/gmq
mqtt/client/client.go
handleErrorAndDisconn
func (cli *Client) handleErrorAndDisconn(err error) { // Lock for reading. cli.muConn.RLock() // Ignore the error and end the process // if the Network Connection has already // been disconnected. if cli.conn == nil || cli.conn.disconnected { // Unlock. cli.muConn.RUnlock() return } // Unlock. cli.muConn.RUnlock() // Handle the error. if cli.errorHandler != nil { cli.errorHandler(err) } // Send a disconnect signal to the goroutine // via the channel if possible. select { case cli.disconnc <- struct{}{}: default: } }
go
func (cli *Client) handleErrorAndDisconn(err error) { // Lock for reading. cli.muConn.RLock() // Ignore the error and end the process // if the Network Connection has already // been disconnected. if cli.conn == nil || cli.conn.disconnected { // Unlock. cli.muConn.RUnlock() return } // Unlock. cli.muConn.RUnlock() // Handle the error. if cli.errorHandler != nil { cli.errorHandler(err) } // Send a disconnect signal to the goroutine // via the channel if possible. select { case cli.disconnc <- struct{}{}: default: } }
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// handleError handles the error and disconnects // the Network Connection.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L887-L915
2,213
yosssi/gmq
mqtt/client/client.go
sendPackets
func (cli *Client) sendPackets(keepAlive time.Duration, pingrespTimeout time.Duration) { defer func() { // Lock for reading and updating pingrespcs. cli.conn.muPINGRESPs.Lock() // Close the channels which handle a signal which // notifies the arrival of the PINGREQ Packet. for _, pingresp := range cli.conn.pingresps { close(pingresp) } // Initialize pingrespcs cli.conn.pingresps = make([]chan struct{}, 0) // Unlock. cli.conn.muPINGRESPs.Unlock() cli.conn.wg.Done() }() for { var keepAlivec <-chan time.Time if keepAlive > 0 { keepAlivec = time.After(keepAlive * time.Second) } select { case p := <-cli.conn.send: // Lock for sending the Packet. cli.muConn.RLock() // Send the Packet to the Server. err := cli.send(p) // Unlock. cli.muConn.RUnlock() if err != nil { // Handle the error and disconnect the Network Connection. cli.handleErrorAndDisconn(err) // End this function. return } case <-keepAlivec: // Lock for appending the channel to pingrespcs. cli.conn.muPINGRESPs.Lock() // Create a channel which handles the signal to notify the arrival of // the PINGRESP Packet. pingresp := make(chan struct{}, 1) // Append the channel to pingrespcs. cli.conn.pingresps = append(cli.conn.pingresps, pingresp) // Launch a goroutine which waits for receiving the PINGRESP Packet. cli.conn.wg.Add(1) go cli.waitPacket(pingresp, pingrespTimeout, ErrPINGRESPTimeout) // Unlock. cli.conn.muPINGRESPs.Unlock() // Lock for sending the Packet. cli.muConn.RLock() // Send a PINGREQ Packet to the Server. err := cli.send(packet.NewPINGREQ()) // Unlock. cli.muConn.RUnlock() if err != nil { // Handle the error and disconnect the Network Connection. cli.handleErrorAndDisconn(err) // End this function. return } case <-cli.conn.sendEnd: // End this function. return } } }
go
func (cli *Client) sendPackets(keepAlive time.Duration, pingrespTimeout time.Duration) { defer func() { // Lock for reading and updating pingrespcs. cli.conn.muPINGRESPs.Lock() // Close the channels which handle a signal which // notifies the arrival of the PINGREQ Packet. for _, pingresp := range cli.conn.pingresps { close(pingresp) } // Initialize pingrespcs cli.conn.pingresps = make([]chan struct{}, 0) // Unlock. cli.conn.muPINGRESPs.Unlock() cli.conn.wg.Done() }() for { var keepAlivec <-chan time.Time if keepAlive > 0 { keepAlivec = time.After(keepAlive * time.Second) } select { case p := <-cli.conn.send: // Lock for sending the Packet. cli.muConn.RLock() // Send the Packet to the Server. err := cli.send(p) // Unlock. cli.muConn.RUnlock() if err != nil { // Handle the error and disconnect the Network Connection. cli.handleErrorAndDisconn(err) // End this function. return } case <-keepAlivec: // Lock for appending the channel to pingrespcs. cli.conn.muPINGRESPs.Lock() // Create a channel which handles the signal to notify the arrival of // the PINGRESP Packet. pingresp := make(chan struct{}, 1) // Append the channel to pingrespcs. cli.conn.pingresps = append(cli.conn.pingresps, pingresp) // Launch a goroutine which waits for receiving the PINGRESP Packet. cli.conn.wg.Add(1) go cli.waitPacket(pingresp, pingrespTimeout, ErrPINGRESPTimeout) // Unlock. cli.conn.muPINGRESPs.Unlock() // Lock for sending the Packet. cli.muConn.RLock() // Send a PINGREQ Packet to the Server. err := cli.send(packet.NewPINGREQ()) // Unlock. cli.muConn.RUnlock() if err != nil { // Handle the error and disconnect the Network Connection. cli.handleErrorAndDisconn(err) // End this function. return } case <-cli.conn.sendEnd: // End this function. return } } }
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// sendPackets sends Packets to the Server.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L918-L1002
2,214
yosssi/gmq
mqtt/client/client.go
generatePacketID
func (cli *Client) generatePacketID() (uint16, error) { // Define a Packet Identifier. id := minPacketID for { // Find a Packet Identifier which does not used. if _, exist := cli.sess.sendingPackets[id]; !exist { // Return the Packet Identifier. return id, nil } if id == maxPacketID { break } id++ } // Return an error if available ids are not found. return 0, ErrPacketIDExhaused }
go
func (cli *Client) generatePacketID() (uint16, error) { // Define a Packet Identifier. id := minPacketID for { // Find a Packet Identifier which does not used. if _, exist := cli.sess.sendingPackets[id]; !exist { // Return the Packet Identifier. return id, nil } if id == maxPacketID { break } id++ } // Return an error if available ids are not found. return 0, ErrPacketIDExhaused }
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// generatePacketID generates and returns a Packet Identifier.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L1005-L1025
2,215
yosssi/gmq
mqtt/client/client.go
newPUBLISHPacket
func (cli *Client) newPUBLISHPacket(opts *PublishOptions) (packet.Packet, error) { // Define a Packet Identifier. var packetID uint16 if opts.QoS != mqtt.QoS0 { // Lock for reading and updating the Session. cli.muSess.Lock() defer cli.muSess.Unlock() // Define an error. var err error // Generate a Packet Identifer. if packetID, err = cli.generatePacketID(); err != nil { return nil, err } } // Create a PUBLISH Packet. p, err := packet.NewPUBLISH(&packet.PUBLISHOptions{ QoS: opts.QoS, Retain: opts.Retain, TopicName: opts.TopicName, PacketID: packetID, Message: opts.Message, }) if err != nil { return nil, err } if opts.QoS != mqtt.QoS0 { // Set the Packet to the Session. cli.sess.sendingPackets[packetID] = p } // Return the Packet. return p, nil }
go
func (cli *Client) newPUBLISHPacket(opts *PublishOptions) (packet.Packet, error) { // Define a Packet Identifier. var packetID uint16 if opts.QoS != mqtt.QoS0 { // Lock for reading and updating the Session. cli.muSess.Lock() defer cli.muSess.Unlock() // Define an error. var err error // Generate a Packet Identifer. if packetID, err = cli.generatePacketID(); err != nil { return nil, err } } // Create a PUBLISH Packet. p, err := packet.NewPUBLISH(&packet.PUBLISHOptions{ QoS: opts.QoS, Retain: opts.Retain, TopicName: opts.TopicName, PacketID: packetID, Message: opts.Message, }) if err != nil { return nil, err } if opts.QoS != mqtt.QoS0 { // Set the Packet to the Session. cli.sess.sendingPackets[packetID] = p } // Return the Packet. return p, nil }
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// newPUBLISHPacket creates and returns a PUBLISH Packet.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L1028-L1066
2,216
yosssi/gmq
mqtt/client/client.go
validatePacketID
func (cli *Client) validatePacketID(packets map[uint16]packet.Packet, id uint16, ptype byte) error { // Extract the Packet. p, exist := packets[id] if !exist { // Return an error if there is no Packet which has the Packet Identifier // specified by the parameter. return packet.ErrInvalidPacketID } // Extract the MQTT Control Packet type of the Packet. t, err := p.Type() if err != nil { return err } if t != ptype { // Return an error if the Packet's MQTT Control Packet type does not // equal to one specified by the parameter. return packet.ErrInvalidPacketID } return nil }
go
func (cli *Client) validatePacketID(packets map[uint16]packet.Packet, id uint16, ptype byte) error { // Extract the Packet. p, exist := packets[id] if !exist { // Return an error if there is no Packet which has the Packet Identifier // specified by the parameter. return packet.ErrInvalidPacketID } // Extract the MQTT Control Packet type of the Packet. t, err := p.Type() if err != nil { return err } if t != ptype { // Return an error if the Packet's MQTT Control Packet type does not // equal to one specified by the parameter. return packet.ErrInvalidPacketID } return nil }
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// validateSendingPacketID checks if the Packet which has // the Packet Identifier and the MQTT Control Packet type // specified by the parameters exists in the Session's // sendingPackets.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L1072-L1095
2,217
yosssi/gmq
mqtt/client/client.go
handleMessage
func (cli *Client) handleMessage(topicName, message []byte) { // Get the string of the Topic Name. topicNameStr := string(topicName) for topicFilter, handler := range cli.conn.ackedSubs { if handler == nil || !match(topicNameStr, topicFilter) { continue } // Execute the handler. go handler(topicName, message) } }
go
func (cli *Client) handleMessage(topicName, message []byte) { // Get the string of the Topic Name. topicNameStr := string(topicName) for topicFilter, handler := range cli.conn.ackedSubs { if handler == nil || !match(topicNameStr, topicFilter) { continue } // Execute the handler. go handler(topicName, message) } }
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// handleMessage handles the Application Message.
[ "handleMessage", "handles", "the", "Application", "Message", "." ]
b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L1098-L1110
2,218
yosssi/gmq
mqtt/client/client.go
New
func New(opts *Options) *Client { // Initialize the options. if opts == nil { opts = &Options{} } // Create a Client. cli := &Client{ disconnc: make(chan struct{}, 1), disconnEndc: make(chan struct{}), errorHandler: opts.ErrorHandler, } // Launch a goroutine which disconnects the Network Connection. cli.wg.Add(1) go func() { defer func() { cli.wg.Done() }() for { select { case <-cli.disconnc: if err := cli.Disconnect(); err != nil { if cli.errorHandler != nil { cli.errorHandler(err) } } case <-cli.disconnEndc: // End the goroutine. return } } }() // Return the Client. return cli }
go
func New(opts *Options) *Client { // Initialize the options. if opts == nil { opts = &Options{} } // Create a Client. cli := &Client{ disconnc: make(chan struct{}, 1), disconnEndc: make(chan struct{}), errorHandler: opts.ErrorHandler, } // Launch a goroutine which disconnects the Network Connection. cli.wg.Add(1) go func() { defer func() { cli.wg.Done() }() for { select { case <-cli.disconnc: if err := cli.Disconnect(); err != nil { if cli.errorHandler != nil { cli.errorHandler(err) } } case <-cli.disconnEndc: // End the goroutine. return } } }() // Return the Client. return cli }
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// New creates and returns a Client.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L1113-L1150
2,219
yosssi/gmq
mqtt/client/client.go
match
func match(topicName, topicFilter string) bool { // Tokenize the Topic Name. nameTokens := strings.Split(topicName, "/") nameTokensLen := len(nameTokens) // Tolenize the Topic Filter. filterTokens := strings.Split(topicFilter, "/") for i, t := range filterTokens { switch t { case "#": return i != 0 || !strings.HasPrefix(nameTokens[0], "$") case "+": if i == 0 && strings.HasPrefix(nameTokens[0], "$") { return false } if nameTokensLen <= i { return false } default: if nameTokensLen <= i || t != nameTokens[i] { return false } } } return len(filterTokens) == nameTokensLen }
go
func match(topicName, topicFilter string) bool { // Tokenize the Topic Name. nameTokens := strings.Split(topicName, "/") nameTokensLen := len(nameTokens) // Tolenize the Topic Filter. filterTokens := strings.Split(topicFilter, "/") for i, t := range filterTokens { switch t { case "#": return i != 0 || !strings.HasPrefix(nameTokens[0], "$") case "+": if i == 0 && strings.HasPrefix(nameTokens[0], "$") { return false } if nameTokensLen <= i { return false } default: if nameTokensLen <= i || t != nameTokens[i] { return false } } } return len(filterTokens) == nameTokensLen }
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// match checks if the Topic Name matches the Topic Filter.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/client/client.go#L1153-L1181
2,220
yosssi/gmq
cmd/gmq-cli/command_unsub.go
newCommandUnsub
func newCommandUnsub(args []string, cli *client.Client) (command, error) { // Create a flag set. var flg flag.FlagSet // Define the flags. topicFilter := flg.String("t", "", "Topic Filter") // Parse the flag. if err := flg.Parse(args); err != nil { return nil, errCmdArgsParse } // Create an unsub command. cmd := &commandUnsub{ cli: cli, unsubscribeOpts: &client.UnsubscribeOptions{ TopicFilters: [][]byte{ []byte(*topicFilter), }, }, } // Return the command. return cmd, nil }
go
func newCommandUnsub(args []string, cli *client.Client) (command, error) { // Create a flag set. var flg flag.FlagSet // Define the flags. topicFilter := flg.String("t", "", "Topic Filter") // Parse the flag. if err := flg.Parse(args); err != nil { return nil, errCmdArgsParse } // Create an unsub command. cmd := &commandUnsub{ cli: cli, unsubscribeOpts: &client.UnsubscribeOptions{ TopicFilters: [][]byte{ []byte(*topicFilter), }, }, } // Return the command. return cmd, nil }
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// newCommandUnsub creates and returns an unsub command.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/cmd/gmq-cli/command_unsub.go#L24-L48
2,221
yosssi/gmq
mqtt/packet/base.go
WriteTo
func (b *base) WriteTo(w io.Writer) (int64, error) { // Create a byte buffer. var bf bytes.Buffer // Write the Packet data to the buffer. bf.Write(b.fixedHeader) bf.Write(b.variableHeader) bf.Write(b.payload) // Write the buffered data to the writer. n, err := w.Write(bf.Bytes()) // Return the result. return int64(n), err }
go
func (b *base) WriteTo(w io.Writer) (int64, error) { // Create a byte buffer. var bf bytes.Buffer // Write the Packet data to the buffer. bf.Write(b.fixedHeader) bf.Write(b.variableHeader) bf.Write(b.payload) // Write the buffered data to the writer. n, err := w.Write(bf.Bytes()) // Return the result. return int64(n), err }
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// WriteTo writes the Packet data to the writer.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/packet/base.go#L20-L34
2,222
yosssi/gmq
mqtt/packet/base.go
appendRemainingLength
func (b *base) appendRemainingLength() { // Calculate and encode the Remaining Length. rl := encodeLength(uint32(len(b.variableHeader) + len(b.payload))) // Append the Remaining Length to the fixed header. b.fixedHeader = appendRemainingLength(b.fixedHeader, rl) }
go
func (b *base) appendRemainingLength() { // Calculate and encode the Remaining Length. rl := encodeLength(uint32(len(b.variableHeader) + len(b.payload))) // Append the Remaining Length to the fixed header. b.fixedHeader = appendRemainingLength(b.fixedHeader, rl) }
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// appendRemainingLength appends the Remaining Length // to the fixed header.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/packet/base.go#L44-L50
2,223
yosssi/gmq
mqtt/packet/base.go
appendRemainingLength
func appendRemainingLength(b []byte, rl uint32) []byte { // Append the Remaining Length to the slice. switch { case rl&0xFF000000 > 0: b = append(b, byte((rl&0xFF000000)>>24)) fallthrough case rl&0x00FF0000 > 0: b = append(b, byte((rl&0x00FF0000)>>16)) fallthrough case rl&0x0000FF00 > 0: b = append(b, byte((rl&0x0000FF00)>>8)) fallthrough default: b = append(b, byte(rl&0x000000FF)) } // Return the slice. return b }
go
func appendRemainingLength(b []byte, rl uint32) []byte { // Append the Remaining Length to the slice. switch { case rl&0xFF000000 > 0: b = append(b, byte((rl&0xFF000000)>>24)) fallthrough case rl&0x00FF0000 > 0: b = append(b, byte((rl&0x00FF0000)>>16)) fallthrough case rl&0x0000FF00 > 0: b = append(b, byte((rl&0x0000FF00)>>8)) fallthrough default: b = append(b, byte(rl&0x000000FF)) } // Return the slice. return b }
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// appendRemainingLength appends the Remaining Length // to the slice and returns it.
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b221999646da8ea48ff0796c2b0191aa510d062e
https://github.com/yosssi/gmq/blob/b221999646da8ea48ff0796c2b0191aa510d062e/mqtt/packet/base.go#L54-L72
2,224
ogier/pflag
flag.go
PrintDefaults
func (f *FlagSet) PrintDefaults() { f.VisitAll(func(flag *Flag) { s := "" if len(flag.Shorthand) > 0 { s = fmt.Sprintf(" -%s, --%s", flag.Shorthand, flag.Name) } else { s = fmt.Sprintf(" --%s", flag.Name) } name, usage := UnquoteUsage(flag) if len(name) > 0 { s += " " + name } s += "\n \t" s += usage if !isZeroValue(flag.DefValue) { if _, ok := flag.Value.(*stringValue); ok { // put quotes on the value s += fmt.Sprintf(" (default %q)", flag.DefValue) } else { s += fmt.Sprintf(" (default %v)", flag.DefValue) } } fmt.Fprint(f.out(), s, "\n") }) }
go
func (f *FlagSet) PrintDefaults() { f.VisitAll(func(flag *Flag) { s := "" if len(flag.Shorthand) > 0 { s = fmt.Sprintf(" -%s, --%s", flag.Shorthand, flag.Name) } else { s = fmt.Sprintf(" --%s", flag.Name) } name, usage := UnquoteUsage(flag) if len(name) > 0 { s += " " + name } s += "\n \t" s += usage if !isZeroValue(flag.DefValue) { if _, ok := flag.Value.(*stringValue); ok { // put quotes on the value s += fmt.Sprintf(" (default %q)", flag.DefValue) } else { s += fmt.Sprintf(" (default %v)", flag.DefValue) } } fmt.Fprint(f.out(), s, "\n") }) }
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// PrintDefaults prints to standard error the default values of all // defined command-line flags in the set. See the documentation for // the global function PrintDefaults for more information.
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45c278ab3607870051a2ea9040bb85fcb8557481
https://github.com/ogier/pflag/blob/45c278ab3607870051a2ea9040bb85fcb8557481/flag.go#L296-L322
2,225
ogier/pflag
ip.go
IP
func (f *FlagSet) IP(name string, value net.IP, usage string) *net.IP { p := new(net.IP) f.IPVarP(p, name, "", value, usage) return p }
go
func (f *FlagSet) IP(name string, value net.IP, usage string) *net.IP { p := new(net.IP) f.IPVarP(p, name, "", value, usage) return p }
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// IP defines an net.IP flag with specified name, default value, and usage string. // The return value is the address of an net.IP variable that stores the value of the flag.
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45c278ab3607870051a2ea9040bb85fcb8557481
https://github.com/ogier/pflag/blob/45c278ab3607870051a2ea9040bb85fcb8557481/ip.go#L53-L57
2,226
ogier/pflag
ip.go
IPP
func IPP(name, shorthand string, value net.IP, usage string) *net.IP { return CommandLine.IPP(name, shorthand, value, usage) }
go
func IPP(name, shorthand string, value net.IP, usage string) *net.IP { return CommandLine.IPP(name, shorthand, value, usage) }
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// Like IP, but accepts a shorthand letter that can be used after a single dash.
[ "Like", "IP", "but", "accepts", "a", "shorthand", "letter", "that", "can", "be", "used", "after", "a", "single", "dash", "." ]
45c278ab3607870051a2ea9040bb85fcb8557481
https://github.com/ogier/pflag/blob/45c278ab3607870051a2ea9040bb85fcb8557481/ip.go#L73-L75
2,227
tucnak/climax
context.go
Is
func (c *Context) Is(flagName string) bool { if _, ok := c.NonVariable[flagName]; ok { return true } if _, ok := c.Variable[flagName]; ok { return true } return false }
go
func (c *Context) Is(flagName string) bool { if _, ok := c.NonVariable[flagName]; ok { return true } if _, ok := c.Variable[flagName]; ok { return true } return false }
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// Is returns true if a flag with corresponding name is defined.
[ "Is", "returns", "true", "if", "a", "flag", "with", "corresponding", "name", "is", "defined", "." ]
da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26
https://github.com/tucnak/climax/blob/da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26/context.go#L33-L43
2,228
tucnak/climax
application.go
AddGroup
func (a *Application) AddGroup(name string) string { a.Groups = append(a.Groups, Group{Name: name}) return name }
go
func (a *Application) AddGroup(name string) string { a.Groups = append(a.Groups, Group{Name: name}) return name }
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// AddGroup adds a new empty, named group. // // Pass the returned group name to Command's Group member // to make the command part of the group.
[ "AddGroup", "adds", "a", "new", "empty", "named", "group", ".", "Pass", "the", "returned", "group", "name", "to", "Command", "s", "Group", "member", "to", "make", "the", "command", "part", "of", "the", "group", "." ]
da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26
https://github.com/tucnak/climax/blob/da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26/application.go#L101-L104
2,229
tucnak/climax
application.go
AddCommand
func (a *Application) AddCommand(command Command) { a.Commands = append(a.Commands, command) newCmd := &a.Commands[len(a.Commands)-1] if newCmd.Group != "" { group := a.groupByName(newCmd.Group) if group == nil { panic("group doesn't exist") } group.Commands = append(group.Commands, newCmd) } else { a.ungroupedCmdsCount++ } }
go
func (a *Application) AddCommand(command Command) { a.Commands = append(a.Commands, command) newCmd := &a.Commands[len(a.Commands)-1] if newCmd.Group != "" { group := a.groupByName(newCmd.Group) if group == nil { panic("group doesn't exist") } group.Commands = append(group.Commands, newCmd) } else { a.ungroupedCmdsCount++ } }
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// AddCommand does literally what its name says.
[ "AddCommand", "does", "literally", "what", "its", "name", "says", "." ]
da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26
https://github.com/tucnak/climax/blob/da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26/application.go#L107-L121
2,230
tucnak/climax
application.go
AddTopic
func (a *Application) AddTopic(topic Topic) { a.Topics = append(a.Topics, topic) }
go
func (a *Application) AddTopic(topic Topic) { a.Topics = append(a.Topics, topic) }
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// AddTopic does literally what its name says.
[ "AddTopic", "does", "literally", "what", "its", "name", "says", "." ]
da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26
https://github.com/tucnak/climax/blob/da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26/application.go#L124-L126
2,231
tucnak/climax
command.go
AddFlag
func (c *Command) AddFlag(newFlag Flag) { c.Flags = append(c.Flags, newFlag) }
go
func (c *Command) AddFlag(newFlag Flag) { c.Flags = append(c.Flags, newFlag) }
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// AddFlag does literally what its name says.
[ "AddFlag", "does", "literally", "what", "its", "name", "says", "." ]
da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26
https://github.com/tucnak/climax/blob/da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26/command.go#L57-L59
2,232
tucnak/climax
command.go
AddExample
func (c *Command) AddExample(newExample Example) { c.Examples = append(c.Examples, newExample) }
go
func (c *Command) AddExample(newExample Example) { c.Examples = append(c.Examples, newExample) }
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// AddExample does exactly what its name says.
[ "AddExample", "does", "exactly", "what", "its", "name", "says", "." ]
da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26
https://github.com/tucnak/climax/blob/da4c02f3b1f8ee2c27bb2a8910fe692900d8fc26/command.go#L62-L64
2,233
schemalex/schemalex
tokens_gen.go
NewToken
func NewToken(t TokenType, v string) *Token { return &Token{Type: t, Value: v} }
go
func NewToken(t TokenType, v string) *Token { return &Token{Type: t, Value: v} }
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// NewToken creates a new token of type `t`, with value `v`
[ "NewToken", "creates", "a", "new", "token", "of", "type", "t", "with", "value", "v" ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/tokens_gen.go#L19-L21
2,234
schemalex/schemalex
model/statement.go
Lookup
func (s Stmts) Lookup(id string) (Stmt, bool) { for _, stmt := range s { if stmt.ID() == id { return stmt, true } } return nil, false }
go
func (s Stmts) Lookup(id string) (Stmt, bool) { for _, stmt := range s { if stmt.ID() == id { return stmt, true } } return nil, false }
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// Lookup looks for a statement with the given ID
[ "Lookup", "looks", "for", "a", "statement", "with", "the", "given", "ID" ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/model/statement.go#L4-L11
2,235
schemalex/schemalex
model/columns_gen.go
SynonymType
func (c ColumnType) SynonymType() ColumnType { switch c { case ColumnTypeBool: return ColumnTypeTinyInt case ColumnTypeBoolean: return ColumnTypeTinyInt case ColumnTypeInteger: return ColumnTypeInt case ColumnTypeNumeric: return ColumnTypeDecimal case ColumnTypeReal: return ColumnTypeDouble } return c }
go
func (c ColumnType) SynonymType() ColumnType { switch c { case ColumnTypeBool: return ColumnTypeTinyInt case ColumnTypeBoolean: return ColumnTypeTinyInt case ColumnTypeInteger: return ColumnTypeInt case ColumnTypeNumeric: return ColumnTypeDecimal case ColumnTypeReal: return ColumnTypeDouble } return c }
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// SynonymType returns synonym for a given type. // If the type does not have a synonym then this method returns the receiver itself
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082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/model/columns_gen.go#L126-L140
2,236
schemalex/schemalex
model/index.go
NewIndex
func NewIndex(kind IndexKind, table string) Index { return &index{ kind: kind, table: table, } }
go
func NewIndex(kind IndexKind, table string) Index { return &index{ kind: kind, table: table, } }
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// NewIndex creates a new index with the given index kind.
[ "NewIndex", "creates", "a", "new", "index", "with", "the", "given", "index", "kind", "." ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/model/index.go#L9-L14
2,237
schemalex/schemalex
errors.go
Error
func (e parseError) Error() string { var buf bytes.Buffer buf.WriteString("parse error: ") buf.WriteString(e.message) if f := e.file; len(f) > 0 { buf.WriteString(" in file ") buf.WriteString(f) } buf.WriteString(" at line ") buf.WriteString(strconv.Itoa(e.line)) buf.WriteString(" column ") buf.WriteString(strconv.Itoa(e.col)) if e.eof { buf.WriteString(" (at EOF)") } buf.WriteString("\n ") buf.WriteString(e.context) return buf.String() }
go
func (e parseError) Error() string { var buf bytes.Buffer buf.WriteString("parse error: ") buf.WriteString(e.message) if f := e.file; len(f) > 0 { buf.WriteString(" in file ") buf.WriteString(f) } buf.WriteString(" at line ") buf.WriteString(strconv.Itoa(e.line)) buf.WriteString(" column ") buf.WriteString(strconv.Itoa(e.col)) if e.eof { buf.WriteString(" (at EOF)") } buf.WriteString("\n ") buf.WriteString(e.context) return buf.String() }
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// Error returns the formatted string representation of this parse error.
[ "Error", "returns", "the", "formatted", "string", "representation", "of", "this", "parse", "error", "." ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/errors.go#L49-L67
2,238
schemalex/schemalex
source.go
NewLocalGitSource
func NewLocalGitSource(gitDir, file, commitish string) SchemaSource { return &localGitSource{ dir: gitDir, file: file, commitish: commitish, } }
go
func NewLocalGitSource(gitDir, file, commitish string) SchemaSource { return &localGitSource{ dir: gitDir, file: file, commitish: commitish, } }
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// NewLocalGitSource creates a SchemaSource whose contents are derived from // the given file at the given commit ID in a git repository.
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082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/source.go#L110-L116
2,239
schemalex/schemalex
model/table.go
NewTable
func NewTable(name string) Table { return &table{ name: name, columnNameToIndex: make(map[string]int), } }
go
func NewTable(name string) Table { return &table{ name: name, columnNameToIndex: make(map[string]int), } }
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// NewTable create a new table with the given name
[ "NewTable", "create", "a", "new", "table", "with", "the", "given", "name" ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/model/table.go#L4-L9
2,240
schemalex/schemalex
model/table.go
NewTableOption
func NewTableOption(k, v string, q bool) TableOption { return &tableopt{ key: k, value: v, needQuotes: q, } }
go
func NewTableOption(k, v string, q bool) TableOption { return &tableopt{ key: k, value: v, needQuotes: q, } }
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// NewTableOption creates a new table option with the given name, value, and a flag indicating if quoting is necessary
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082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/model/table.go#L257-L263
2,241
schemalex/schemalex
parser.go
ParseFile
func (p *Parser) ParseFile(fn string) (model.Stmts, error) { src, err := ioutil.ReadFile(fn) if err != nil { return nil, errors.Wrapf(err, `failed to open file %s`, fn) } stmts, err := p.Parse(src) if err != nil { if pe, ok := err.(*parseError); ok { pe.file = fn } return nil, err } return stmts, nil }
go
func (p *Parser) ParseFile(fn string) (model.Stmts, error) { src, err := ioutil.ReadFile(fn) if err != nil { return nil, errors.Wrapf(err, `failed to open file %s`, fn) } stmts, err := p.Parse(src) if err != nil { if pe, ok := err.(*parseError); ok { pe.file = fn } return nil, err } return stmts, nil }
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// ParseFile parses a file containing SQL statements and creates // a mode.Stmts structure. // See Parse for details.
[ "ParseFile", "parses", "a", "file", "containing", "SQL", "statements", "and", "creates", "a", "mode", ".", "Stmts", "structure", ".", "See", "Parse", "for", "details", "." ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/parser.go#L119-L133
2,242
schemalex/schemalex
parser.go
ParseString
func (p *Parser) ParseString(src string) (model.Stmts, error) { return p.Parse([]byte(src)) }
go
func (p *Parser) ParseString(src string) (model.Stmts, error) { return p.Parse([]byte(src)) }
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// ParseString parses a string containing SQL statements and creates // a mode.Stmts structure. // See Parse for details.
[ "ParseString", "parses", "a", "string", "containing", "SQL", "statements", "and", "creates", "a", "mode", ".", "Stmts", "structure", ".", "See", "Parse", "for", "details", "." ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/parser.go#L138-L140
2,243
schemalex/schemalex
parser.go
Parse
func (p *Parser) Parse(src []byte) (model.Stmts, error) { cctx, cancel := context.WithCancel(context.TODO()) defer cancel() ctx := newParseCtx(cctx) ctx.input = src ctx.lexsrc = lex(cctx, src) var stmts model.Stmts LOOP: for { ctx.skipWhiteSpaces() switch t := ctx.peek(); t.Type { case CREATE: stmt, err := p.parseCreate(ctx) if err != nil { if errors.IsIgnorable(err) { // this is ignorable. continue } if pe, ok := err.(ParseError); ok { return nil, pe } return nil, errors.Wrap(err, `failed to parse create`) } stmts = append(stmts, stmt) case COMMENT_IDENT: ctx.advance() case DROP, SET, USE: // We don't do anything about these S1: for { switch t := ctx.peek(); t.Type { case SEMICOLON: ctx.advance() fallthrough case EOF: break S1 default: ctx.advance() } } case SEMICOLON: // you could have statements where it's just empty, followed by a // semicolon. These are just empty lines, so we just skip and go // process the next statement ctx.advance() continue case EOF: ctx.advance() break LOOP default: return nil, newParseError(ctx, t, "expected CREATE, COMMENT_IDENT, SEMICOLON or EOF") } } return stmts, nil }
go
func (p *Parser) Parse(src []byte) (model.Stmts, error) { cctx, cancel := context.WithCancel(context.TODO()) defer cancel() ctx := newParseCtx(cctx) ctx.input = src ctx.lexsrc = lex(cctx, src) var stmts model.Stmts LOOP: for { ctx.skipWhiteSpaces() switch t := ctx.peek(); t.Type { case CREATE: stmt, err := p.parseCreate(ctx) if err != nil { if errors.IsIgnorable(err) { // this is ignorable. continue } if pe, ok := err.(ParseError); ok { return nil, pe } return nil, errors.Wrap(err, `failed to parse create`) } stmts = append(stmts, stmt) case COMMENT_IDENT: ctx.advance() case DROP, SET, USE: // We don't do anything about these S1: for { switch t := ctx.peek(); t.Type { case SEMICOLON: ctx.advance() fallthrough case EOF: break S1 default: ctx.advance() } } case SEMICOLON: // you could have statements where it's just empty, followed by a // semicolon. These are just empty lines, so we just skip and go // process the next statement ctx.advance() continue case EOF: ctx.advance() break LOOP default: return nil, newParseError(ctx, t, "expected CREATE, COMMENT_IDENT, SEMICOLON or EOF") } } return stmts, nil }
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// Parse parses the given set of SQL statements and creates a // model.Stmts structure. // If it encounters errors while parsing, the returned error will be a // ParseError type.
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082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/parser.go#L146-L203
2,244
schemalex/schemalex
diff/diff.go
Statements
func Statements(dst io.Writer, from, to model.Stmts, options ...Option) error { var txn bool for _, o := range options { switch o.Name() { case optkeyTransaction: txn = o.Value().(bool) } } ctx := newDiffCtx(from, to) var procs = []func(*diffCtx, io.Writer) (int64, error){ dropTables, createTables, alterTables, } var buf bytes.Buffer if txn { buf.WriteString("\nBEGIN;\n\nSET FOREIGN_KEY_CHECKS = 0;") } for _, p := range procs { var pbuf bytes.Buffer n, err := p(ctx, &pbuf) if err != nil { return errors.Wrap(err, `failed to produce diff`) } if txn && n > 0 || !txn && buf.Len() > 0 && n > 0 { buf.WriteString("\n\n") } pbuf.WriteTo(&buf) } if txn { buf.WriteString("\n\nSET FOREIGN_KEY_CHECKS = 1;\n\nCOMMIT;") } if _, err := buf.WriteTo(dst); err != nil { return errors.Wrap(err, `failed to write diff`) } return nil }
go
func Statements(dst io.Writer, from, to model.Stmts, options ...Option) error { var txn bool for _, o := range options { switch o.Name() { case optkeyTransaction: txn = o.Value().(bool) } } ctx := newDiffCtx(from, to) var procs = []func(*diffCtx, io.Writer) (int64, error){ dropTables, createTables, alterTables, } var buf bytes.Buffer if txn { buf.WriteString("\nBEGIN;\n\nSET FOREIGN_KEY_CHECKS = 0;") } for _, p := range procs { var pbuf bytes.Buffer n, err := p(ctx, &pbuf) if err != nil { return errors.Wrap(err, `failed to produce diff`) } if txn && n > 0 || !txn && buf.Len() > 0 && n > 0 { buf.WriteString("\n\n") } pbuf.WriteTo(&buf) } if txn { buf.WriteString("\n\nSET FOREIGN_KEY_CHECKS = 1;\n\nCOMMIT;") } if _, err := buf.WriteTo(dst); err != nil { return errors.Wrap(err, `failed to write diff`) } return nil }
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// Statements compares two model.Stmts and generates a series // of statements to migrate from the old one to the new one, // writing the result to `dst`
[ "Statements", "compares", "two", "model", ".", "Stmts", "and", "generates", "a", "series", "of", "statements", "to", "migrate", "from", "the", "old", "one", "to", "the", "new", "one", "writing", "the", "result", "to", "dst" ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/diff/diff.go#L50-L91
2,245
schemalex/schemalex
diff/diff.go
Strings
func Strings(dst io.Writer, from, to string, options ...Option) error { var p *schemalex.Parser for _, o := range options { switch o.Name() { case optkeyParser: p = o.Value().(*schemalex.Parser) } } if p == nil { p = schemalex.New() } stmts1, err := p.ParseString(from) if err != nil { return errors.Wrapf(err, `failed to parse "from" %s`, from) } stmts2, err := p.ParseString(to) if err != nil { return errors.Wrapf(err, `failed to parse "to" %s`, to) } return Statements(dst, stmts1, stmts2, options...) }
go
func Strings(dst io.Writer, from, to string, options ...Option) error { var p *schemalex.Parser for _, o := range options { switch o.Name() { case optkeyParser: p = o.Value().(*schemalex.Parser) } } if p == nil { p = schemalex.New() } stmts1, err := p.ParseString(from) if err != nil { return errors.Wrapf(err, `failed to parse "from" %s`, from) } stmts2, err := p.ParseString(to) if err != nil { return errors.Wrapf(err, `failed to parse "to" %s`, to) } return Statements(dst, stmts1, stmts2, options...) }
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// Strings compares two strings and generates a series // of statements to migrate from the old one to the new one, // writing the result to `dst`
[ "Strings", "compares", "two", "strings", "and", "generates", "a", "series", "of", "statements", "to", "migrate", "from", "the", "old", "one", "to", "the", "new", "one", "writing", "the", "result", "to", "dst" ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/diff/diff.go#L96-L119
2,246
schemalex/schemalex
diff/diff.go
Files
func Files(dst io.Writer, from, to string, options ...Option) error { return Sources(dst, schemalex.NewLocalFileSource(from), schemalex.NewLocalFileSource(to), options...) }
go
func Files(dst io.Writer, from, to string, options ...Option) error { return Sources(dst, schemalex.NewLocalFileSource(from), schemalex.NewLocalFileSource(to), options...) }
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// Files compares contents of two files and generates a series // of statements to migrate from the old one to the new one, // writing the result to `dst`
[ "Files", "compares", "contents", "of", "two", "files", "and", "generates", "a", "series", "of", "statements", "to", "migrate", "from", "the", "old", "one", "to", "the", "new", "one", "writing", "the", "result", "to", "dst" ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/diff/diff.go#L124-L126
2,247
schemalex/schemalex
diff/diff.go
Sources
func Sources(dst io.Writer, from, to schemalex.SchemaSource, options ...Option) error { var buf bytes.Buffer if err := from.WriteSchema(&buf); err != nil { return errors.Wrapf(err, `failed to retrieve schema from "from" source %s`, from) } fromStr := buf.String() buf.Reset() if err := to.WriteSchema(&buf); err != nil { return errors.Wrapf(err, `failed to retrieve schema from "to" source %s`, to) } return Strings(dst, fromStr, buf.String(), options...) }
go
func Sources(dst io.Writer, from, to schemalex.SchemaSource, options ...Option) error { var buf bytes.Buffer if err := from.WriteSchema(&buf); err != nil { return errors.Wrapf(err, `failed to retrieve schema from "from" source %s`, from) } fromStr := buf.String() buf.Reset() if err := to.WriteSchema(&buf); err != nil { return errors.Wrapf(err, `failed to retrieve schema from "to" source %s`, to) } return Strings(dst, fromStr, buf.String(), options...) }
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// Files compares contents from two sources and generates a series // of statements to migrate from the old one to the new one, // writing the result to `dst`
[ "Files", "compares", "contents", "from", "two", "sources", "and", "generates", "a", "series", "of", "statements", "to", "migrate", "from", "the", "old", "one", "to", "the", "new", "one", "writing", "the", "result", "to", "dst" ]
082f7dd92f9145e57574d872d4718fe5145d9c12
https://github.com/schemalex/schemalex/blob/082f7dd92f9145e57574d872d4718fe5145d9c12/diff/diff.go#L131-L143
2,248
mitchellh/copystructure
copystructure.go
lock
func (w *walker) lock(v reflect.Value) { if !w.useLocks { return } if !v.IsValid() || !v.CanInterface() { return } type rlocker interface { RLocker() sync.Locker } var locker sync.Locker // We can't call Interface() on a value directly, since that requires // a copy. This is OK, since the pointer to a value which is a sync.Locker // is also a sync.Locker. if v.Kind() == reflect.Ptr { switch l := v.Interface().(type) { case rlocker: // don't lock a mutex directly if _, ok := l.(*sync.RWMutex); !ok { locker = l.RLocker() } case sync.Locker: locker = l } } else if v.CanAddr() { switch l := v.Addr().Interface().(type) { case rlocker: // don't lock a mutex directly if _, ok := l.(*sync.RWMutex); !ok { locker = l.RLocker() } case sync.Locker: locker = l } } // still no callable locker if locker == nil { return } // don't lock a mutex directly switch locker.(type) { case *sync.Mutex, *sync.RWMutex: return } locker.Lock() w.locks[w.depth] = locker }
go
func (w *walker) lock(v reflect.Value) { if !w.useLocks { return } if !v.IsValid() || !v.CanInterface() { return } type rlocker interface { RLocker() sync.Locker } var locker sync.Locker // We can't call Interface() on a value directly, since that requires // a copy. This is OK, since the pointer to a value which is a sync.Locker // is also a sync.Locker. if v.Kind() == reflect.Ptr { switch l := v.Interface().(type) { case rlocker: // don't lock a mutex directly if _, ok := l.(*sync.RWMutex); !ok { locker = l.RLocker() } case sync.Locker: locker = l } } else if v.CanAddr() { switch l := v.Addr().Interface().(type) { case rlocker: // don't lock a mutex directly if _, ok := l.(*sync.RWMutex); !ok { locker = l.RLocker() } case sync.Locker: locker = l } } // still no callable locker if locker == nil { return } // don't lock a mutex directly switch locker.(type) { case *sync.Mutex, *sync.RWMutex: return } locker.Lock() w.locks[w.depth] = locker }
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// if this value is a Locker, lock it and add it to the locks slice
[ "if", "this", "value", "is", "a", "Locker", "lock", "it", "and", "add", "it", "to", "the", "locks", "slice" ]
9a1b6f44e8da0e0e374624fb0a825a231b00c537
https://github.com/mitchellh/copystructure/blob/9a1b6f44e8da0e0e374624fb0a825a231b00c537/copystructure.go#L484-L537
2,249
natefinch/npipe
npipe_windows.go
DialTimeout
func DialTimeout(address string, timeout time.Duration) (*PipeConn, error) { deadline := time.Now().Add(timeout) now := time.Now() for now.Before(deadline) { millis := uint32(deadline.Sub(now) / time.Millisecond) conn, err := dial(address, millis) if err == nil { return conn, nil } if err == error_sem_timeout { // This is WaitNamedPipe's timeout error, so we know we're done return nil, PipeError{fmt.Sprintf( "Timed out waiting for pipe '%s' to come available", address), true} } if isPipeNotReady(err) { left := deadline.Sub(time.Now()) retry := 100 * time.Millisecond if left > retry { <-time.After(retry) } else { <-time.After(left - time.Millisecond) } now = time.Now() continue } return nil, err } return nil, PipeError{fmt.Sprintf( "Timed out waiting for pipe '%s' to come available", address), true} }
go
func DialTimeout(address string, timeout time.Duration) (*PipeConn, error) { deadline := time.Now().Add(timeout) now := time.Now() for now.Before(deadline) { millis := uint32(deadline.Sub(now) / time.Millisecond) conn, err := dial(address, millis) if err == nil { return conn, nil } if err == error_sem_timeout { // This is WaitNamedPipe's timeout error, so we know we're done return nil, PipeError{fmt.Sprintf( "Timed out waiting for pipe '%s' to come available", address), true} } if isPipeNotReady(err) { left := deadline.Sub(time.Now()) retry := 100 * time.Millisecond if left > retry { <-time.After(retry) } else { <-time.After(left - time.Millisecond) } now = time.Now() continue } return nil, err } return nil, PipeError{fmt.Sprintf( "Timed out waiting for pipe '%s' to come available", address), true} }
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// DialTimeout acts like Dial, but will time out after the duration of timeout
[ "DialTimeout", "acts", "like", "Dial", "but", "will", "time", "out", "after", "the", "duration", "of", "timeout" ]
c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6
https://github.com/natefinch/npipe/blob/c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6/npipe_windows.go#L126-L156
2,250
natefinch/npipe
npipe_windows.go
dial
func dial(address string, timeout uint32) (*PipeConn, error) { name, err := syscall.UTF16PtrFromString(string(address)) if err != nil { return nil, err } // If at least one instance of the pipe has been created, this function // will wait timeout milliseconds for it to become available. // It will return immediately regardless of timeout, if no instances // of the named pipe have been created yet. // If this returns with no error, there is a pipe available. if err := waitNamedPipe(name, timeout); err != nil { if err == error_bad_pathname { // badly formatted pipe name return nil, badAddr(address) } return nil, err } pathp, err := syscall.UTF16PtrFromString(address) if err != nil { return nil, err } handle, err := syscall.CreateFile(pathp, syscall.GENERIC_READ|syscall.GENERIC_WRITE, uint32(syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE), nil, syscall.OPEN_EXISTING, syscall.FILE_FLAG_OVERLAPPED, 0) if err != nil { return nil, err } return &PipeConn{handle: handle, addr: PipeAddr(address)}, nil }
go
func dial(address string, timeout uint32) (*PipeConn, error) { name, err := syscall.UTF16PtrFromString(string(address)) if err != nil { return nil, err } // If at least one instance of the pipe has been created, this function // will wait timeout milliseconds for it to become available. // It will return immediately regardless of timeout, if no instances // of the named pipe have been created yet. // If this returns with no error, there is a pipe available. if err := waitNamedPipe(name, timeout); err != nil { if err == error_bad_pathname { // badly formatted pipe name return nil, badAddr(address) } return nil, err } pathp, err := syscall.UTF16PtrFromString(address) if err != nil { return nil, err } handle, err := syscall.CreateFile(pathp, syscall.GENERIC_READ|syscall.GENERIC_WRITE, uint32(syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE), nil, syscall.OPEN_EXISTING, syscall.FILE_FLAG_OVERLAPPED, 0) if err != nil { return nil, err } return &PipeConn{handle: handle, addr: PipeAddr(address)}, nil }
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// dial is a helper to initiate a connection to a named pipe that has been started by a server. // The timeout is only enforced if the pipe server has already created the pipe, otherwise // this function will return immediately.
[ "dial", "is", "a", "helper", "to", "initiate", "a", "connection", "to", "a", "named", "pipe", "that", "has", "been", "started", "by", "a", "server", ".", "The", "timeout", "is", "only", "enforced", "if", "the", "pipe", "server", "has", "already", "create...
c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6
https://github.com/natefinch/npipe/blob/c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6/npipe_windows.go#L194-L222
2,251
natefinch/npipe
npipe_windows.go
Accept
func (l *PipeListener) Accept() (net.Conn, error) { c, err := l.AcceptPipe() for err == error_no_data { // Ignore clients that connect and immediately disconnect. c, err = l.AcceptPipe() } if err != nil { return nil, err } return c, nil }
go
func (l *PipeListener) Accept() (net.Conn, error) { c, err := l.AcceptPipe() for err == error_no_data { // Ignore clients that connect and immediately disconnect. c, err = l.AcceptPipe() } if err != nil { return nil, err } return c, nil }
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// Accept implements the Accept method in the net.Listener interface; it // waits for the next call and returns a generic net.Conn.
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c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6
https://github.com/natefinch/npipe/blob/c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6/npipe_windows.go#L262-L272
2,252
natefinch/npipe
npipe_windows.go
AcceptPipe
func (l *PipeListener) AcceptPipe() (*PipeConn, error) { if l == nil { return nil, syscall.EINVAL } l.mu.Lock() defer l.mu.Unlock() if l.addr == "" || l.closed { return nil, syscall.EINVAL } // the first time we call accept, the handle will have been created by the Listen // call. This is to prevent race conditions where the client thinks the server // isn't listening because it hasn't actually called create yet. After the first time, we'll // have to create a new handle each time handle := l.handle if handle == 0 { var err error handle, err = createPipe(string(l.addr), false) if err != nil { return nil, err } } else { l.handle = 0 } overlapped, err := newOverlapped() if err != nil { return nil, err } defer syscall.CloseHandle(overlapped.HEvent) err = connectNamedPipe(handle, overlapped) if err == nil || err == error_pipe_connected { return &PipeConn{handle: handle, addr: l.addr}, nil } if err == error_io_incomplete || err == syscall.ERROR_IO_PENDING { l.acceptOverlapped = overlapped l.acceptHandle = handle // unlock here so close can function correctly while we wait (we'll // get relocked via the defer below, before the original defer // unlock happens.) l.mu.Unlock() defer func() { l.mu.Lock() l.acceptOverlapped = nil l.acceptHandle = 0 // unlock is via defer above. }() _, err = waitForCompletion(handle, overlapped) } if err == syscall.ERROR_OPERATION_ABORTED { // Return error compatible to net.Listener.Accept() in case the // listener was closed. return nil, ErrClosed } if err != nil { return nil, err } return &PipeConn{handle: handle, addr: l.addr}, nil }
go
func (l *PipeListener) AcceptPipe() (*PipeConn, error) { if l == nil { return nil, syscall.EINVAL } l.mu.Lock() defer l.mu.Unlock() if l.addr == "" || l.closed { return nil, syscall.EINVAL } // the first time we call accept, the handle will have been created by the Listen // call. This is to prevent race conditions where the client thinks the server // isn't listening because it hasn't actually called create yet. After the first time, we'll // have to create a new handle each time handle := l.handle if handle == 0 { var err error handle, err = createPipe(string(l.addr), false) if err != nil { return nil, err } } else { l.handle = 0 } overlapped, err := newOverlapped() if err != nil { return nil, err } defer syscall.CloseHandle(overlapped.HEvent) err = connectNamedPipe(handle, overlapped) if err == nil || err == error_pipe_connected { return &PipeConn{handle: handle, addr: l.addr}, nil } if err == error_io_incomplete || err == syscall.ERROR_IO_PENDING { l.acceptOverlapped = overlapped l.acceptHandle = handle // unlock here so close can function correctly while we wait (we'll // get relocked via the defer below, before the original defer // unlock happens.) l.mu.Unlock() defer func() { l.mu.Lock() l.acceptOverlapped = nil l.acceptHandle = 0 // unlock is via defer above. }() _, err = waitForCompletion(handle, overlapped) } if err == syscall.ERROR_OPERATION_ABORTED { // Return error compatible to net.Listener.Accept() in case the // listener was closed. return nil, ErrClosed } if err != nil { return nil, err } return &PipeConn{handle: handle, addr: l.addr}, nil }
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// AcceptPipe accepts the next incoming call and returns the new connection. // It might return an error if a client connected and immediately cancelled // the connection.
[ "AcceptPipe", "accepts", "the", "next", "incoming", "call", "and", "returns", "the", "new", "connection", ".", "It", "might", "return", "an", "error", "if", "a", "client", "connected", "and", "immediately", "cancelled", "the", "connection", "." ]
c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6
https://github.com/natefinch/npipe/blob/c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6/npipe_windows.go#L277-L338
2,253
natefinch/npipe
npipe_windows.go
Close
func (l *PipeListener) Close() error { l.mu.Lock() defer l.mu.Unlock() if l.closed { return nil } l.closed = true if l.handle != 0 { err := disconnectNamedPipe(l.handle) if err != nil { return err } err = syscall.CloseHandle(l.handle) if err != nil { return err } l.handle = 0 } if l.acceptOverlapped != nil && l.acceptHandle != 0 { // Cancel the pending IO. This call does not block, so it is safe // to hold onto the mutex above. if err := cancelIoEx(l.acceptHandle, l.acceptOverlapped); err != nil { return err } err := syscall.CloseHandle(l.acceptOverlapped.HEvent) if err != nil { return err } l.acceptOverlapped.HEvent = 0 err = syscall.CloseHandle(l.acceptHandle) if err != nil { return err } l.acceptHandle = 0 } return nil }
go
func (l *PipeListener) Close() error { l.mu.Lock() defer l.mu.Unlock() if l.closed { return nil } l.closed = true if l.handle != 0 { err := disconnectNamedPipe(l.handle) if err != nil { return err } err = syscall.CloseHandle(l.handle) if err != nil { return err } l.handle = 0 } if l.acceptOverlapped != nil && l.acceptHandle != 0 { // Cancel the pending IO. This call does not block, so it is safe // to hold onto the mutex above. if err := cancelIoEx(l.acceptHandle, l.acceptOverlapped); err != nil { return err } err := syscall.CloseHandle(l.acceptOverlapped.HEvent) if err != nil { return err } l.acceptOverlapped.HEvent = 0 err = syscall.CloseHandle(l.acceptHandle) if err != nil { return err } l.acceptHandle = 0 } return nil }
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// Close stops listening on the address. // Already Accepted connections are not closed.
[ "Close", "stops", "listening", "on", "the", "address", ".", "Already", "Accepted", "connections", "are", "not", "closed", "." ]
c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6
https://github.com/natefinch/npipe/blob/c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6/npipe_windows.go#L342-L379
2,254
natefinch/npipe
npipe_windows.go
completeRequest
func (c *PipeConn) completeRequest(data iodata, deadline *time.Time, overlapped *syscall.Overlapped) (int, error) { if data.err == error_io_incomplete || data.err == syscall.ERROR_IO_PENDING { var timer <-chan time.Time if deadline != nil { if timeDiff := deadline.Sub(time.Now()); timeDiff > 0 { timer = time.After(timeDiff) } } done := make(chan iodata) go func() { n, err := waitForCompletion(c.handle, overlapped) done <- iodata{n, err} }() select { case data = <-done: case <-timer: syscall.CancelIoEx(c.handle, overlapped) data = iodata{0, timeout(c.addr.String())} } } // Windows will produce ERROR_BROKEN_PIPE upon closing // a handle on the other end of a connection. Go RPC // expects an io.EOF error in this case. if data.err == syscall.ERROR_BROKEN_PIPE { data.err = io.EOF } return int(data.n), data.err }
go
func (c *PipeConn) completeRequest(data iodata, deadline *time.Time, overlapped *syscall.Overlapped) (int, error) { if data.err == error_io_incomplete || data.err == syscall.ERROR_IO_PENDING { var timer <-chan time.Time if deadline != nil { if timeDiff := deadline.Sub(time.Now()); timeDiff > 0 { timer = time.After(timeDiff) } } done := make(chan iodata) go func() { n, err := waitForCompletion(c.handle, overlapped) done <- iodata{n, err} }() select { case data = <-done: case <-timer: syscall.CancelIoEx(c.handle, overlapped) data = iodata{0, timeout(c.addr.String())} } } // Windows will produce ERROR_BROKEN_PIPE upon closing // a handle on the other end of a connection. Go RPC // expects an io.EOF error in this case. if data.err == syscall.ERROR_BROKEN_PIPE { data.err = io.EOF } return int(data.n), data.err }
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// completeRequest looks at iodata to see if a request is pending. If so, it waits for it to either complete or to // abort due to hitting the specified deadline. Deadline may be set to nil to wait forever. If no request is pending, // the content of iodata is returned.
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c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6
https://github.com/natefinch/npipe/blob/c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6/npipe_windows.go#L402-L429
2,255
natefinch/npipe
npipe_windows.go
createPipe
func createPipe(address string, first bool) (syscall.Handle, error) { n, err := syscall.UTF16PtrFromString(address) if err != nil { return 0, err } mode := uint32(pipe_access_duplex | syscall.FILE_FLAG_OVERLAPPED) if first { mode |= file_flag_first_pipe_instance } return createNamedPipe(n, mode, pipe_type_byte, pipe_unlimited_instances, 512, 512, 0, nil) }
go
func createPipe(address string, first bool) (syscall.Handle, error) { n, err := syscall.UTF16PtrFromString(address) if err != nil { return 0, err } mode := uint32(pipe_access_duplex | syscall.FILE_FLAG_OVERLAPPED) if first { mode |= file_flag_first_pipe_instance } return createNamedPipe(n, mode, pipe_type_byte, pipe_unlimited_instances, 512, 512, 0, nil) }
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// createPipe is a helper function to make sure we always create pipes // with the same arguments, since subsequent calls to create pipe need // to use the same arguments as the first one. If first is set, fail // if the pipe already exists.
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c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6
https://github.com/natefinch/npipe/blob/c1b8fa8bdccecb0b8db834ee0b92fdbcfa606dd6/npipe_windows.go#L510-L524
2,256
alecthomas/repr
repr.go
Hide
func Hide(ts ...interface{}) Option { return func(o *Printer) { for _, t := range ts { rt := reflect.Indirect(reflect.ValueOf(t)).Type() o.exclude[rt] = true } } }
go
func Hide(ts ...interface{}) Option { return func(o *Printer) { for _, t := range ts { rt := reflect.Indirect(reflect.ValueOf(t)).Type() o.exclude[rt] = true } } }
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// Hide excludes the given types from representation, instead just printing the name of the type.
[ "Hide", "excludes", "the", "given", "types", "from", "representation", "instead", "just", "printing", "the", "name", "of", "the", "type", "." ]
d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7
https://github.com/alecthomas/repr/blob/d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7/repr.go#L68-L75
2,257
alecthomas/repr
repr.go
New
func New(w io.Writer, options ...Option) *Printer { p := &Printer{ w: w, indent: " ", omitEmpty: true, exclude: map[reflect.Type]bool{}, } for _, option := range options { option(p) } return p }
go
func New(w io.Writer, options ...Option) *Printer { p := &Printer{ w: w, indent: " ", omitEmpty: true, exclude: map[reflect.Type]bool{}, } for _, option := range options { option(p) } return p }
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// New creates a new Printer on w with the given Options.
[ "New", "creates", "a", "new", "Printer", "on", "w", "with", "the", "given", "Options", "." ]
d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7
https://github.com/alecthomas/repr/blob/d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7/repr.go#L91-L102
2,258
alecthomas/repr
repr.go
Print
func (p *Printer) Print(vs ...interface{}) { for i, v := range vs { if i > 0 { fmt.Fprint(p.w, " ") } p.reprValue(map[reflect.Value]bool{}, reflect.ValueOf(v), "") } }
go
func (p *Printer) Print(vs ...interface{}) { for i, v := range vs { if i > 0 { fmt.Fprint(p.w, " ") } p.reprValue(map[reflect.Value]bool{}, reflect.ValueOf(v), "") } }
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// Print the values.
[ "Print", "the", "values", "." ]
d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7
https://github.com/alecthomas/repr/blob/d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7/repr.go#L119-L126
2,259
alecthomas/repr
repr.go
String
func String(v interface{}, options ...Option) string { w := bytes.NewBuffer(nil) options = append([]Option{NoIndent()}, options...) p := New(w, options...) p.Print(v) return w.String() }
go
func String(v interface{}, options ...Option) string { w := bytes.NewBuffer(nil) options = append([]Option{NoIndent()}, options...) p := New(w, options...) p.Print(v) return w.String() }
[ "func", "String", "(", "v", "interface", "{", "}", ",", "options", "...", "Option", ")", "string", "{", "w", ":=", "bytes", ".", "NewBuffer", "(", "nil", ")", "\n", "options", "=", "append", "(", "[", "]", "Option", "{", "NoIndent", "(", ")", "}", ...
// String returns a string representing v.
[ "String", "returns", "a", "string", "representing", "v", "." ]
d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7
https://github.com/alecthomas/repr/blob/d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7/repr.go#L278-L284
2,260
alecthomas/repr
repr.go
Println
func Println(vs ...interface{}) { args, options := extractOptions(vs...) New(os.Stdout, options...).Println(args...) }
go
func Println(vs ...interface{}) { args, options := extractOptions(vs...) New(os.Stdout, options...).Println(args...) }
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// Println prints v to os.Stdout, one per line.
[ "Println", "prints", "v", "to", "os", ".", "Stdout", "one", "per", "line", "." ]
d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7
https://github.com/alecthomas/repr/blob/d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7/repr.go#L298-L301
2,261
alecthomas/repr
repr.go
Print
func Print(vs ...interface{}) { args, options := extractOptions(vs...) New(os.Stdout, options...).Print(args...) }
go
func Print(vs ...interface{}) { args, options := extractOptions(vs...) New(os.Stdout, options...).Print(args...) }
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// Print writes a representation of v to os.Stdout, separated by spaces.
[ "Print", "writes", "a", "representation", "of", "v", "to", "os", ".", "Stdout", "separated", "by", "spaces", "." ]
d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7
https://github.com/alecthomas/repr/blob/d37bc2a10ba1a7951e19dd5dc10f7d59b142d8d7/repr.go#L304-L307
2,262
MarinX/keylogger
keylogger.go
New
func New(devPath string) (*KeyLogger, error) { k := &KeyLogger{} if !k.IsRoot() { return nil, errors.New("Must be run as root") } fd, err := os.Open(devPath) k.fd = fd return k, err }
go
func New(devPath string) (*KeyLogger, error) { k := &KeyLogger{} if !k.IsRoot() { return nil, errors.New("Must be run as root") } fd, err := os.Open(devPath) k.fd = fd return k, err }
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// New creates a new keylogger for a device path
[ "New", "creates", "a", "new", "keylogger", "for", "a", "device", "path" ]
bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e
https://github.com/MarinX/keylogger/blob/bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e/keylogger.go#L22-L30
2,263
MarinX/keylogger
keylogger.go
FindKeyboardDevice
func FindKeyboardDevice() string { path := "/sys/class/input/event%d/device/name" resolved := "/dev/input/event%d" for i := 0; i < 255; i++ { buff, err := ioutil.ReadFile(fmt.Sprintf(path, i)) if err != nil { logrus.Error(err) } if strings.Contains(strings.ToLower(string(buff)), "keyboard") { return fmt.Sprintf(resolved, i) } } return "" }
go
func FindKeyboardDevice() string { path := "/sys/class/input/event%d/device/name" resolved := "/dev/input/event%d" for i := 0; i < 255; i++ { buff, err := ioutil.ReadFile(fmt.Sprintf(path, i)) if err != nil { logrus.Error(err) } if strings.Contains(strings.ToLower(string(buff)), "keyboard") { return fmt.Sprintf(resolved, i) } } return "" }
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// FindKeyboardDevice by going through each device registered on OS // Mostly it will contain keyword - keyboard // Returns the file path which contains events
[ "FindKeyboardDevice", "by", "going", "through", "each", "device", "registered", "on", "OS", "Mostly", "it", "will", "contain", "keyword", "-", "keyboard", "Returns", "the", "file", "path", "which", "contains", "events" ]
bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e
https://github.com/MarinX/keylogger/blob/bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e/keylogger.go#L35-L49
2,264
MarinX/keylogger
keylogger.go
Read
func (k *KeyLogger) Read() chan InputEvent { event := make(chan InputEvent) go func(event chan InputEvent) { for { e, err := k.read() if err != nil { logrus.Error(err) close(event) break } if e != nil { event <- *e } } }(event) return event }
go
func (k *KeyLogger) Read() chan InputEvent { event := make(chan InputEvent) go func(event chan InputEvent) { for { e, err := k.read() if err != nil { logrus.Error(err) close(event) break } if e != nil { event <- *e } } }(event) return event }
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// Read from file descriptor // Blocking call, returns channel // Make sure to close channel when finish
[ "Read", "from", "file", "descriptor", "Blocking", "call", "returns", "channel", "Make", "sure", "to", "close", "channel", "when", "finish" ]
bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e
https://github.com/MarinX/keylogger/blob/bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e/keylogger.go#L59-L76
2,265
MarinX/keylogger
keylogger.go
read
func (k *KeyLogger) read() (*InputEvent, error) { buffer := make([]byte, eventsize) n, err := k.fd.Read(buffer) if err != nil { return nil, err } // no input, dont send error if n <= 0 { return nil, nil } return k.eventFromBuffer(buffer) }
go
func (k *KeyLogger) read() (*InputEvent, error) { buffer := make([]byte, eventsize) n, err := k.fd.Read(buffer) if err != nil { return nil, err } // no input, dont send error if n <= 0 { return nil, nil } return k.eventFromBuffer(buffer) }
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// read from file description and parse binary into go struct
[ "read", "from", "file", "description", "and", "parse", "binary", "into", "go", "struct" ]
bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e
https://github.com/MarinX/keylogger/blob/bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e/keylogger.go#L79-L90
2,266
MarinX/keylogger
keylogger.go
eventFromBuffer
func (k *KeyLogger) eventFromBuffer(buffer []byte) (*InputEvent, error) { event := &InputEvent{} err := binary.Read(bytes.NewBuffer(buffer), binary.LittleEndian, event) return event, err }
go
func (k *KeyLogger) eventFromBuffer(buffer []byte) (*InputEvent, error) { event := &InputEvent{} err := binary.Read(bytes.NewBuffer(buffer), binary.LittleEndian, event) return event, err }
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// eventFromBuffer parser bytes into InputEvent struct
[ "eventFromBuffer", "parser", "bytes", "into", "InputEvent", "struct" ]
bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e
https://github.com/MarinX/keylogger/blob/bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e/keylogger.go#L93-L97
2,267
MarinX/keylogger
keylogger.go
Close
func (k *KeyLogger) Close() error { if k.fd == nil { return nil } return k.fd.Close() }
go
func (k *KeyLogger) Close() error { if k.fd == nil { return nil } return k.fd.Close() }
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// Close file descriptor
[ "Close", "file", "descriptor" ]
bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e
https://github.com/MarinX/keylogger/blob/bf368a5eb23f3fa9da2311cb6812ce0a2be9c53e/keylogger.go#L100-L105
2,268
russross/meddler
meddler.go
Register
func Register(name string, m Meddler) { if name == "pk" { panic("meddler.Register: pk cannot be used as a meddler name") } registry[name] = m }
go
func Register(name string, m Meddler) { if name == "pk" { panic("meddler.Register: pk cannot be used as a meddler name") } registry[name] = m }
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// Register sets up a meddler type. Meddlers get a chance to meddle with the // data being loaded or saved when a field is annotated with the name of the meddler. // The registry is global.
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87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L35-L40
2,269
russross/meddler
meddler.go
PreRead
func (elt TimeMeddler) PreRead(fieldAddr interface{}) (scanTarget interface{}, err error) { switch tgt := fieldAddr.(type) { case *time.Time: if elt.ZeroIsNull { return &tgt, nil } return fieldAddr, nil case **time.Time: if elt.ZeroIsNull { return nil, fmt.Errorf("meddler.TimeMeddler cannot be used on a *time.Time field, only time.Time") } return fieldAddr, nil default: return nil, fmt.Errorf("meddler.TimeMeddler.PreRead: unknown struct field type: %T", fieldAddr) } }
go
func (elt TimeMeddler) PreRead(fieldAddr interface{}) (scanTarget interface{}, err error) { switch tgt := fieldAddr.(type) { case *time.Time: if elt.ZeroIsNull { return &tgt, nil } return fieldAddr, nil case **time.Time: if elt.ZeroIsNull { return nil, fmt.Errorf("meddler.TimeMeddler cannot be used on a *time.Time field, only time.Time") } return fieldAddr, nil default: return nil, fmt.Errorf("meddler.TimeMeddler.PreRead: unknown struct field type: %T", fieldAddr) } }
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// PreRead is called before a Scan operation for fields that have a TimeMeddler
[ "PreRead", "is", "called", "before", "a", "Scan", "operation", "for", "fields", "that", "have", "a", "TimeMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L84-L99
2,270
russross/meddler
meddler.go
PostRead
func (elt TimeMeddler) PostRead(fieldAddr, scanTarget interface{}) error { switch tgt := fieldAddr.(type) { case *time.Time: if elt.ZeroIsNull { src := scanTarget.(**time.Time) if *src == nil { *tgt = time.Time{} } else if elt.Local { *tgt = (*src).Local() } else { *tgt = (*src).UTC() } return nil } src := scanTarget.(*time.Time) if elt.Local { *tgt = src.Local() } else { *tgt = src.UTC() } return nil case **time.Time: if elt.ZeroIsNull { return fmt.Errorf("meddler TimeMeddler cannot be used on a *time.Time field, only time.Time") } src := scanTarget.(**time.Time) if *src == nil { *tgt = nil } else if elt.Local { **src = (*src).Local() *tgt = *src } else { **src = (*src).UTC() *tgt = *src } return nil default: return fmt.Errorf("meddler.TimeMeddler.PostRead: unknown struct field type: %T", fieldAddr) } }
go
func (elt TimeMeddler) PostRead(fieldAddr, scanTarget interface{}) error { switch tgt := fieldAddr.(type) { case *time.Time: if elt.ZeroIsNull { src := scanTarget.(**time.Time) if *src == nil { *tgt = time.Time{} } else if elt.Local { *tgt = (*src).Local() } else { *tgt = (*src).UTC() } return nil } src := scanTarget.(*time.Time) if elt.Local { *tgt = src.Local() } else { *tgt = src.UTC() } return nil case **time.Time: if elt.ZeroIsNull { return fmt.Errorf("meddler TimeMeddler cannot be used on a *time.Time field, only time.Time") } src := scanTarget.(**time.Time) if *src == nil { *tgt = nil } else if elt.Local { **src = (*src).Local() *tgt = *src } else { **src = (*src).UTC() *tgt = *src } return nil default: return fmt.Errorf("meddler.TimeMeddler.PostRead: unknown struct field type: %T", fieldAddr) } }
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// PostRead is called after a Scan operation for fields that have a TimeMeddler
[ "PostRead", "is", "called", "after", "a", "Scan", "operation", "for", "fields", "that", "have", "a", "TimeMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L102-L146
2,271
russross/meddler
meddler.go
PreWrite
func (elt TimeMeddler) PreWrite(field interface{}) (saveValue interface{}, err error) { switch tgt := field.(type) { case time.Time: if elt.ZeroIsNull && tgt.IsZero() { return nil, nil } return tgt.UTC(), nil case *time.Time: if tgt == nil || elt.ZeroIsNull && tgt.IsZero() { return nil, nil } return tgt.UTC(), nil default: return nil, fmt.Errorf("meddler.TimeMeddler.PreWrite: unknown struct field type: %T", field) } }
go
func (elt TimeMeddler) PreWrite(field interface{}) (saveValue interface{}, err error) { switch tgt := field.(type) { case time.Time: if elt.ZeroIsNull && tgt.IsZero() { return nil, nil } return tgt.UTC(), nil case *time.Time: if tgt == nil || elt.ZeroIsNull && tgt.IsZero() { return nil, nil } return tgt.UTC(), nil default: return nil, fmt.Errorf("meddler.TimeMeddler.PreWrite: unknown struct field type: %T", field) } }
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// PreWrite is called before an Insert or Update operation for fields that have a TimeMeddler
[ "PreWrite", "is", "called", "before", "an", "Insert", "or", "Update", "operation", "for", "fields", "that", "have", "a", "TimeMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L149-L166
2,272
russross/meddler
meddler.go
PreRead
func (elt ZeroIsNullMeddler) PreRead(fieldAddr interface{}) (scanTarget interface{}, err error) { // create a pointer to this element // the database driver will set it to nil if the column value is null return reflect.New(reflect.TypeOf(fieldAddr)).Interface(), nil }
go
func (elt ZeroIsNullMeddler) PreRead(fieldAddr interface{}) (scanTarget interface{}, err error) { // create a pointer to this element // the database driver will set it to nil if the column value is null return reflect.New(reflect.TypeOf(fieldAddr)).Interface(), nil }
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// PreRead is called before a Scan operation for fields that have the ZeroIsNullMeddler
[ "PreRead", "is", "called", "before", "a", "Scan", "operation", "for", "fields", "that", "have", "the", "ZeroIsNullMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L173-L177
2,273
russross/meddler
meddler.go
PostRead
func (elt ZeroIsNullMeddler) PostRead(fieldAddr, scanTarget interface{}) error { sv := reflect.ValueOf(scanTarget) fv := reflect.ValueOf(fieldAddr) if sv.Elem().IsNil() { // null column, so set target to be zero value fv.Elem().Set(reflect.Zero(fv.Elem().Type())) } else { // copy the value that scan found fv.Elem().Set(sv.Elem().Elem()) } return nil }
go
func (elt ZeroIsNullMeddler) PostRead(fieldAddr, scanTarget interface{}) error { sv := reflect.ValueOf(scanTarget) fv := reflect.ValueOf(fieldAddr) if sv.Elem().IsNil() { // null column, so set target to be zero value fv.Elem().Set(reflect.Zero(fv.Elem().Type())) } else { // copy the value that scan found fv.Elem().Set(sv.Elem().Elem()) } return nil }
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// PostRead is called after a Scan operation for fields that have the ZeroIsNullMeddler
[ "PostRead", "is", "called", "after", "a", "Scan", "operation", "for", "fields", "that", "have", "the", "ZeroIsNullMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L180-L191
2,274
russross/meddler
meddler.go
PreWrite
func (elt ZeroIsNullMeddler) PreWrite(field interface{}) (saveValue interface{}, err error) { val := reflect.ValueOf(field) switch val.Kind() { case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: if val.Int() == 0 { return nil, nil } case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: if val.Uint() == 0 { return nil, nil } case reflect.Float32, reflect.Float64: if val.Float() == 0 { return nil, nil } case reflect.Complex64, reflect.Complex128: if val.Complex() == 0 { return nil, nil } case reflect.String: if val.String() == "" { return nil, nil } case reflect.Bool: if !val.Bool() { return nil, nil } default: return nil, fmt.Errorf("ZeroIsNullMeddler.PreWrite: unknown struct field type: %T", field) } return field, nil }
go
func (elt ZeroIsNullMeddler) PreWrite(field interface{}) (saveValue interface{}, err error) { val := reflect.ValueOf(field) switch val.Kind() { case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: if val.Int() == 0 { return nil, nil } case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: if val.Uint() == 0 { return nil, nil } case reflect.Float32, reflect.Float64: if val.Float() == 0 { return nil, nil } case reflect.Complex64, reflect.Complex128: if val.Complex() == 0 { return nil, nil } case reflect.String: if val.String() == "" { return nil, nil } case reflect.Bool: if !val.Bool() { return nil, nil } default: return nil, fmt.Errorf("ZeroIsNullMeddler.PreWrite: unknown struct field type: %T", field) } return field, nil }
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// PreWrite is called before an Insert or Update operation for fields that have the ZeroIsNullMeddler
[ "PreWrite", "is", "called", "before", "an", "Insert", "or", "Update", "operation", "for", "fields", "that", "have", "the", "ZeroIsNullMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L194-L226
2,275
russross/meddler
meddler.go
PostRead
func (zip JSONMeddler) PostRead(fieldAddr, scanTarget interface{}) error { ptr := scanTarget.(*[]byte) if ptr == nil { return fmt.Errorf("JSONMeddler.PostRead: nil pointer") } raw := *ptr if zip { // un-gzip and decode json gzipReader, err := gzip.NewReader(bytes.NewReader(raw)) if err != nil { return fmt.Errorf("Error creating gzip Reader: %v", err) } defer gzipReader.Close() jsonDecoder := json.NewDecoder(gzipReader) if err := jsonDecoder.Decode(fieldAddr); err != nil { return fmt.Errorf("JSON decoder/gzip error: %v", err) } if err := gzipReader.Close(); err != nil { return fmt.Errorf("Closing gzip reader: %v", err) } return nil } // decode json jsonDecoder := json.NewDecoder(bytes.NewReader(raw)) if err := jsonDecoder.Decode(fieldAddr); err != nil { return fmt.Errorf("JSON decode error: %v", err) } return nil }
go
func (zip JSONMeddler) PostRead(fieldAddr, scanTarget interface{}) error { ptr := scanTarget.(*[]byte) if ptr == nil { return fmt.Errorf("JSONMeddler.PostRead: nil pointer") } raw := *ptr if zip { // un-gzip and decode json gzipReader, err := gzip.NewReader(bytes.NewReader(raw)) if err != nil { return fmt.Errorf("Error creating gzip Reader: %v", err) } defer gzipReader.Close() jsonDecoder := json.NewDecoder(gzipReader) if err := jsonDecoder.Decode(fieldAddr); err != nil { return fmt.Errorf("JSON decoder/gzip error: %v", err) } if err := gzipReader.Close(); err != nil { return fmt.Errorf("Closing gzip reader: %v", err) } return nil } // decode json jsonDecoder := json.NewDecoder(bytes.NewReader(raw)) if err := jsonDecoder.Decode(fieldAddr); err != nil { return fmt.Errorf("JSON decode error: %v", err) } return nil }
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// PostRead is called after a Scan operation for fields that have the JSONMeddler
[ "PostRead", "is", "called", "after", "a", "Scan", "operation", "for", "fields", "that", "have", "the", "JSONMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L238-L270
2,276
russross/meddler
meddler.go
PreWrite
func (zip JSONMeddler) PreWrite(field interface{}) (saveValue interface{}, err error) { buffer := new(bytes.Buffer) if zip { // json encode and gzip gzipWriter := gzip.NewWriter(buffer) defer gzipWriter.Close() jsonEncoder := json.NewEncoder(gzipWriter) if err := jsonEncoder.Encode(field); err != nil { return nil, fmt.Errorf("JSON encoding/gzip error: %v", err) } if err := gzipWriter.Close(); err != nil { return nil, fmt.Errorf("Closing gzip writer: %v", err) } return buffer.Bytes(), nil } // json encode jsonEncoder := json.NewEncoder(buffer) if err := jsonEncoder.Encode(field); err != nil { return nil, fmt.Errorf("JSON encoding error: %v", err) } return buffer.Bytes(), nil }
go
func (zip JSONMeddler) PreWrite(field interface{}) (saveValue interface{}, err error) { buffer := new(bytes.Buffer) if zip { // json encode and gzip gzipWriter := gzip.NewWriter(buffer) defer gzipWriter.Close() jsonEncoder := json.NewEncoder(gzipWriter) if err := jsonEncoder.Encode(field); err != nil { return nil, fmt.Errorf("JSON encoding/gzip error: %v", err) } if err := gzipWriter.Close(); err != nil { return nil, fmt.Errorf("Closing gzip writer: %v", err) } return buffer.Bytes(), nil } // json encode jsonEncoder := json.NewEncoder(buffer) if err := jsonEncoder.Encode(field); err != nil { return nil, fmt.Errorf("JSON encoding error: %v", err) } return buffer.Bytes(), nil }
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// PreWrite is called before an Insert or Update operation for fields that have the JSONMeddler
[ "PreWrite", "is", "called", "before", "an", "Insert", "or", "Update", "operation", "for", "fields", "that", "have", "the", "JSONMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L273-L297
2,277
russross/meddler
meddler.go
PreRead
func (zip GobMeddler) PreRead(fieldAddr interface{}) (scanTarget interface{}, err error) { // give a pointer to a byte buffer to grab the raw data return new([]byte), nil }
go
func (zip GobMeddler) PreRead(fieldAddr interface{}) (scanTarget interface{}, err error) { // give a pointer to a byte buffer to grab the raw data return new([]byte), nil }
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// PreRead is called before a Scan operation for fields that have the GobMeddler
[ "PreRead", "is", "called", "before", "a", "Scan", "operation", "for", "fields", "that", "have", "the", "GobMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L303-L306
2,278
russross/meddler
meddler.go
PostRead
func (zip GobMeddler) PostRead(fieldAddr, scanTarget interface{}) error { ptr := scanTarget.(*[]byte) if ptr == nil { return fmt.Errorf("GobMeddler.PostRead: nil pointer") } raw := *ptr if zip { // un-gzip and decode gob gzipReader, err := gzip.NewReader(bytes.NewReader(raw)) if err != nil { return fmt.Errorf("Error creating gzip Reader: %v", err) } defer gzipReader.Close() gobDecoder := gob.NewDecoder(gzipReader) if err := gobDecoder.Decode(fieldAddr); err != nil { return fmt.Errorf("Gob decoder/gzip error: %v", err) } if err := gzipReader.Close(); err != nil { return fmt.Errorf("Closing gzip reader: %v", err) } return nil } // decode gob gobDecoder := gob.NewDecoder(bytes.NewReader(raw)) if err := gobDecoder.Decode(fieldAddr); err != nil { return fmt.Errorf("Gob decode error: %v", err) } return nil }
go
func (zip GobMeddler) PostRead(fieldAddr, scanTarget interface{}) error { ptr := scanTarget.(*[]byte) if ptr == nil { return fmt.Errorf("GobMeddler.PostRead: nil pointer") } raw := *ptr if zip { // un-gzip and decode gob gzipReader, err := gzip.NewReader(bytes.NewReader(raw)) if err != nil { return fmt.Errorf("Error creating gzip Reader: %v", err) } defer gzipReader.Close() gobDecoder := gob.NewDecoder(gzipReader) if err := gobDecoder.Decode(fieldAddr); err != nil { return fmt.Errorf("Gob decoder/gzip error: %v", err) } if err := gzipReader.Close(); err != nil { return fmt.Errorf("Closing gzip reader: %v", err) } return nil } // decode gob gobDecoder := gob.NewDecoder(bytes.NewReader(raw)) if err := gobDecoder.Decode(fieldAddr); err != nil { return fmt.Errorf("Gob decode error: %v", err) } return nil }
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// PostRead is called after a Scan operation for fields that have the GobMeddler
[ "PostRead", "is", "called", "after", "a", "Scan", "operation", "for", "fields", "that", "have", "the", "GobMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L309-L341
2,279
russross/meddler
meddler.go
PreWrite
func (zip GobMeddler) PreWrite(field interface{}) (saveValue interface{}, err error) { buffer := new(bytes.Buffer) if zip { // gob encode and gzip gzipWriter := gzip.NewWriter(buffer) defer gzipWriter.Close() gobEncoder := gob.NewEncoder(gzipWriter) if err := gobEncoder.Encode(field); err != nil { return nil, fmt.Errorf("Gob encoding/gzip error: %v", err) } if err := gzipWriter.Close(); err != nil { return nil, fmt.Errorf("Closing gzip writer: %v", err) } return buffer.Bytes(), nil } // gob encode gobEncoder := gob.NewEncoder(buffer) if err := gobEncoder.Encode(field); err != nil { return nil, fmt.Errorf("Gob encoding error: %v", err) } return buffer.Bytes(), nil }
go
func (zip GobMeddler) PreWrite(field interface{}) (saveValue interface{}, err error) { buffer := new(bytes.Buffer) if zip { // gob encode and gzip gzipWriter := gzip.NewWriter(buffer) defer gzipWriter.Close() gobEncoder := gob.NewEncoder(gzipWriter) if err := gobEncoder.Encode(field); err != nil { return nil, fmt.Errorf("Gob encoding/gzip error: %v", err) } if err := gzipWriter.Close(); err != nil { return nil, fmt.Errorf("Closing gzip writer: %v", err) } return buffer.Bytes(), nil } // gob encode gobEncoder := gob.NewEncoder(buffer) if err := gobEncoder.Encode(field); err != nil { return nil, fmt.Errorf("Gob encoding error: %v", err) } return buffer.Bytes(), nil }
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// PreWrite is called before an Insert or Update operation for fields that have the GobMeddler
[ "PreWrite", "is", "called", "before", "an", "Insert", "or", "Update", "operation", "for", "fields", "that", "have", "the", "GobMeddler" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/meddler.go#L344-L368
2,280
russross/meddler
loadsave.go
DriverErr
func DriverErr(err error) (error, bool) { if dbe, ok := err.(*dbErr); ok { return dbe.err, true } return err, false }
go
func DriverErr(err error) (error, bool) { if dbe, ok := err.(*dbErr); ok { return dbe.err, true } return err, false }
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// DriverErr returns the original error as returned by the database driver // if the error comes from the driver, with the second value set to true. // Otherwise, it returns err itself with false as second value.
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87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L21-L26
2,281
russross/meddler
loadsave.go
Load
func (d *Database) Load(db DB, table string, dst interface{}, pk int64) error { columns, err := d.ColumnsQuoted(dst, true) if err != nil { return err } // make sure we have a primary key field pkName, _, err := d.PrimaryKey(dst) if err != nil { return err } if pkName == "" { return fmt.Errorf("meddler.Load: no primary key field found") } // run the query q := fmt.Sprintf("SELECT %s FROM %s WHERE %s = %s", columns, d.quoted(table), d.quoted(pkName), d.Placeholder) rows, err := db.Query(q, pk) if err != nil { return &dbErr{msg: "meddler.Load: DB error in Query", err: err} } // scan the row return d.ScanRow(rows, dst) }
go
func (d *Database) Load(db DB, table string, dst interface{}, pk int64) error { columns, err := d.ColumnsQuoted(dst, true) if err != nil { return err } // make sure we have a primary key field pkName, _, err := d.PrimaryKey(dst) if err != nil { return err } if pkName == "" { return fmt.Errorf("meddler.Load: no primary key field found") } // run the query q := fmt.Sprintf("SELECT %s FROM %s WHERE %s = %s", columns, d.quoted(table), d.quoted(pkName), d.Placeholder) rows, err := db.Query(q, pk) if err != nil { return &dbErr{msg: "meddler.Load: DB error in Query", err: err} } // scan the row return d.ScanRow(rows, dst) }
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// Load loads a record using a query for the primary key field. // Returns sql.ErrNoRows if not found.
[ "Load", "loads", "a", "record", "using", "a", "query", "for", "the", "primary", "key", "field", ".", "Returns", "sql", ".", "ErrNoRows", "if", "not", "found", "." ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L37-L62
2,282
russross/meddler
loadsave.go
Load
func Load(db DB, table string, dst interface{}, pk int64) error { return Default.Load(db, table, dst, pk) }
go
func Load(db DB, table string, dst interface{}, pk int64) error { return Default.Load(db, table, dst, pk) }
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// Load using the Default Database type
[ "Load", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L65-L67
2,283
russross/meddler
loadsave.go
Insert
func (d *Database) Insert(db DB, table string, src interface{}) error { pkName, pkValue, err := d.PrimaryKey(src) if err != nil { return err } if pkName != "" && pkValue != 0 { return fmt.Errorf("meddler.Insert: primary key must be zero") } // gather the query parts namesPart, err := d.ColumnsQuoted(src, false) if err != nil { return err } valuesPart, err := d.PlaceholdersString(src, false) if err != nil { return err } values, err := d.Values(src, false) if err != nil { return err } // run the query q := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", d.quoted(table), namesPart, valuesPart) if d.UseReturningToGetID && pkName != "" { q += " RETURNING " + d.quoted(pkName) var newPk int64 err := db.QueryRow(q, values...).Scan(&newPk) if err != nil { return &dbErr{msg: "meddler.Insert: DB error in QueryRow", err: err} } if err = d.SetPrimaryKey(src, newPk); err != nil { return fmt.Errorf("meddler.Insert: Error saving updated pk: %v", err) } } else if pkName != "" { result, err := db.Exec(q, values...) if err != nil { return &dbErr{msg: "meddler.Insert: DB error in Exec", err: err} } // save the new primary key newPk, err := result.LastInsertId() if err != nil { return &dbErr{msg: "meddler.Insert: DB error getting new primary key value", err: err} } if err = d.SetPrimaryKey(src, newPk); err != nil { return fmt.Errorf("meddler.Insert: Error saving updated pk: %v", err) } } else { // no primary key, so no need to lookup new value _, err := db.Exec(q, values...) if err != nil { return &dbErr{msg: "meddler.Insert: DB error in Exec", err: err} } } return nil }
go
func (d *Database) Insert(db DB, table string, src interface{}) error { pkName, pkValue, err := d.PrimaryKey(src) if err != nil { return err } if pkName != "" && pkValue != 0 { return fmt.Errorf("meddler.Insert: primary key must be zero") } // gather the query parts namesPart, err := d.ColumnsQuoted(src, false) if err != nil { return err } valuesPart, err := d.PlaceholdersString(src, false) if err != nil { return err } values, err := d.Values(src, false) if err != nil { return err } // run the query q := fmt.Sprintf("INSERT INTO %s (%s) VALUES (%s)", d.quoted(table), namesPart, valuesPart) if d.UseReturningToGetID && pkName != "" { q += " RETURNING " + d.quoted(pkName) var newPk int64 err := db.QueryRow(q, values...).Scan(&newPk) if err != nil { return &dbErr{msg: "meddler.Insert: DB error in QueryRow", err: err} } if err = d.SetPrimaryKey(src, newPk); err != nil { return fmt.Errorf("meddler.Insert: Error saving updated pk: %v", err) } } else if pkName != "" { result, err := db.Exec(q, values...) if err != nil { return &dbErr{msg: "meddler.Insert: DB error in Exec", err: err} } // save the new primary key newPk, err := result.LastInsertId() if err != nil { return &dbErr{msg: "meddler.Insert: DB error getting new primary key value", err: err} } if err = d.SetPrimaryKey(src, newPk); err != nil { return fmt.Errorf("meddler.Insert: Error saving updated pk: %v", err) } } else { // no primary key, so no need to lookup new value _, err := db.Exec(q, values...) if err != nil { return &dbErr{msg: "meddler.Insert: DB error in Exec", err: err} } } return nil }
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// Insert performs an INSERT query for the given record. // If the record has a primary key flagged, it must be zero, and it // will be set to the newly-allocated primary key value from the database // as returned by LastInsertId.
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87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L73-L131
2,284
russross/meddler
loadsave.go
Insert
func Insert(db DB, table string, src interface{}) error { return Default.Insert(db, table, src) }
go
func Insert(db DB, table string, src interface{}) error { return Default.Insert(db, table, src) }
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// Insert using the Default Database type
[ "Insert", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L134-L136
2,285
russross/meddler
loadsave.go
Update
func (d *Database) Update(db DB, table string, src interface{}) error { // gather the query parts names, err := d.Columns(src, false) if err != nil { return err } placeholders, err := d.Placeholders(src, false) if err != nil { return err } values, err := d.Values(src, false) if err != nil { return err } // form the column=placeholder pairs var pairs []string for i := 0; i < len(names) && i < len(placeholders); i++ { pair := fmt.Sprintf("%s=%s", d.quoted(names[i]), placeholders[i]) pairs = append(pairs, pair) } pkName, pkValue, err := d.PrimaryKey(src) if err != nil { return err } if pkName == "" { return fmt.Errorf("meddler.Update: no primary key field") } if pkValue < 1 { return fmt.Errorf("meddler.Update: primary key must be an integer > 0") } ph := d.placeholder(len(placeholders) + 1) // run the query q := fmt.Sprintf("UPDATE %s SET %s WHERE %s=%s", d.quoted(table), strings.Join(pairs, ","), d.quoted(pkName), ph) values = append(values, pkValue) if _, err := db.Exec(q, values...); err != nil { return &dbErr{msg: "meddler.Update: DB error in Exec", err: err} } return nil }
go
func (d *Database) Update(db DB, table string, src interface{}) error { // gather the query parts names, err := d.Columns(src, false) if err != nil { return err } placeholders, err := d.Placeholders(src, false) if err != nil { return err } values, err := d.Values(src, false) if err != nil { return err } // form the column=placeholder pairs var pairs []string for i := 0; i < len(names) && i < len(placeholders); i++ { pair := fmt.Sprintf("%s=%s", d.quoted(names[i]), placeholders[i]) pairs = append(pairs, pair) } pkName, pkValue, err := d.PrimaryKey(src) if err != nil { return err } if pkName == "" { return fmt.Errorf("meddler.Update: no primary key field") } if pkValue < 1 { return fmt.Errorf("meddler.Update: primary key must be an integer > 0") } ph := d.placeholder(len(placeholders) + 1) // run the query q := fmt.Sprintf("UPDATE %s SET %s WHERE %s=%s", d.quoted(table), strings.Join(pairs, ","), d.quoted(pkName), ph) values = append(values, pkValue) if _, err := db.Exec(q, values...); err != nil { return &dbErr{msg: "meddler.Update: DB error in Exec", err: err} } return nil }
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// Update performs and UPDATE query for the given record. // The record must have an integer primary key field that is non-zero, // and it will be used to select the database row that gets updated.
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87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L141-L186
2,286
russross/meddler
loadsave.go
Update
func Update(db DB, table string, src interface{}) error { return Default.Update(db, table, src) }
go
func Update(db DB, table string, src interface{}) error { return Default.Update(db, table, src) }
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// Update using the Default Database type
[ "Update", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L189-L191
2,287
russross/meddler
loadsave.go
Save
func (d *Database) Save(db DB, table string, src interface{}) error { pkName, pkValue, err := d.PrimaryKey(src) if err != nil { return err } if pkName != "" && pkValue != 0 { return d.Update(db, table, src) } return d.Insert(db, table, src) }
go
func (d *Database) Save(db DB, table string, src interface{}) error { pkName, pkValue, err := d.PrimaryKey(src) if err != nil { return err } if pkName != "" && pkValue != 0 { return d.Update(db, table, src) } return d.Insert(db, table, src) }
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// Save performs an INSERT or an UPDATE, depending on whether or not // a primary keys exists and is non-zero.
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87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L195-L205
2,288
russross/meddler
loadsave.go
Save
func Save(db DB, table string, src interface{}) error { return Default.Save(db, table, src) }
go
func Save(db DB, table string, src interface{}) error { return Default.Save(db, table, src) }
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// Save using the Default Database type
[ "Save", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L208-L210
2,289
russross/meddler
loadsave.go
QueryRow
func (d *Database) QueryRow(db DB, dst interface{}, query string, args ...interface{}) error { // perform the query rows, err := db.Query(query, args...) if err != nil { return err } // gather the result return d.ScanRow(rows, dst) }
go
func (d *Database) QueryRow(db DB, dst interface{}, query string, args ...interface{}) error { // perform the query rows, err := db.Query(query, args...) if err != nil { return err } // gather the result return d.ScanRow(rows, dst) }
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// QueryRow performs the given query with the given arguments, scanning a // single row of results into dst. Returns sql.ErrNoRows if there was no // result row.
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87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L215-L224
2,290
russross/meddler
loadsave.go
QueryAll
func (d *Database) QueryAll(db DB, dst interface{}, query string, args ...interface{}) error { // perform the query rows, err := db.Query(query, args...) if err != nil { return err } // gather the results return d.ScanAll(rows, dst) }
go
func (d *Database) QueryAll(db DB, dst interface{}, query string, args ...interface{}) error { // perform the query rows, err := db.Query(query, args...) if err != nil { return err } // gather the results return d.ScanAll(rows, dst) }
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// QueryAll performs the given query with the given arguments, scanning // all results rows into dst.
[ "QueryAll", "performs", "the", "given", "query", "with", "the", "given", "arguments", "scanning", "all", "results", "rows", "into", "dst", "." ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L233-L242
2,291
russross/meddler
loadsave.go
QueryAll
func QueryAll(db DB, dst interface{}, query string, args ...interface{}) error { return Default.QueryAll(db, dst, query, args...) }
go
func QueryAll(db DB, dst interface{}, query string, args ...interface{}) error { return Default.QueryAll(db, dst, query, args...) }
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// QueryAll using the Default Database type
[ "QueryAll", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/loadsave.go#L245-L247
2,292
russross/meddler
scan.go
Columns
func (d *Database) Columns(src interface{}, includePk bool) ([]string, error) { data, err := getFields(reflect.TypeOf(src)) if err != nil { return nil, err } var names []string for _, elt := range data.columns { if !includePk && elt == data.pk { continue } names = append(names, elt) } return names, nil }
go
func (d *Database) Columns(src interface{}, includePk bool) ([]string, error) { data, err := getFields(reflect.TypeOf(src)) if err != nil { return nil, err } var names []string for _, elt := range data.columns { if !includePk && elt == data.pk { continue } names = append(names, elt) } return names, nil }
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// Columns returns a list of column names for its input struct.
[ "Columns", "returns", "a", "list", "of", "column", "names", "for", "its", "input", "struct", "." ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/scan.go#L170-L185
2,293
russross/meddler
scan.go
Columns
func Columns(src interface{}, includePk bool) ([]string, error) { return Default.Columns(src, includePk) }
go
func Columns(src interface{}, includePk bool) ([]string, error) { return Default.Columns(src, includePk) }
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// Columns using the Default Database type
[ "Columns", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/scan.go#L188-L190
2,294
russross/meddler
scan.go
ColumnsQuoted
func ColumnsQuoted(src interface{}, includePk bool) (string, error) { return Default.ColumnsQuoted(src, includePk) }
go
func ColumnsQuoted(src interface{}, includePk bool) (string, error) { return Default.ColumnsQuoted(src, includePk) }
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// ColumnsQuoted using the Default Database type
[ "ColumnsQuoted", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/scan.go#L210-L212
2,295
russross/meddler
scan.go
PrimaryKey
func (d *Database) PrimaryKey(src interface{}) (name string, pk int64, err error) { data, err := getFields(reflect.TypeOf(src)) if err != nil { return "", 0, err } if data.pk == "" { return "", 0, nil } name = data.pk field := reflect.ValueOf(src).Elem().Field(data.fields[name].index) switch field.Type().Kind() { case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: pk = field.Int() case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: pk = int64(field.Uint()) default: return "", 0, fmt.Errorf("meddler found field %s which is marked as the primary key, but is not an integer type", name) } return name, pk, nil }
go
func (d *Database) PrimaryKey(src interface{}) (name string, pk int64, err error) { data, err := getFields(reflect.TypeOf(src)) if err != nil { return "", 0, err } if data.pk == "" { return "", 0, nil } name = data.pk field := reflect.ValueOf(src).Elem().Field(data.fields[name].index) switch field.Type().Kind() { case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: pk = field.Int() case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: pk = int64(field.Uint()) default: return "", 0, fmt.Errorf("meddler found field %s which is marked as the primary key, but is not an integer type", name) } return name, pk, nil }
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// PrimaryKey returns the name and value of the primary key field. The name // is the empty string if there is not primary key field marked.
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87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/scan.go#L216-L238
2,296
russross/meddler
scan.go
PrimaryKey
func PrimaryKey(src interface{}) (name string, pk int64, err error) { return Default.PrimaryKey(src) }
go
func PrimaryKey(src interface{}) (name string, pk int64, err error) { return Default.PrimaryKey(src) }
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// PrimaryKey using the Default Database type
[ "PrimaryKey", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/scan.go#L241-L243
2,297
russross/meddler
scan.go
Placeholders
func (d *Database) Placeholders(src interface{}, includePk bool) ([]string, error) { data, err := getFields(reflect.TypeOf(src)) if err != nil { return nil, err } var placeholders []string for _, name := range data.columns { if !includePk && name == data.pk { continue } ph := d.placeholder(len(placeholders) + 1) placeholders = append(placeholders, ph) } return placeholders, nil }
go
func (d *Database) Placeholders(src interface{}, includePk bool) ([]string, error) { data, err := getFields(reflect.TypeOf(src)) if err != nil { return nil, err } var placeholders []string for _, name := range data.columns { if !includePk && name == data.pk { continue } ph := d.placeholder(len(placeholders) + 1) placeholders = append(placeholders, ph) } return placeholders, nil }
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// Placeholders returns a list of placeholders suitable for an INSERT or UPDATE query. // If includePk is false, the primary key field is omitted.
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87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/scan.go#L331-L347
2,298
russross/meddler
scan.go
Placeholders
func Placeholders(src interface{}, includePk bool) ([]string, error) { return Default.Placeholders(src, includePk) }
go
func Placeholders(src interface{}, includePk bool) ([]string, error) { return Default.Placeholders(src, includePk) }
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// Placeholders using the Default Database type
[ "Placeholders", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/scan.go#L350-L352
2,299
russross/meddler
scan.go
PlaceholdersString
func PlaceholdersString(src interface{}, includePk bool) (string, error) { return Default.PlaceholdersString(src, includePk) }
go
func PlaceholdersString(src interface{}, includePk bool) (string, error) { return Default.PlaceholdersString(src, includePk) }
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// PlaceholdersString using the Default Database type
[ "PlaceholdersString", "using", "the", "Default", "Database", "type" ]
87a225081a7cb35c4f5f8d0977a79105e5287115
https://github.com/russross/meddler/blob/87a225081a7cb35c4f5f8d0977a79105e5287115/scan.go#L367-L369