_id
stringlengths
2
7
title
stringlengths
1
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stringclasses
3 values
text
stringlengths
52
85.5k
language
stringclasses
1 value
meta_information
dict
q5800
IDs
train
func (l DocumentMetaSlice) IDs() []DocumentID { ids := make([]DocumentID, len(l)) for i, m := range l { ids[i] = m.ID } return ids }
go
{ "resource": "" }
q5801
Version
train
func (c *client) Version(ctx context.Context) (VersionInfo, error) { req, err := c.conn.NewRequest("GET", "_api/version") if err != nil { return VersionInfo{}, WithStack(err) } applyContextSettings(ctx, req) resp, err := c.conn.Do(ctx, req) if err != nil { return VersionInfo{}, WithStack(err) } if err := resp.CheckStatus(200); err != nil { return VersionInfo{}, WithStack(err) } var data VersionInfo if err := resp.ParseBody("", &data); err != nil { return VersionInfo{}, WithStack(err) } return data, nil }
go
{ "resource": "" }
q5802
asServerRole
train
func (r roleResponse) asServerRole(ctx context.Context, c *client) (ServerRole, error) { switch r.Role { case "SINGLE": switch r.Mode { case "resilient": if err := c.echo(ctx); IsNoLeader(err) { return ServerRoleSinglePassive, nil } else if err != nil { return ServerRoleUndefined, WithStack(err) } return ServerRoleSingleActive, nil default: return ServerRoleSingle, nil } case "PRIMARY": return ServerRoleDBServer, nil case "COORDINATOR": return ServerRoleCoordinator, nil case "AGENT": return ServerRoleAgent, nil case "UNDEFINED": return ServerRoleUndefined, nil default: return ServerRoleUndefined, nil } }
go
{ "resource": "" }
q5803
ServerRole
train
func (c *client) ServerRole(ctx context.Context) (ServerRole, error) { req, err := c.conn.NewRequest("GET", "_admin/server/role") if err != nil { return ServerRoleUndefined, WithStack(err) } applyContextSettings(ctx, req) resp, err := c.conn.Do(ctx, req) if err != nil { return ServerRoleUndefined, WithStack(err) } if err := resp.CheckStatus(200); err != nil { return ServerRoleUndefined, WithStack(err) } var data roleResponse if err := resp.ParseBody("", &data); err != nil { return ServerRoleUndefined, WithStack(err) } role, err := data.asServerRole(ctx, c) if err != nil { return ServerRoleUndefined, WithStack(err) } return role, nil }
go
{ "resource": "" }
q5804
ServerID
train
func (c *client) ServerID(ctx context.Context) (string, error) { req, err := c.conn.NewRequest("GET", "_admin/server/id") if err != nil { return "", WithStack(err) } applyContextSettings(ctx, req) resp, err := c.conn.Do(ctx, req) if err != nil { return "", WithStack(err) } if err := resp.CheckStatus(200); err != nil { return "", WithStack(err) } var data idResponse if err := resp.ParseBody("", &data); err != nil { return "", WithStack(err) } return data.ID, nil }
go
{ "resource": "" }
q5805
Validate
train
func (id DocumentID) Validate() error { if id == "" { return WithStack(fmt.Errorf("DocumentID is empty")) } parts := strings.Split(string(id), "/") if len(parts) != 2 { return WithStack(fmt.Errorf("Expected 'collection/key', got '%s'", string(id))) } if parts[0] == "" { return WithStack(fmt.Errorf("Collection part of '%s' is empty", string(id))) } if parts[1] == "" { return WithStack(fmt.Errorf("Key part of '%s' is empty", string(id))) } return nil }
go
{ "resource": "" }
q5806
ValidateOrEmpty
train
func (id DocumentID) ValidateOrEmpty() error { if id == "" { return nil } if err := id.Validate(); err != nil { return WithStack(err) } return nil }
go
{ "resource": "" }
q5807
Collection
train
func (id DocumentID) Collection() string { parts := strings.Split(string(id), "/") return pathUnescape(parts[0]) }
go
{ "resource": "" }
q5808
Key
train
func (id DocumentID) Key() string { parts := strings.Split(string(id), "/") if len(parts) == 2 { return pathUnescape(parts[1]) } return "" }
go
{ "resource": "" }
q5809
NewDocumentID
train
func NewDocumentID(collection, key string) DocumentID { return DocumentID(pathEscape(collection) + "/" + pathEscape(key)) }
go
{ "resource": "" }
q5810
WithRevision
train
func WithRevision(parent context.Context, revision string) context.Context { return context.WithValue(contextOrBackground(parent), keyRevision, revision) }
go
{ "resource": "" }
q5811
WithRevisions
train
func WithRevisions(parent context.Context, revisions []string) context.Context { return context.WithValue(contextOrBackground(parent), keyRevisions, revisions) }
go
{ "resource": "" }
q5812
WithReturnNew
train
func WithReturnNew(parent context.Context, result interface{}) context.Context { return context.WithValue(contextOrBackground(parent), keyReturnNew, result) }
go
{ "resource": "" }
q5813
WithReturnOld
train
func WithReturnOld(parent context.Context, result interface{}) context.Context { return context.WithValue(contextOrBackground(parent), keyReturnOld, result) }
go
{ "resource": "" }
q5814
WithEndpoint
train
func WithEndpoint(parent context.Context, endpoint string) context.Context { endpoint = util.FixupEndpointURLScheme(endpoint) return context.WithValue(contextOrBackground(parent), keyEndpoint, endpoint) }
go
{ "resource": "" }
q5815
WithAllowDirtyReads
train
func WithAllowDirtyReads(parent context.Context, wasDirtyRead *bool) context.Context { return context.WithValue(contextOrBackground(parent), keyAllowDirtyReads, wasDirtyRead) }
go
{ "resource": "" }
q5816
WithRawResponse
train
func WithRawResponse(parent context.Context, value *[]byte) context.Context { return context.WithValue(contextOrBackground(parent), keyRawResponse, value) }
go
{ "resource": "" }
q5817
WithResponse
train
func WithResponse(parent context.Context, value *Response) context.Context { return context.WithValue(contextOrBackground(parent), keyResponse, value) }
go
{ "resource": "" }
q5818
WithImportDetails
train
func WithImportDetails(parent context.Context, value *[]string) context.Context { return context.WithValue(contextOrBackground(parent), keyImportDetails, value) }
go
{ "resource": "" }
q5819
WithIgnoreRevisions
train
func WithIgnoreRevisions(parent context.Context, value ...bool) context.Context { v := true if len(value) == 1 { v = value[0] } return context.WithValue(contextOrBackground(parent), keyIgnoreRevs, v) }
go
{ "resource": "" }
q5820
WithConfigured
train
func WithConfigured(parent context.Context, value ...bool) context.Context { v := true if len(value) == 1 { v = value[0] } return context.WithValue(contextOrBackground(parent), keyConfigured, v) }
go
{ "resource": "" }
q5821
WithDBServerID
train
func WithDBServerID(parent context.Context, id string) context.Context { return context.WithValue(contextOrBackground(parent), keyDBServerID, id) }
go
{ "resource": "" }
q5822
WithBatchID
train
func WithBatchID(parent context.Context, id string) context.Context { return context.WithValue(contextOrBackground(parent), keyBatchID, id) }
go
{ "resource": "" }
q5823
WithJobIDResponse
train
func WithJobIDResponse(parent context.Context, jobID *string) context.Context { return context.WithValue(contextOrBackground(parent), keyJobIDResponse, jobID) }
go
{ "resource": "" }
q5824
loadContextResponseValues
train
func loadContextResponseValues(cs contextSettings, resp Response) { // Parse potential dirty read if cs.DirtyReadFlag != nil { if dirtyRead := resp.Header("X-Arango-Potential-Dirty-Read"); dirtyRead != "" { *cs.DirtyReadFlag = true // The documentation does not say anything about the actual value (dirtyRead == "true") } else { *cs.DirtyReadFlag = false } } }
go
{ "resource": "" }
q5825
setDirtyReadFlagIfRequired
train
func setDirtyReadFlagIfRequired(ctx context.Context, wasDirty bool) { if v := ctx.Value(keyAllowDirtyReads); v != nil { if ref, ok := v.(*bool); ok && ref != nil { *ref = wasDirty } } }
go
{ "resource": "" }
q5826
Error
train
func (e KeyNotFoundError) Error() string { return fmt.Sprintf("Key '%s' not found", strings.Join(e.Key, "/")) }
go
{ "resource": "" }
q5827
NewPool
train
func NewPool(numWorkers int, jobQueueLen int) *Pool { jobQueue := make(chan Job, jobQueueLen) workerPool := make(chan *worker, numWorkers) pool := &Pool{ JobQueue: jobQueue, dispatcher: newDispatcher(workerPool, jobQueue), } return pool }
go
{ "resource": "" }
q5828
OpenQueue
train
func OpenQueue(dataDir string) (*Queue, error) { var err error // Create a new Queue. q := &Queue{ DataDir: dataDir, db: &leveldb.DB{}, head: 0, tail: 0, isOpen: false, } // Open database for the queue. q.db, err = leveldb.OpenFile(dataDir, nil) if err != nil { return q, err } // Check if this Goque type can open the requested data directory. ok, err := checkGoqueType(dataDir, goqueQueue) if err != nil { return q, err } if !ok { return q, ErrIncompatibleType } // Set isOpen and return. q.isOpen = true return q, q.init() }
go
{ "resource": "" }
q5829
Dequeue
train
func (q *Queue) Dequeue() (*Item, error) { q.Lock() defer q.Unlock() // Check if queue is closed. if !q.isOpen { return nil, ErrDBClosed } // Try to get the next item in the queue. item, err := q.getItemByID(q.head + 1) if err != nil { return nil, err } // Remove this item from the queue. if err := q.db.Delete(item.Key, nil); err != nil { return nil, err } // Increment head position. q.head++ return item, nil }
go
{ "resource": "" }
q5830
Peek
train
func (q *Queue) Peek() (*Item, error) { q.RLock() defer q.RUnlock() // Check if queue is closed. if !q.isOpen { return nil, ErrDBClosed } return q.getItemByID(q.head + 1) }
go
{ "resource": "" }
q5831
Close
train
func (q *Queue) Close() error { q.Lock() defer q.Unlock() // Check if queue is already closed. if !q.isOpen { return nil } // Close the LevelDB database. if err := q.db.Close(); err != nil { return err } // Reset queue head and tail and set // isOpen to false. q.head = 0 q.tail = 0 q.isOpen = false return nil }
go
{ "resource": "" }
q5832
Drop
train
func (q *Queue) Drop() error { if err := q.Close(); err != nil { return err } return os.RemoveAll(q.DataDir) }
go
{ "resource": "" }
q5833
init
train
func (q *Queue) init() error { // Create a new LevelDB Iterator. iter := q.db.NewIterator(nil, nil) defer iter.Release() // Set queue head to the first item. if iter.First() { q.head = keyToID(iter.Key()) - 1 } // Set queue tail to the last item. if iter.Last() { q.tail = keyToID(iter.Key()) } return iter.Error() }
go
{ "resource": "" }
q5834
checkGoqueType
train
func checkGoqueType(dataDir string, gt goqueType) (bool, error) { // Set the path to 'GOQUE' file. path := filepath.Join(dataDir, "GOQUE") // Read 'GOQUE' file for this directory. f, err := os.OpenFile(path, os.O_RDONLY, 0) if os.IsNotExist(err) { f, err = os.OpenFile(path, os.O_RDWR|os.O_CREATE, 0644) if err != nil { return false, err } defer f.Close() // Create byte slice of goqueType. gtb := make([]byte, 1) gtb[0] = byte(gt) _, err = f.Write(gtb) if err != nil { return false, err } return true, nil } if err != nil { return false, err } defer f.Close() // Get the saved type from the file. fb := make([]byte, 1) _, err = f.Read(fb) if err != nil { return false, err } // Convert the file byte to its goqueType. filegt := goqueType(fb[0]) // Compare the types. if filegt == gt { return true, nil } else if filegt == goqueStack && gt == goqueQueue { return true, nil } else if filegt == goqueQueue && gt == goqueStack { return true, nil } return false, nil }
go
{ "resource": "" }
q5835
OpenPrefixQueue
train
func OpenPrefixQueue(dataDir string) (*PrefixQueue, error) { var err error // Create a new Queue. pq := &PrefixQueue{ DataDir: dataDir, db: &leveldb.DB{}, isOpen: false, } // Open database for the prefix queue. pq.db, err = leveldb.OpenFile(dataDir, nil) if err != nil { return nil, err } // Check if this Goque type can open the requested data directory. ok, err := checkGoqueType(dataDir, goquePrefixQueue) if err != nil { return nil, err } if !ok { return nil, ErrIncompatibleType } // Set isOpen and return. pq.isOpen = true return pq, pq.init() }
go
{ "resource": "" }
q5836
EnqueueString
train
func (pq *PrefixQueue) EnqueueString(prefix, value string) (*Item, error) { return pq.Enqueue([]byte(prefix), []byte(value)) }
go
{ "resource": "" }
q5837
Dequeue
train
func (pq *PrefixQueue) Dequeue(prefix []byte) (*Item, error) { pq.Lock() defer pq.Unlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } // Get the queue for this prefix. q, err := pq.getQueue(prefix) if err != nil { return nil, err } // Try to get the next item in the queue. item, err := pq.getItemByPrefixID(prefix, q.Head+1) if err != nil { return nil, err } // Remove this item from the queue. if err := pq.db.Delete(item.Key, nil); err != nil { return nil, err } // Increment head position and decrement prefix queue size. q.Head++ pq.size-- // Save the queue. if err := pq.saveQueue(prefix, q); err != nil { return nil, err } // Save main prefix queue data. if err := pq.save(); err != nil { return nil, err } return item, nil }
go
{ "resource": "" }
q5838
DequeueString
train
func (pq *PrefixQueue) DequeueString(prefix string) (*Item, error) { return pq.Dequeue([]byte(prefix)) }
go
{ "resource": "" }
q5839
Peek
train
func (pq *PrefixQueue) Peek(prefix []byte) (*Item, error) { pq.RLock() defer pq.RUnlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } // Get the queue for this prefix. q, err := pq.getQueue(prefix) if err != nil { return nil, err } return pq.getItemByPrefixID(prefix, q.Head+1) }
go
{ "resource": "" }
q5840
PeekString
train
func (pq *PrefixQueue) PeekString(prefix string) (*Item, error) { return pq.Peek([]byte(prefix)) }
go
{ "resource": "" }
q5841
PeekByIDString
train
func (pq *PrefixQueue) PeekByIDString(prefix string, id uint64) (*Item, error) { return pq.PeekByID([]byte(prefix), id) }
go
{ "resource": "" }
q5842
Update
train
func (pq *PrefixQueue) Update(prefix []byte, id uint64, newValue []byte) (*Item, error) { pq.Lock() defer pq.Unlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } // Get the queue for this prefix. q, err := pq.getQueue(prefix) if err != nil { return nil, err } // Check if item exists in queue. if id <= q.Head || id > q.Tail { return nil, ErrOutOfBounds } // Create new Item. item := &Item{ ID: id, Key: generateKeyPrefixID(prefix, id), Value: newValue, } // Update this item in the queue. if err := pq.db.Put(item.Key, item.Value, nil); err != nil { return nil, err } return item, nil }
go
{ "resource": "" }
q5843
UpdateString
train
func (pq *PrefixQueue) UpdateString(prefix string, id uint64, value string) (*Item, error) { return pq.Update([]byte(prefix), id, []byte(value)) }
go
{ "resource": "" }
q5844
Close
train
func (pq *PrefixQueue) Close() error { pq.Lock() defer pq.Unlock() // Check if queue is already closed. if !pq.isOpen { return nil } // Close the LevelDB database. if err := pq.db.Close(); err != nil { return err } // Reset size and set isOpen to false. pq.size = 0 pq.isOpen = false return nil }
go
{ "resource": "" }
q5845
Drop
train
func (pq *PrefixQueue) Drop() error { if err := pq.Close(); err != nil { return err } return os.RemoveAll(pq.DataDir) }
go
{ "resource": "" }
q5846
getQueue
train
func (pq *PrefixQueue) getQueue(prefix []byte) (*queue, error) { // Try to get the queue gob value. qval, err := pq.db.Get(generateKeyPrefixData(prefix), nil) if err == errors.ErrNotFound { return nil, ErrEmpty } else if err != nil { return nil, err } // Decode gob to our queue type. q := &queue{} buffer := bytes.NewBuffer(qval) dec := gob.NewDecoder(buffer) return q, dec.Decode(q) }
go
{ "resource": "" }
q5847
saveQueue
train
func (pq *PrefixQueue) saveQueue(prefix []byte, q *queue) error { // Encode the queue using gob. var buffer bytes.Buffer enc := gob.NewEncoder(&buffer) if err := enc.Encode(q); err != nil { return err } // Save it to the database. return pq.db.Put(generateKeyPrefixData(prefix), buffer.Bytes(), nil) }
go
{ "resource": "" }
q5848
save
train
func (pq *PrefixQueue) save() error { val := make([]byte, 8) binary.BigEndian.PutUint64(val, pq.size) return pq.db.Put(pq.getDataKey(), val, nil) }
go
{ "resource": "" }
q5849
getDataKey
train
func (pq *PrefixQueue) getDataKey() []byte { var key []byte key = append(key, prefixDelimiter) return append(key, []byte(":main_data")...) }
go
{ "resource": "" }
q5850
getItemByPrefixID
train
func (pq *PrefixQueue) getItemByPrefixID(prefix []byte, id uint64) (*Item, error) { // Check if empty. if pq.size == 0 { return nil, ErrEmpty } // Get the queue for this prefix. q, err := pq.getQueue(prefix) if err != nil { return nil, err } // Check if out of bounds. if id <= q.Head || id > q.Tail { return nil, ErrOutOfBounds } // Get item from database. item := &Item{ ID: id, Key: generateKeyPrefixID(prefix, id), } if item.Value, err = pq.db.Get(item.Key, nil); err != nil { return nil, err } return item, nil }
go
{ "resource": "" }
q5851
init
train
func (pq *PrefixQueue) init() error { // Get the main prefix queue data. val, err := pq.db.Get(pq.getDataKey(), nil) if err == errors.ErrNotFound { return nil } else if err != nil { return err } pq.size = binary.BigEndian.Uint64(val) return nil }
go
{ "resource": "" }
q5852
generateKeyPrefixID
train
func generateKeyPrefixID(prefix []byte, id uint64) []byte { // Handle the prefix. key := append(prefix, prefixDelimiter) // Handle the item ID. key = append(key, idToKey(id)...) return key }
go
{ "resource": "" }
q5853
OpenPriorityQueue
train
func OpenPriorityQueue(dataDir string, order order) (*PriorityQueue, error) { var err error // Create a new PriorityQueue. pq := &PriorityQueue{ DataDir: dataDir, db: &leveldb.DB{}, order: order, isOpen: false, } // Open database for the priority queue. pq.db, err = leveldb.OpenFile(dataDir, nil) if err != nil { return pq, err } // Check if this Goque type can open the requested data directory. ok, err := checkGoqueType(dataDir, goquePriorityQueue) if err != nil { return pq, err } if !ok { return pq, ErrIncompatibleType } // Set isOpen and return. pq.isOpen = true return pq, pq.init() }
go
{ "resource": "" }
q5854
Enqueue
train
func (pq *PriorityQueue) Enqueue(priority uint8, value []byte) (*PriorityItem, error) { pq.Lock() defer pq.Unlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } // Get the priorityLevel. level := pq.levels[priority] // Create new PriorityItem. item := &PriorityItem{ ID: level.tail + 1, Priority: priority, Key: pq.generateKey(priority, level.tail+1), Value: value, } // Add it to the priority queue. if err := pq.db.Put(item.Key, item.Value, nil); err != nil { return nil, err } // Increment tail position. level.tail++ // If this priority level is more important than the curLevel. if pq.cmpAsc(priority) || pq.cmpDesc(priority) { pq.curLevel = priority } return item, nil }
go
{ "resource": "" }
q5855
Dequeue
train
func (pq *PriorityQueue) Dequeue() (*PriorityItem, error) { pq.Lock() defer pq.Unlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } // Try to get the next item. item, err := pq.getNextItem() if err != nil { return nil, err } // Remove this item from the priority queue. if err = pq.db.Delete(item.Key, nil); err != nil { return nil, err } // Increment head position. pq.levels[pq.curLevel].head++ return item, nil }
go
{ "resource": "" }
q5856
DequeueByPriority
train
func (pq *PriorityQueue) DequeueByPriority(priority uint8) (*PriorityItem, error) { pq.Lock() defer pq.Unlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } // Try to get the next item in the given priority level. item, err := pq.getItemByPriorityID(priority, pq.levels[priority].head+1) if err != nil { return nil, err } // Remove this item from the priority queue. if err = pq.db.Delete(item.Key, nil); err != nil { return nil, err } // Increment head position. pq.levels[priority].head++ return item, nil }
go
{ "resource": "" }
q5857
Peek
train
func (pq *PriorityQueue) Peek() (*PriorityItem, error) { pq.RLock() defer pq.RUnlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } return pq.getNextItem() }
go
{ "resource": "" }
q5858
PeekByPriorityID
train
func (pq *PriorityQueue) PeekByPriorityID(priority uint8, id uint64) (*PriorityItem, error) { pq.RLock() defer pq.RUnlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } return pq.getItemByPriorityID(priority, id) }
go
{ "resource": "" }
q5859
Update
train
func (pq *PriorityQueue) Update(priority uint8, id uint64, newValue []byte) (*PriorityItem, error) { pq.Lock() defer pq.Unlock() // Check if queue is closed. if !pq.isOpen { return nil, ErrDBClosed } // Check if item exists in queue. if id <= pq.levels[priority].head || id > pq.levels[priority].tail { return nil, ErrOutOfBounds } // Create new PriorityItem. item := &PriorityItem{ ID: id, Priority: priority, Key: pq.generateKey(priority, id), Value: newValue, } // Update this item in the queue. if err := pq.db.Put(item.Key, item.Value, nil); err != nil { return nil, err } return item, nil }
go
{ "resource": "" }
q5860
Length
train
func (pq *PriorityQueue) Length() uint64 { pq.RLock() defer pq.RUnlock() var length uint64 for _, v := range pq.levels { length += v.length() } return length }
go
{ "resource": "" }
q5861
Close
train
func (pq *PriorityQueue) Close() error { pq.Lock() defer pq.Unlock() // Check if queue is already closed. if !pq.isOpen { return nil } // Close the LevelDB database. if err := pq.db.Close(); err != nil { return err } // Reset head and tail of each priority level // and set isOpen to false. for i := 0; i <= 255; i++ { pq.levels[uint8(i)].head = 0 pq.levels[uint8(i)].tail = 0 } pq.isOpen = false return nil }
go
{ "resource": "" }
q5862
cmpAsc
train
func (pq *PriorityQueue) cmpAsc(priority uint8) bool { return pq.order == ASC && priority < pq.curLevel }
go
{ "resource": "" }
q5863
cmpDesc
train
func (pq *PriorityQueue) cmpDesc(priority uint8) bool { return pq.order == DESC && priority > pq.curLevel }
go
{ "resource": "" }
q5864
resetCurrentLevel
train
func (pq *PriorityQueue) resetCurrentLevel() { if pq.order == ASC { pq.curLevel = 255 } else if pq.order == DESC { pq.curLevel = 0 } }
go
{ "resource": "" }
q5865
findOffset
train
func (pq *PriorityQueue) findOffset(offset uint64) (*PriorityItem, error) { var length uint64 var curLevel uint8 = pq.curLevel var newLevel int // Handle newLevel initialization for descending order. if pq.order == DESC { newLevel = 255 } // For condition expression. condExpr := func(level int) bool { if pq.order == ASC { return level <= 255 } return level >= 0 } // For loop expression. loopExpr := func(level *int) { if pq.order == ASC { *level++ } else if pq.order == DESC { *level-- } } // Level comparison. cmpLevels := func(newLevel, curLevel uint8) bool { if pq.order == ASC { return newLevel >= curLevel } return newLevel <= curLevel } // Loop through the priority levels. for ; condExpr(newLevel); loopExpr(&newLevel) { // If this level is lower than the current level based on ordering and contains items. if cmpLevels(uint8(newLevel), curLevel) && pq.levels[uint8(newLevel)].length() > 0 { curLevel = uint8(newLevel) newLength := pq.levels[curLevel].length() // If the offset is within the current priority level. if length+newLength >= offset+1 { return pq.getItemByPriorityID(curLevel, offset-length+1) } length += newLength } } return nil, ErrOutOfBounds }
go
{ "resource": "" }
q5866
getNextItem
train
func (pq *PriorityQueue) getNextItem() (*PriorityItem, error) { // If the current priority level is empty. if pq.levels[pq.curLevel].length() == 0 { // Set starting value for curLevel. pq.resetCurrentLevel() // Try to get the next priority level. for i := 0; i <= 255; i++ { if (pq.cmpAsc(uint8(i)) || pq.cmpDesc(uint8(i))) && pq.levels[uint8(i)].length() > 0 { pq.curLevel = uint8(i) } } // If still empty, return queue empty error. if pq.levels[pq.curLevel].length() == 0 { return nil, ErrEmpty } } // Try to get the next item in the current priority level. return pq.getItemByPriorityID(pq.curLevel, pq.levels[pq.curLevel].head+1) }
go
{ "resource": "" }
q5867
generatePrefix
train
func (pq *PriorityQueue) generatePrefix(level uint8) []byte { // priority + prefixSep = 1 + 1 = 2 prefix := make([]byte, 2) prefix[0] = byte(level) prefix[1] = prefixSep[0] return prefix }
go
{ "resource": "" }
q5868
generateKey
train
func (pq *PriorityQueue) generateKey(priority uint8, id uint64) []byte { // prefix + key = 2 + 8 = 10 key := make([]byte, 10) copy(key[0:2], pq.generatePrefix(priority)) copy(key[2:], idToKey(id)) return key }
go
{ "resource": "" }
q5869
init
train
func (pq *PriorityQueue) init() error { // Set starting value for curLevel. pq.resetCurrentLevel() // Loop through each priority level. for i := 0; i <= 255; i++ { // Create a new LevelDB Iterator for this priority level. prefix := pq.generatePrefix(uint8(i)) iter := pq.db.NewIterator(util.BytesPrefix(prefix), nil) // Create a new priorityLevel. pl := &priorityLevel{ head: 0, tail: 0, } // Set priority level head to the first item. if iter.First() { pl.head = keyToID(iter.Key()[2:]) - 1 // Since this priority level has item(s), handle updating curLevel. if pq.cmpAsc(uint8(i)) || pq.cmpDesc(uint8(i)) { pq.curLevel = uint8(i) } } // Set priority level tail to the last item. if iter.Last() { pl.tail = keyToID(iter.Key()[2:]) } if iter.Error() != nil { return iter.Error() } pq.levels[i] = pl iter.Release() } return nil }
go
{ "resource": "" }
q5870
idToKey
train
func idToKey(id uint64) []byte { key := make([]byte, 8) binary.BigEndian.PutUint64(key, id) return key }
go
{ "resource": "" }
q5871
OpenStack
train
func OpenStack(dataDir string) (*Stack, error) { var err error // Create a new Stack. s := &Stack{ DataDir: dataDir, db: &leveldb.DB{}, head: 0, tail: 0, isOpen: false, } // Open database for the stack. s.db, err = leveldb.OpenFile(dataDir, nil) if err != nil { return s, err } // Check if this Goque type can open the requested data directory. ok, err := checkGoqueType(dataDir, goqueStack) if err != nil { return s, err } if !ok { return s, ErrIncompatibleType } // Set isOpen and return. s.isOpen = true return s, s.init() }
go
{ "resource": "" }
q5872
Push
train
func (s *Stack) Push(value []byte) (*Item, error) { s.Lock() defer s.Unlock() // Check if stack is closed. if !s.isOpen { return nil, ErrDBClosed } // Create new Item. item := &Item{ ID: s.head + 1, Key: idToKey(s.head + 1), Value: value, } // Add it to the stack. if err := s.db.Put(item.Key, item.Value, nil); err != nil { return nil, err } // Increment head position. s.head++ return item, nil }
go
{ "resource": "" }
q5873
PushString
train
func (s *Stack) PushString(value string) (*Item, error) { return s.Push([]byte(value)) }
go
{ "resource": "" }
q5874
Pop
train
func (s *Stack) Pop() (*Item, error) { s.Lock() defer s.Unlock() // Check if stack is closed. if !s.isOpen { return nil, ErrDBClosed } // Try to get the next item in the stack. item, err := s.getItemByID(s.head) if err != nil { return nil, err } // Remove this item from the stack. if err := s.db.Delete(item.Key, nil); err != nil { return nil, err } // Decrement head position. s.head-- return item, nil }
go
{ "resource": "" }
q5875
Peek
train
func (s *Stack) Peek() (*Item, error) { s.RLock() defer s.RUnlock() // Check if stack is closed. if !s.isOpen { return nil, ErrDBClosed } return s.getItemByID(s.head) }
go
{ "resource": "" }
q5876
PeekByOffset
train
func (s *Stack) PeekByOffset(offset uint64) (*Item, error) { s.RLock() defer s.RUnlock() // Check if stack is closed. if !s.isOpen { return nil, ErrDBClosed } return s.getItemByID(s.head - offset) }
go
{ "resource": "" }
q5877
Update
train
func (s *Stack) Update(id uint64, newValue []byte) (*Item, error) { s.Lock() defer s.Unlock() // Check if stack is closed. if !s.isOpen { return nil, ErrDBClosed } // Check if item exists in stack. if id > s.head || id <= s.tail { return nil, ErrOutOfBounds } // Create new Item. item := &Item{ ID: id, Key: idToKey(id), Value: newValue, } // Update this item in the stack. if err := s.db.Put(item.Key, item.Value, nil); err != nil { return nil, err } return item, nil }
go
{ "resource": "" }
q5878
Close
train
func (s *Stack) Close() error { s.Lock() defer s.Unlock() // Check if stack is already closed. if !s.isOpen { return nil } // Close the LevelDB database. if err := s.db.Close(); err != nil { return err } // Reset stack head and tail and set // isOpen to false. s.head = 0 s.tail = 0 s.isOpen = false return nil }
go
{ "resource": "" }
q5879
Drop
train
func (s *Stack) Drop() error { if err := s.Close(); err != nil { return err } return os.RemoveAll(s.DataDir) }
go
{ "resource": "" }
q5880
init
train
func (s *Stack) init() error { // Create a new LevelDB Iterator. iter := s.db.NewIterator(nil, nil) defer iter.Release() // Set stack head to the last item. if iter.Last() { s.head = keyToID(iter.Key()) } // Set stack tail to the first item. if iter.First() { s.tail = keyToID(iter.Key()) - 1 } return iter.Error() }
go
{ "resource": "" }
q5881
RetrieveAssertionInfo
train
func (sp *SAMLServiceProvider) RetrieveAssertionInfo(encodedResponse string) (*AssertionInfo, error) { assertionInfo := &AssertionInfo{ Values: make(Values), } response, err := sp.ValidateEncodedResponse(encodedResponse) if err != nil { return nil, ErrVerification{Cause: err} } // TODO: Support multiple assertions if len(response.Assertions) == 0 { return nil, ErrMissingAssertion } assertion := response.Assertions[0] assertionInfo.Assertions = response.Assertions assertionInfo.ResponseSignatureValidated = response.SignatureValidated warningInfo, err := sp.VerifyAssertionConditions(&assertion) if err != nil { return nil, err } //Get the NameID subject := assertion.Subject if subject == nil { return nil, ErrMissingElement{Tag: SubjectTag} } nameID := subject.NameID if nameID == nil { return nil, ErrMissingElement{Tag: NameIdTag} } assertionInfo.NameID = nameID.Value //Get the actual assertion attributes attributeStatement := assertion.AttributeStatement if attributeStatement == nil && !sp.AllowMissingAttributes { return nil, ErrMissingElement{Tag: AttributeStatementTag} } if attributeStatement != nil { for _, attribute := range attributeStatement.Attributes { assertionInfo.Values[attribute.Name] = attribute } } if assertion.AuthnStatement != nil { if assertion.AuthnStatement.AuthnInstant != nil { assertionInfo.AuthnInstant = assertion.AuthnStatement.AuthnInstant } if assertion.AuthnStatement.SessionNotOnOrAfter != nil { assertionInfo.SessionNotOnOrAfter = assertion.AuthnStatement.SessionNotOnOrAfter } } assertionInfo.WarningInfo = warningInfo return assertionInfo, nil }
go
{ "resource": "" }
q5882
BuildAuthURL
train
func (sp *SAMLServiceProvider) BuildAuthURL(relayState string) (string, error) { doc, err := sp.BuildAuthRequestDocument() if err != nil { return "", err } return sp.BuildAuthURLFromDocument(relayState, doc) }
go
{ "resource": "" }
q5883
AuthRedirect
train
func (sp *SAMLServiceProvider) AuthRedirect(w http.ResponseWriter, r *http.Request, relayState string) (err error) { url, err := sp.BuildAuthURL(relayState) if err != nil { return err } http.Redirect(w, r, url, http.StatusFound) return nil }
go
{ "resource": "" }
q5884
validateResponseAttributes
train
func (sp *SAMLServiceProvider) validateResponseAttributes(response *types.Response) error { if response.Destination != "" && response.Destination != sp.AssertionConsumerServiceURL { return ErrInvalidValue{ Key: DestinationAttr, Expected: sp.AssertionConsumerServiceURL, Actual: response.Destination, } } if response.Version != "2.0" { return ErrInvalidValue{ Reason: ReasonUnsupported, Key: "SAML version", Expected: "2.0", Actual: response.Version, } } return nil }
go
{ "resource": "" }
q5885
ValidateEncodedResponse
train
func (sp *SAMLServiceProvider) ValidateEncodedResponse(encodedResponse string) (*types.Response, error) { raw, err := base64.StdEncoding.DecodeString(encodedResponse) if err != nil { return nil, err } // Parse the raw response doc, el, err := parseResponse(raw) if err != nil { return nil, err } var responseSignatureValidated bool if !sp.SkipSignatureValidation { el, err = sp.validateElementSignature(el) if err == dsig.ErrMissingSignature { // Unfortunately we just blew away our Response el = doc.Root() } else if err != nil { return nil, err } else if el == nil { return nil, fmt.Errorf("missing transformed response") } else { responseSignatureValidated = true } } err = sp.decryptAssertions(el) if err != nil { return nil, err } var assertionSignaturesValidated bool if !sp.SkipSignatureValidation { err = sp.validateAssertionSignatures(el) if err == dsig.ErrMissingSignature { if !responseSignatureValidated { return nil, fmt.Errorf("response and/or assertions must be signed") } } else if err != nil { return nil, err } else { assertionSignaturesValidated = true } } decodedResponse := &types.Response{} err = xmlUnmarshalElement(el, decodedResponse) if err != nil { return nil, fmt.Errorf("unable to unmarshal response: %v", err) } decodedResponse.SignatureValidated = responseSignatureValidated if assertionSignaturesValidated { for idx := 0; idx < len(decodedResponse.Assertions); idx++ { decodedResponse.Assertions[idx].SignatureValidated = true } } err = sp.Validate(decodedResponse) if err != nil { return nil, err } return decodedResponse, nil }
go
{ "resource": "" }
q5886
DecodeUnverifiedBaseResponse
train
func DecodeUnverifiedBaseResponse(encodedResponse string) (*types.UnverifiedBaseResponse, error) { raw, err := base64.StdEncoding.DecodeString(encodedResponse) if err != nil { return nil, err } var response *types.UnverifiedBaseResponse err = maybeDeflate(raw, func(maybeXML []byte) error { response = &types.UnverifiedBaseResponse{} return xml.Unmarshal(maybeXML, response) }) if err != nil { return nil, err } return response, nil }
go
{ "resource": "" }
q5887
maybeDeflate
train
func maybeDeflate(data []byte, decoder func([]byte) error) error { err := decoder(data) if err == nil { return nil } deflated, err := ioutil.ReadAll(flate.NewReader(bytes.NewReader(data))) if err != nil { return err } return decoder(deflated) }
go
{ "resource": "" }
q5888
parseResponse
train
func parseResponse(xml []byte) (*etree.Document, *etree.Element, error) { var doc *etree.Document err := maybeDeflate(xml, func(xml []byte) error { doc = etree.NewDocument() return doc.ReadFromBytes(xml) }) if err != nil { return nil, nil, err } el := doc.Root() if el == nil { return nil, nil, fmt.Errorf("unable to parse response") } return doc, el, nil }
go
{ "resource": "" }
q5889
Decrypt
train
func (ea *EncryptedAssertion) Decrypt(cert *tls.Certificate) (*Assertion, error) { plaintext, err := ea.DecryptBytes(cert) if err != nil { return nil, fmt.Errorf("Error decrypting assertion: %v", err) } assertion := &Assertion{} err = xml.Unmarshal(plaintext, assertion) if err != nil { return nil, fmt.Errorf("Error unmarshaling assertion: %v", err) } return assertion, nil }
go
{ "resource": "" }
q5890
DecryptSymmetricKey
train
func (ek *EncryptedKey) DecryptSymmetricKey(cert *tls.Certificate) (cipher.Block, error) { if len(cert.Certificate) < 1 { return nil, fmt.Errorf("decryption tls.Certificate has no public certs attached") } // The EncryptedKey may or may not include X509Data (certificate). // If included, the EncryptedKey certificate: // - is FYI only (fail if it does not match the SP certificate) // - is NOT used to decrypt CipherData if ek.X509Data != "" { if encCert, err := base64.StdEncoding.DecodeString(ek.X509Data); err != nil { return nil, fmt.Errorf("error decoding EncryptedKey certificate: %v", err) } else if !bytes.Equal(cert.Certificate[0], encCert) { return nil, fmt.Errorf("key decryption attempted with mismatched cert, SP cert(%.11s), assertion cert(%.11s)", debugKeyFp(cert.Certificate[0]), debugKeyFp(encCert)) } } cipherText, err := base64.StdEncoding.DecodeString(ek.CipherValue) if err != nil { return nil, err } switch pk := cert.PrivateKey.(type) { case *rsa.PrivateKey: var h hash.Hash switch ek.EncryptionMethod.DigestMethod.Algorithm { case "", MethodSHA1: h = sha1.New() // default case MethodSHA256: h = sha256.New() case MethodSHA512: h = sha512.New() default: return nil, fmt.Errorf("unsupported digest algorithm: %v", ek.EncryptionMethod.DigestMethod.Algorithm) } switch ek.EncryptionMethod.Algorithm { case "": return nil, fmt.Errorf("missing encryption algorithm") case MethodRSAOAEP, MethodRSAOAEP2: pt, err := rsa.DecryptOAEP(h, rand.Reader, pk, cipherText, nil) if err != nil { return nil, fmt.Errorf("rsa internal error: %v", err) } b, err := aes.NewCipher(pt) if err != nil { return nil, err } return b, nil default: return nil, fmt.Errorf("unsupported encryption algorithm: %s", ek.EncryptionMethod.Algorithm) } } return nil, fmt.Errorf("no cipher for decoding symmetric key") }
go
{ "resource": "" }
q5891
VerifyAssertionConditions
train
func (sp *SAMLServiceProvider) VerifyAssertionConditions(assertion *types.Assertion) (*WarningInfo, error) { warningInfo := &WarningInfo{} now := sp.Clock.Now() conditions := assertion.Conditions if conditions == nil { return nil, ErrMissingElement{Tag: ConditionsTag} } if conditions.NotBefore == "" { return nil, ErrMissingElement{Tag: ConditionsTag, Attribute: NotBeforeAttr} } notBefore, err := time.Parse(time.RFC3339, conditions.NotBefore) if err != nil { return nil, ErrParsing{Tag: NotBeforeAttr, Value: conditions.NotBefore, Type: "time.RFC3339"} } if now.Before(notBefore) { warningInfo.InvalidTime = true } if conditions.NotOnOrAfter == "" { return nil, ErrMissingElement{Tag: ConditionsTag, Attribute: NotOnOrAfterAttr} } notOnOrAfter, err := time.Parse(time.RFC3339, conditions.NotOnOrAfter) if err != nil { return nil, ErrParsing{Tag: NotOnOrAfterAttr, Value: conditions.NotOnOrAfter, Type: "time.RFC3339"} } if now.After(notOnOrAfter) { warningInfo.InvalidTime = true } for _, audienceRestriction := range conditions.AudienceRestrictions { matched := false for _, audience := range audienceRestriction.Audiences { if audience.Value == sp.AudienceURI { matched = true break } } if !matched { warningInfo.NotInAudience = true break } } if conditions.OneTimeUse != nil { warningInfo.OneTimeUse = true } proxyRestriction := conditions.ProxyRestriction if proxyRestriction != nil { proxyRestrictionInfo := &ProxyRestriction{ Count: proxyRestriction.Count, Audience: []string{}, } for _, audience := range proxyRestriction.Audience { proxyRestrictionInfo.Audience = append(proxyRestrictionInfo.Audience, audience.Value) } warningInfo.ProxyRestriction = proxyRestrictionInfo } return warningInfo, nil }
go
{ "resource": "" }
q5892
Validate
train
func (sp *SAMLServiceProvider) Validate(response *types.Response) error { err := sp.validateResponseAttributes(response) if err != nil { return err } if len(response.Assertions) == 0 { return ErrMissingAssertion } issuer := response.Issuer if issuer == nil { // FIXME?: SAML Core 2.0 Section 3.2.2 has Response.Issuer as [Optional] return ErrMissingElement{Tag: IssuerTag} } if sp.IdentityProviderIssuer != "" && response.Issuer.Value != sp.IdentityProviderIssuer { return ErrInvalidValue{ Key: IssuerTag, Expected: sp.IdentityProviderIssuer, Actual: response.Issuer.Value, } } status := response.Status if status == nil { return ErrMissingElement{Tag: StatusTag} } statusCode := status.StatusCode if statusCode == nil { return ErrMissingElement{Tag: StatusCodeTag} } if statusCode.Value != StatusCodeSuccess { return ErrInvalidValue{ Key: StatusCodeTag, Expected: StatusCodeSuccess, Actual: statusCode.Value, } } for _, assertion := range response.Assertions { issuer = assertion.Issuer if issuer == nil { return ErrMissingElement{Tag: IssuerTag} } if sp.IdentityProviderIssuer != "" && assertion.Issuer.Value != sp.IdentityProviderIssuer { return ErrInvalidValue{ Key: IssuerTag, Expected: sp.IdentityProviderIssuer, Actual: issuer.Value, } } subject := assertion.Subject if subject == nil { return ErrMissingElement{Tag: SubjectTag} } subjectConfirmation := subject.SubjectConfirmation if subjectConfirmation == nil { return ErrMissingElement{Tag: SubjectConfirmationTag} } if subjectConfirmation.Method != SubjMethodBearer { return ErrInvalidValue{ Reason: ReasonUnsupported, Key: SubjectConfirmationTag, Expected: SubjMethodBearer, Actual: subjectConfirmation.Method, } } subjectConfirmationData := subjectConfirmation.SubjectConfirmationData if subjectConfirmationData == nil { return ErrMissingElement{Tag: SubjectConfirmationDataTag} } if subjectConfirmationData.Recipient != sp.AssertionConsumerServiceURL { return ErrInvalidValue{ Key: RecipientAttr, Expected: sp.AssertionConsumerServiceURL, Actual: subjectConfirmationData.Recipient, } } if subjectConfirmationData.NotOnOrAfter == "" { return ErrMissingElement{Tag: SubjectConfirmationDataTag, Attribute: NotOnOrAfterAttr} } notOnOrAfter, err := time.Parse(time.RFC3339, subjectConfirmationData.NotOnOrAfter) if err != nil { return ErrParsing{Tag: NotOnOrAfterAttr, Value: subjectConfirmationData.NotOnOrAfter, Type: "time.RFC3339"} } now := sp.Clock.Now() if now.After(notOnOrAfter) { return ErrInvalidValue{ Reason: ReasonExpired, Key: NotOnOrAfterAttr, Expected: now.Format(time.RFC3339), Actual: subjectConfirmationData.NotOnOrAfter, } } } return nil }
go
{ "resource": "" }
q5893
makeTermios2
train
func makeTermios2(options OpenOptions) (*termios2, error) { // Sanity check inter-character timeout and minimum read size options. vtime := uint(round(float64(options.InterCharacterTimeout)/100.0) * 100) vmin := options.MinimumReadSize if vmin == 0 && vtime < 100 { return nil, errors.New("invalid values for InterCharacterTimeout and MinimumReadSize") } if vtime > 25500 { return nil, errors.New("invalid value for InterCharacterTimeout") } ccOpts := [kNCCS]cc_t{} ccOpts[syscall.VTIME] = cc_t(vtime / 100) ccOpts[syscall.VMIN] = cc_t(vmin) t2 := &termios2{ c_cflag: syscall.CLOCAL | syscall.CREAD | kBOTHER, c_ispeed: speed_t(options.BaudRate), c_ospeed: speed_t(options.BaudRate), c_cc: ccOpts, } switch options.StopBits { case 1: case 2: t2.c_cflag |= syscall.CSTOPB default: return nil, errors.New("invalid setting for StopBits") } switch options.ParityMode { case PARITY_NONE: case PARITY_ODD: t2.c_cflag |= syscall.PARENB t2.c_cflag |= syscall.PARODD case PARITY_EVEN: t2.c_cflag |= syscall.PARENB default: return nil, errors.New("invalid setting for ParityMode") } switch options.DataBits { case 5: t2.c_cflag |= syscall.CS5 case 6: t2.c_cflag |= syscall.CS6 case 7: t2.c_cflag |= syscall.CS7 case 8: t2.c_cflag |= syscall.CS8 default: return nil, errors.New("invalid setting for DataBits") } if options.RTSCTSFlowControl { t2.c_cflag |= unix.CRTSCTS } return t2, nil }
go
{ "resource": "" }
q5894
setTermios
train
func setTermios(fd uintptr, src *termios) error { // Make the ioctl syscall that sets the termios struct. r1, _, errno := syscall.Syscall( syscall.SYS_IOCTL, fd, uintptr(kTIOCSETA), uintptr(unsafe.Pointer(src))) // Did the syscall return an error? if errno != 0 { return os.NewSyscallError("SYS_IOCTL", errno) } // Just in case, check the return value as well. if r1 != 0 { return errors.New("Unknown error from SYS_IOCTL.") } return nil }
go
{ "resource": "" }
q5895
Execute
train
func (ws *windowsService) Execute(args []string, r <-chan wsvc.ChangeRequest, changes chan<- wsvc.Status) (bool, uint32) { const cmdsAccepted = wsvc.AcceptStop | wsvc.AcceptShutdown changes <- wsvc.Status{State: wsvc.StartPending} if err := ws.i.Start(); err != nil { ws.setError(err) return true, 1 } changes <- wsvc.Status{State: wsvc.Running, Accepts: cmdsAccepted} loop: for { c := <-r switch c.Cmd { case wsvc.Interrogate: changes <- c.CurrentStatus case wsvc.Stop, wsvc.Shutdown: changes <- wsvc.Status{State: wsvc.StopPending} err := ws.i.Stop() if err != nil { ws.setError(err) return true, 2 } break loop default: continue loop } } return false, 0 }
go
{ "resource": "" }
q5896
Run
train
func Run(service Service, sig ...os.Signal) error { env := environment{} if err := service.Init(env); err != nil { return err } if err := service.Start(); err != nil { return err } if len(sig) == 0 { sig = []os.Signal{syscall.SIGINT, syscall.SIGTERM} } signalChan := make(chan os.Signal, 1) signalNotify(signalChan, sig...) <-signalChan return service.Stop() }
go
{ "resource": "" }
q5897
NewSwitch
train
func NewSwitch(Cond node.Node, CaseList *CaseList) *Switch { return &Switch{ FreeFloating: nil, Cond: Cond, CaseList: CaseList, } }
go
{ "resource": "" }
q5898
NewConstant
train
func NewConstant(ConstantName node.Node, Expr node.Node, PhpDocComment string) *Constant { return &Constant{ FreeFloating: nil, PhpDocComment: PhpDocComment, ConstantName: ConstantName, Expr: Expr, } }
go
{ "resource": "" }
q5899
NewIdentical
train
func NewIdentical(Variable node.Node, Expression node.Node) *Identical { return &Identical{ FreeFloating: nil, Left: Variable, Right: Expression, } }
go
{ "resource": "" }