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RoaringBitmap/roaring
roaring.go
Or
func (rb *Bitmap) Or(x2 *Bitmap) { pos1 := 0 pos2 := 0 length1 := rb.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for (pos1 < length1) && (pos2 < length2) { s1 := rb.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 < s2 { pos1++ if pos1 == length1 { break main } s1 = rb.highlowcontainer.getKeyAtIndex(pos1) } else if s1 > s2 { rb.highlowcontainer.insertNewKeyValueAt(pos1, s2, x2.highlowcontainer.getContainerAtIndex(pos2).clone()) pos1++ length1++ pos2++ if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else { rb.highlowcontainer.replaceKeyAndContainerAtIndex(pos1, s1, rb.highlowcontainer.getWritableContainerAtIndex(pos1).ior(x2.highlowcontainer.getContainerAtIndex(pos2)), false) pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = rb.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } if pos1 == length1 { rb.highlowcontainer.appendCopyMany(x2.highlowcontainer, pos2, length2) } }
go
func (rb *Bitmap) Or(x2 *Bitmap) { pos1 := 0 pos2 := 0 length1 := rb.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for (pos1 < length1) && (pos2 < length2) { s1 := rb.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 < s2 { pos1++ if pos1 == length1 { break main } s1 = rb.highlowcontainer.getKeyAtIndex(pos1) } else if s1 > s2 { rb.highlowcontainer.insertNewKeyValueAt(pos1, s2, x2.highlowcontainer.getContainerAtIndex(pos2).clone()) pos1++ length1++ pos2++ if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else { rb.highlowcontainer.replaceKeyAndContainerAtIndex(pos1, s1, rb.highlowcontainer.getWritableContainerAtIndex(pos1).ior(x2.highlowcontainer.getContainerAtIndex(pos2)), false) pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = rb.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } if pos1 == length1 { rb.highlowcontainer.appendCopyMany(x2.highlowcontainer, pos2, length2) } }
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// Or computes the union between two bitmaps and stores the result in the current bitmap
[ "Or", "computes", "the", "union", "between", "two", "bitmaps", "and", "stores", "the", "result", "in", "the", "current", "bitmap" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L841-L882
train
RoaringBitmap/roaring
roaring.go
AndNot
func (rb *Bitmap) AndNot(x2 *Bitmap) { pos1 := 0 pos2 := 0 intersectionsize := 0 length1 := rb.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for { if pos1 < length1 && pos2 < length2 { s1 := rb.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 == s2 { c1 := rb.highlowcontainer.getWritableContainerAtIndex(pos1) c2 := x2.highlowcontainer.getContainerAtIndex(pos2) diff := c1.iandNot(c2) if diff.getCardinality() > 0 { rb.highlowcontainer.replaceKeyAndContainerAtIndex(intersectionsize, s1, diff, false) intersectionsize++ } pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = rb.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else if s1 < s2 { c1 := rb.highlowcontainer.getContainerAtIndex(pos1) mustCopyOnWrite := rb.highlowcontainer.needsCopyOnWrite(pos1) rb.highlowcontainer.replaceKeyAndContainerAtIndex(intersectionsize, s1, c1, mustCopyOnWrite) intersectionsize++ pos1++ if pos1 == length1 { break main } s1 = rb.highlowcontainer.getKeyAtIndex(pos1) } else { //s1 > s2 pos2 = x2.highlowcontainer.advanceUntil(s1, pos2) if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } else { break } } // TODO:implement as a copy for pos1 < length1 { c1 := rb.highlowcontainer.getContainerAtIndex(pos1) s1 := rb.highlowcontainer.getKeyAtIndex(pos1) mustCopyOnWrite := rb.highlowcontainer.needsCopyOnWrite(pos1) rb.highlowcontainer.replaceKeyAndContainerAtIndex(intersectionsize, s1, c1, mustCopyOnWrite) intersectionsize++ pos1++ } rb.highlowcontainer.resize(intersectionsize) }
go
func (rb *Bitmap) AndNot(x2 *Bitmap) { pos1 := 0 pos2 := 0 intersectionsize := 0 length1 := rb.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for { if pos1 < length1 && pos2 < length2 { s1 := rb.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 == s2 { c1 := rb.highlowcontainer.getWritableContainerAtIndex(pos1) c2 := x2.highlowcontainer.getContainerAtIndex(pos2) diff := c1.iandNot(c2) if diff.getCardinality() > 0 { rb.highlowcontainer.replaceKeyAndContainerAtIndex(intersectionsize, s1, diff, false) intersectionsize++ } pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = rb.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else if s1 < s2 { c1 := rb.highlowcontainer.getContainerAtIndex(pos1) mustCopyOnWrite := rb.highlowcontainer.needsCopyOnWrite(pos1) rb.highlowcontainer.replaceKeyAndContainerAtIndex(intersectionsize, s1, c1, mustCopyOnWrite) intersectionsize++ pos1++ if pos1 == length1 { break main } s1 = rb.highlowcontainer.getKeyAtIndex(pos1) } else { //s1 > s2 pos2 = x2.highlowcontainer.advanceUntil(s1, pos2) if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } else { break } } // TODO:implement as a copy for pos1 < length1 { c1 := rb.highlowcontainer.getContainerAtIndex(pos1) s1 := rb.highlowcontainer.getKeyAtIndex(pos1) mustCopyOnWrite := rb.highlowcontainer.needsCopyOnWrite(pos1) rb.highlowcontainer.replaceKeyAndContainerAtIndex(intersectionsize, s1, c1, mustCopyOnWrite) intersectionsize++ pos1++ } rb.highlowcontainer.resize(intersectionsize) }
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// AndNot computes the difference between two bitmaps and stores the result in the current bitmap
[ "AndNot", "computes", "the", "difference", "between", "two", "bitmaps", "and", "stores", "the", "result", "in", "the", "current", "bitmap" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L885-L945
train
RoaringBitmap/roaring
roaring.go
Or
func Or(x1, x2 *Bitmap) *Bitmap { answer := NewBitmap() pos1 := 0 pos2 := 0 length1 := x1.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for (pos1 < length1) && (pos2 < length2) { s1 := x1.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 < s2 { answer.highlowcontainer.appendCopy(x1.highlowcontainer, pos1) pos1++ if pos1 == length1 { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) } else if s1 > s2 { answer.highlowcontainer.appendCopy(x2.highlowcontainer, pos2) pos2++ if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else { answer.highlowcontainer.appendContainer(s1, x1.highlowcontainer.getContainerAtIndex(pos1).or(x2.highlowcontainer.getContainerAtIndex(pos2)), false) pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } if pos1 == length1 { answer.highlowcontainer.appendCopyMany(x2.highlowcontainer, pos2, length2) } else if pos2 == length2 { answer.highlowcontainer.appendCopyMany(x1.highlowcontainer, pos1, length1) } return answer }
go
func Or(x1, x2 *Bitmap) *Bitmap { answer := NewBitmap() pos1 := 0 pos2 := 0 length1 := x1.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for (pos1 < length1) && (pos2 < length2) { s1 := x1.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 < s2 { answer.highlowcontainer.appendCopy(x1.highlowcontainer, pos1) pos1++ if pos1 == length1 { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) } else if s1 > s2 { answer.highlowcontainer.appendCopy(x2.highlowcontainer, pos2) pos2++ if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else { answer.highlowcontainer.appendContainer(s1, x1.highlowcontainer.getContainerAtIndex(pos1).or(x2.highlowcontainer.getContainerAtIndex(pos2)), false) pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } if pos1 == length1 { answer.highlowcontainer.appendCopyMany(x2.highlowcontainer, pos2, length2) } else if pos2 == length2 { answer.highlowcontainer.appendCopyMany(x1.highlowcontainer, pos1, length1) } return answer }
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// Or computes the union between two bitmaps and returns the result
[ "Or", "computes", "the", "union", "between", "two", "bitmaps", "and", "returns", "the", "result" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L948-L993
train
RoaringBitmap/roaring
roaring.go
And
func And(x1, x2 *Bitmap) *Bitmap { answer := NewBitmap() pos1 := 0 pos2 := 0 length1 := x1.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for pos1 < length1 && pos2 < length2 { s1 := x1.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 == s2 { C := x1.highlowcontainer.getContainerAtIndex(pos1) C = C.and(x2.highlowcontainer.getContainerAtIndex(pos2)) if C.getCardinality() > 0 { answer.highlowcontainer.appendContainer(s1, C, false) } pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else if s1 < s2 { pos1 = x1.highlowcontainer.advanceUntil(s2, pos1) if pos1 == length1 { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) } else { // s1 > s2 pos2 = x2.highlowcontainer.advanceUntil(s1, pos2) if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } return answer }
go
func And(x1, x2 *Bitmap) *Bitmap { answer := NewBitmap() pos1 := 0 pos2 := 0 length1 := x1.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for pos1 < length1 && pos2 < length2 { s1 := x1.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 == s2 { C := x1.highlowcontainer.getContainerAtIndex(pos1) C = C.and(x2.highlowcontainer.getContainerAtIndex(pos2)) if C.getCardinality() > 0 { answer.highlowcontainer.appendContainer(s1, C, false) } pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else if s1 < s2 { pos1 = x1.highlowcontainer.advanceUntil(s2, pos1) if pos1 == length1 { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) } else { // s1 > s2 pos2 = x2.highlowcontainer.advanceUntil(s1, pos2) if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } return answer }
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// And computes the intersection between two bitmaps and returns the result
[ "And", "computes", "the", "intersection", "between", "two", "bitmaps", "and", "returns", "the", "result" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L996-L1037
train
RoaringBitmap/roaring
roaring.go
Xor
func Xor(x1, x2 *Bitmap) *Bitmap { answer := NewBitmap() pos1 := 0 pos2 := 0 length1 := x1.highlowcontainer.size() length2 := x2.highlowcontainer.size() for { if (pos1 < length1) && (pos2 < length2) { s1 := x1.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) if s1 < s2 { answer.highlowcontainer.appendCopy(x1.highlowcontainer, pos1) pos1++ } else if s1 > s2 { answer.highlowcontainer.appendCopy(x2.highlowcontainer, pos2) pos2++ } else { c := x1.highlowcontainer.getContainerAtIndex(pos1).xor(x2.highlowcontainer.getContainerAtIndex(pos2)) if c.getCardinality() > 0 { answer.highlowcontainer.appendContainer(s1, c, false) } pos1++ pos2++ } } else { break } } if pos1 == length1 { answer.highlowcontainer.appendCopyMany(x2.highlowcontainer, pos2, length2) } else if pos2 == length2 { answer.highlowcontainer.appendCopyMany(x1.highlowcontainer, pos1, length1) } return answer }
go
func Xor(x1, x2 *Bitmap) *Bitmap { answer := NewBitmap() pos1 := 0 pos2 := 0 length1 := x1.highlowcontainer.size() length2 := x2.highlowcontainer.size() for { if (pos1 < length1) && (pos2 < length2) { s1 := x1.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) if s1 < s2 { answer.highlowcontainer.appendCopy(x1.highlowcontainer, pos1) pos1++ } else if s1 > s2 { answer.highlowcontainer.appendCopy(x2.highlowcontainer, pos2) pos2++ } else { c := x1.highlowcontainer.getContainerAtIndex(pos1).xor(x2.highlowcontainer.getContainerAtIndex(pos2)) if c.getCardinality() > 0 { answer.highlowcontainer.appendContainer(s1, c, false) } pos1++ pos2++ } } else { break } } if pos1 == length1 { answer.highlowcontainer.appendCopyMany(x2.highlowcontainer, pos2, length2) } else if pos2 == length2 { answer.highlowcontainer.appendCopyMany(x1.highlowcontainer, pos1, length1) } return answer }
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// Xor computes the symmetric difference between two bitmaps and returns the result
[ "Xor", "computes", "the", "symmetric", "difference", "between", "two", "bitmaps", "and", "returns", "the", "result" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L1040-L1074
train
RoaringBitmap/roaring
roaring.go
AndNot
func AndNot(x1, x2 *Bitmap) *Bitmap { answer := NewBitmap() pos1 := 0 pos2 := 0 length1 := x1.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for { if pos1 < length1 && pos2 < length2 { s1 := x1.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 < s2 { answer.highlowcontainer.appendCopy(x1.highlowcontainer, pos1) pos1++ if pos1 == length1 { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) } else if s1 == s2 { c1 := x1.highlowcontainer.getContainerAtIndex(pos1) c2 := x2.highlowcontainer.getContainerAtIndex(pos2) diff := c1.andNot(c2) if diff.getCardinality() > 0 { answer.highlowcontainer.appendContainer(s1, diff, false) } pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else { //s1 > s2 pos2 = x2.highlowcontainer.advanceUntil(s1, pos2) if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } else { break } } if pos2 == length2 { answer.highlowcontainer.appendCopyMany(x1.highlowcontainer, pos1, length1) } return answer }
go
func AndNot(x1, x2 *Bitmap) *Bitmap { answer := NewBitmap() pos1 := 0 pos2 := 0 length1 := x1.highlowcontainer.size() length2 := x2.highlowcontainer.size() main: for { if pos1 < length1 && pos2 < length2 { s1 := x1.highlowcontainer.getKeyAtIndex(pos1) s2 := x2.highlowcontainer.getKeyAtIndex(pos2) for { if s1 < s2 { answer.highlowcontainer.appendCopy(x1.highlowcontainer, pos1) pos1++ if pos1 == length1 { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) } else if s1 == s2 { c1 := x1.highlowcontainer.getContainerAtIndex(pos1) c2 := x2.highlowcontainer.getContainerAtIndex(pos2) diff := c1.andNot(c2) if diff.getCardinality() > 0 { answer.highlowcontainer.appendContainer(s1, diff, false) } pos1++ pos2++ if (pos1 == length1) || (pos2 == length2) { break main } s1 = x1.highlowcontainer.getKeyAtIndex(pos1) s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } else { //s1 > s2 pos2 = x2.highlowcontainer.advanceUntil(s1, pos2) if pos2 == length2 { break main } s2 = x2.highlowcontainer.getKeyAtIndex(pos2) } } } else { break } } if pos2 == length2 { answer.highlowcontainer.appendCopyMany(x1.highlowcontainer, pos1, length1) } return answer }
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// AndNot computes the difference between two bitmaps and returns the result
[ "AndNot", "computes", "the", "difference", "between", "two", "bitmaps", "and", "returns", "the", "result" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L1077-L1127
train
RoaringBitmap/roaring
roaring.go
AddMany
func (rb *Bitmap) AddMany(dat []uint32) { if len(dat) == 0 { return } prev := dat[0] idx, c := rb.addwithptr(prev) for _, i := range dat[1:] { if highbits(prev) == highbits(i) { c = c.iaddReturnMinimized(lowbits(i)) rb.highlowcontainer.setContainerAtIndex(idx, c) } else { idx, c = rb.addwithptr(i) } prev = i } }
go
func (rb *Bitmap) AddMany(dat []uint32) { if len(dat) == 0 { return } prev := dat[0] idx, c := rb.addwithptr(prev) for _, i := range dat[1:] { if highbits(prev) == highbits(i) { c = c.iaddReturnMinimized(lowbits(i)) rb.highlowcontainer.setContainerAtIndex(idx, c) } else { idx, c = rb.addwithptr(i) } prev = i } }
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// AddMany add all of the values in dat
[ "AddMany", "add", "all", "of", "the", "values", "in", "dat" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L1130-L1145
train
RoaringBitmap/roaring
roaring.go
BitmapOf
func BitmapOf(dat ...uint32) *Bitmap { ans := NewBitmap() ans.AddMany(dat) return ans }
go
func BitmapOf(dat ...uint32) *Bitmap { ans := NewBitmap() ans.AddMany(dat) return ans }
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// BitmapOf generates a new bitmap filled with the specified integers
[ "BitmapOf", "generates", "a", "new", "bitmap", "filled", "with", "the", "specified", "integers" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L1148-L1152
train
RoaringBitmap/roaring
roaring.go
Stats
func (rb *Bitmap) Stats() Statistics { stats := Statistics{} stats.Containers = uint64(len(rb.highlowcontainer.containers)) for _, c := range rb.highlowcontainer.containers { stats.Cardinality += uint64(c.getCardinality()) switch c.(type) { case *arrayContainer: stats.ArrayContainers++ stats.ArrayContainerBytes += uint64(c.getSizeInBytes()) stats.ArrayContainerValues += uint64(c.getCardinality()) case *bitmapContainer: stats.BitmapContainers++ stats.BitmapContainerBytes += uint64(c.getSizeInBytes()) stats.BitmapContainerValues += uint64(c.getCardinality()) case *runContainer16: stats.RunContainers++ stats.RunContainerBytes += uint64(c.getSizeInBytes()) stats.RunContainerValues += uint64(c.getCardinality()) } } return stats }
go
func (rb *Bitmap) Stats() Statistics { stats := Statistics{} stats.Containers = uint64(len(rb.highlowcontainer.containers)) for _, c := range rb.highlowcontainer.containers { stats.Cardinality += uint64(c.getCardinality()) switch c.(type) { case *arrayContainer: stats.ArrayContainers++ stats.ArrayContainerBytes += uint64(c.getSizeInBytes()) stats.ArrayContainerValues += uint64(c.getCardinality()) case *bitmapContainer: stats.BitmapContainers++ stats.BitmapContainerBytes += uint64(c.getSizeInBytes()) stats.BitmapContainerValues += uint64(c.getCardinality()) case *runContainer16: stats.RunContainers++ stats.RunContainerBytes += uint64(c.getSizeInBytes()) stats.RunContainerValues += uint64(c.getCardinality()) } } return stats }
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// Stats returns details on container type usage in a Statistics struct.
[ "Stats", "returns", "details", "on", "container", "type", "usage", "in", "a", "Statistics", "struct", "." ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaring.go#L1405-L1427
train
RoaringBitmap/roaring
arraycontainer.go
iaddRange
func (ac *arrayContainer) iaddRange(firstOfRange, endx int) container { if firstOfRange >= endx { return ac } indexstart := binarySearch(ac.content, uint16(firstOfRange)) if indexstart < 0 { indexstart = -indexstart - 1 } indexend := binarySearch(ac.content, uint16(endx-1)) if indexend < 0 { indexend = -indexend - 1 } else { indexend++ } rangelength := endx - firstOfRange newcardinality := indexstart + (ac.getCardinality() - indexend) + rangelength if newcardinality > arrayDefaultMaxSize { a := ac.toBitmapContainer() return a.iaddRange(firstOfRange, endx) } if cap(ac.content) < newcardinality { tmp := make([]uint16, newcardinality, newcardinality) copy(tmp[:indexstart], ac.content[:indexstart]) copy(tmp[indexstart+rangelength:], ac.content[indexend:]) ac.content = tmp } else { ac.content = ac.content[:newcardinality] copy(ac.content[indexstart+rangelength:], ac.content[indexend:]) } for k := 0; k < rangelength; k++ { ac.content[k+indexstart] = uint16(firstOfRange + k) } return ac }
go
func (ac *arrayContainer) iaddRange(firstOfRange, endx int) container { if firstOfRange >= endx { return ac } indexstart := binarySearch(ac.content, uint16(firstOfRange)) if indexstart < 0 { indexstart = -indexstart - 1 } indexend := binarySearch(ac.content, uint16(endx-1)) if indexend < 0 { indexend = -indexend - 1 } else { indexend++ } rangelength := endx - firstOfRange newcardinality := indexstart + (ac.getCardinality() - indexend) + rangelength if newcardinality > arrayDefaultMaxSize { a := ac.toBitmapContainer() return a.iaddRange(firstOfRange, endx) } if cap(ac.content) < newcardinality { tmp := make([]uint16, newcardinality, newcardinality) copy(tmp[:indexstart], ac.content[:indexstart]) copy(tmp[indexstart+rangelength:], ac.content[indexend:]) ac.content = tmp } else { ac.content = ac.content[:newcardinality] copy(ac.content[indexstart+rangelength:], ac.content[indexend:]) } for k := 0; k < rangelength; k++ { ac.content[k+indexstart] = uint16(firstOfRange + k) } return ac }
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// add the values in the range [firstOfRange,endx)
[ "add", "the", "values", "in", "the", "range", "[", "firstOfRange", "endx", ")" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/arraycontainer.go#L60-L95
train
RoaringBitmap/roaring
arraycontainer.go
iremoveReturnMinimized
func (ac *arrayContainer) iremoveReturnMinimized(x uint16) container { ac.iremove(x) return ac }
go
func (ac *arrayContainer) iremoveReturnMinimized(x uint16) container { ac.iremove(x) return ac }
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// iremoveReturnMinimized is allowed to change the return type to minimize storage.
[ "iremoveReturnMinimized", "is", "allowed", "to", "change", "the", "return", "type", "to", "minimize", "storage", "." ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/arraycontainer.go#L273-L276
train
RoaringBitmap/roaring
serialization_generic.go
byteSliceAsInterval16Slice
func byteSliceAsInterval16Slice(byteSlice []byte) []interval16 { if len(byteSlice)%4 != 0 { panic("Slice size should be divisible by 4") } intervalSlice := make([]interval16, len(byteSlice)/4) for i := range intervalSlice { intervalSlice[i] = interval16{ start: binary.LittleEndian.Uint16(byteSlice[i*4:]), length: binary.LittleEndian.Uint16(byteSlice[i*4+2:]), } } return intervalSlice }
go
func byteSliceAsInterval16Slice(byteSlice []byte) []interval16 { if len(byteSlice)%4 != 0 { panic("Slice size should be divisible by 4") } intervalSlice := make([]interval16, len(byteSlice)/4) for i := range intervalSlice { intervalSlice[i] = interval16{ start: binary.LittleEndian.Uint16(byteSlice[i*4:]), length: binary.LittleEndian.Uint16(byteSlice[i*4+2:]), } } return intervalSlice }
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// Converts a byte slice to a interval16 slice. // The function assumes that the slice byte buffer is run container data // encoded according to Roaring Format Spec
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8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/serialization_generic.go#L108-L123
train
RoaringBitmap/roaring
clz_compat.go
countLeadingZeros
func countLeadingZeros(i uint64) int { if i == 0 { return 64 } n := 1 x := uint32(i >> 32) if x == 0 { n += 32 x = uint32(i) } if (x >> 16) == 0 { n += 16 x <<= 16 } if (x >> 24) == 0 { n += 8 x <<= 8 } if x>>28 == 0 { n += 4 x <<= 4 } if x>>30 == 0 { n += 2 x <<= 2 } n -= int(x >> 31) return n }
go
func countLeadingZeros(i uint64) int { if i == 0 { return 64 } n := 1 x := uint32(i >> 32) if x == 0 { n += 32 x = uint32(i) } if (x >> 16) == 0 { n += 16 x <<= 16 } if (x >> 24) == 0 { n += 8 x <<= 8 } if x>>28 == 0 { n += 4 x <<= 4 } if x>>30 == 0 { n += 2 x <<= 2 } n -= int(x >> 31) return n }
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// LeadingZeroBits returns the number of consecutive most significant zero // bits of x.
[ "LeadingZeroBits", "returns", "the", "number", "of", "consecutive", "most", "significant", "zero", "bits", "of", "x", "." ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/clz_compat.go#L7-L36
train
RoaringBitmap/roaring
roaringarray.go
serializedSizeInBytes
func (ra *roaringArray) serializedSizeInBytes() uint64 { answer := ra.headerSize() for _, c := range ra.containers { answer += uint64(c.serializedSizeInBytes()) } return answer }
go
func (ra *roaringArray) serializedSizeInBytes() uint64 { answer := ra.headerSize() for _, c := range ra.containers { answer += uint64(c.serializedSizeInBytes()) } return answer }
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// should be dirt cheap
[ "should", "be", "dirt", "cheap" ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/roaringarray.go#L451-L457
train
RoaringBitmap/roaring
smat.go
smatWrap
func smatWrap(cb func(c *smatContext)) func(smat.Context) (next smat.State, err error) { return func(ctx smat.Context) (next smat.State, err error) { c := ctx.(*smatContext) cb(c) return smatRunning, nil } }
go
func smatWrap(cb func(c *smatContext)) func(smat.Context) (next smat.State, err error) { return func(ctx smat.Context) (next smat.State, err error) { c := ctx.(*smatContext) cb(c) return smatRunning, nil } }
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// Creates an smat action func based on a simple callback.
[ "Creates", "an", "smat", "action", "func", "based", "on", "a", "simple", "callback", "." ]
8d778e47dd84f169ef4436abb474b0e0101a6dae
https://github.com/RoaringBitmap/roaring/blob/8d778e47dd84f169ef4436abb474b0e0101a6dae/smat.go#L173-L179
train
mesosphere/mesos-dns
records/state/client/cli.go
NewStateLoader
func NewStateLoader(doer httpcli.Doer, initialEndpoint urls.Builder, unmarshal Unmarshaler) StateLoader { return func(masters []string) (state.State, error) { return LoadMasterStateTryAll(masters, func(ip, port string) (state.State, error) { return LoadMasterStateFailover(ip, func(tryIP string) (state.State, error) { return LoadMasterState(doer, initialEndpoint, tryIP, port, unmarshal) }) }) } }
go
func NewStateLoader(doer httpcli.Doer, initialEndpoint urls.Builder, unmarshal Unmarshaler) StateLoader { return func(masters []string) (state.State, error) { return LoadMasterStateTryAll(masters, func(ip, port string) (state.State, error) { return LoadMasterStateFailover(ip, func(tryIP string) (state.State, error) { return LoadMasterState(doer, initialEndpoint, tryIP, port, unmarshal) }) }) } }
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// NewStateLoader generates a new Mesos master state loader using the given http client and initial endpoint.
[ "NewStateLoader", "generates", "a", "new", "Mesos", "master", "state", "loader", "using", "the", "given", "http", "client", "and", "initial", "endpoint", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/client/cli.go#L27-L36
train
mesosphere/mesos-dns
records/state/client/cli.go
LoadMasterStateTryAll
func LoadMasterStateTryAll(masters []string, stateLoader func(ip, port string) (state.State, error)) (state.State, error) { var sj state.State var leader string if len(masters) > 0 { leader, masters = masters[0], masters[1:] } else { return sj, errors.New("no masters given to fetch state.json") } // Check if ZK leader is correct if leader != "" { logging.VeryVerbose.Println("Zookeeper says the leader is: ", leader) ip, port, err := urls.SplitHostPort(leader) if err != nil { logging.Error.Println(err) } else { if sj, err = stateLoader(ip, port); err == nil { return sj, nil } logging.Error.Println("Failed to fetch state from leader. Error: ", err) if len(masters) == 0 { logging.Error.Println("No more masters to try, returning last error") return sj, err } logging.Error.Println("Falling back to remaining masters: ", masters) } } // try each listed mesos master before dying var ( ip, port string err error ) for _, master := range masters { ip, port, err = urls.SplitHostPort(master) if err != nil { logging.Error.Println(err) continue } if sj, err = stateLoader(ip, port); err != nil { logging.Error.Println("Failed to fetch state - trying next one. Error: ", err) continue } return sj, nil } logging.Error.Println("No more masters eligible for state query, returning last error") return sj, err }
go
func LoadMasterStateTryAll(masters []string, stateLoader func(ip, port string) (state.State, error)) (state.State, error) { var sj state.State var leader string if len(masters) > 0 { leader, masters = masters[0], masters[1:] } else { return sj, errors.New("no masters given to fetch state.json") } // Check if ZK leader is correct if leader != "" { logging.VeryVerbose.Println("Zookeeper says the leader is: ", leader) ip, port, err := urls.SplitHostPort(leader) if err != nil { logging.Error.Println(err) } else { if sj, err = stateLoader(ip, port); err == nil { return sj, nil } logging.Error.Println("Failed to fetch state from leader. Error: ", err) if len(masters) == 0 { logging.Error.Println("No more masters to try, returning last error") return sj, err } logging.Error.Println("Falling back to remaining masters: ", masters) } } // try each listed mesos master before dying var ( ip, port string err error ) for _, master := range masters { ip, port, err = urls.SplitHostPort(master) if err != nil { logging.Error.Println(err) continue } if sj, err = stateLoader(ip, port); err != nil { logging.Error.Println("Failed to fetch state - trying next one. Error: ", err) continue } return sj, nil } logging.Error.Println("No more masters eligible for state query, returning last error") return sj, err }
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// LoadMasterStateTryAll tries each master and looks for the leader; if no leader responds it errors. // The first master in the list is assumed to be the leading mesos master.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/client/cli.go#L40-L90
train
mesosphere/mesos-dns
records/state/client/cli.go
LoadMasterStateFailover
func LoadMasterStateFailover(initialMasterIP string, stateLoader func(ip string) (state.State, error)) (state.State, error) { var err error var sj state.State logging.VeryVerbose.Println("reloading from master " + initialMasterIP) sj, err = stateLoader(initialMasterIP) if err != nil { return state.State{}, err } if sj.Leader != "" { var stateLeaderIP string stateLeaderIP, err = leaderIP(sj.Leader) if err != nil { return sj, err } if stateLeaderIP != initialMasterIP { logging.VeryVerbose.Println("Warning: master changed to " + stateLeaderIP) return stateLoader(stateLeaderIP) } return sj, nil } err = errors.New("fetched state does not contain leader information") return sj, err }
go
func LoadMasterStateFailover(initialMasterIP string, stateLoader func(ip string) (state.State, error)) (state.State, error) { var err error var sj state.State logging.VeryVerbose.Println("reloading from master " + initialMasterIP) sj, err = stateLoader(initialMasterIP) if err != nil { return state.State{}, err } if sj.Leader != "" { var stateLeaderIP string stateLeaderIP, err = leaderIP(sj.Leader) if err != nil { return sj, err } if stateLeaderIP != initialMasterIP { logging.VeryVerbose.Println("Warning: master changed to " + stateLeaderIP) return stateLoader(stateLeaderIP) } return sj, nil } err = errors.New("fetched state does not contain leader information") return sj, err }
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// LoadMasterStateFailover catches an attempt to load state from a mesos master. // Attempts can fail from due to a down server or if contacting a mesos master secondary. // It reloads from a different master if the contacted master is a secondary.
[ "LoadMasterStateFailover", "catches", "an", "attempt", "to", "load", "state", "from", "a", "mesos", "master", ".", "Attempts", "can", "fail", "from", "due", "to", "a", "down", "server", "or", "if", "contacting", "a", "mesos", "master", "secondary", ".", "It", "reloads", "from", "a", "different", "master", "if", "the", "contacted", "master", "is", "a", "secondary", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/client/cli.go#L95-L119
train
mesosphere/mesos-dns
records/state/client/cli.go
LoadMasterState
func LoadMasterState(client httpcli.Doer, stateEndpoint urls.Builder, ip, port string, unmarshal Unmarshaler) (sj state.State, _ error) { // REFACTOR: state security u := url.URL(stateEndpoint.With(urls.Host(net.JoinHostPort(ip, port)))) req, err := http.NewRequest("GET", u.String(), nil) if err != nil { logging.Error.Println(err) return state.State{}, err } req.Header.Set("Content-Type", "application/json") // TODO(jdef) unclear why Content-Type vs. Accept req.Header.Set("User-Agent", "Mesos-DNS") resp, err := client.Do(req) if err != nil { logging.Error.Println(err) return sj, err } defer errorutil.Ignore(resp.Body.Close) body, err := ioutil.ReadAll(resp.Body) if err != nil { logging.Error.Println(err) return sj, err } err = unmarshal(body, &sj) if err != nil { logging.Error.Println(err) return sj, err } return }
go
func LoadMasterState(client httpcli.Doer, stateEndpoint urls.Builder, ip, port string, unmarshal Unmarshaler) (sj state.State, _ error) { // REFACTOR: state security u := url.URL(stateEndpoint.With(urls.Host(net.JoinHostPort(ip, port)))) req, err := http.NewRequest("GET", u.String(), nil) if err != nil { logging.Error.Println(err) return state.State{}, err } req.Header.Set("Content-Type", "application/json") // TODO(jdef) unclear why Content-Type vs. Accept req.Header.Set("User-Agent", "Mesos-DNS") resp, err := client.Do(req) if err != nil { logging.Error.Println(err) return sj, err } defer errorutil.Ignore(resp.Body.Close) body, err := ioutil.ReadAll(resp.Body) if err != nil { logging.Error.Println(err) return sj, err } err = unmarshal(body, &sj) if err != nil { logging.Error.Println(err) return sj, err } return }
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// LoadMasterState loads state from mesos master
[ "LoadMasterState", "loads", "state", "from", "mesos", "master" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/client/cli.go#L122-L156
train
mesosphere/mesos-dns
records/state/client/cli.go
leaderIP
func leaderIP(leader string) (string, error) { // TODO(jdef) it's unclear why we drop the port here nameAddressPair := strings.Split(leader, "@") if len(nameAddressPair) != 2 { return "", errors.New("Invalid leader address: " + leader) } hostPort := nameAddressPair[1] host, _, err := net.SplitHostPort(hostPort) if err != nil { return "", err } return host, nil }
go
func leaderIP(leader string) (string, error) { // TODO(jdef) it's unclear why we drop the port here nameAddressPair := strings.Split(leader, "@") if len(nameAddressPair) != 2 { return "", errors.New("Invalid leader address: " + leader) } hostPort := nameAddressPair[1] host, _, err := net.SplitHostPort(hostPort) if err != nil { return "", err } return host, nil }
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// leaderIP returns the ip for the mesos master // input format master@ip:port
[ "leaderIP", "returns", "the", "ip", "for", "the", "mesos", "master", "input", "format", "master" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/client/cli.go#L160-L172
train
mesosphere/mesos-dns
records/validation.go
validateUniqueStrings
func validateUniqueStrings(strings []string, normalize func(string) (string, error)) error { valid := make(map[string]struct{}, len(strings)) for _, str := range strings { normalized, err := normalize(str) if err != nil { return err } if _, found := valid[normalized]; found { return fmt.Errorf("duplicate found: %v", str) } valid[normalized] = struct{}{} } return nil }
go
func validateUniqueStrings(strings []string, normalize func(string) (string, error)) error { valid := make(map[string]struct{}, len(strings)) for _, str := range strings { normalized, err := normalize(str) if err != nil { return err } if _, found := valid[normalized]; found { return fmt.Errorf("duplicate found: %v", str) } valid[normalized] = struct{}{} } return nil }
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// validateUniqueStrings runs a normalize function on each string in a list and // retuns an error if any duplicates are found.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/validation.go#L122-L135
train
mesosphere/mesos-dns
records/validation.go
validateIPSources
func validateIPSources(srcs []string) error { if len(srcs) == 0 { return fmt.Errorf("empty ip sources") } if len(srcs) != len(unique(srcs)) { return fmt.Errorf("duplicate ip source specified") } for _, src := range srcs { switch src { case "host", "docker", "mesos", "netinfo": default: return fmt.Errorf("invalid ip source %q", src) } } return nil }
go
func validateIPSources(srcs []string) error { if len(srcs) == 0 { return fmt.Errorf("empty ip sources") } if len(srcs) != len(unique(srcs)) { return fmt.Errorf("duplicate ip source specified") } for _, src := range srcs { switch src { case "host", "docker", "mesos", "netinfo": default: return fmt.Errorf("invalid ip source %q", src) } } return nil }
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// validateIPSources checks validity of ip sources
[ "validateIPSources", "checks", "validity", "of", "ip", "sources" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/validation.go#L138-L154
train
mesosphere/mesos-dns
records/validation.go
validPortString
func validPortString(portString string) bool { port, err := strconv.Atoi(portString) return err == nil && port > 0 && port <= 65535 }
go
func validPortString(portString string) bool { port, err := strconv.Atoi(portString) return err == nil && port > 0 && port <= 65535 }
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// validPortString retuns true if the given port string is // an integer between 1 and 65535, false otherwise.
[ "validPortString", "retuns", "true", "if", "the", "given", "port", "string", "is", "an", "integer", "between", "1", "and", "65535", "false", "otherwise", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/validation.go#L158-L161
train
mesosphere/mesos-dns
records/generator.go
ToAXFRResourceRecordSet
func (r rrs) ToAXFRResourceRecordSet() models.AXFRResourceRecordSet { ret := make(models.AXFRResourceRecordSet, len(r)) for host, values := range r { ret[host] = make([]string, 0, len(values)) for record := range values { ret[host] = append(ret[host], record) } } return ret }
go
func (r rrs) ToAXFRResourceRecordSet() models.AXFRResourceRecordSet { ret := make(models.AXFRResourceRecordSet, len(r)) for host, values := range r { ret[host] = make([]string, 0, len(values)) for record := range values { ret[host] = append(ret[host], record) } } return ret }
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// Transform the record set into something exportable via the REST API
[ "Transform", "the", "record", "set", "into", "something", "exportable", "via", "the", "REST", "API" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/generator.go#L59-L68
train
mesosphere/mesos-dns
records/generator.go
NewRecordGenerator
func NewRecordGenerator(options ...Option) *RecordGenerator { rg := &RecordGenerator{} rg.stateLoader = func(_ []string) (s state.State, err error) { return } for i := range options { if options[i] != nil { options[i](rg) } } return rg }
go
func NewRecordGenerator(options ...Option) *RecordGenerator { rg := &RecordGenerator{} rg.stateLoader = func(_ []string) (s state.State, err error) { return } for i := range options { if options[i] != nil { options[i](rg) } } return rg }
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// NewRecordGenerator returns a RecordGenerator that's been configured with a timeout.
[ "NewRecordGenerator", "returns", "a", "RecordGenerator", "that", "s", "been", "configured", "with", "a", "timeout", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/generator.go#L160-L169
train
mesosphere/mesos-dns
records/generator.go
InsertState
func (rg *RecordGenerator) InsertState(sj state.State, domain, ns, listener string, masters, ipSources []string, spec labels.Func) error { rg.SlaveIPs = map[string][]string{} rg.SRVs = rrs{} rg.As = rrs{} rg.AAAAs = rrs{} rg.frameworkRecords(sj, domain, spec) rg.slaveRecords(sj, domain, spec) rg.listenerRecord(listener, ns) rg.masterRecord(domain, masters, sj.Leader) rg.taskRecords(sj, domain, spec, ipSources) return nil }
go
func (rg *RecordGenerator) InsertState(sj state.State, domain, ns, listener string, masters, ipSources []string, spec labels.Func) error { rg.SlaveIPs = map[string][]string{} rg.SRVs = rrs{} rg.As = rrs{} rg.AAAAs = rrs{} rg.frameworkRecords(sj, domain, spec) rg.slaveRecords(sj, domain, spec) rg.listenerRecord(listener, ns) rg.masterRecord(domain, masters, sj.Leader) rg.taskRecords(sj, domain, spec, ipSources) return nil }
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// InsertState transforms a StateJSON into RecordGenerator RRs
[ "InsertState", "transforms", "a", "StateJSON", "into", "RecordGenerator", "RRs" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/generator.go#L205-L217
train
mesosphere/mesos-dns
records/generator.go
setFromLocal
func (rg *RecordGenerator) setFromLocal(host string, ns string) { ifaces, err := net.Interfaces() if err != nil { logging.Error.Println(err) } // handle err for _, i := range ifaces { addrs, err := i.Addrs() if err != nil { logging.Error.Println(err) } for _, addr := range addrs { var ip net.IP switch v := addr.(type) { case *net.IPNet: ip = v.IP case *net.IPAddr: ip = v.IP } if ip == nil || ip.IsLoopback() { continue } rg.insertRR(ns, ip.String(), rrsKindForIP(ip)) } } }
go
func (rg *RecordGenerator) setFromLocal(host string, ns string) { ifaces, err := net.Interfaces() if err != nil { logging.Error.Println(err) } // handle err for _, i := range ifaces { addrs, err := i.Addrs() if err != nil { logging.Error.Println(err) } for _, addr := range addrs { var ip net.IP switch v := addr.(type) { case *net.IPNet: ip = v.IP case *net.IPAddr: ip = v.IP } if ip == nil || ip.IsLoopback() { continue } rg.insertRR(ns, ip.String(), rrsKindForIP(ip)) } } }
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// A and AAAA records for each local interface // If this causes problems you should explicitly set the // listener address in config.json
[ "A", "and", "AAAA", "records", "for", "each", "local", "interface", "If", "this", "causes", "problems", "you", "should", "explicitly", "set", "the", "listener", "address", "in", "config", ".", "json" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/generator.go#L500-L531
train
mesosphere/mesos-dns
records/generator.go
ipsTo4And6
func ipsTo4And6(allIPs []net.IP) (ips []net.IP) { var ipv4, ipv6 net.IP for _, ip := range allIPs { if ipv4 != nil && ipv6 != nil { break } else if t4 := ip.To4(); t4 != nil { if ipv4 == nil { ipv4 = t4 } } else if t6 := ip.To16(); t6 != nil { if ipv6 == nil { ipv6 = t6 } } } ips = []net.IP{} if ipv4 != nil { ips = append(ips, ipv4) } if ipv6 != nil { ips = append(ips, ipv6) } return }
go
func ipsTo4And6(allIPs []net.IP) (ips []net.IP) { var ipv4, ipv6 net.IP for _, ip := range allIPs { if ipv4 != nil && ipv6 != nil { break } else if t4 := ip.To4(); t4 != nil { if ipv4 == nil { ipv4 = t4 } } else if t6 := ip.To16(); t6 != nil { if ipv6 == nil { ipv6 = t6 } } } ips = []net.IP{} if ipv4 != nil { ips = append(ips, ipv4) } if ipv6 != nil { ips = append(ips, ipv6) } return }
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// ipsTo4And6 returns a list with at most 1 ipv4 and 1 ipv6 // from a list of IPs
[ "ipsTo4And6", "returns", "a", "list", "with", "at", "most", "1", "ipv4", "and", "1", "ipv6", "from", "a", "list", "of", "IPs" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/generator.go#L572-L595
train
mesosphere/mesos-dns
records/generator.go
hostToIPs
func hostToIPs(hostname string) (ips []net.IP) { if ip := net.ParseIP(hostname); ip != nil { ips = []net.IP{ip} } else if allIPs, err := net.LookupIP(hostname); err == nil { ips = ipsTo4And6(allIPs) } if len(ips) == 0 { logging.VeryVerbose.Printf("cannot translate hostname %q into an ipv4 or ipv6 address", hostname) } return }
go
func hostToIPs(hostname string) (ips []net.IP) { if ip := net.ParseIP(hostname); ip != nil { ips = []net.IP{ip} } else if allIPs, err := net.LookupIP(hostname); err == nil { ips = ipsTo4And6(allIPs) } if len(ips) == 0 { logging.VeryVerbose.Printf("cannot translate hostname %q into an ipv4 or ipv6 address", hostname) } return }
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// hostToIPs attempts to parse a hostname into an ip. // If that doesn't work it will perform a lookup and try to // find one ipv4 and one ipv6 in the results.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/generator.go#L600-L610
train
mesosphere/mesos-dns
records/generator.go
slaveIDTail
func slaveIDTail(slaveID string) string { fields := strings.Split(slaveID, "-") return strings.ToLower(fields[len(fields)-1]) }
go
func slaveIDTail(slaveID string) string { fields := strings.Split(slaveID, "-") return strings.ToLower(fields[len(fields)-1]) }
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// return the slave number from a Mesos slave id
[ "return", "the", "slave", "number", "from", "a", "Mesos", "slave", "id" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/generator.go#L613-L616
train
mesosphere/mesos-dns
exchanger/exchanger.go
Decorate
func Decorate(ex Exchanger, ds ...Decorator) Exchanger { decorated := ex for _, decorate := range ds { decorated = decorate(decorated) } return decorated }
go
func Decorate(ex Exchanger, ds ...Decorator) Exchanger { decorated := ex for _, decorate := range ds { decorated = decorate(decorated) } return decorated }
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// Decorate decorates an Exchanger with the given Decorators.
[ "Decorate", "decorates", "an", "Exchanger", "with", "the", "given", "Decorators", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/exchanger/exchanger.go#L42-L48
train
mesosphere/mesos-dns
exchanger/exchanger.go
ErrorLogging
func ErrorLogging(l *log.Logger) Decorator { return func(ex Exchanger) Exchanger { return Func(func(m *dns.Msg, a string) (r *dns.Msg, rtt time.Duration, err error) { defer func() { if err != nil { l.Printf("%v: exchanging %#v with %q", err, m, a) } }() return ex.Exchange(m, a) }) } }
go
func ErrorLogging(l *log.Logger) Decorator { return func(ex Exchanger) Exchanger { return Func(func(m *dns.Msg, a string) (r *dns.Msg, rtt time.Duration, err error) { defer func() { if err != nil { l.Printf("%v: exchanging %#v with %q", err, m, a) } }() return ex.Exchange(m, a) }) } }
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// ErrorLogging returns a Decorator which logs an Exchanger's errors to the given // logger.
[ "ErrorLogging", "returns", "a", "Decorator", "which", "logs", "an", "Exchanger", "s", "errors", "to", "the", "given", "logger", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/exchanger/exchanger.go#L52-L63
train
mesosphere/mesos-dns
exchanger/exchanger.go
Instrumentation
func Instrumentation(total, success, failure logging.Counter) Decorator { return func(ex Exchanger) Exchanger { return Func(func(m *dns.Msg, a string) (r *dns.Msg, rtt time.Duration, err error) { defer func() { if total.Inc(); err != nil { failure.Inc() } else { success.Inc() } }() return ex.Exchange(m, a) }) } }
go
func Instrumentation(total, success, failure logging.Counter) Decorator { return func(ex Exchanger) Exchanger { return Func(func(m *dns.Msg, a string) (r *dns.Msg, rtt time.Duration, err error) { defer func() { if total.Inc(); err != nil { failure.Inc() } else { success.Inc() } }() return ex.Exchange(m, a) }) } }
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// Instrumentation returns a Decorator which instruments an Exchanger with the given // counters.
[ "Instrumentation", "returns", "a", "Decorator", "which", "instruments", "an", "Exchanger", "with", "the", "given", "counters", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/exchanger/exchanger.go#L67-L80
train
mesosphere/mesos-dns
httpcli/doer.go
New
func New(am AuthMechanism, cm ConfigMap, options ...Option) Doer { defaultClient := &http.Client{} for i := range options { if options[i] != nil { options[i](defaultClient) } } df, ok := factoryFor(am) if !ok { panic(fmt.Sprintf("unregistered auth mechanism %q", am)) } return df(cm, defaultClient) }
go
func New(am AuthMechanism, cm ConfigMap, options ...Option) Doer { defaultClient := &http.Client{} for i := range options { if options[i] != nil { options[i](defaultClient) } } df, ok := factoryFor(am) if !ok { panic(fmt.Sprintf("unregistered auth mechanism %q", am)) } return df(cm, defaultClient) }
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// New generates and returns an HTTP transactor given an optional IAM configuration and some set of // functional options.
[ "New", "generates", "and", "returns", "an", "HTTP", "transactor", "given", "an", "optional", "IAM", "configuration", "and", "some", "set", "of", "functional", "options", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/doer.go#L38-L51
train
mesosphere/mesos-dns
httpcli/doer.go
Timeout
func Timeout(timeout time.Duration) Option { return func(client *http.Client) { client.Timeout = timeout } }
go
func Timeout(timeout time.Duration) Option { return func(client *http.Client) { client.Timeout = timeout } }
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// Timeout returns an Option that configures client timeout
[ "Timeout", "returns", "an", "Option", "that", "configures", "client", "timeout" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/doer.go#L54-L58
train
mesosphere/mesos-dns
httpcli/doer.go
Transport
func Transport(tr http.RoundTripper) Option { return func(client *http.Client) { client.Transport = tr } }
go
func Transport(tr http.RoundTripper) Option { return func(client *http.Client) { client.Transport = tr } }
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// Transport returns an Option that configures client transport
[ "Transport", "returns", "an", "Option", "that", "configures", "client", "transport" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/doer.go#L61-L65
train
mesosphere/mesos-dns
httpcli/doer.go
TLSConfig
func TLSConfig(enabled bool, caPool *x509.CertPool, cert tls.Certificate) (opt urls.Option, config *tls.Config) { opt = urls.Scheme("http") if enabled { opt = urls.Scheme("https") config = &tls.Config{ Certificates: []tls.Certificate{cert}, RootCAs: caPool, InsecureSkipVerify: caPool == nil, } } return }
go
func TLSConfig(enabled bool, caPool *x509.CertPool, cert tls.Certificate) (opt urls.Option, config *tls.Config) { opt = urls.Scheme("http") if enabled { opt = urls.Scheme("https") config = &tls.Config{ Certificates: []tls.Certificate{cert}, RootCAs: caPool, InsecureSkipVerify: caPool == nil, } } return }
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// TLSConfig generates and returns a recommended URL generation option and TLS configuration.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/doer.go#L68-L79
train
mesosphere/mesos-dns
resolver/resolver.go
New
func New(version string, config records.Config) *Resolver { generatorOptions := []records.Option{ records.WithConfig(config), } recordGenerator := records.NewRecordGenerator(generatorOptions...) r := &Resolver{ version: version, config: config, ready: make(chan struct{}), rs: recordGenerator, // rand.Sources aren't safe for concurrent use, except the global one. // See: https://github.com/golang/go/issues/3611 rng: rand.New(&lockedSource{src: rand.NewSource(time.Now().UnixNano())}), masters: append([]string{""}, config.Masters...), generatorOptions: generatorOptions, } timeout := 5 * time.Second if config.Timeout != 0 { timeout = time.Duration(config.Timeout) * time.Second } r.zoneFwds = make(map[string]exchanger.Forwarder) if config.ExternalOn { for zone, resolvers := range config.ZoneResolvers { r.zoneFwds[zone] = exchanger.NewForwarder(resolvers, exchangers(timeout, "udp", "tcp")) } r.defaultFwd = exchanger.NewForwarder( config.Resolvers, exchangers(timeout, "udp", "tcp")) } else { r.defaultFwd = exchanger.NewForwarder( make([]string, 0), exchangers(timeout, "udp", "tcp")) } return r }
go
func New(version string, config records.Config) *Resolver { generatorOptions := []records.Option{ records.WithConfig(config), } recordGenerator := records.NewRecordGenerator(generatorOptions...) r := &Resolver{ version: version, config: config, ready: make(chan struct{}), rs: recordGenerator, // rand.Sources aren't safe for concurrent use, except the global one. // See: https://github.com/golang/go/issues/3611 rng: rand.New(&lockedSource{src: rand.NewSource(time.Now().UnixNano())}), masters: append([]string{""}, config.Masters...), generatorOptions: generatorOptions, } timeout := 5 * time.Second if config.Timeout != 0 { timeout = time.Duration(config.Timeout) * time.Second } r.zoneFwds = make(map[string]exchanger.Forwarder) if config.ExternalOn { for zone, resolvers := range config.ZoneResolvers { r.zoneFwds[zone] = exchanger.NewForwarder(resolvers, exchangers(timeout, "udp", "tcp")) } r.defaultFwd = exchanger.NewForwarder( config.Resolvers, exchangers(timeout, "udp", "tcp")) } else { r.defaultFwd = exchanger.NewForwarder( make([]string, 0), exchangers(timeout, "udp", "tcp")) } return r }
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// New returns a Resolver with the given version and configuration.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L42-L77
train
mesosphere/mesos-dns
resolver/resolver.go
Reload
func (res *Resolver) Reload() { t := records.NewRecordGenerator(res.generatorOptions...) err := t.ParseState(res.config, res.masters...) if err == nil { timestamp := uint32(time.Now().Unix()) // may need to refactor for fairness res.rsLock.Lock() defer res.rsLock.Unlock() atomic.StoreUint32(&res.config.SOASerial, timestamp) res.rs = t select { case <-res.ready: // noop because channel is already closed default: close(res.ready) } } else { logging.Error.Printf("Warning: Error generating records: %v; keeping old DNS state", err) } logging.PrintCurLog() }
go
func (res *Resolver) Reload() { t := records.NewRecordGenerator(res.generatorOptions...) err := t.ParseState(res.config, res.masters...) if err == nil { timestamp := uint32(time.Now().Unix()) // may need to refactor for fairness res.rsLock.Lock() defer res.rsLock.Unlock() atomic.StoreUint32(&res.config.SOASerial, timestamp) res.rs = t select { case <-res.ready: // noop because channel is already closed default: close(res.ready) } } else { logging.Error.Printf("Warning: Error generating records: %v; keeping old DNS state", err) } logging.PrintCurLog() }
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// Reload triggers a new state load from the configured mesos masters. // This method is not goroutine-safe.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L173-L195
train
mesosphere/mesos-dns
resolver/resolver.go
formatSRV
func (res *Resolver) formatSRV(name string, target string) (*dns.SRV, error) { ttl := uint32(res.config.TTL) h, port, err := net.SplitHostPort(target) if err != nil { return nil, errors.New("invalid target") } p, err := strconv.Atoi(port) if err != nil { return nil, errors.New("invalid target port") } return &dns.SRV{ Hdr: dns.RR_Header{ Name: name, Rrtype: dns.TypeSRV, Class: dns.ClassINET, Ttl: ttl, }, Priority: 0, Weight: res.config.SRVRecordDefaultWeight, Port: uint16(p), Target: h, }, nil }
go
func (res *Resolver) formatSRV(name string, target string) (*dns.SRV, error) { ttl := uint32(res.config.TTL) h, port, err := net.SplitHostPort(target) if err != nil { return nil, errors.New("invalid target") } p, err := strconv.Atoi(port) if err != nil { return nil, errors.New("invalid target port") } return &dns.SRV{ Hdr: dns.RR_Header{ Name: name, Rrtype: dns.TypeSRV, Class: dns.ClassINET, Ttl: ttl, }, Priority: 0, Weight: res.config.SRVRecordDefaultWeight, Port: uint16(p), Target: h, }, nil }
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// formatSRV returns the SRV resource record for target
[ "formatSRV", "returns", "the", "SRV", "resource", "record", "for", "target" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L198-L222
train
mesosphere/mesos-dns
resolver/resolver.go
formatA
func (res *Resolver) formatA(dom string, target string) (*dns.A, error) { ttl := uint32(res.config.TTL) a := net.ParseIP(target) if a == nil { return nil, errors.New("invalid target") } return &dns.A{ Hdr: dns.RR_Header{ Name: dom, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: ttl}, A: a.To4(), }, nil }
go
func (res *Resolver) formatA(dom string, target string) (*dns.A, error) { ttl := uint32(res.config.TTL) a := net.ParseIP(target) if a == nil { return nil, errors.New("invalid target") } return &dns.A{ Hdr: dns.RR_Header{ Name: dom, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: ttl}, A: a.To4(), }, nil }
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// returns the A resource record for target // assumes target is a well formed IPv4 address
[ "returns", "the", "A", "resource", "record", "for", "target", "assumes", "target", "is", "a", "well", "formed", "IPv4", "address" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L226-L242
train
mesosphere/mesos-dns
resolver/resolver.go
formatAAAA
func (res *Resolver) formatAAAA(dom string, target string) (*dns.AAAA, error) { ttl := uint32(res.config.TTL) aaaa := net.ParseIP(target) if aaaa == nil { return nil, errors.New("invalid target") } return &dns.AAAA{ Hdr: dns.RR_Header{ Name: dom, Rrtype: dns.TypeAAAA, Class: dns.ClassINET, Ttl: ttl}, AAAA: aaaa.To16(), }, nil }
go
func (res *Resolver) formatAAAA(dom string, target string) (*dns.AAAA, error) { ttl := uint32(res.config.TTL) aaaa := net.ParseIP(target) if aaaa == nil { return nil, errors.New("invalid target") } return &dns.AAAA{ Hdr: dns.RR_Header{ Name: dom, Rrtype: dns.TypeAAAA, Class: dns.ClassINET, Ttl: ttl}, AAAA: aaaa.To16(), }, nil }
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// returns the AAAA resource record for target // assumes target is a well formed IPv6 address
[ "returns", "the", "AAAA", "resource", "record", "for", "target", "assumes", "target", "is", "a", "well", "formed", "IPv6", "address" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L246-L262
train
mesosphere/mesos-dns
resolver/resolver.go
formatSOA
func (res *Resolver) formatSOA(dom string) *dns.SOA { ttl := uint32(res.config.TTL) return &dns.SOA{ Hdr: dns.RR_Header{ Name: dom, Rrtype: dns.TypeSOA, Class: dns.ClassINET, Ttl: ttl, }, Ns: res.config.SOAMname, Mbox: res.config.SOARname, Serial: atomic.LoadUint32(&res.config.SOASerial), Refresh: res.config.SOARefresh, Retry: res.config.SOARetry, Expire: res.config.SOAExpire, Minttl: ttl, } }
go
func (res *Resolver) formatSOA(dom string) *dns.SOA { ttl := uint32(res.config.TTL) return &dns.SOA{ Hdr: dns.RR_Header{ Name: dom, Rrtype: dns.TypeSOA, Class: dns.ClassINET, Ttl: ttl, }, Ns: res.config.SOAMname, Mbox: res.config.SOARname, Serial: atomic.LoadUint32(&res.config.SOASerial), Refresh: res.config.SOARefresh, Retry: res.config.SOARetry, Expire: res.config.SOAExpire, Minttl: ttl, } }
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// formatSOA returns the SOA resource record for the mesos domain
[ "formatSOA", "returns", "the", "SOA", "resource", "record", "for", "the", "mesos", "domain" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L265-L283
train
mesosphere/mesos-dns
resolver/resolver.go
formatNS
func (res *Resolver) formatNS(dom string) *dns.NS { ttl := uint32(res.config.TTL) return &dns.NS{ Hdr: dns.RR_Header{ Name: dom, Rrtype: dns.TypeNS, Class: dns.ClassINET, Ttl: ttl, }, Ns: res.config.SOAMname, } }
go
func (res *Resolver) formatNS(dom string) *dns.NS { ttl := uint32(res.config.TTL) return &dns.NS{ Hdr: dns.RR_Header{ Name: dom, Rrtype: dns.TypeNS, Class: dns.ClassINET, Ttl: ttl, }, Ns: res.config.SOAMname, } }
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// formatNS returns the NS record for the mesos domain
[ "formatNS", "returns", "the", "NS", "record", "for", "the", "mesos", "domain" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L286-L298
train
mesosphere/mesos-dns
resolver/resolver.go
shuffleAnswers
func shuffleAnswers(rng *rand.Rand, answers []dns.RR) []dns.RR { n := len(answers) for i := 0; i < n; i++ { r := i + rng.Intn(n-i) answers[r], answers[i] = answers[i], answers[r] } return answers }
go
func shuffleAnswers(rng *rand.Rand, answers []dns.RR) []dns.RR { n := len(answers) for i := 0; i < n; i++ { r := i + rng.Intn(n-i) answers[r], answers[i] = answers[i], answers[r] } return answers }
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// reorders answers for very basic load balancing
[ "reorders", "answers", "for", "very", "basic", "load", "balancing" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L301-L309
train
mesosphere/mesos-dns
resolver/resolver.go
HandleNonMesos
func (res *Resolver) HandleNonMesos(fwd exchanger.Forwarder) func( dns.ResponseWriter, *dns.Msg) { return func(w dns.ResponseWriter, r *dns.Msg) { logging.CurLog.NonMesosRequests.Inc() m, err := fwd(r, w.RemoteAddr().Network()) if err != nil { m = new(dns.Msg).SetRcode(r, rcode(err)) } else if len(m.Answer) == 0 { logging.CurLog.NonMesosNXDomain.Inc() } reply(w, m, res.config.SetTruncateBit) } }
go
func (res *Resolver) HandleNonMesos(fwd exchanger.Forwarder) func( dns.ResponseWriter, *dns.Msg) { return func(w dns.ResponseWriter, r *dns.Msg) { logging.CurLog.NonMesosRequests.Inc() m, err := fwd(r, w.RemoteAddr().Network()) if err != nil { m = new(dns.Msg).SetRcode(r, rcode(err)) } else if len(m.Answer) == 0 { logging.CurLog.NonMesosNXDomain.Inc() } reply(w, m, res.config.SetTruncateBit) } }
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// HandleNonMesos handles non-mesos queries by forwarding to configured // external DNS servers.
[ "HandleNonMesos", "handles", "non", "-", "mesos", "queries", "by", "forwarding", "to", "configured", "external", "DNS", "servers", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L313-L325
train
mesosphere/mesos-dns
resolver/resolver.go
reply
func reply(w dns.ResponseWriter, m *dns.Msg, setTruncateBit bool) { m.Compress = true // https://github.com/mesosphere/mesos-dns/issues/{170,173,174} maxsize := maxMsgSize(isUDP(w), m.IsEdns0()) truncate(m, maxsize, setTruncateBit) if err := w.WriteMsg(m); err != nil { logging.Error.Println(err) } }
go
func reply(w dns.ResponseWriter, m *dns.Msg, setTruncateBit bool) { m.Compress = true // https://github.com/mesosphere/mesos-dns/issues/{170,173,174} maxsize := maxMsgSize(isUDP(w), m.IsEdns0()) truncate(m, maxsize, setTruncateBit) if err := w.WriteMsg(m); err != nil { logging.Error.Println(err) } }
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// reply writes the given dns.Msg out to the given dns.ResponseWriter, // compressing the message first and truncating it accordingly.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L495-L502
train
mesosphere/mesos-dns
resolver/resolver.go
isUDP
func isUDP(w dns.ResponseWriter) bool { return strings.HasPrefix(w.RemoteAddr().Network(), "udp") }
go
func isUDP(w dns.ResponseWriter) bool { return strings.HasPrefix(w.RemoteAddr().Network(), "udp") }
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// isUDP returns true if the transmission channel in use is UDP.
[ "isUDP", "returns", "true", "if", "the", "transmission", "channel", "in", "use", "is", "UDP", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L505-L507
train
mesosphere/mesos-dns
resolver/resolver.go
LaunchHTTP
func (res *Resolver) LaunchHTTP() <-chan error { defer util.HandleCrash() res.configureHTTP() listenAddress := net.JoinHostPort(res.config.HTTPListener, strconv.Itoa(res.config.HTTPPort)) errCh := make(chan error, 1) go func() { var err error defer func() { errCh <- err }() if err = http.ListenAndServe(listenAddress, nil); err != nil { err = fmt.Errorf("failed to setup http server: %v", err) } else { logging.Error.Println("Not serving http requests any more.") } }() return errCh }
go
func (res *Resolver) LaunchHTTP() <-chan error { defer util.HandleCrash() res.configureHTTP() listenAddress := net.JoinHostPort(res.config.HTTPListener, strconv.Itoa(res.config.HTTPPort)) errCh := make(chan error, 1) go func() { var err error defer func() { errCh <- err }() if err = http.ListenAndServe(listenAddress, nil); err != nil { err = fmt.Errorf("failed to setup http server: %v", err) } else { logging.Error.Println("Not serving http requests any more.") } }() return errCh }
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// LaunchHTTP starts an HTTP server for the Resolver, returning a error channel // to which errors are asynchronously sent.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L604-L622
train
mesosphere/mesos-dns
resolver/resolver.go
RestConfig
func (res *Resolver) RestConfig(req *restful.Request, resp *restful.Response) { if err := resp.WriteAsJson(res.config); err != nil { logging.Error.Println(err) } }
go
func (res *Resolver) RestConfig(req *restful.Request, resp *restful.Response) { if err := resp.WriteAsJson(res.config); err != nil { logging.Error.Println(err) } }
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// RestConfig handles HTTP requests of Resolver configuration.
[ "RestConfig", "handles", "HTTP", "requests", "of", "Resolver", "configuration", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L625-L629
train
mesosphere/mesos-dns
resolver/resolver.go
RestEnumerate
func (res *Resolver) RestEnumerate(req *restful.Request, resp *restful.Response) { enumData := res.records().EnumData if err := resp.WriteAsJson(enumData); err != nil { logging.Error.Println(err) } }
go
func (res *Resolver) RestEnumerate(req *restful.Request, resp *restful.Response) { enumData := res.records().EnumData if err := resp.WriteAsJson(enumData); err != nil { logging.Error.Println(err) } }
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// RestEnumerate handles HTTP requests of the enumeration data
[ "RestEnumerate", "handles", "HTTP", "requests", "of", "the", "enumeration", "data" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L632-L638
train
mesosphere/mesos-dns
resolver/resolver.go
RestAXFR
func (res *Resolver) RestAXFR(req *restful.Request, resp *restful.Response) { records := res.records() AXFRRecords := models.AXFRRecords{ SRVs: records.SRVs.ToAXFRResourceRecordSet(), As: records.As.ToAXFRResourceRecordSet(), AAAAs: records.AAAAs.ToAXFRResourceRecordSet(), } AXFR := models.AXFR{ Records: AXFRRecords, Serial: atomic.LoadUint32(&res.config.SOASerial), Mname: res.config.SOAMname, Rname: res.config.SOARname, TTL: res.config.TTL, RefreshSeconds: res.config.RefreshSeconds, Domain: res.config.Domain, } if err := resp.WriteAsJson(AXFR); err != nil { logging.Error.Println(err) } }
go
func (res *Resolver) RestAXFR(req *restful.Request, resp *restful.Response) { records := res.records() AXFRRecords := models.AXFRRecords{ SRVs: records.SRVs.ToAXFRResourceRecordSet(), As: records.As.ToAXFRResourceRecordSet(), AAAAs: records.AAAAs.ToAXFRResourceRecordSet(), } AXFR := models.AXFR{ Records: AXFRRecords, Serial: atomic.LoadUint32(&res.config.SOASerial), Mname: res.config.SOAMname, Rname: res.config.SOARname, TTL: res.config.TTL, RefreshSeconds: res.config.RefreshSeconds, Domain: res.config.Domain, } if err := resp.WriteAsJson(AXFR); err != nil { logging.Error.Println(err) } }
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// RestAXFR handles HTTP requests to turn the zone into a transferable format
[ "RestAXFR", "handles", "HTTP", "requests", "to", "turn", "the", "zone", "into", "a", "transferable", "format" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L641-L662
train
mesosphere/mesos-dns
resolver/resolver.go
RestVersion
func (res *Resolver) RestVersion(req *restful.Request, resp *restful.Response) { err := resp.WriteAsJson(map[string]string{ "Service": "Mesos-DNS", "Version": res.version, "URL": "https://github.com/mesosphere/mesos-dns", }) if err != nil { logging.Error.Println(err) } }
go
func (res *Resolver) RestVersion(req *restful.Request, resp *restful.Response) { err := resp.WriteAsJson(map[string]string{ "Service": "Mesos-DNS", "Version": res.version, "URL": "https://github.com/mesosphere/mesos-dns", }) if err != nil { logging.Error.Println(err) } }
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// RestVersion handles HTTP requests of Mesos-DNS version.
[ "RestVersion", "handles", "HTTP", "requests", "of", "Mesos", "-", "DNS", "version", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L665-L674
train
mesosphere/mesos-dns
resolver/resolver.go
RestHost
func (res *Resolver) RestHost(req *restful.Request, resp *restful.Response) { host := req.PathParameter("host") // clean up host name dom := strings.ToLower(cleanWild(host)) if dom[len(dom)-1] != '.' { dom += "." } rs := res.records() type record struct { Host string `json:"host"` IP string `json:"ip"` } aRRs := rs.As[dom] aaaaRRs := rs.AAAAs[dom] records := make([]record, 0, len(aRRs)+len(aaaaRRs)) for ip := range aRRs { records = append(records, record{dom, ip}) } for ip := range aaaaRRs { records = append(records, record{dom, ip}) } if len(records) == 0 { records = append(records, record{}) } if err := resp.WriteAsJson(records); err != nil { logging.Error.Println(err) } stats(dom, res.config.Domain+".", len(aRRs) > 0) }
go
func (res *Resolver) RestHost(req *restful.Request, resp *restful.Response) { host := req.PathParameter("host") // clean up host name dom := strings.ToLower(cleanWild(host)) if dom[len(dom)-1] != '.' { dom += "." } rs := res.records() type record struct { Host string `json:"host"` IP string `json:"ip"` } aRRs := rs.As[dom] aaaaRRs := rs.AAAAs[dom] records := make([]record, 0, len(aRRs)+len(aaaaRRs)) for ip := range aRRs { records = append(records, record{dom, ip}) } for ip := range aaaaRRs { records = append(records, record{dom, ip}) } if len(records) == 0 { records = append(records, record{}) } if err := resp.WriteAsJson(records); err != nil { logging.Error.Println(err) } stats(dom, res.config.Domain+".", len(aRRs) > 0) }
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// RestHost handles HTTP requests of DNS A records of the given host.
[ "RestHost", "handles", "HTTP", "requests", "of", "DNS", "A", "records", "of", "the", "given", "host", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L677-L710
train
mesosphere/mesos-dns
resolver/resolver.go
RestPorts
func (res *Resolver) RestPorts(req *restful.Request, resp *restful.Response) { err := resp.WriteErrorString(http.StatusNotImplemented, "To be implemented...") if err != nil { logging.Error.Println(err) } }
go
func (res *Resolver) RestPorts(req *restful.Request, resp *restful.Response) { err := resp.WriteErrorString(http.StatusNotImplemented, "To be implemented...") if err != nil { logging.Error.Println(err) } }
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// RestPorts is an HTTP handler which is currently not implemented.
[ "RestPorts", "is", "an", "HTTP", "handler", "which", "is", "currently", "not", "implemented", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L727-L732
train
mesosphere/mesos-dns
resolver/resolver.go
RestService
func (res *Resolver) RestService(req *restful.Request, resp *restful.Response) { service := req.PathParameter("service") // clean up service name dom := strings.ToLower(cleanWild(service)) if dom[len(dom)-1] != '.' { dom += "." } rs := res.records() type record struct { Service string `json:"service"` Host string `json:"host"` IP string `json:"ip"` Port string `json:"port"` } srvRRs := rs.SRVs[dom] records := make([]record, 0, len(srvRRs)) for s := range srvRRs { host, port, err := net.SplitHostPort(s) if err != nil { logging.Error.Println(err) continue } if aR, aOk := rs.As.First(host); aOk { records = append(records, record{service, host, aR, port}) } if aaaaR, aaaaOk := rs.AAAAs.First(host); aaaaOk { records = append(records, record{service, host, aaaaR, port}) } } if len(records) == 0 { records = append(records, record{}) } if err := resp.WriteAsJson(records); err != nil { logging.Error.Println(err) } stats(dom, res.config.Domain+".", len(srvRRs) > 0) }
go
func (res *Resolver) RestService(req *restful.Request, resp *restful.Response) { service := req.PathParameter("service") // clean up service name dom := strings.ToLower(cleanWild(service)) if dom[len(dom)-1] != '.' { dom += "." } rs := res.records() type record struct { Service string `json:"service"` Host string `json:"host"` IP string `json:"ip"` Port string `json:"port"` } srvRRs := rs.SRVs[dom] records := make([]record, 0, len(srvRRs)) for s := range srvRRs { host, port, err := net.SplitHostPort(s) if err != nil { logging.Error.Println(err) continue } if aR, aOk := rs.As.First(host); aOk { records = append(records, record{service, host, aR, port}) } if aaaaR, aaaaOk := rs.AAAAs.First(host); aaaaOk { records = append(records, record{service, host, aaaaR, port}) } } if len(records) == 0 { records = append(records, record{}) } if err := resp.WriteAsJson(records); err != nil { logging.Error.Println(err) } stats(dom, res.config.Domain+".", len(srvRRs) > 0) }
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// RestService handles HTTP requests of DNS SRV records for the given name.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L735-L776
train
mesosphere/mesos-dns
resolver/resolver.go
panicRecover
func panicRecover(f func(w dns.ResponseWriter, r *dns.Msg)) func(w dns.ResponseWriter, r *dns.Msg) { return func(w dns.ResponseWriter, r *dns.Msg) { defer func() { if rec := recover(); rec != nil { m := new(dns.Msg) m.SetRcode(r, 2) if err := w.WriteMsg(m); err != nil { logging.Error.Println(err) } logging.Error.Println(rec) } }() f(w, r) } }
go
func panicRecover(f func(w dns.ResponseWriter, r *dns.Msg)) func(w dns.ResponseWriter, r *dns.Msg) { return func(w dns.ResponseWriter, r *dns.Msg) { defer func() { if rec := recover(); rec != nil { m := new(dns.Msg) m.SetRcode(r, 2) if err := w.WriteMsg(m); err != nil { logging.Error.Println(err) } logging.Error.Println(rec) } }() f(w, r) } }
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// panicRecover catches any panics from the resolvers and sets an error // code of server failure
[ "panicRecover", "catches", "any", "panics", "from", "the", "resolvers", "and", "sets", "an", "error", "code", "of", "server", "failure" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L780-L794
train
mesosphere/mesos-dns
resolver/resolver.go
cleanWild
func cleanWild(name string) string { if strings.Contains(name, ".*") { return strings.Replace(name, ".*", "", -1) } return name }
go
func cleanWild(name string) string { if strings.Contains(name, ".*") { return strings.Replace(name, ".*", "", -1) } return name }
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// cleanWild strips any wildcards out thus mapping cleanly to the // original serviceName
[ "cleanWild", "strips", "any", "wildcards", "out", "thus", "mapping", "cleanly", "to", "the", "original", "serviceName" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/resolver/resolver.go#L798-L803
train
mesosphere/mesos-dns
urls/urls.go
With
func (b Builder) With(options ...Option) Builder { for i := range options { if options[i] != nil { options[i](&b) } } return b }
go
func (b Builder) With(options ...Option) Builder { for i := range options { if options[i] != nil { options[i](&b) } } return b }
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// With configures a net.URL via a Builder wrapper, returns the modified result
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/urls/urls.go#L17-L24
train
mesosphere/mesos-dns
httpcli/basic/basic.go
Register
func Register() { httpcli.Register(httpcli.AuthBasic, httpcli.DoerFactory(func(cm httpcli.ConfigMap, c *http.Client) (doer httpcli.Doer) { obj := cm.FindOrPanic(httpcli.AuthBasic) config, ok := obj.(Credentials) if !ok { panic(fmt.Errorf("expected Credentials instead of %#+v", obj)) } validate(config) if c != nil { doer = Doer(c, config) } return })) }
go
func Register() { httpcli.Register(httpcli.AuthBasic, httpcli.DoerFactory(func(cm httpcli.ConfigMap, c *http.Client) (doer httpcli.Doer) { obj := cm.FindOrPanic(httpcli.AuthBasic) config, ok := obj.(Credentials) if !ok { panic(fmt.Errorf("expected Credentials instead of %#+v", obj)) } validate(config) if c != nil { doer = Doer(c, config) } return })) }
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// Register registers a DoerFactory for HTTP Basic authentication
[ "Register", "registers", "a", "DoerFactory", "for", "HTTP", "Basic", "authentication" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/basic/basic.go#L11-L24
train
mesosphere/mesos-dns
httpcli/basic/basic.go
Doer
func Doer(client httpcli.Doer, credentials Credentials) httpcli.Doer { return httpcli.DoerFunc(func(req *http.Request) (*http.Response, error) { req.SetBasicAuth(credentials.Principal, credentials.Secret) return client.Do(req) }) }
go
func Doer(client httpcli.Doer, credentials Credentials) httpcli.Doer { return httpcli.DoerFunc(func(req *http.Request) (*http.Response, error) { req.SetBasicAuth(credentials.Principal, credentials.Secret) return client.Do(req) }) }
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// Doer wraps an HTTP transactor given basic credentials
[ "Doer", "wraps", "an", "HTTP", "transactor", "given", "basic", "credentials" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/basic/basic.go#L33-L38
train
mesosphere/mesos-dns
httpcli/config.go
ToConfigMap
func (cmo ConfigMapOptions) ToConfigMap() (m ConfigMap) { m = make(ConfigMap) for _, opt := range cmo { if opt != nil { opt(m) } } if len(m) == 0 { m = nil } return m }
go
func (cmo ConfigMapOptions) ToConfigMap() (m ConfigMap) { m = make(ConfigMap) for _, opt := range cmo { if opt != nil { opt(m) } } if len(m) == 0 { m = nil } return m }
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// ToConfigMap generates a ConfigMap from the given options. If no map entries are generated // then a nil ConfigMap is returned.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/config.go#L63-L74
train
mesosphere/mesos-dns
httpcli/config.go
FindOrPanic
func (cm ConfigMap) FindOrPanic(am AuthMechanism) interface{} { obj, ok := cm[am] if !ok { panic(ErrMissingConfiguration) } return obj }
go
func (cm ConfigMap) FindOrPanic(am AuthMechanism) interface{} { obj, ok := cm[am] if !ok { panic(ErrMissingConfiguration) } return obj }
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// FindOrPanic returns the mapped configuration for the given auth mechanism or else panics
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/config.go#L77-L83
train
mesosphere/mesos-dns
httpcli/config.go
Register
func Register(am AuthMechanism, df DoerFactory) { registry.Lock() defer registry.Unlock() if _, ok := registry.factories[am]; ok { panic(ErrDuplicateAuthRegistration) } registry.factories[am] = df }
go
func Register(am AuthMechanism, df DoerFactory) { registry.Lock() defer registry.Unlock() if _, ok := registry.factories[am]; ok { panic(ErrDuplicateAuthRegistration) } registry.factories[am] = df }
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// Register associates an AuthMechanism with a DoerFactory
[ "Register", "associates", "an", "AuthMechanism", "with", "a", "DoerFactory" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/config.go#L86-L94
train
mesosphere/mesos-dns
httpcli/config.go
Validate
func Validate(am AuthMechanism, cm ConfigMap) (err error) { df, ok := factoryFor(am) if !ok { err = ErrUnregisteredFactory } else { defer func() { // recover from a factory panic if v := recover(); v != nil { if verr, ok := v.(error); ok { err = verr } else { panic(v) // unexpected, forward this up the stack } } }() if shouldBeNil := df(cm, nil); shouldBeNil != nil { err = ErrIllegalDoerFactoryImplementation } } return }
go
func Validate(am AuthMechanism, cm ConfigMap) (err error) { df, ok := factoryFor(am) if !ok { err = ErrUnregisteredFactory } else { defer func() { // recover from a factory panic if v := recover(); v != nil { if verr, ok := v.(error); ok { err = verr } else { panic(v) // unexpected, forward this up the stack } } }() if shouldBeNil := df(cm, nil); shouldBeNil != nil { err = ErrIllegalDoerFactoryImplementation } } return }
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// Validate checks that the given AuthMechainsm and ConfigMap are compatible with the // registered set of DoerFactory instances.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/config.go#L113-L133
train
mesosphere/mesos-dns
logging/logging.go
String
func (lc *LogCounter) String() string { return strconv.FormatUint(atomic.LoadUint64(&lc.value), 10) }
go
func (lc *LogCounter) String() string { return strconv.FormatUint(atomic.LoadUint64(&lc.value), 10) }
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// String returns a string represention of the counter.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/logging/logging.go#L43-L45
train
mesosphere/mesos-dns
logging/logging.go
SetupLogs
func SetupLogs() { // initialize logging flags if glog.V(2) { VeryVerboseFlag = true } else if glog.V(1) { VerboseFlag = true } logopts := log.Ldate | log.Ltime | log.Lshortfile if VerboseFlag { Verbose = log.New(os.Stdout, "VERBOSE: ", logopts) VeryVerbose = log.New(ioutil.Discard, "VERY VERBOSE: ", logopts) } else if VeryVerboseFlag { Verbose = log.New(os.Stdout, "VERY VERBOSE: ", logopts) VeryVerbose = Verbose } else { Verbose = log.New(ioutil.Discard, "VERBOSE: ", logopts) VeryVerbose = log.New(ioutil.Discard, "VERY VERBOSE: ", logopts) } Error = log.New(os.Stderr, "ERROR: ", logopts) }
go
func SetupLogs() { // initialize logging flags if glog.V(2) { VeryVerboseFlag = true } else if glog.V(1) { VerboseFlag = true } logopts := log.Ldate | log.Ltime | log.Lshortfile if VerboseFlag { Verbose = log.New(os.Stdout, "VERBOSE: ", logopts) VeryVerbose = log.New(ioutil.Discard, "VERY VERBOSE: ", logopts) } else if VeryVerboseFlag { Verbose = log.New(os.Stdout, "VERY VERBOSE: ", logopts) VeryVerbose = Verbose } else { Verbose = log.New(ioutil.Discard, "VERBOSE: ", logopts) VeryVerbose = log.New(ioutil.Discard, "VERY VERBOSE: ", logopts) } Error = log.New(os.Stderr, "ERROR: ", logopts) }
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// SetupLogs provides the following logs // Verbose = optional verbosity // VeryVerbose = optional verbosity // Error = stderr
[ "SetupLogs", "provides", "the", "following", "logs", "Verbose", "=", "optional", "verbosity", "VeryVerbose", "=", "optional", "verbosity", "Error", "=", "stderr" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/logging/logging.go#L82-L104
train
mesosphere/mesos-dns
detect/masters.go
NewMasters
func NewMasters(masters []string, changed chan<- []string) *Masters { return &Masters{ masters: append([]string{""}, masters...), changed: changed, } }
go
func NewMasters(masters []string, changed chan<- []string) *Masters { return &Masters{ masters: append([]string{""}, masters...), changed: changed, } }
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// NewMasters returns a new Masters detector with the given initial masters // and the given changed channel to which master changes will be sent to. // Initially the leader is unknown which is represented by // setting the first item of the sent masters slice to be empty.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/detect/masters.go#L36-L41
train
mesosphere/mesos-dns
detect/masters.go
OnMasterChanged
func (ms *Masters) OnMasterChanged(leader *mesos.MasterInfo) { logging.VeryVerbose.Println("Updated leader: ", leader) ms.masters = ordered(masterAddr(leader), ms.masters[1:]) emit(ms.changed, ms.masters) }
go
func (ms *Masters) OnMasterChanged(leader *mesos.MasterInfo) { logging.VeryVerbose.Println("Updated leader: ", leader) ms.masters = ordered(masterAddr(leader), ms.masters[1:]) emit(ms.changed, ms.masters) }
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// OnMasterChanged sets the given MasterInfo as the current leader // leaving the remaining masters unchanged and emits the current masters state. // It implements the detector.MasterChanged interface.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/detect/masters.go#L46-L50
train
mesosphere/mesos-dns
detect/masters.go
UpdatedMasters
func (ms *Masters) UpdatedMasters(infos []*mesos.MasterInfo) { logging.VeryVerbose.Println("Updated masters: ", infos) masters := make([]string, 0, len(infos)) for _, info := range infos { if addr := masterAddr(info); addr != "" { masters = append(masters, addr) } } ms.masters = ordered(ms.masters[0], masters) emit(ms.changed, ms.masters) }
go
func (ms *Masters) UpdatedMasters(infos []*mesos.MasterInfo) { logging.VeryVerbose.Println("Updated masters: ", infos) masters := make([]string, 0, len(infos)) for _, info := range infos { if addr := masterAddr(info); addr != "" { masters = append(masters, addr) } } ms.masters = ordered(ms.masters[0], masters) emit(ms.changed, ms.masters) }
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// UpdatedMasters sets the given slice of MasterInfo as the current remaining masters // leaving the current leader unchanged and emits the current masters state. // It implements the detector.AllMasters interface.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/detect/masters.go#L55-L65
train
mesosphere/mesos-dns
detect/masters.go
ordered
func ordered(leader string, masters []string) []string { ms := append(make([]string, 0, len(masters)+1), leader) for _, m := range masters { if m != leader { ms = append(ms, m) } } return ms }
go
func ordered(leader string, masters []string) []string { ms := append(make([]string, 0, len(masters)+1), leader) for _, m := range masters { if m != leader { ms = append(ms, m) } } return ms }
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// ordered returns a slice of masters with the given leader in the first position
[ "ordered", "returns", "a", "slice", "of", "masters", "with", "the", "given", "leader", "in", "the", "first", "position" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/detect/masters.go#L72-L80
train
mesosphere/mesos-dns
exchanger/forwarder.go
Forward
func (f Forwarder) Forward(m *dns.Msg, proto string) (*dns.Msg, error) { return f(m, proto) }
go
func (f Forwarder) Forward(m *dns.Msg, proto string) (*dns.Msg, error) { return f(m, proto) }
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// Forward is an utility method that calls f itself.
[ "Forward", "is", "an", "utility", "method", "that", "calls", "f", "itself", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/exchanger/forwarder.go#L15-L17
train
mesosphere/mesos-dns
httpcli/iam/iam.go
Doer
func Doer(client *http.Client, config Config) httpcli.Doer { return httpcli.DoerFunc(func(req *http.Request) (*http.Response, error) { // TODO if we still have a valid token, try using it first token := jwt.New(jwt.SigningMethodRS256) token.Claims["uid"] = config.ID token.Claims["exp"] = time.Now().Add(time.Hour).Unix() // SignedString will treat secret as PEM-encoded key tokenStr, err := token.SignedString([]byte(config.PrivateKey)) if err != nil { return nil, err } authReq := struct { UID string `json:"uid"` Token string `json:"token,omitempty"` }{ UID: config.ID, Token: tokenStr, } b, err := json.Marshal(authReq) if err != nil { return nil, err } authBody := bytes.NewBuffer(b) resp, err := client.Post(config.LoginEndpoint, "application/json", authBody) if err != nil { return nil, err } defer errorutil.Ignore(resp.Body.Close) if resp.StatusCode != 200 { return nil, httpcli.ErrAuthFailed } var authResp struct { Token string `json:"token"` } err = json.NewDecoder(resp.Body).Decode(&authResp) if err != nil { return nil, err } if req.Header == nil { req.Header = make(http.Header) } req.Header.Set("Authorization", "token="+authResp.Token) return client.Do(req) }) }
go
func Doer(client *http.Client, config Config) httpcli.Doer { return httpcli.DoerFunc(func(req *http.Request) (*http.Response, error) { // TODO if we still have a valid token, try using it first token := jwt.New(jwt.SigningMethodRS256) token.Claims["uid"] = config.ID token.Claims["exp"] = time.Now().Add(time.Hour).Unix() // SignedString will treat secret as PEM-encoded key tokenStr, err := token.SignedString([]byte(config.PrivateKey)) if err != nil { return nil, err } authReq := struct { UID string `json:"uid"` Token string `json:"token,omitempty"` }{ UID: config.ID, Token: tokenStr, } b, err := json.Marshal(authReq) if err != nil { return nil, err } authBody := bytes.NewBuffer(b) resp, err := client.Post(config.LoginEndpoint, "application/json", authBody) if err != nil { return nil, err } defer errorutil.Ignore(resp.Body.Close) if resp.StatusCode != 200 { return nil, httpcli.ErrAuthFailed } var authResp struct { Token string `json:"token"` } err = json.NewDecoder(resp.Body).Decode(&authResp) if err != nil { return nil, err } if req.Header == nil { req.Header = make(http.Header) } req.Header.Set("Authorization", "token="+authResp.Token) return client.Do(req) }) }
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// Doer wraps an HTTP transactor given an IAM configuration
[ "Doer", "wraps", "an", "HTTP", "transactor", "given", "an", "IAM", "configuration" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/httpcli/iam/iam.go#L38-L88
train
mesosphere/mesos-dns
records/labels/labels.go
DomainFrag
func DomainFrag(name, sep string, label Func) string { var labels []string for _, part := range strings.Split(name, sep) { if lab := label(part); lab != "" { labels = append(labels, lab) } } return strings.Join(labels, sep) }
go
func DomainFrag(name, sep string, label Func) string { var labels []string for _, part := range strings.Split(name, sep) { if lab := label(part); lab != "" { labels = append(labels, lab) } } return strings.Join(labels, sep) }
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// DomainFrag mangles the given name in order to produce a valid domain fragment. // A valid domain fragment will consist of one or more host name labels // concatenated by the given separator.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/labels/labels.go#L14-L22
train
mesosphere/mesos-dns
records/labels/labels.go
label
func label(name []byte, maxlen int, left, right string) []byte { return trimCut(bytes.Map(mapping, name), maxlen, left, right) }
go
func label(name []byte, maxlen int, left, right string) []byte { return trimCut(bytes.Map(mapping, name), maxlen, left, right) }
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// label computes a label from the given name with maxlen length and the // left and right cutsets trimmed from their respective ends.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/labels/labels.go#L41-L43
train
mesosphere/mesos-dns
records/labels/labels.go
mapping
func mapping(r rune) rune { switch { case r >= 'A' && r <= 'Z': return r - ('A' - 'a') case r >= 'a' && r <= 'z': fallthrough case r >= '0' && r <= '9': return r case r == '-' || r == '.' || r == '_': return '-' default: return -1 } }
go
func mapping(r rune) rune { switch { case r >= 'A' && r <= 'Z': return r - ('A' - 'a') case r >= 'a' && r <= 'z': fallthrough case r >= '0' && r <= '9': return r case r == '-' || r == '.' || r == '_': return '-' default: return -1 } }
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// mapping maps a given rune to its valid DNS label counterpart.
[ "mapping", "maps", "a", "given", "rune", "to", "its", "valid", "DNS", "label", "counterpart", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/labels/labels.go#L46-L59
train
mesosphere/mesos-dns
records/state/state.go
Ports
func (r Resources) Ports() []string { if r.PortRanges == "" || r.PortRanges == "[]" { return []string{} } rhs := strings.Split(r.PortRanges, "[")[1] lhs := strings.Split(rhs, "]")[0] yports := []string{} mports := strings.Split(lhs, ",") for _, port := range mports { tmp := strings.TrimSpace(port) pz := strings.Split(tmp, "-") lo, err := strconv.Atoi(pz[0]) if err != nil { logging.Error.Println(err) continue } hi, err := strconv.Atoi(pz[1]) if err != nil { logging.Error.Println(err) continue } for t := lo; t <= hi; t++ { yports = append(yports, strconv.Itoa(t)) } } return yports }
go
func (r Resources) Ports() []string { if r.PortRanges == "" || r.PortRanges == "[]" { return []string{} } rhs := strings.Split(r.PortRanges, "[")[1] lhs := strings.Split(rhs, "]")[0] yports := []string{} mports := strings.Split(lhs, ",") for _, port := range mports { tmp := strings.TrimSpace(port) pz := strings.Split(tmp, "-") lo, err := strconv.Atoi(pz[0]) if err != nil { logging.Error.Println(err) continue } hi, err := strconv.Atoi(pz[1]) if err != nil { logging.Error.Println(err) continue } for t := lo; t <= hi; t++ { yports = append(yports, strconv.Itoa(t)) } } return yports }
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// Ports returns a slice of individual ports expanded from PortRanges.
[ "Ports", "returns", "a", "slice", "of", "individual", "ports", "expanded", "from", "PortRanges", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/state.go#L19-L49
train
mesosphere/mesos-dns
records/state/state.go
IP
func (t *Task) IP(srcs ...string) string { if ips := t.IPs(srcs...); len(ips) > 0 { return ips[0].String() } return "" }
go
func (t *Task) IP(srcs ...string) string { if ips := t.IPs(srcs...); len(ips) > 0 { return ips[0].String() } return "" }
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// IP returns the first Task IP found in the given sources.
[ "IP", "returns", "the", "first", "Task", "IP", "found", "in", "the", "given", "sources", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/state.go#L106-L111
train
mesosphere/mesos-dns
records/state/state.go
IPs
func (t *Task) IPs(srcs ...string) (ips []net.IP) { if t == nil { return nil } for i := range srcs { if src, ok := sources[srcs[i]]; ok { for _, srcIP := range src(t) { if ip := net.ParseIP(srcIP); len(ip) > 0 { ips = append(ips, ip) } } } } return ips }
go
func (t *Task) IPs(srcs ...string) (ips []net.IP) { if t == nil { return nil } for i := range srcs { if src, ok := sources[srcs[i]]; ok { for _, srcIP := range src(t) { if ip := net.ParseIP(srcIP); len(ip) > 0 { ips = append(ips, ip) } } } } return ips }
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// IPs returns a slice of IPs sourced from the given sources with ascending // priority.
[ "IPs", "returns", "a", "slice", "of", "IPs", "sourced", "from", "the", "given", "sources", "with", "ascending", "priority", "." ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/state.go#L115-L129
train
mesosphere/mesos-dns
records/state/state.go
statusIPs
func statusIPs(st []Status, src func(*Status) []string) []string { // the state we extract from mesos makes no guarantees re: the order // of the task statuses so we should check the timestamps to avoid problems // down the line. we can't rely on seeing the same sequence. (@joris) // https://github.com/apache/mesos/blob/0.24.0/src/slave/slave.cpp#L5226-L5238 ts, j := -1.0, -1 for i := range st { if st[i].State == "TASK_RUNNING" && st[i].Timestamp > ts { ts, j = st[i].Timestamp, i } } if j >= 0 { return src(&st[j]) } return nil }
go
func statusIPs(st []Status, src func(*Status) []string) []string { // the state we extract from mesos makes no guarantees re: the order // of the task statuses so we should check the timestamps to avoid problems // down the line. we can't rely on seeing the same sequence. (@joris) // https://github.com/apache/mesos/blob/0.24.0/src/slave/slave.cpp#L5226-L5238 ts, j := -1.0, -1 for i := range st { if st[i].State == "TASK_RUNNING" && st[i].Timestamp > ts { ts, j = st[i].Timestamp, i } } if j >= 0 { return src(&st[j]) } return nil }
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// statusIPs returns the latest running status IPs extracted with the given src
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/state.go#L186-L201
train
mesosphere/mesos-dns
records/state/state.go
HostPort
func (f Framework) HostPort() (string, string) { if f.PID.UPID != nil { return f.PID.Host, f.PID.Port } return f.Hostname, "" }
go
func (f Framework) HostPort() (string, string) { if f.PID.UPID != nil { return f.PID.Host, f.PID.Port } return f.Hostname, "" }
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// HostPort returns the hostname and port where a framework's scheduler is // listening on.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/state.go#L227-L232
train
mesosphere/mesos-dns
records/state/state.go
UnmarshalJSON
func (p *PID) UnmarshalJSON(data []byte) (err error) { p.UPID, err = upid.Parse(string(bytes.Trim(data, `" `))) return err }
go
func (p *PID) UnmarshalJSON(data []byte) (err error) { p.UPID, err = upid.Parse(string(bytes.Trim(data, `" `))) return err }
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// UnmarshalJSON implements the json.Unmarshaler interface for PIDs.
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/state/state.go#L245-L248
train
mesosphere/mesos-dns
records/config.go
NewConfig
func NewConfig() Config { return Config{ ZkDetectionTimeout: 30, RefreshSeconds: 60, TTL: 60, SRVRecordDefaultWeight: 1, Domain: "mesos", Port: 53, Timeout: 5, StateTimeoutSeconds: 300, SOARname: "root.ns1.mesos", SOAMname: "ns1.mesos", SOARefresh: 60, SOARetry: 600, SOAExpire: 86400, SOAMinttl: 60, ZoneResolvers: map[string][]string{}, Resolvers: []string{"8.8.8.8"}, Listener: "0.0.0.0", HTTPListener: "0.0.0.0", HTTPPort: 8123, DNSOn: true, HTTPOn: true, ExternalOn: true, SetTruncateBit: true, RecurseOn: true, IPSources: []string{"netinfo", "mesos", "host"}, EnumerationOn: true, MesosAuthentication: httpcli.AuthNone, } }
go
func NewConfig() Config { return Config{ ZkDetectionTimeout: 30, RefreshSeconds: 60, TTL: 60, SRVRecordDefaultWeight: 1, Domain: "mesos", Port: 53, Timeout: 5, StateTimeoutSeconds: 300, SOARname: "root.ns1.mesos", SOAMname: "ns1.mesos", SOARefresh: 60, SOARetry: 600, SOAExpire: 86400, SOAMinttl: 60, ZoneResolvers: map[string][]string{}, Resolvers: []string{"8.8.8.8"}, Listener: "0.0.0.0", HTTPListener: "0.0.0.0", HTTPPort: 8123, DNSOn: true, HTTPOn: true, ExternalOn: true, SetTruncateBit: true, RecurseOn: true, IPSources: []string{"netinfo", "mesos", "host"}, EnumerationOn: true, MesosAuthentication: httpcli.AuthNone, } }
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// NewConfig return the default config of the resolver
[ "NewConfig", "return", "the", "default", "config", "of", "the", "resolver" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/config.go#L114-L144
train
mesosphere/mesos-dns
records/config.go
SetConfig
func SetConfig(cjson string) Config { c, err := readConfig(cjson) if err != nil { logging.Error.Fatal(err) } logging.Verbose.Printf("config loaded from %q", c.File) // validate and complete configuration file err = validateEnabledServices(c) if err != nil { logging.Error.Fatalf("service validation failed: %v", err) } if err = validateMasters(c.Masters); err != nil { logging.Error.Fatal(err) } c.initResolvers() if err = validateIPSources(c.IPSources); err != nil { logging.Error.Fatalf("IPSources validation failed: %v", err) } if c.StateTimeoutSeconds <= 0 { logging.Error.Fatal("Invalid HTTP Timeout: ", c.StateTimeoutSeconds) } c.Domain = strings.ToLower(c.Domain) err = validateDomainName(c.Domain) if err != nil { logging.Error.Fatalf("%s is not a valid domain name", c.Domain) } c.initSOA() c.initCertificates() c.initMesosAuthentication() c.log() return *c }
go
func SetConfig(cjson string) Config { c, err := readConfig(cjson) if err != nil { logging.Error.Fatal(err) } logging.Verbose.Printf("config loaded from %q", c.File) // validate and complete configuration file err = validateEnabledServices(c) if err != nil { logging.Error.Fatalf("service validation failed: %v", err) } if err = validateMasters(c.Masters); err != nil { logging.Error.Fatal(err) } c.initResolvers() if err = validateIPSources(c.IPSources); err != nil { logging.Error.Fatalf("IPSources validation failed: %v", err) } if c.StateTimeoutSeconds <= 0 { logging.Error.Fatal("Invalid HTTP Timeout: ", c.StateTimeoutSeconds) } c.Domain = strings.ToLower(c.Domain) err = validateDomainName(c.Domain) if err != nil { logging.Error.Fatalf("%s is not a valid domain name", c.Domain) } c.initSOA() c.initCertificates() c.initMesosAuthentication() c.log() return *c }
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// SetConfig instantiates a Config struct read in from config.json
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65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/config.go#L147-L185
train
mesosphere/mesos-dns
records/config.go
nonLocalAddies
func nonLocalAddies(cservers []string) []string { bad := localAddies() good := []string{} for i := 0; i < len(cservers); i++ { local := false for x := 0; x < len(bad); x++ { if cservers[i] == bad[x] { local = true } } if !local { good = append(good, cservers[i]) } } return good }
go
func nonLocalAddies(cservers []string) []string { bad := localAddies() good := []string{} for i := 0; i < len(cservers); i++ { local := false for x := 0; x < len(bad); x++ { if cservers[i] == bad[x] { local = true } } if !local { good = append(good, cservers[i]) } } return good }
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// Returns non-local nameserver entries
[ "Returns", "non", "-", "local", "nameserver", "entries" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/config.go#L384-L403
train
mesosphere/mesos-dns
records/config.go
localAddies
func localAddies() []string { addies, err := net.InterfaceAddrs() if err != nil { logging.Error.Println(err) } bad := []string{} for i := 0; i < len(addies); i++ { ip, _, err := net.ParseCIDR(addies[i].String()) if err != nil { logging.Error.Println(err) } // The servers in cservers above could include // ipv6, so we should include local ipv6 for // that filtering if t4 := ip.To4(); t4 != nil { bad = append(bad, t4.String()) } else if t6 := ip.To16(); t6 != nil { bad = append(bad, t6.String()) } } return bad }
go
func localAddies() []string { addies, err := net.InterfaceAddrs() if err != nil { logging.Error.Println(err) } bad := []string{} for i := 0; i < len(addies); i++ { ip, _, err := net.ParseCIDR(addies[i].String()) if err != nil { logging.Error.Println(err) } // The servers in cservers above could include // ipv6, so we should include local ipv6 for // that filtering if t4 := ip.To4(); t4 != nil { bad = append(bad, t4.String()) } else if t6 := ip.To16(); t6 != nil { bad = append(bad, t6.String()) } } return bad }
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// Returns an array of local ipv4 addresses
[ "Returns", "an", "array", "of", "local", "ipv4", "addresses" ]
65cb06fff5493c3caa8fc00d26e89fbedab9d95e
https://github.com/mesosphere/mesos-dns/blob/65cb06fff5493c3caa8fc00d26e89fbedab9d95e/records/config.go#L406-L430
train
libp2p/go-reuseport
interface.go
Listen
func Listen(network, address string) (net.Listener, error) { return listenConfig.Listen(context.Background(), network, address) }
go
func Listen(network, address string) (net.Listener, error) { return listenConfig.Listen(context.Background(), network, address) }
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// Listen listens at the given network and address. see net.Listen // Returns a net.Listener created from a file discriptor for a socket // with SO_REUSEPORT and SO_REUSEADDR option set.
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b72b23b78b80078df1a7991f6ca39942cb8cc5e1
https://github.com/libp2p/go-reuseport/blob/b72b23b78b80078df1a7991f6ca39942cb8cc5e1/interface.go#L40-L42
train
libp2p/go-reuseport
interface.go
ListenPacket
func ListenPacket(network, address string) (net.PacketConn, error) { return listenConfig.ListenPacket(context.Background(), network, address) }
go
func ListenPacket(network, address string) (net.PacketConn, error) { return listenConfig.ListenPacket(context.Background(), network, address) }
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// ListenPacket listens at the given network and address. see net.ListenPacket // Returns a net.Listener created from a file discriptor for a socket // with SO_REUSEPORT and SO_REUSEADDR option set.
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b72b23b78b80078df1a7991f6ca39942cb8cc5e1
https://github.com/libp2p/go-reuseport/blob/b72b23b78b80078df1a7991f6ca39942cb8cc5e1/interface.go#L47-L49
train
libp2p/go-reuseport
interface.go
Dial
func Dial(network, laddr, raddr string) (net.Conn, error) { nla, err := ResolveAddr(network, laddr) if err != nil { return nil, errors.Wrap(err, "resolving local addr") } d := net.Dialer{ Control: Control, LocalAddr: nla, } return d.Dial(network, raddr) }
go
func Dial(network, laddr, raddr string) (net.Conn, error) { nla, err := ResolveAddr(network, laddr) if err != nil { return nil, errors.Wrap(err, "resolving local addr") } d := net.Dialer{ Control: Control, LocalAddr: nla, } return d.Dial(network, raddr) }
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// Dial dials the given network and address. see net.Dialer.Dial // Returns a net.Conn created from a file descriptor for a socket // with SO_REUSEPORT and SO_REUSEADDR option set.
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b72b23b78b80078df1a7991f6ca39942cb8cc5e1
https://github.com/libp2p/go-reuseport/blob/b72b23b78b80078df1a7991f6ca39942cb8cc5e1/interface.go#L54-L64
train
etcd-io/gofail
runtime/failpoint.go
Acquire
func (fp *Failpoint) Acquire() (interface{}, error) { fp.mu.RLock() if fp.t == nil { fp.mu.RUnlock() return nil, ErrDisabled } v, err := fp.t.eval() if v == nil { err = ErrDisabled } if err != nil { fp.mu.RUnlock() } return v, err }
go
func (fp *Failpoint) Acquire() (interface{}, error) { fp.mu.RLock() if fp.t == nil { fp.mu.RUnlock() return nil, ErrDisabled } v, err := fp.t.eval() if v == nil { err = ErrDisabled } if err != nil { fp.mu.RUnlock() } return v, err }
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// Acquire gets evalutes the failpoint terms; if the failpoint // is active, it will return a value. Otherwise, returns a non-nil error.
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51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/runtime/failpoint.go#L35-L49
train
etcd-io/gofail
runtime/failpoint.go
BadType
func (fp *Failpoint) BadType(v interface{}, t string) { fmt.Printf("failpoint: %q got value %v of type \"%T\" but expected type %q\n", fp.t.fpath, v, v, t) }
go
func (fp *Failpoint) BadType(v interface{}, t string) { fmt.Printf("failpoint: %q got value %v of type \"%T\" but expected type %q\n", fp.t.fpath, v, v, t) }
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// BadType is called when the failpoint evaluates to the wrong type.
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51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/runtime/failpoint.go#L55-L57
train
etcd-io/gofail
code/failpoint.go
newFailpoint
func newFailpoint(l string) (*Failpoint, error) { if !strings.HasPrefix(strings.TrimSpace(l), "// gofail:") { // not a failpoint return nil, nil } cmd := strings.SplitAfter(l, "// gofail:")[1] fields := strings.Fields(cmd) if len(fields) != 3 || fields[0] != "var" { return nil, fmt.Errorf("failpoint: malformed comment header %q", l) } return &Failpoint{name: fields[1], varType: fields[2], ws: strings.Split(l, "//")[0]}, nil }
go
func newFailpoint(l string) (*Failpoint, error) { if !strings.HasPrefix(strings.TrimSpace(l), "// gofail:") { // not a failpoint return nil, nil } cmd := strings.SplitAfter(l, "// gofail:")[1] fields := strings.Fields(cmd) if len(fields) != 3 || fields[0] != "var" { return nil, fmt.Errorf("failpoint: malformed comment header %q", l) } return &Failpoint{name: fields[1], varType: fields[2], ws: strings.Split(l, "//")[0]}, nil }
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// newFailpoint makes a new failpoint based on the a line containing a // failpoint comment header.
[ "newFailpoint", "makes", "a", "new", "failpoint", "based", "on", "the", "a", "line", "containing", "a", "failpoint", "comment", "header", "." ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/code/failpoint.go#L34-L45
train
etcd-io/gofail
code/failpoint.go
flush
func (fp *Failpoint) flush(dst io.Writer) error { if len(fp.code) == 0 { return fp.flushSingle(dst) } return fp.flushMulti(dst) }
go
func (fp *Failpoint) flush(dst io.Writer) error { if len(fp.code) == 0 { return fp.flushSingle(dst) } return fp.flushMulti(dst) }
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// flush writes the failpoint code to a buffer
[ "flush", "writes", "the", "failpoint", "code", "to", "a", "buffer" ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/code/failpoint.go#L48-L53
train
etcd-io/gofail
code/rewrite.go
ToFailpoints
func ToFailpoints(wdst io.Writer, rsrc io.Reader) (fps []*Failpoint, err error) { var curfp *Failpoint dst := bufio.NewWriter(wdst) defer func() { if err == nil && curfp != nil { err = curfp.flush(dst) } if err == nil { err = dst.Flush() } }() src := bufio.NewReader(rsrc) for err == nil { l, rerr := src.ReadString('\n') if curfp != nil { if strings.HasPrefix(strings.TrimSpace(l), "//") { if len(l) > 0 && l[len(l)-1] == '\n' { l = l[:len(l)-1] } curfp.code = append(curfp.code, strings.Replace(l, "//", "\t", 1)) continue } else { curfp.flush(dst) fps = append(fps, curfp) curfp = nil } } else if label := gofailLabel(l); label != "" { // expose gofail label l = label } else if curfp, err = newFailpoint(l); err != nil { return } else if curfp != nil { // found a new failpoint continue } if _, err = dst.WriteString(l); err != nil { return } if rerr == io.EOF { break } } return }
go
func ToFailpoints(wdst io.Writer, rsrc io.Reader) (fps []*Failpoint, err error) { var curfp *Failpoint dst := bufio.NewWriter(wdst) defer func() { if err == nil && curfp != nil { err = curfp.flush(dst) } if err == nil { err = dst.Flush() } }() src := bufio.NewReader(rsrc) for err == nil { l, rerr := src.ReadString('\n') if curfp != nil { if strings.HasPrefix(strings.TrimSpace(l), "//") { if len(l) > 0 && l[len(l)-1] == '\n' { l = l[:len(l)-1] } curfp.code = append(curfp.code, strings.Replace(l, "//", "\t", 1)) continue } else { curfp.flush(dst) fps = append(fps, curfp) curfp = nil } } else if label := gofailLabel(l); label != "" { // expose gofail label l = label } else if curfp, err = newFailpoint(l); err != nil { return } else if curfp != nil { // found a new failpoint continue } if _, err = dst.WriteString(l); err != nil { return } if rerr == io.EOF { break } } return }
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// ToFailpoints turns all gofail comments into failpoint code. Returns a list of // all failpoints it activated.
[ "ToFailpoints", "turns", "all", "gofail", "comments", "into", "failpoint", "code", ".", "Returns", "a", "list", "of", "all", "failpoints", "it", "activated", "." ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/code/rewrite.go#L26-L71
train
etcd-io/gofail
code/rewrite.go
ToComments
func ToComments(wdst io.Writer, rsrc io.Reader) (fps []*Failpoint, err error) { src := bufio.NewReader(rsrc) dst := bufio.NewWriter(wdst) ws := "" unmatchedBraces := 0 for err == nil { l, rerr := src.ReadString('\n') err = rerr lTrim := strings.TrimSpace(l) if unmatchedBraces > 0 { opening, closing := numBraces(l) unmatchedBraces += opening - closing if unmatchedBraces == 0 { // strip off badType footer lTrim = strings.Split(lTrim, "; __badType")[0] } s := ws + "//" + wsPrefix(l, ws)[1:] + lTrim + "\n" dst.WriteString(s) continue } isHdr := strings.Contains(l, ", __fpErr := __fp_") && strings.HasPrefix(lTrim, "if") if isHdr { ws = strings.Split(l, "i")[0] n := strings.Split(strings.Split(l, "__fp_")[1], ".")[0] t := strings.Split(strings.Split(l, ".(")[1], ")")[0] dst.WriteString(ws + "// gofail: var " + n + " " + t + "\n") if !strings.Contains(l, "; __badType") { // not single liner unmatchedBraces = 1 } fps = append(fps, &Failpoint{name: n, varType: t}) continue } if isLabel := strings.Contains(l, "\t/* gofail-label */"); isLabel { l = strings.Replace(l, "/* gofail-label */", "// gofail:", 1) } if _, werr := dst.WriteString(l); werr != nil { return fps, werr } } if err == io.EOF { err = nil } dst.Flush() return }
go
func ToComments(wdst io.Writer, rsrc io.Reader) (fps []*Failpoint, err error) { src := bufio.NewReader(rsrc) dst := bufio.NewWriter(wdst) ws := "" unmatchedBraces := 0 for err == nil { l, rerr := src.ReadString('\n') err = rerr lTrim := strings.TrimSpace(l) if unmatchedBraces > 0 { opening, closing := numBraces(l) unmatchedBraces += opening - closing if unmatchedBraces == 0 { // strip off badType footer lTrim = strings.Split(lTrim, "; __badType")[0] } s := ws + "//" + wsPrefix(l, ws)[1:] + lTrim + "\n" dst.WriteString(s) continue } isHdr := strings.Contains(l, ", __fpErr := __fp_") && strings.HasPrefix(lTrim, "if") if isHdr { ws = strings.Split(l, "i")[0] n := strings.Split(strings.Split(l, "__fp_")[1], ".")[0] t := strings.Split(strings.Split(l, ".(")[1], ")")[0] dst.WriteString(ws + "// gofail: var " + n + " " + t + "\n") if !strings.Contains(l, "; __badType") { // not single liner unmatchedBraces = 1 } fps = append(fps, &Failpoint{name: n, varType: t}) continue } if isLabel := strings.Contains(l, "\t/* gofail-label */"); isLabel { l = strings.Replace(l, "/* gofail-label */", "// gofail:", 1) } if _, werr := dst.WriteString(l); werr != nil { return fps, werr } } if err == io.EOF { err = nil } dst.Flush() return }
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// ToComments turns all failpoint code into GOFAIL comments. It returns // a list of all failpoints it deactivated.
[ "ToComments", "turns", "all", "failpoint", "code", "into", "GOFAIL", "comments", ".", "It", "returns", "a", "list", "of", "all", "failpoints", "it", "deactivated", "." ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/code/rewrite.go#L75-L124
train
etcd-io/gofail
code/rewrite.go
wsPrefix
func wsPrefix(l, wsPfx string) string { lws := "" if len(wsPfx) == 0 { lws = l } else { wsSplit := strings.SplitAfter(l, wsPfx) if len(wsSplit) < 2 { return "" } lws = strings.Join(wsSplit[1:], "") } for i, c := range lws { if !unicode.IsSpace(c) { return lws[:i] } } return lws }
go
func wsPrefix(l, wsPfx string) string { lws := "" if len(wsPfx) == 0 { lws = l } else { wsSplit := strings.SplitAfter(l, wsPfx) if len(wsSplit) < 2 { return "" } lws = strings.Join(wsSplit[1:], "") } for i, c := range lws { if !unicode.IsSpace(c) { return lws[:i] } } return lws }
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// wsPrefix computes the left padding of a line given a whitespace prefix.
[ "wsPrefix", "computes", "the", "left", "padding", "of", "a", "line", "given", "a", "whitespace", "prefix", "." ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/code/rewrite.go#L150-L167
train
etcd-io/gofail
runtime/runtime.go
Enable
func Enable(failpath, inTerms string) error { unlock, err := enableAndLock(failpath, inTerms) if unlock != nil { unlock() } return err }
go
func Enable(failpath, inTerms string) error { unlock, err := enableAndLock(failpath, inTerms) if unlock != nil { unlock() } return err }
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// Enable sets a failpoint to a given failpoint description.
[ "Enable", "sets", "a", "failpoint", "to", "a", "given", "failpoint", "description", "." ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/runtime/runtime.go#L56-L62
train
etcd-io/gofail
runtime/runtime.go
enableAndLock
func enableAndLock(failpath, inTerms string) (func(), error) { t, err := newTerms(failpath, inTerms) if err != nil { fmt.Printf("failed to enable \"%s=%s\" (%v)\n", failpath, inTerms, err) return nil, err } failpointsMu.RLock() fp := failpoints[failpath] failpointsMu.RUnlock() if fp == nil { return nil, ErrNoExist } fp.mu.Lock() fp.t = t return func() { fp.mu.Unlock() }, nil }
go
func enableAndLock(failpath, inTerms string) (func(), error) { t, err := newTerms(failpath, inTerms) if err != nil { fmt.Printf("failed to enable \"%s=%s\" (%v)\n", failpath, inTerms, err) return nil, err } failpointsMu.RLock() fp := failpoints[failpath] failpointsMu.RUnlock() if fp == nil { return nil, ErrNoExist } fp.mu.Lock() fp.t = t return func() { fp.mu.Unlock() }, nil }
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// enableAndLock enables a failpoint and returns a function to unlock it
[ "enableAndLock", "enables", "a", "failpoint", "and", "returns", "a", "function", "to", "unlock", "it" ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/runtime/runtime.go#L65-L80
train
etcd-io/gofail
runtime/runtime.go
Disable
func Disable(failpath string) error { failpointsMu.RLock() fp := failpoints[failpath] failpointsMu.RUnlock() if fp == nil { return ErrNoExist } fp.mu.Lock() defer fp.mu.Unlock() if fp.t == nil { return ErrDisabled } fp.t = nil return nil }
go
func Disable(failpath string) error { failpointsMu.RLock() fp := failpoints[failpath] failpointsMu.RUnlock() if fp == nil { return ErrNoExist } fp.mu.Lock() defer fp.mu.Unlock() if fp.t == nil { return ErrDisabled } fp.t = nil return nil }
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// Disable stops a failpoint from firing.
[ "Disable", "stops", "a", "failpoint", "from", "firing", "." ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/runtime/runtime.go#L83-L97
train
etcd-io/gofail
runtime/runtime.go
Status
func Status(failpath string) (string, error) { failpointsMu.RLock() fp := failpoints[failpath] failpointsMu.RUnlock() if fp == nil { return "", ErrNoExist } fp.mu.RLock() t := fp.t fp.mu.RUnlock() if t == nil { return "", ErrDisabled } return t.desc, nil }
go
func Status(failpath string) (string, error) { failpointsMu.RLock() fp := failpoints[failpath] failpointsMu.RUnlock() if fp == nil { return "", ErrNoExist } fp.mu.RLock() t := fp.t fp.mu.RUnlock() if t == nil { return "", ErrDisabled } return t.desc, nil }
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// Status gives the current setting for the failpoint
[ "Status", "gives", "the", "current", "setting", "for", "the", "failpoint" ]
51ce9a71510a58bad5ae66ddd278ef28762a1550
https://github.com/etcd-io/gofail/blob/51ce9a71510a58bad5ae66ddd278ef28762a1550/runtime/runtime.go#L100-L114
train