mirror of
https://github.com/rclone/rclone.git
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vendor: add github.com/aalpar/deheap
This commit is contained in:
parent
4c82b1f3c6
commit
84369286df
1
go.mod
1
go.mod
@ -8,6 +8,7 @@ require (
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github.com/Azure/go-autorest/autorest/adal v0.6.0 // indirect
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github.com/Unknwon/goconfig v0.0.0-20191126170842-860a72fb44fd
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github.com/a8m/tree v0.0.0-20181222104329-6a0b80129de4
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github.com/aalpar/deheap v0.0.0-20191229192855-f837f7a9ba26
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github.com/abbot/go-http-auth v0.4.0
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github.com/anacrolix/dms v1.1.0
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github.com/atotto/clipboard v0.1.2
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3
go.sum
3
go.sum
@ -48,6 +48,8 @@ github.com/Unknwon/goconfig v0.0.0-20191126170842-860a72fb44fd h1:+CYOsXi89xOqBk
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github.com/Unknwon/goconfig v0.0.0-20191126170842-860a72fb44fd/go.mod h1:wngxua9XCNjvHjDiTiV26DaKDT+0c63QR6H5hjVUUxw=
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github.com/a8m/tree v0.0.0-20181222104329-6a0b80129de4 h1:mK1/QgFPU4osbhjJ26B1w738kjQHaGJcon8uCLMS8fk=
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github.com/a8m/tree v0.0.0-20181222104329-6a0b80129de4/go.mod h1:FSdwKX97koS5efgm8WevNf7XS3PqtyFkKDDXrz778cg=
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github.com/aalpar/deheap v0.0.0-20191229192855-f837f7a9ba26 h1:vn0bf9tSbwrl9aBeG5hqGPpWeZGEybrB3LUJkHP/x6w=
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github.com/aalpar/deheap v0.0.0-20191229192855-f837f7a9ba26/go.mod h1:EJFoWbcEEVK22GYKONJjtMNamGYe6p+3x1Pr6zV5gFs=
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github.com/abbot/go-http-auth v0.4.0 h1:QjmvZ5gSC7jm3Zg54DqWE/T5m1t2AfDu6QlXJT0EVT0=
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github.com/abbot/go-http-auth v0.4.0/go.mod h1:Cz6ARTIzApMJDzh5bRMSUou6UMSp0IEXg9km/ci7TJM=
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github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
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@ -576,6 +578,7 @@ gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLks
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
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gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
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gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
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gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
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20
vendor/github.com/aalpar/deheap/LICENSE.txt
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vendored
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vendor/github.com/aalpar/deheap/LICENSE.txt
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@ -0,0 +1,20 @@
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Copyright 2019 Aaron H. Alpar
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files
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(the "Software"), to deal in the Software without restriction,
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including without limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of the Software,
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and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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vendor/github.com/aalpar/deheap/README.md
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vendored
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vendor/github.com/aalpar/deheap/README.md
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# deheap
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Package deheap provides the implementation of a doubly ended heap.
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Doubly ended heaps are heaps with two sides, a min side and a max side.
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Like normal single-sided heaps, elements can be pushed onto and pulled
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off of a deheap. deheaps have an additional `Pop` function, `PopMax`, that
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returns elements from the opposite side of the ordering.
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This implementation has emphasized compatibility with existing libraries
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in the sort and heap packages.
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Performace of the deheap functions should be very close to the
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performance of the functions of the heap library
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vendor/github.com/aalpar/deheap/deheap.go
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228
vendor/github.com/aalpar/deheap/deheap.go
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//
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// Copyright 2019 Aaron H. Alpar
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files
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// (the "Software"), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//
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// Package deheap provides the implementation of a doubly ended heap.
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// Doubly ended heaps are heaps with two sides, a min side and a max side.
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// Like normal single-sided heaps, elements can be pushed onto and pulled
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// off of a deheap. deheaps have an additional Pop function, PopMax, that
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// returns elements from the opposite side of the ordering.
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//
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// This implementation has emphasized compatibility with existing libraries
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// in the sort and heap packages.
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//
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// Performace of the deheap functions should be very close to the
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// performance of the functions of the heap library
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//
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package deheap
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import (
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"container/heap"
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"math/bits"
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)
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func hparent(i int) int {
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return (i - 1) / 2
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}
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func hlchild(i int) int {
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return (i * 2) + 1
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}
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func parent(i int) int {
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return ((i + 1) / 4) - 1
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}
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func lchild(i int) int {
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return ((i + 1 ) * 4) - 1
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}
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func level(i int) int {
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return bits.Len(uint(i)+1) - 1
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}
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func isMinHeap(i int) bool {
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return level(i) % 2 == 0
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}
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func min4(h heap.Interface, l int, min bool, i int) int {
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q := i
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i++
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if i >= l {
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return q
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}
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if min == h.Less(i, q) {
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q = i
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}
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i++
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if i >= l {
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return q
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}
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if min == h.Less(i, q) {
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q = i
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}
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i++
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if i >= l {
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return q
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}
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if min == h.Less(i, q) {
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q = i
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}
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return q
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}
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// min2
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func min2(h heap.Interface, l int, min bool, i int) int {
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if i+1 >= l {
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return i
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}
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if min != h.Less(i+1, i) {
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return i
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}
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return i + 1
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}
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// min3
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func min3(h heap.Interface, l int, min bool, i, j, k int) int {
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q := i
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if j < l && h.Less(j, q) == min {
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q = j
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}
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if k < l && h.Less(k, q) == min {
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q = k
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}
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return q
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}
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// bubbledown
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func bubbledown(h heap.Interface, l int, min bool, i int) (q int, r int) {
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q = i
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r = i
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for {
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// find min of children
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j := min2(h, l, min, hlchild(i))
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if j >= l {
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break
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}
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// find min of grandchildren
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k := min4(h, l, min, lchild(i))
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// swap of less than the element at i
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v := min3(h, l, min, i, j, k)
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if v == i || v >= l {
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break
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}
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// v == k
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q = v
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h.Swap(v, i)
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if v == j {
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break
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}
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p := hparent(v)
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if h.Less(p, v) == min {
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h.Swap(p, v)
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r = p
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}
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i = v
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}
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return q, r
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}
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// bubbleup
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func bubbleup(h heap.Interface, min bool, i int) (q bool) {
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if i < 0 {
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return false
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}
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j := parent(i)
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for j >= 0 && min == h.Less(i, j) {
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q = true
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h.Swap(i, j)
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i = j
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j = parent(i)
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}
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min = !min
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j = hparent(i)
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for j >= 0 && min == h.Less(i, j) {
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q = true
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h.Swap(i, j)
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i = j
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j = parent(i)
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}
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return q
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}
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// Pop the smallest value off the heap. See heap.Pop().
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// Time complexity is O(log n), where n = h.Len()
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func Pop(h heap.Interface) interface{} {
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l := h.Len()-1
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h.Swap(0, l)
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q := h.Pop()
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bubbledown(h, l, true, 0)
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return q
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}
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// Pop the largest value off the heap. See heap.Pop().
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// Time complexity is O(log n), where n = h.Len()
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func PopMax(h heap.Interface) interface{} {
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l := h.Len()
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j := 0
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if l > 1 {
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j = min2(h, l,false, 1)
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}
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l = l - 1
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h.Swap(j, l)
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q := h.Pop()
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bubbledown(h, l,false, j)
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return q
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}
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// Remove element at index i. See heap.Remove().
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// The complexity is O(log n) where n = h.Len().
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func Remove(h heap.Interface, i int) (q interface{}) {
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l := h.Len() - 1
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h.Swap(i, l)
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q = h.Pop()
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if l != i {
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q, r := bubbledown(h, l, isMinHeap(i), i)
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bubbleup(h, isMinHeap(q), q)
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bubbleup(h, isMinHeap(r), r)
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}
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return q
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}
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// Push an element onto the heap. See heap.Push()
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// Time complexity is O(log n), where n = h.Len()
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func Push(h heap.Interface, o interface{}) {
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h.Push(o)
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l := h.Len()
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i := l - 1
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bubbleup(h, isMinHeap(i), i)
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}
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// Init initializes the heap.
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// This should be called once on non-empty heaps before calling Pop(), PopMax() or Push(). See heap.Init()
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func Init(h heap.Interface) {
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l := h.Len()
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for i := 0; i < l; i++ {
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bubbleup(h, isMinHeap(i), i)
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}
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}
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2
vendor/modules.txt
vendored
2
vendor/modules.txt
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@ -12,6 +12,8 @@ github.com/Azure/azure-storage-blob-go/azblob
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github.com/Unknwon/goconfig
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# github.com/a8m/tree v0.0.0-20181222104329-6a0b80129de4
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github.com/a8m/tree
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# github.com/aalpar/deheap v0.0.0-20191229192855-f837f7a9ba26
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github.com/aalpar/deheap
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# github.com/abbot/go-http-auth v0.4.0
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github.com/abbot/go-http-auth
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# github.com/anacrolix/dms v1.1.0
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