pax_global_header00006660000000000000000000000064131134133100014500gustar00rootroot0000000000000052 comment=05f0d830551e208817990696d8175c2172b61f6c golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/000077500000000000000000000000001311341331000220675ustar00rootroot00000000000000golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/CONTRIBUTING.md000066400000000000000000000053131311341331000243220ustar00rootroot00000000000000# Contributing to go-units Want to hack on go-units? Awesome! Here are instructions to get you started. go-units is a part of the [Docker](https://www.docker.com) project, and follows the same rules and principles. If you're already familiar with the way Docker does things, you'll feel right at home. Otherwise, go read Docker's [contributions guidelines](https://github.com/docker/docker/blob/master/CONTRIBUTING.md), [issue triaging](https://github.com/docker/docker/blob/master/project/ISSUE-TRIAGE.md), [review process](https://github.com/docker/docker/blob/master/project/REVIEWING.md) and [branches and tags](https://github.com/docker/docker/blob/master/project/BRANCHES-AND-TAGS.md). ### Sign your work The sign-off is a simple line at the end of the explanation for the patch. Your signature certifies that you wrote the patch or otherwise have the right to pass it on as an open-source patch. The rules are pretty simple: if you can certify the below (from [developercertificate.org](http://developercertificate.org/)): ``` Developer Certificate of Origin Version 1.1 Copyright (C) 2004, 2006 The Linux Foundation and its contributors. 660 York Street, Suite 102, San Francisco, CA 94110 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Developer's Certificate of Origin 1.1 By making a contribution to this project, I certify that: (a) The contribution was created in whole or in part by me and I have the right to submit it under the open source license indicated in the file; or (b) The contribution is based upon previous work that, to the best of my knowledge, is covered under an appropriate open source license and I have the right under that license to submit that work with modifications, whether created in whole or in part by me, under the same open source license (unless I am permitted to submit under a different license), as indicated in the file; or (c) The contribution was provided directly to me by some other person who certified (a), (b) or (c) and I have not modified it. (d) I understand and agree that this project and the contribution are public and that a record of the contribution (including all personal information I submit with it, including my sign-off) is maintained indefinitely and may be redistributed consistent with this project or the open source license(s) involved. ``` Then you just add a line to every git commit message: Signed-off-by: Joe Smith Use your real name (sorry, no pseudonyms or anonymous contributions.) If you set your `user.name` and `user.email` git configs, you can sign your commit automatically with `git commit -s`. golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/LICENSE000066400000000000000000000250101311341331000230720ustar00rootroot00000000000000 Apache License Version 2.0, January 2004 https://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. 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You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS Copyright 2015 Docker, Inc. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/MAINTAINERS000066400000000000000000000014231311341331000235640ustar00rootroot00000000000000# go-connections maintainers file # # This file describes who runs the docker/go-connections project and how. # This is a living document - if you see something out of date or missing, speak up! # # It is structured to be consumable by both humans and programs. # To extract its contents programmatically, use any TOML-compliant parser. # # This file is compiled into the MAINTAINERS file in docker/opensource. # [Org] [Org."Core maintainers"] people = [ "calavera", ] [people] # A reference list of all people associated with the project. # All other sections should refer to people by their canonical key # in the people section. # ADD YOURSELF HERE IN ALPHABETICAL ORDER [people.calavera] Name = "David Calavera" Email = "david.calavera@gmail.com" GitHub = "calavera" golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/README.md000066400000000000000000000010011311341331000233360ustar00rootroot00000000000000[![GoDoc](https://godoc.org/github.com/docker/go-units?status.svg)](https://godoc.org/github.com/docker/go-units) # Introduction go-units is a library to transform human friendly measurements into machine friendly values. ## Usage See the [docs in godoc](https://godoc.org/github.com/docker/go-units) for examples and documentation. ## Copyright and license Copyright © 2015 Docker, Inc. go-units is licensed under the Apache License, Version 2.0. See [LICENSE](LICENSE) for the full text of the license. golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/circle.yml000066400000000000000000000003741311341331000240570ustar00rootroot00000000000000dependencies: post: # install golint - go get github.com/golang/lint/golint test: pre: # run analysis before tests - go vet ./... - test -z "$(golint ./... | tee /dev/stderr)" - test -z "$(gofmt -s -l . | tee /dev/stderr)" golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/duration.go000066400000000000000000000020741311341331000242460ustar00rootroot00000000000000// Package units provides helper function to parse and print size and time units // in human-readable format. package units import ( "fmt" "time" ) // HumanDuration returns a human-readable approximation of a duration // (eg. "About a minute", "4 hours ago", etc.). func HumanDuration(d time.Duration) string { if seconds := int(d.Seconds()); seconds < 1 { return "Less than a second" } else if seconds == 1 { return "1 second" } else if seconds < 60 { return fmt.Sprintf("%d seconds", seconds) } else if minutes := int(d.Minutes()); minutes == 1 { return "About a minute" } else if minutes < 46 { return fmt.Sprintf("%d minutes", minutes) } else if hours := int(d.Hours() + 0.5); hours == 1 { return "About an hour" } else if hours < 48 { return fmt.Sprintf("%d hours", hours) } else if hours < 24*7*2 { return fmt.Sprintf("%d days", hours/24) } else if hours < 24*30*2 { return fmt.Sprintf("%d weeks", hours/24/7) } else if hours < 24*365*2 { return fmt.Sprintf("%d months", hours/24/30) } return fmt.Sprintf("%d years", int(d.Hours())/24/365) } golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/duration_test.go000066400000000000000000000111411311341331000253000ustar00rootroot00000000000000package units import ( "fmt" "testing" "time" ) func ExampleHumanDuration() { fmt.Println(HumanDuration(450 * time.Millisecond)) fmt.Println(HumanDuration(47 * time.Second)) fmt.Println(HumanDuration(1 * time.Minute)) fmt.Println(HumanDuration(3 * time.Minute)) fmt.Println(HumanDuration(35 * time.Minute)) fmt.Println(HumanDuration(35*time.Minute + 40*time.Second)) fmt.Println(HumanDuration(1 * time.Hour)) fmt.Println(HumanDuration(1*time.Hour + 45*time.Minute)) fmt.Println(HumanDuration(3 * time.Hour)) fmt.Println(HumanDuration(3*time.Hour + 59*time.Minute)) fmt.Println(HumanDuration(3*time.Hour + 60*time.Minute)) fmt.Println(HumanDuration(24 * time.Hour)) fmt.Println(HumanDuration(24*time.Hour + 12*time.Hour)) fmt.Println(HumanDuration(2 * 24 * time.Hour)) fmt.Println(HumanDuration(7 * 24 * time.Hour)) fmt.Println(HumanDuration(13*24*time.Hour + 5*time.Hour)) fmt.Println(HumanDuration(2 * 7 * 24 * time.Hour)) fmt.Println(HumanDuration(2*7*24*time.Hour + 4*24*time.Hour)) fmt.Println(HumanDuration(3 * 7 * 24 * time.Hour)) fmt.Println(HumanDuration(4 * 7 * 24 * time.Hour)) fmt.Println(HumanDuration(4*7*24*time.Hour + 3*24*time.Hour)) fmt.Println(HumanDuration(1 * 30 * 24 * time.Hour)) fmt.Println(HumanDuration(1*30*24*time.Hour + 2*7*24*time.Hour)) fmt.Println(HumanDuration(2 * 30 * 24 * time.Hour)) fmt.Println(HumanDuration(3*30*24*time.Hour + 1*7*24*time.Hour)) fmt.Println(HumanDuration(5*30*24*time.Hour + 2*7*24*time.Hour)) fmt.Println(HumanDuration(13 * 30 * 24 * time.Hour)) fmt.Println(HumanDuration(23 * 30 * 24 * time.Hour)) fmt.Println(HumanDuration(24 * 30 * 24 * time.Hour)) fmt.Println(HumanDuration(24*30*24*time.Hour + 2*7*24*time.Hour)) fmt.Println(HumanDuration(3*365*24*time.Hour + 2*30*24*time.Hour)) } func TestHumanDuration(t *testing.T) { // Useful duration abstractions day := 24 * time.Hour week := 7 * day month := 30 * day year := 365 * day assertEquals(t, "Less than a second", HumanDuration(450*time.Millisecond)) assertEquals(t, "1 second", HumanDuration(1*time.Second)) assertEquals(t, "45 seconds", HumanDuration(45*time.Second)) assertEquals(t, "46 seconds", HumanDuration(46*time.Second)) assertEquals(t, "59 seconds", HumanDuration(59*time.Second)) assertEquals(t, "About a minute", HumanDuration(60*time.Second)) assertEquals(t, "About a minute", HumanDuration(1*time.Minute)) assertEquals(t, "3 minutes", HumanDuration(3*time.Minute)) assertEquals(t, "35 minutes", HumanDuration(35*time.Minute)) assertEquals(t, "35 minutes", HumanDuration(35*time.Minute+40*time.Second)) assertEquals(t, "45 minutes", HumanDuration(45*time.Minute)) assertEquals(t, "45 minutes", HumanDuration(45*time.Minute+40*time.Second)) assertEquals(t, "About an hour", HumanDuration(46*time.Minute)) assertEquals(t, "About an hour", HumanDuration(59*time.Minute)) assertEquals(t, "About an hour", HumanDuration(1*time.Hour)) assertEquals(t, "About an hour", HumanDuration(1*time.Hour+29*time.Minute)) assertEquals(t, "2 hours", HumanDuration(1*time.Hour+31*time.Minute)) assertEquals(t, "2 hours", HumanDuration(1*time.Hour+59*time.Minute)) assertEquals(t, "3 hours", HumanDuration(3*time.Hour)) assertEquals(t, "3 hours", HumanDuration(3*time.Hour+29*time.Minute)) assertEquals(t, "4 hours", HumanDuration(3*time.Hour+31*time.Minute)) assertEquals(t, "4 hours", HumanDuration(3*time.Hour+59*time.Minute)) assertEquals(t, "4 hours", HumanDuration(3*time.Hour+60*time.Minute)) assertEquals(t, "24 hours", HumanDuration(24*time.Hour)) assertEquals(t, "36 hours", HumanDuration(1*day+12*time.Hour)) assertEquals(t, "2 days", HumanDuration(2*day)) assertEquals(t, "7 days", HumanDuration(7*day)) assertEquals(t, "13 days", HumanDuration(13*day+5*time.Hour)) assertEquals(t, "2 weeks", HumanDuration(2*week)) assertEquals(t, "2 weeks", HumanDuration(2*week+4*day)) assertEquals(t, "3 weeks", HumanDuration(3*week)) assertEquals(t, "4 weeks", HumanDuration(4*week)) assertEquals(t, "4 weeks", HumanDuration(4*week+3*day)) assertEquals(t, "4 weeks", HumanDuration(1*month)) assertEquals(t, "6 weeks", HumanDuration(1*month+2*week)) assertEquals(t, "2 months", HumanDuration(2*month)) assertEquals(t, "2 months", HumanDuration(2*month+2*week)) assertEquals(t, "3 months", HumanDuration(3*month)) assertEquals(t, "3 months", HumanDuration(3*month+1*week)) assertEquals(t, "5 months", HumanDuration(5*month+2*week)) assertEquals(t, "13 months", HumanDuration(13*month)) assertEquals(t, "23 months", HumanDuration(23*month)) assertEquals(t, "24 months", HumanDuration(24*month)) assertEquals(t, "2 years", HumanDuration(24*month+2*week)) assertEquals(t, "3 years", HumanDuration(3*year+2*month)) } golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/size.go000066400000000000000000000056571311341331000234050ustar00rootroot00000000000000package units import ( "fmt" "regexp" "strconv" "strings" ) // See: http://en.wikipedia.org/wiki/Binary_prefix const ( // Decimal KB = 1000 MB = 1000 * KB GB = 1000 * MB TB = 1000 * GB PB = 1000 * TB // Binary KiB = 1024 MiB = 1024 * KiB GiB = 1024 * MiB TiB = 1024 * GiB PiB = 1024 * TiB ) type unitMap map[string]int64 var ( decimalMap = unitMap{"k": KB, "m": MB, "g": GB, "t": TB, "p": PB} binaryMap = unitMap{"k": KiB, "m": MiB, "g": GiB, "t": TiB, "p": PiB} sizeRegex = regexp.MustCompile(`^(\d+(\.\d+)*) ?([kKmMgGtTpP])?[bB]?$`) ) var decimapAbbrs = []string{"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"} var binaryAbbrs = []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"} func getSizeAndUnit(size float64, base float64, _map []string) (float64, string) { i := 0 unitsLimit := len(_map) - 1 for size >= base && i < unitsLimit { size = size / base i++ } return size, _map[i] } // CustomSize returns a human-readable approximation of a size // using custom format. func CustomSize(format string, size float64, base float64, _map []string) string { size, unit := getSizeAndUnit(size, base, _map) return fmt.Sprintf(format, size, unit) } // HumanSizeWithPrecision allows the size to be in any precision, // instead of 4 digit precision used in units.HumanSize. func HumanSizeWithPrecision(size float64, precision int) string { size, unit := getSizeAndUnit(size, 1000.0, decimapAbbrs) return fmt.Sprintf("%.*g%s", precision, size, unit) } // HumanSize returns a human-readable approximation of a size // capped at 4 valid numbers (eg. "2.746 MB", "796 KB"). func HumanSize(size float64) string { return HumanSizeWithPrecision(size, 4) } // BytesSize returns a human-readable size in bytes, kibibytes, // mebibytes, gibibytes, or tebibytes (eg. "44kiB", "17MiB"). func BytesSize(size float64) string { return CustomSize("%.4g%s", size, 1024.0, binaryAbbrs) } // FromHumanSize returns an integer from a human-readable specification of a // size using SI standard (eg. "44kB", "17MB"). func FromHumanSize(size string) (int64, error) { return parseSize(size, decimalMap) } // RAMInBytes parses a human-readable string representing an amount of RAM // in bytes, kibibytes, mebibytes, gibibytes, or tebibytes and // returns the number of bytes, or -1 if the string is unparseable. // Units are case-insensitive, and the 'b' suffix is optional. func RAMInBytes(size string) (int64, error) { return parseSize(size, binaryMap) } // Parses the human-readable size string into the amount it represents. func parseSize(sizeStr string, uMap unitMap) (int64, error) { matches := sizeRegex.FindStringSubmatch(sizeStr) if len(matches) != 4 { return -1, fmt.Errorf("invalid size: '%s'", sizeStr) } size, err := strconv.ParseFloat(matches[1], 64) if err != nil { return -1, err } unitPrefix := strings.ToLower(matches[3]) if mul, ok := uMap[unitPrefix]; ok { size *= float64(mul) } return int64(size), nil } golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/size_test.go000066400000000000000000000125261311341331000244350ustar00rootroot00000000000000package units import ( "fmt" "reflect" "runtime" "strings" "testing" ) func ExampleBytesSize() { fmt.Println(BytesSize(1024)) fmt.Println(BytesSize(1024 * 1024)) fmt.Println(BytesSize(1048576)) fmt.Println(BytesSize(2 * MiB)) fmt.Println(BytesSize(3.42 * GiB)) fmt.Println(BytesSize(5.372 * TiB)) fmt.Println(BytesSize(2.22 * PiB)) } func ExampleHumanSize() { fmt.Println(HumanSize(1000)) fmt.Println(HumanSize(1024)) fmt.Println(HumanSize(1000000)) fmt.Println(HumanSize(1048576)) fmt.Println(HumanSize(2 * MB)) fmt.Println(HumanSize(float64(3.42 * GB))) fmt.Println(HumanSize(float64(5.372 * TB))) fmt.Println(HumanSize(float64(2.22 * PB))) } func ExampleFromHumanSize() { fmt.Println(FromHumanSize("32")) fmt.Println(FromHumanSize("32b")) fmt.Println(FromHumanSize("32B")) fmt.Println(FromHumanSize("32k")) fmt.Println(FromHumanSize("32K")) fmt.Println(FromHumanSize("32kb")) fmt.Println(FromHumanSize("32Kb")) fmt.Println(FromHumanSize("32Mb")) fmt.Println(FromHumanSize("32Gb")) fmt.Println(FromHumanSize("32Tb")) fmt.Println(FromHumanSize("32Pb")) } func ExampleRAMInBytes() { fmt.Println(RAMInBytes("32")) fmt.Println(RAMInBytes("32b")) fmt.Println(RAMInBytes("32B")) fmt.Println(RAMInBytes("32k")) fmt.Println(RAMInBytes("32K")) fmt.Println(RAMInBytes("32kb")) fmt.Println(RAMInBytes("32Kb")) fmt.Println(RAMInBytes("32Mb")) fmt.Println(RAMInBytes("32Gb")) fmt.Println(RAMInBytes("32Tb")) fmt.Println(RAMInBytes("32Pb")) fmt.Println(RAMInBytes("32PB")) fmt.Println(RAMInBytes("32P")) } func TestBytesSize(t *testing.T) { assertEquals(t, "1KiB", BytesSize(1024)) assertEquals(t, "1MiB", BytesSize(1024*1024)) assertEquals(t, "1MiB", BytesSize(1048576)) assertEquals(t, "2MiB", BytesSize(2*MiB)) assertEquals(t, "3.42GiB", BytesSize(3.42*GiB)) assertEquals(t, "5.372TiB", BytesSize(5.372*TiB)) assertEquals(t, "2.22PiB", BytesSize(2.22*PiB)) assertEquals(t, "1.049e+06YiB", BytesSize(KiB*KiB*KiB*KiB*KiB*PiB)) } func TestHumanSize(t *testing.T) { assertEquals(t, "1kB", HumanSize(1000)) assertEquals(t, "1.024kB", HumanSize(1024)) assertEquals(t, "1MB", HumanSize(1000000)) assertEquals(t, "1.049MB", HumanSize(1048576)) assertEquals(t, "2MB", HumanSize(2*MB)) assertEquals(t, "3.42GB", HumanSize(float64(3.42*GB))) assertEquals(t, "5.372TB", HumanSize(float64(5.372*TB))) assertEquals(t, "2.22PB", HumanSize(float64(2.22*PB))) assertEquals(t, "1e+04YB", HumanSize(float64(10000000000000*PB))) } func TestFromHumanSize(t *testing.T) { assertSuccessEquals(t, 32, FromHumanSize, "32") assertSuccessEquals(t, 32, FromHumanSize, "32b") assertSuccessEquals(t, 32, FromHumanSize, "32B") assertSuccessEquals(t, 32*KB, FromHumanSize, "32k") assertSuccessEquals(t, 32*KB, FromHumanSize, "32K") assertSuccessEquals(t, 32*KB, FromHumanSize, "32kb") assertSuccessEquals(t, 32*KB, FromHumanSize, "32Kb") assertSuccessEquals(t, 32*MB, FromHumanSize, "32Mb") assertSuccessEquals(t, 32*GB, FromHumanSize, "32Gb") assertSuccessEquals(t, 32*TB, FromHumanSize, "32Tb") assertSuccessEquals(t, 32*PB, FromHumanSize, "32Pb") assertSuccessEquals(t, 32.5*KB, FromHumanSize, "32.5kB") assertSuccessEquals(t, 32.5*KB, FromHumanSize, "32.5 kB") assertSuccessEquals(t, 32, FromHumanSize, "32.5 B") assertError(t, FromHumanSize, "") assertError(t, FromHumanSize, "hello") assertError(t, FromHumanSize, "-32") assertError(t, FromHumanSize, ".3kB") assertError(t, FromHumanSize, " 32 ") assertError(t, FromHumanSize, "32m b") assertError(t, FromHumanSize, "32bm") } func TestRAMInBytes(t *testing.T) { assertSuccessEquals(t, 32, RAMInBytes, "32") assertSuccessEquals(t, 32, RAMInBytes, "32b") assertSuccessEquals(t, 32, RAMInBytes, "32B") assertSuccessEquals(t, 32*KiB, RAMInBytes, "32k") assertSuccessEquals(t, 32*KiB, RAMInBytes, "32K") assertSuccessEquals(t, 32*KiB, RAMInBytes, "32kb") assertSuccessEquals(t, 32*KiB, RAMInBytes, "32Kb") assertSuccessEquals(t, 32*MiB, RAMInBytes, "32Mb") assertSuccessEquals(t, 32*GiB, RAMInBytes, "32Gb") assertSuccessEquals(t, 32*TiB, RAMInBytes, "32Tb") assertSuccessEquals(t, 32*PiB, RAMInBytes, "32Pb") assertSuccessEquals(t, 32*PiB, RAMInBytes, "32PB") assertSuccessEquals(t, 32*PiB, RAMInBytes, "32P") assertSuccessEquals(t, 32, RAMInBytes, "32.3") tmp := 32.3 * MiB assertSuccessEquals(t, int64(tmp), RAMInBytes, "32.3 mb") assertError(t, RAMInBytes, "") assertError(t, RAMInBytes, "hello") assertError(t, RAMInBytes, "-32") assertError(t, RAMInBytes, " 32 ") assertError(t, RAMInBytes, "32m b") assertError(t, RAMInBytes, "32bm") } func assertEquals(t *testing.T, expected, actual interface{}) { if expected != actual { t.Errorf("Expected '%v' but got '%v'", expected, actual) } } // func that maps to the parse function signatures as testing abstraction type parseFn func(string) (int64, error) // Define 'String()' for pretty-print func (fn parseFn) String() string { fnName := runtime.FuncForPC(reflect.ValueOf(fn).Pointer()).Name() return fnName[strings.LastIndex(fnName, ".")+1:] } func assertSuccessEquals(t *testing.T, expected int64, fn parseFn, arg string) { res, err := fn(arg) if err != nil || res != expected { t.Errorf("%s(\"%s\") -> expected '%d' but got '%d' with error '%v'", fn, arg, expected, res, err) } } func assertError(t *testing.T, fn parseFn, arg string) { res, err := fn(arg) if err == nil && res != -1 { t.Errorf("%s(\"%s\") -> expected error but got '%d'", fn, arg, res) } } golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/ulimit.go000066400000000000000000000057101311341331000237240ustar00rootroot00000000000000package units import ( "fmt" "strconv" "strings" ) // Ulimit is a human friendly version of Rlimit. type Ulimit struct { Name string Hard int64 Soft int64 } // Rlimit specifies the resource limits, such as max open files. type Rlimit struct { Type int `json:"type,omitempty"` Hard uint64 `json:"hard,omitempty"` Soft uint64 `json:"soft,omitempty"` } const ( // magic numbers for making the syscall // some of these are defined in the syscall package, but not all. // Also since Windows client doesn't get access to the syscall package, need to // define these here rlimitAs = 9 rlimitCore = 4 rlimitCPU = 0 rlimitData = 2 rlimitFsize = 1 rlimitLocks = 10 rlimitMemlock = 8 rlimitMsgqueue = 12 rlimitNice = 13 rlimitNofile = 7 rlimitNproc = 6 rlimitRss = 5 rlimitRtprio = 14 rlimitRttime = 15 rlimitSigpending = 11 rlimitStack = 3 ) var ulimitNameMapping = map[string]int{ //"as": rlimitAs, // Disabled since this doesn't seem usable with the way Docker inits a container. "core": rlimitCore, "cpu": rlimitCPU, "data": rlimitData, "fsize": rlimitFsize, "locks": rlimitLocks, "memlock": rlimitMemlock, "msgqueue": rlimitMsgqueue, "nice": rlimitNice, "nofile": rlimitNofile, "nproc": rlimitNproc, "rss": rlimitRss, "rtprio": rlimitRtprio, "rttime": rlimitRttime, "sigpending": rlimitSigpending, "stack": rlimitStack, } // ParseUlimit parses and returns a Ulimit from the specified string. func ParseUlimit(val string) (*Ulimit, error) { parts := strings.SplitN(val, "=", 2) if len(parts) != 2 { return nil, fmt.Errorf("invalid ulimit argument: %s", val) } if _, exists := ulimitNameMapping[parts[0]]; !exists { return nil, fmt.Errorf("invalid ulimit type: %s", parts[0]) } var ( soft int64 hard = &soft // default to soft in case no hard was set temp int64 err error ) switch limitVals := strings.Split(parts[1], ":"); len(limitVals) { case 2: temp, err = strconv.ParseInt(limitVals[1], 10, 64) if err != nil { return nil, err } hard = &temp fallthrough case 1: soft, err = strconv.ParseInt(limitVals[0], 10, 64) if err != nil { return nil, err } default: return nil, fmt.Errorf("too many limit value arguments - %s, can only have up to two, `soft[:hard]`", parts[1]) } if soft > *hard { return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: %d > %d", soft, *hard) } return &Ulimit{Name: parts[0], Soft: soft, Hard: *hard}, nil } // GetRlimit returns the RLimit corresponding to Ulimit. func (u *Ulimit) GetRlimit() (*Rlimit, error) { t, exists := ulimitNameMapping[u.Name] if !exists { return nil, fmt.Errorf("invalid ulimit name %s", u.Name) } return &Rlimit{Type: t, Soft: uint64(u.Soft), Hard: uint64(u.Hard)}, nil } func (u *Ulimit) String() string { return fmt.Sprintf("%s=%d:%d", u.Name, u.Soft, u.Hard) } golang-github-docker-go-units-0.3.1+git20170127.11.9e638d3/ulimit_test.go000066400000000000000000000074441311341331000247710ustar00rootroot00000000000000package units import ( "fmt" "strconv" "testing" ) func ExampleParseUlimit() { fmt.Println(ParseUlimit("nofile=512:1024")) fmt.Println(ParseUlimit("nofile=1024")) fmt.Println(ParseUlimit("cpu=2:4")) fmt.Println(ParseUlimit("cpu=6")) } func TestParseUlimitValid(t *testing.T) { u1 := &Ulimit{"nofile", 1024, 512} if u2, _ := ParseUlimit("nofile=512:1024"); *u1 != *u2 { t.Fatalf("expected %q, but got %q", u1, u2) } } func TestParseUlimitInvalidLimitType(t *testing.T) { if _, err := ParseUlimit("notarealtype=1024:1024"); err == nil { t.Fatalf("expected error on invalid ulimit type") } } func TestParseUlimitBadFormat(t *testing.T) { if _, err := ParseUlimit("nofile:1024:1024"); err == nil { t.Fatal("expected error on bad syntax") } if _, err := ParseUlimit("nofile"); err == nil { t.Fatal("expected error on bad syntax") } if _, err := ParseUlimit("nofile="); err == nil { t.Fatal("expected error on bad syntax") } if _, err := ParseUlimit("nofile=:"); err == nil { t.Fatal("expected error on bad syntax") } if _, err := ParseUlimit("nofile=:1024"); err == nil { t.Fatal("expected error on bad syntax") } } func TestParseUlimitHardLessThanSoft(t *testing.T) { if _, err := ParseUlimit("nofile=1024:1"); err == nil { t.Fatal("expected error on hard limit less than soft limit") } } func TestParseUlimitInvalidValueType(t *testing.T) { if _, err := ParseUlimit("nofile=asdf"); err == nil { t.Fatal("expected error on bad value type, but got no error") } else if _, ok := err.(*strconv.NumError); !ok { t.Fatalf("expected error on bad value type, but got `%s`", err) } if _, err := ParseUlimit("nofile=1024:asdf"); err == nil { t.Fatal("expected error on bad value type, but got no error") } else if _, ok := err.(*strconv.NumError); !ok { t.Fatalf("expected error on bad value type, but got `%s`", err) } } func TestParseUlimitTooManyValueArgs(t *testing.T) { if _, err := ParseUlimit("nofile=1024:1:50"); err == nil { t.Fatalf("expected error on more than two value arguments") } } func TestUlimitStringOutput(t *testing.T) { u := &Ulimit{"nofile", 1024, 512} if s := u.String(); s != "nofile=512:1024" { t.Fatal("expected String to return nofile=512:1024, but got", s) } } func TestGetRlimit(t *testing.T) { tt := []struct { ulimit Ulimit rlimit Rlimit }{ {Ulimit{"core", 10, 12}, Rlimit{rlimitCore, 10, 12}}, {Ulimit{"cpu", 1, 10}, Rlimit{rlimitCPU, 1, 10}}, {Ulimit{"data", 5, 0}, Rlimit{rlimitData, 5, 0}}, {Ulimit{"fsize", 2, 2}, Rlimit{rlimitFsize, 2, 2}}, {Ulimit{"locks", 0, 0}, Rlimit{rlimitLocks, 0, 0}}, {Ulimit{"memlock", 10, 10}, Rlimit{rlimitMemlock, 10, 10}}, {Ulimit{"msgqueue", 9, 1}, Rlimit{rlimitMsgqueue, 9, 1}}, {Ulimit{"nice", 9, 9}, Rlimit{rlimitNice, 9, 9}}, {Ulimit{"nofile", 4, 100}, Rlimit{rlimitNofile, 4, 100}}, {Ulimit{"nproc", 5, 5}, Rlimit{rlimitNproc, 5, 5}}, {Ulimit{"rss", 0, 5}, Rlimit{rlimitRss, 0, 5}}, {Ulimit{"rtprio", 100, 65}, Rlimit{rlimitRtprio, 100, 65}}, {Ulimit{"rttime", 55, 102}, Rlimit{rlimitRttime, 55, 102}}, {Ulimit{"sigpending", 14, 20}, Rlimit{rlimitSigpending, 14, 20}}, {Ulimit{"stack", 1, 1}, Rlimit{rlimitStack, 1, 1}}, } for _, te := range tt { res, err := te.ulimit.GetRlimit() if err != nil { t.Errorf("expected not to fail: %s", err) } if res.Type != te.rlimit.Type { t.Errorf("expected Type to be %d but got %d", te.rlimit.Type, res.Type) } if res.Soft != te.rlimit.Soft { t.Errorf("expected Soft to be %d but got %d", te.rlimit.Soft, res.Soft) } if res.Hard != te.rlimit.Hard { t.Errorf("expected Hard to be %d but got %d", te.rlimit.Hard, res.Hard) } } } func TestGetRlimitBadUlimitName(t *testing.T) { name := "bla" uLimit := Ulimit{name, 0, 0} if _, err := uLimit.GetRlimit(); err == nil { t.Error("expected error on bad Ulimit name") } }