pax_global_header00006660000000000000000000000064130216347650014521gustar00rootroot0000000000000052 comment=fcdb11ccb4389efb1b210b7ffb623ab71c5fdd60 golang-procfs-0+git20161206.fcdb11c/000077500000000000000000000000001302163476500165665ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/.travis.yml000066400000000000000000000000651302163476500207000ustar00rootroot00000000000000sudo: false language: go go: - 1.6.4 - 1.7.4 golang-procfs-0+git20161206.fcdb11c/AUTHORS.md000066400000000000000000000012701302163476500202350ustar00rootroot00000000000000The Prometheus project was started by Matt T. Proud (emeritus) and Julius Volz in 2012. Maintainers of this repository: * Tobias Schmidt The following individuals have contributed code to this repository (listed in alphabetical order): * Armen Baghumian * Bjoern Rabenstein * David Cournapeau * Ji-Hoon, Seol * Jonas Große Sundrup * Julius Volz * Matt Layher * Matthias Rampke * Nicky Gerritsen * Rémi Audebert * Tobias Schmidt golang-procfs-0+git20161206.fcdb11c/CONTRIBUTING.md000066400000000000000000000015331302163476500210210ustar00rootroot00000000000000# Contributing Prometheus uses GitHub to manage reviews of pull requests. * If you have a trivial fix or improvement, go ahead and create a pull request, addressing (with `@...`) one or more of the maintainers (see [AUTHORS.md](AUTHORS.md)) in the description of the pull request. * If you plan to do something more involved, first discuss your ideas on our [mailing list](https://groups.google.com/forum/?fromgroups#!forum/prometheus-developers). This will avoid unnecessary work and surely give you and us a good deal of inspiration. * Relevant coding style guidelines are the [Go Code Review Comments](https://code.google.com/p/go-wiki/wiki/CodeReviewComments) and the _Formatting and style_ section of Peter Bourgon's [Go: Best Practices for Production Environments](http://peter.bourgon.org/go-in-production/#formatting-and-style). golang-procfs-0+git20161206.fcdb11c/LICENSE000066400000000000000000000261351302163476500176020ustar00rootroot00000000000000 Apache License Version 2.0, January 2004 http://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. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. 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 APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] 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 http://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-procfs-0+git20161206.fcdb11c/Makefile000066400000000000000000000001611302163476500202240ustar00rootroot00000000000000ci: ! gofmt -l *.go | read nothing go vet go test -v ./... go get github.com/golang/lint/golint golint *.go golang-procfs-0+git20161206.fcdb11c/NOTICE000066400000000000000000000003551302163476500174750ustar00rootroot00000000000000procfs provides functions to retrieve system, kernel and process metrics from the pseudo-filesystem proc. Copyright 2014-2015 The Prometheus Authors This product includes software developed at SoundCloud Ltd. (http://soundcloud.com/). golang-procfs-0+git20161206.fcdb11c/README.md000066400000000000000000000010001302163476500200340ustar00rootroot00000000000000# procfs This procfs package provides functions to retrieve system, kernel and process metrics from the pseudo-filesystem proc. *WARNING*: This package is a work in progress. Its API may still break in backwards-incompatible ways without warnings. Use it at your own risk. [![GoDoc](https://godoc.org/github.com/prometheus/procfs?status.png)](https://godoc.org/github.com/prometheus/procfs) [![Build Status](https://travis-ci.org/prometheus/procfs.svg?branch=master)](https://travis-ci.org/prometheus/procfs) golang-procfs-0+git20161206.fcdb11c/doc.go000066400000000000000000000025041302163476500176630ustar00rootroot00000000000000// Copyright 2014 Prometheus Team // 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 // // http://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. // Package procfs provides functions to retrieve system, kernel and process // metrics from the pseudo-filesystem proc. // // Example: // // package main // // import ( // "fmt" // "log" // // "github.com/prometheus/procfs" // ) // // func main() { // p, err := procfs.Self() // if err != nil { // log.Fatalf("could not get process: %s", err) // } // // stat, err := p.NewStat() // if err != nil { // log.Fatalf("could not get process stat: %s", err) // } // // fmt.Printf("command: %s\n", stat.Comm) // fmt.Printf("cpu time: %fs\n", stat.CPUTime()) // fmt.Printf("vsize: %dB\n", stat.VirtualMemory()) // fmt.Printf("rss: %dB\n", stat.ResidentMemory()) // } // package procfs golang-procfs-0+git20161206.fcdb11c/fixtures/000077500000000000000000000000001302163476500204375ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/000077500000000000000000000000001302163476500211145ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/cmdline000066400000000000000000000000201302163476500224420ustar00rootroot00000000000000vimtest.go+10golang-procfs-0+git20161206.fcdb11c/fixtures/26231/comm000066400000000000000000000000041302163476500217640ustar00rootroot00000000000000vim golang-procfs-0+git20161206.fcdb11c/fixtures/26231/exe000077700000000000000000000000001302163476500237712/usr/bin/vimustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/fd/000077500000000000000000000000001302163476500215055ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/fd/0000077700000000000000000000000001302163476500257402../../symlinktargets/abcustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/fd/1000077700000000000000000000000001302163476500257522../../symlinktargets/defustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/fd/10000077700000000000000000000000001302163476500261262../../symlinktargets/xyzustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/fd/2000077700000000000000000000000001302163476500257642../../symlinktargets/ghiustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/fd/3000077700000000000000000000000001302163476500260372../../symlinktargets/uvwustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26231/io000066400000000000000000000001641302163476500214470ustar00rootroot00000000000000rchar: 750339 wchar: 818609 syscr: 7405 syscw: 5245 read_bytes: 1024 write_bytes: 2048 cancelled_write_bytes: -1024 golang-procfs-0+git20161206.fcdb11c/fixtures/26231/limits000066400000000000000000000022751302163476500223460ustar00rootroot00000000000000Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max stack size 8388608 unlimited bytes Max core file size 0 unlimited bytes Max resident set unlimited unlimited bytes Max processes 62898 62898 processes Max open files 2048 4096 files Max locked memory 65536 65536 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 62898 62898 signals Max msgqueue size 819200 819200 bytes Max nice priority 0 0 Max realtime priority 0 0 Max realtime timeout unlimited unlimited us golang-procfs-0+git20161206.fcdb11c/fixtures/26231/mountstats000066400000000000000000000017541302163476500232670ustar00rootroot00000000000000device rootfs mounted on / with fstype rootfs device sysfs mounted on /sys with fstype sysfs device proc mounted on /proc with fstype proc device /dev/sda1 mounted on / with fstype ext4 device 192.168.1.1:/srv/test mounted on /mnt/nfs/test with fstype nfs4 statvers=1.1 opts: rw,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,acregmin=3,acregmax=60,acdirmin=30,acdirmax=60,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.1.5,local_lock=none age: 13968 caps: caps=0xfff7,wtmult=512,dtsize=32768,bsize=0,namlen=255 nfsv4: bm0=0xfdffafff,bm1=0xf9be3e,bm2=0x0,acl=0x0,pnfs=not configured sec: flavor=1,pseudoflavor=1 events: 52 226 0 0 1 13 398 0 0 331 0 47 0 0 77 0 0 77 0 0 0 0 0 0 0 0 0 bytes: 1207640230 0 0 0 1210214218 0 295483 0 RPC iostats version: 1.0 p/v: 100003/4 (nfs) xprt: tcp 832 0 1 0 11 6428 6428 0 12154 0 24 26 5726 per-op statistics NULL: 0 0 0 0 0 0 0 0 READ: 1298 1298 0 207680 1210292152 6 79386 79407 WRITE: 0 0 0 0 0 0 0 0 golang-procfs-0+git20161206.fcdb11c/fixtures/26231/stat000066400000000000000000000005121302163476500220100ustar00rootroot0000000000000026231 (vim) R 5392 7446 5392 34835 7446 4218880 32533 309516 26 82 1677 44 158 99 20 0 1 0 82375 56274944 1981 18446744073709551615 4194304 6294284 140736914091744 140736914087944 139965136429984 0 0 12288 1870679807 0 0 0 17 0 0 0 31 0 0 8391624 8481048 16420864 140736914093252 140736914093279 140736914093279 140736914096107 0 golang-procfs-0+git20161206.fcdb11c/fixtures/26232/000077500000000000000000000000001302163476500211155ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26232/cmdline000066400000000000000000000000001302163476500224410ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26232/comm000066400000000000000000000000101302163476500217620ustar00rootroot00000000000000ata_sff golang-procfs-0+git20161206.fcdb11c/fixtures/26232/fd/000077500000000000000000000000001302163476500215065ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26232/fd/0000077700000000000000000000000001302163476500257412../../symlinktargets/abcustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26232/fd/1000077700000000000000000000000001302163476500257532../../symlinktargets/defustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26232/fd/2000077700000000000000000000000001302163476500257652../../symlinktargets/ghiustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26232/fd/3000077700000000000000000000000001302163476500260402../../symlinktargets/uvwustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26232/fd/4000077700000000000000000000000001302163476500260522../../symlinktargets/xyzustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/26232/limits000066400000000000000000000024531302163476500223450ustar00rootroot00000000000000Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max stack size 8388608 unlimited bytes Max core file size 0 unlimited bytes Max resident set unlimited unlimited bytes Max processes 29436 29436 processes Max open files 1024 4096 files Max locked memory 65536 65536 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 29436 29436 signals Max msgqueue size 819200 819200 bytes Max nice priority 0 0 Max realtime priority 0 0 Max realtime timeout unlimited unlimited us golang-procfs-0+git20161206.fcdb11c/fixtures/26232/stat000066400000000000000000000002531302163476500220130ustar00rootroot0000000000000033 (ata_sff) S 2 0 0 0 -1 69238880 0 0 0 0 0 0 0 0 0 -20 1 0 5 0 0 18446744073709551615 0 0 0 0 0 0 0 2147483647 0 18446744073709551615 0 0 17 1 0 0 0 0 0 0 0 0 0 0 0 0 0 golang-procfs-0+git20161206.fcdb11c/fixtures/584/000077500000000000000000000000001302163476500207575ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/584/stat000066400000000000000000000005251302163476500216570ustar00rootroot000000000000001020 ((a b ) ( c d) ) R 28378 1020 28378 34842 1020 4218880 286 0 0 0 0 0 0 0 20 0 1 0 10839175 10395648 155 18446744073709551615 4194304 4238788 140736466511168 140736466511168 140609271124624 0 0 0 0 0 0 0 17 5 0 0 0 0 0 6336016 6337300 25579520 140736466515030 140736466515061 140736466515061 140736466518002 0 #!/bin/cat /proc/self/stat golang-procfs-0+git20161206.fcdb11c/fixtures/mdstat000066400000000000000000000020131302163476500216520ustar00rootroot00000000000000Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md3 : active raid6 sda1[8] sdh1[7] sdg1[6] sdf1[5] sde1[11] sdd1[3] sdc1[10] sdb1[9] 5853468288 blocks super 1.2 level 6, 64k chunk, algorithm 2 [8/8] [UUUUUUUU] md127 : active raid1 sdi2[0] sdj2[1] 312319552 blocks [2/2] [UU] md0 : active raid1 sdk[2](S) sdi1[0] sdj1[1] 248896 blocks [2/2] [UU] md4 : inactive raid1 sda3[0] sdb3[1] 4883648 blocks [2/2] [UU] md6 : active raid1 sdb2[2] sda2[0] 195310144 blocks [2/1] [U_] [=>...................] recovery = 8.5% (16775552/195310144) finish=17.0min speed=259783K/sec md8 : active raid1 sdb1[1] sda1[0] 195310144 blocks [2/2] [UU] [=>...................] resync = 8.5% (16775552/195310144) finish=17.0min speed=259783K/sec md7 : active raid6 sdb1[0] sde1[3] sdd1[2] sdc1[1] 7813735424 blocks super 1.2 level 6, 512k chunk, algorithm 2 [4/3] [U_UU] bitmap: 0/30 pages [0KB], 65536KB chunk unused devices: golang-procfs-0+git20161206.fcdb11c/fixtures/net/000077500000000000000000000000001302163476500212255ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/net/ip_vs000066400000000000000000000013021302163476500222640ustar00rootroot00000000000000IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP C0A80016:0CEA wlc -> C0A85216:0CEA Tunnel 100 248 2 -> C0A85318:0CEA Tunnel 100 248 2 -> C0A85315:0CEA Tunnel 100 248 1 TCP C0A80039:0CEA wlc -> C0A85416:0CEA Tunnel 0 0 0 -> C0A85215:0CEA Tunnel 100 1499 0 -> C0A83215:0CEA Tunnel 100 1498 0 TCP C0A80037:0CEA wlc -> C0A8321A:0CEA Tunnel 0 0 0 -> C0A83120:0CEA Tunnel 100 0 0 golang-procfs-0+git20161206.fcdb11c/fixtures/net/ip_vs_stats000066400000000000000000000004621302163476500235100ustar00rootroot00000000000000 Total Incoming Outgoing Incoming Outgoing Conns Packets Packets Bytes Bytes 16AA370 E33656E5 0 51D8C8883AB3 0 Conns/s Pkts/s Pkts/s Bytes/s Bytes/s 4 1FB3C 0 1282A8F 0 golang-procfs-0+git20161206.fcdb11c/fixtures/self00007770000000000000000000000000130216347650021706226231ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/stat000066400000000000000000000040561302163476500213420ustar00rootroot00000000000000cpu 301854 612 111922 8979004 3552 2 3944 0 0 0 cpu0 44490 19 21045 1087069 220 1 3410 0 0 0 cpu1 47869 23 16474 1110787 591 0 46 0 0 0 cpu2 46504 36 15916 1112321 441 0 326 0 0 0 cpu3 47054 102 15683 1113230 533 0 60 0 0 0 cpu4 28413 25 10776 1140321 217 0 8 0 0 0 cpu5 29271 101 11586 1136270 672 0 30 0 0 0 cpu6 29152 36 10276 1139721 319 0 29 0 0 0 cpu7 29098 268 10164 1139282 555 0 31 0 0 0 intr 8885917 17 0 0 0 0 0 0 0 1 79281 0 0 0 0 0 0 0 231237 0 0 0 0 250586 103 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 223424 190745 13 906 1283803 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ctxt 38014093 btime 1418183276 processes 26442 procs_running 2 procs_blocked 0 softirq 5057579 250191 1481983 1647 211099 186066 0 1783454 622196 12499 508444 golang-procfs-0+git20161206.fcdb11c/fixtures/symlinktargets/000077500000000000000000000000001302163476500235175ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/symlinktargets/README000066400000000000000000000002211302163476500243720ustar00rootroot00000000000000This directory contains some empty files that are the symlinks the files in the "fd" directory point to. They are otherwise ignored by the tests golang-procfs-0+git20161206.fcdb11c/fixtures/symlinktargets/abc000066400000000000000000000000001302163476500241550ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/symlinktargets/def000066400000000000000000000000001302163476500241660ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/symlinktargets/ghi000066400000000000000000000000001302163476500241770ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/symlinktargets/uvw000066400000000000000000000000001302163476500242510ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fixtures/symlinktargets/xyz000066400000000000000000000000001302163476500242620ustar00rootroot00000000000000golang-procfs-0+git20161206.fcdb11c/fs.go000066400000000000000000000015271302163476500175320ustar00rootroot00000000000000package procfs import ( "fmt" "os" "path" ) // FS represents the pseudo-filesystem proc, which provides an interface to // kernel data structures. type FS string // DefaultMountPoint is the common mount point of the proc filesystem. const DefaultMountPoint = "/proc" // NewFS returns a new FS mounted under the given mountPoint. It will error // if the mount point can't be read. func NewFS(mountPoint string) (FS, error) { info, err := os.Stat(mountPoint) if err != nil { return "", fmt.Errorf("could not read %s: %s", mountPoint, err) } if !info.IsDir() { return "", fmt.Errorf("mount point %s is not a directory", mountPoint) } return FS(mountPoint), nil } // Path returns the path of the given subsystem relative to the procfs root. func (fs FS) Path(p ...string) string { return path.Join(append([]string{string(fs)}, p...)...) } golang-procfs-0+git20161206.fcdb11c/fs_test.go000066400000000000000000000004441302163476500205660ustar00rootroot00000000000000package procfs import "testing" func TestNewFS(t *testing.T) { if _, err := NewFS("foobar"); err == nil { t.Error("want NewFS to fail for non-existing mount point") } if _, err := NewFS("procfs.go"); err == nil { t.Error("want NewFS to fail if mount point is not a directory") } } golang-procfs-0+git20161206.fcdb11c/ipvs.go000066400000000000000000000124731302163476500201050ustar00rootroot00000000000000package procfs import ( "bufio" "encoding/hex" "errors" "fmt" "io" "io/ioutil" "net" "os" "strconv" "strings" ) // IPVSStats holds IPVS statistics, as exposed by the kernel in `/proc/net/ip_vs_stats`. type IPVSStats struct { // Total count of connections. Connections uint64 // Total incoming packages processed. IncomingPackets uint64 // Total outgoing packages processed. OutgoingPackets uint64 // Total incoming traffic. IncomingBytes uint64 // Total outgoing traffic. OutgoingBytes uint64 } // IPVSBackendStatus holds current metrics of one virtual / real address pair. type IPVSBackendStatus struct { // The local (virtual) IP address. LocalAddress net.IP // The local (virtual) port. LocalPort uint16 // The transport protocol (TCP, UDP). Proto string // The remote (real) IP address. RemoteAddress net.IP // The remote (real) port. RemotePort uint16 // The current number of active connections for this virtual/real address pair. ActiveConn uint64 // The current number of inactive connections for this virtual/real address pair. InactConn uint64 // The current weight of this virtual/real address pair. Weight uint64 } // NewIPVSStats reads the IPVS statistics. func NewIPVSStats() (IPVSStats, error) { fs, err := NewFS(DefaultMountPoint) if err != nil { return IPVSStats{}, err } return fs.NewIPVSStats() } // NewIPVSStats reads the IPVS statistics from the specified `proc` filesystem. func (fs FS) NewIPVSStats() (IPVSStats, error) { file, err := os.Open(fs.Path("net/ip_vs_stats")) if err != nil { return IPVSStats{}, err } defer file.Close() return parseIPVSStats(file) } // parseIPVSStats performs the actual parsing of `ip_vs_stats`. func parseIPVSStats(file io.Reader) (IPVSStats, error) { var ( statContent []byte statLines []string statFields []string stats IPVSStats ) statContent, err := ioutil.ReadAll(file) if err != nil { return IPVSStats{}, err } statLines = strings.SplitN(string(statContent), "\n", 4) if len(statLines) != 4 { return IPVSStats{}, errors.New("ip_vs_stats corrupt: too short") } statFields = strings.Fields(statLines[2]) if len(statFields) != 5 { return IPVSStats{}, errors.New("ip_vs_stats corrupt: unexpected number of fields") } stats.Connections, err = strconv.ParseUint(statFields[0], 16, 64) if err != nil { return IPVSStats{}, err } stats.IncomingPackets, err = strconv.ParseUint(statFields[1], 16, 64) if err != nil { return IPVSStats{}, err } stats.OutgoingPackets, err = strconv.ParseUint(statFields[2], 16, 64) if err != nil { return IPVSStats{}, err } stats.IncomingBytes, err = strconv.ParseUint(statFields[3], 16, 64) if err != nil { return IPVSStats{}, err } stats.OutgoingBytes, err = strconv.ParseUint(statFields[4], 16, 64) if err != nil { return IPVSStats{}, err } return stats, nil } // NewIPVSBackendStatus reads and returns the status of all (virtual,real) server pairs. func NewIPVSBackendStatus() ([]IPVSBackendStatus, error) { fs, err := NewFS(DefaultMountPoint) if err != nil { return []IPVSBackendStatus{}, err } return fs.NewIPVSBackendStatus() } // NewIPVSBackendStatus reads and returns the status of all (virtual,real) server pairs from the specified `proc` filesystem. func (fs FS) NewIPVSBackendStatus() ([]IPVSBackendStatus, error) { file, err := os.Open(fs.Path("net/ip_vs")) if err != nil { return nil, err } defer file.Close() return parseIPVSBackendStatus(file) } func parseIPVSBackendStatus(file io.Reader) ([]IPVSBackendStatus, error) { var ( status []IPVSBackendStatus scanner = bufio.NewScanner(file) proto string localAddress net.IP localPort uint16 err error ) for scanner.Scan() { fields := strings.Fields(string(scanner.Text())) if len(fields) == 0 { continue } switch { case fields[0] == "IP" || fields[0] == "Prot" || fields[1] == "RemoteAddress:Port": continue case fields[0] == "TCP" || fields[0] == "UDP": if len(fields) < 2 { continue } proto = fields[0] localAddress, localPort, err = parseIPPort(fields[1]) if err != nil { return nil, err } case fields[0] == "->": if len(fields) < 6 { continue } remoteAddress, remotePort, err := parseIPPort(fields[1]) if err != nil { return nil, err } weight, err := strconv.ParseUint(fields[3], 10, 64) if err != nil { return nil, err } activeConn, err := strconv.ParseUint(fields[4], 10, 64) if err != nil { return nil, err } inactConn, err := strconv.ParseUint(fields[5], 10, 64) if err != nil { return nil, err } status = append(status, IPVSBackendStatus{ LocalAddress: localAddress, LocalPort: localPort, RemoteAddress: remoteAddress, RemotePort: remotePort, Proto: proto, Weight: weight, ActiveConn: activeConn, InactConn: inactConn, }) } } return status, nil } func parseIPPort(s string) (net.IP, uint16, error) { tmp := strings.SplitN(s, ":", 2) if len(tmp) != 2 { return nil, 0, fmt.Errorf("invalid IP:Port: %s", s) } if len(tmp[0]) != 8 && len(tmp[0]) != 32 { return nil, 0, fmt.Errorf("invalid IP: %s", tmp[0]) } ip, err := hex.DecodeString(tmp[0]) if err != nil { return nil, 0, err } port, err := strconv.ParseUint(tmp[1], 16, 16) if err != nil { return nil, 0, err } return ip, uint16(port), nil } golang-procfs-0+git20161206.fcdb11c/ipvs_test.go000066400000000000000000000120071302163476500211350ustar00rootroot00000000000000package procfs import ( "net" "testing" ) var ( expectedIPVSStats = IPVSStats{ Connections: 23765872, IncomingPackets: 3811989221, OutgoingPackets: 0, IncomingBytes: 89991519156915, OutgoingBytes: 0, } expectedIPVSBackendStatuses = []IPVSBackendStatus{ IPVSBackendStatus{ LocalAddress: net.ParseIP("192.168.0.22"), LocalPort: 3306, RemoteAddress: net.ParseIP("192.168.82.22"), RemotePort: 3306, Proto: "TCP", Weight: 100, ActiveConn: 248, InactConn: 2, }, IPVSBackendStatus{ LocalAddress: net.ParseIP("192.168.0.22"), LocalPort: 3306, RemoteAddress: net.ParseIP("192.168.83.24"), RemotePort: 3306, Proto: "TCP", Weight: 100, ActiveConn: 248, InactConn: 2, }, IPVSBackendStatus{ LocalAddress: net.ParseIP("192.168.0.22"), LocalPort: 3306, RemoteAddress: net.ParseIP("192.168.83.21"), RemotePort: 3306, Proto: "TCP", Weight: 100, ActiveConn: 248, InactConn: 1, }, IPVSBackendStatus{ LocalAddress: net.ParseIP("192.168.0.57"), LocalPort: 3306, RemoteAddress: net.ParseIP("192.168.84.22"), RemotePort: 3306, Proto: "TCP", Weight: 0, ActiveConn: 0, InactConn: 0, }, IPVSBackendStatus{ LocalAddress: net.ParseIP("192.168.0.57"), LocalPort: 3306, RemoteAddress: net.ParseIP("192.168.82.21"), RemotePort: 3306, Proto: "TCP", Weight: 100, ActiveConn: 1499, InactConn: 0, }, IPVSBackendStatus{ LocalAddress: net.ParseIP("192.168.0.57"), LocalPort: 3306, RemoteAddress: net.ParseIP("192.168.50.21"), RemotePort: 3306, Proto: "TCP", Weight: 100, ActiveConn: 1498, InactConn: 0, }, IPVSBackendStatus{ LocalAddress: net.ParseIP("192.168.0.55"), LocalPort: 3306, RemoteAddress: net.ParseIP("192.168.50.26"), RemotePort: 3306, Proto: "TCP", Weight: 0, ActiveConn: 0, InactConn: 0, }, IPVSBackendStatus{ LocalAddress: net.ParseIP("192.168.0.55"), LocalPort: 3306, RemoteAddress: net.ParseIP("192.168.49.32"), RemotePort: 3306, Proto: "TCP", Weight: 100, ActiveConn: 0, InactConn: 0, }, } ) func TestIPVSStats(t *testing.T) { stats, err := FS("fixtures").NewIPVSStats() if err != nil { t.Fatal(err) } if stats != expectedIPVSStats { t.Errorf("want %+v, have %+v", expectedIPVSStats, stats) } } func TestParseIPPort(t *testing.T) { ip := net.ParseIP("192.168.0.22") port := uint16(3306) gotIP, gotPort, err := parseIPPort("C0A80016:0CEA") if err != nil { t.Fatal(err) } if !(gotIP.Equal(ip) && port == gotPort) { t.Errorf("want %s:%d, have %s:%d", ip, port, gotIP, gotPort) } } func TestParseIPPortInvalid(t *testing.T) { testcases := []string{ "", "C0A80016", "C0A800:1234", "FOOBARBA:1234", "C0A80016:0CEA:1234", } for _, s := range testcases { ip, port, err := parseIPPort(s) if ip != nil || port != uint16(0) || err == nil { t.Errorf("Expected error for input %s, have ip = %s, port = %v, err = %v", s, ip, port, err) } } } func TestParseIPPortIPv6(t *testing.T) { ip := net.ParseIP("dead:beef::1") port := uint16(8080) gotIP, gotPort, err := parseIPPort("DEADBEEF000000000000000000000001:1F90") if err != nil { t.Fatal(err) } if !(gotIP.Equal(ip) && port == gotPort) { t.Errorf("want %s:%d, have %s:%d", ip, port, gotIP, gotPort) } } func TestIPVSBackendStatus(t *testing.T) { backendStats, err := FS("fixtures").NewIPVSBackendStatus() if err != nil { t.Fatal(err) } if want, have := len(expectedIPVSBackendStatuses), len(backendStats); want != have { t.Fatalf("want %d backend statuses, have %d", want, have) } for idx, expect := range expectedIPVSBackendStatuses { if !backendStats[idx].LocalAddress.Equal(expect.LocalAddress) { t.Errorf("want LocalAddress %s, have %s", expect.LocalAddress, backendStats[idx].LocalAddress) } if backendStats[idx].LocalPort != expect.LocalPort { t.Errorf("want LocalPort %d, have %d", expect.LocalPort, backendStats[idx].LocalPort) } if !backendStats[idx].RemoteAddress.Equal(expect.RemoteAddress) { t.Errorf("want RemoteAddress %s, have %s", expect.RemoteAddress, backendStats[idx].RemoteAddress) } if backendStats[idx].RemotePort != expect.RemotePort { t.Errorf("want RemotePort %d, have %d", expect.RemotePort, backendStats[idx].RemotePort) } if backendStats[idx].Proto != expect.Proto { t.Errorf("want Proto %s, have %s", expect.Proto, backendStats[idx].Proto) } if backendStats[idx].Weight != expect.Weight { t.Errorf("want Weight %d, have %d", expect.Weight, backendStats[idx].Weight) } if backendStats[idx].ActiveConn != expect.ActiveConn { t.Errorf("want ActiveConn %d, have %d", expect.ActiveConn, backendStats[idx].ActiveConn) } if backendStats[idx].InactConn != expect.InactConn { t.Errorf("want InactConn %d, have %d", expect.InactConn, backendStats[idx].InactConn) } } } golang-procfs-0+git20161206.fcdb11c/mdstat.go000066400000000000000000000070341302163476500204150ustar00rootroot00000000000000package procfs import ( "fmt" "io/ioutil" "regexp" "strconv" "strings" ) var ( statuslineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[[U_]+\]`) buildlineRE = regexp.MustCompile(`\((\d+)/\d+\)`) ) // MDStat holds info parsed from /proc/mdstat. type MDStat struct { // Name of the device. Name string // activity-state of the device. ActivityState string // Number of active disks. DisksActive int64 // Total number of disks the device consists of. DisksTotal int64 // Number of blocks the device holds. BlocksTotal int64 // Number of blocks on the device that are in sync. BlocksSynced int64 } // ParseMDStat parses an mdstat-file and returns a struct with the relevant infos. func (fs FS) ParseMDStat() (mdstates []MDStat, err error) { mdStatusFilePath := fs.Path("mdstat") content, err := ioutil.ReadFile(mdStatusFilePath) if err != nil { return []MDStat{}, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err) } mdStates := []MDStat{} lines := strings.Split(string(content), "\n") for i, l := range lines { if l == "" { continue } if l[0] == ' ' { continue } if strings.HasPrefix(l, "Personalities") || strings.HasPrefix(l, "unused") { continue } mainLine := strings.Split(l, " ") if len(mainLine) < 3 { return mdStates, fmt.Errorf("error parsing mdline: %s", l) } mdName := mainLine[0] activityState := mainLine[2] if len(lines) <= i+3 { return mdStates, fmt.Errorf( "error parsing %s: too few lines for md device %s", mdStatusFilePath, mdName, ) } active, total, size, err := evalStatusline(lines[i+1]) if err != nil { return mdStates, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err) } // j is the line number of the syncing-line. j := i + 2 if strings.Contains(lines[i+2], "bitmap") { // skip bitmap line j = i + 3 } // If device is syncing at the moment, get the number of currently // synced bytes, otherwise that number equals the size of the device. syncedBlocks := size if strings.Contains(lines[j], "recovery") || strings.Contains(lines[j], "resync") { syncedBlocks, err = evalBuildline(lines[j]) if err != nil { return mdStates, fmt.Errorf("error parsing %s: %s", mdStatusFilePath, err) } } mdStates = append(mdStates, MDStat{ Name: mdName, ActivityState: activityState, DisksActive: active, DisksTotal: total, BlocksTotal: size, BlocksSynced: syncedBlocks, }) } return mdStates, nil } func evalStatusline(statusline string) (active, total, size int64, err error) { matches := statuslineRE.FindStringSubmatch(statusline) if len(matches) != 4 { return 0, 0, 0, fmt.Errorf("unexpected statusline: %s", statusline) } size, err = strconv.ParseInt(matches[1], 10, 64) if err != nil { return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err) } total, err = strconv.ParseInt(matches[2], 10, 64) if err != nil { return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err) } active, err = strconv.ParseInt(matches[3], 10, 64) if err != nil { return 0, 0, 0, fmt.Errorf("unexpected statusline %s: %s", statusline, err) } return active, total, size, nil } func evalBuildline(buildline string) (syncedBlocks int64, err error) { matches := buildlineRE.FindStringSubmatch(buildline) if len(matches) != 2 { return 0, fmt.Errorf("unexpected buildline: %s", buildline) } syncedBlocks, err = strconv.ParseInt(matches[1], 10, 64) if err != nil { return 0, fmt.Errorf("%s in buildline: %s", err, buildline) } return syncedBlocks, nil } golang-procfs-0+git20161206.fcdb11c/mdstat_test.go000066400000000000000000000016711302163476500214550ustar00rootroot00000000000000package procfs import ( "testing" ) func TestMDStat(t *testing.T) { mdStates, err := FS("fixtures").ParseMDStat() if err != nil { t.Fatalf("parsing of reference-file failed entirely: %s", err) } refs := map[string]MDStat{ "md3": MDStat{"md3", "active", 8, 8, 5853468288, 5853468288}, "md127": MDStat{"md127", "active", 2, 2, 312319552, 312319552}, "md0": MDStat{"md0", "active", 2, 2, 248896, 248896}, "md4": MDStat{"md4", "inactive", 2, 2, 4883648, 4883648}, "md6": MDStat{"md6", "active", 1, 2, 195310144, 16775552}, "md8": MDStat{"md8", "active", 2, 2, 195310144, 16775552}, "md7": MDStat{"md7", "active", 3, 4, 7813735424, 7813735424}, } if want, have := len(refs), len(mdStates); want != have { t.Errorf("want %d parsed md-devices, have %d", want, have) } for _, md := range mdStates { if want, have := refs[md.Name], md; want != have { t.Errorf("%s: want %v, have %v", md.Name, want, have) } } } golang-procfs-0+git20161206.fcdb11c/mountstats.go000066400000000000000000000367721302163476500213550ustar00rootroot00000000000000package procfs // While implementing parsing of /proc/[pid]/mountstats, this blog was used // heavily as a reference: // https://utcc.utoronto.ca/~cks/space/blog/linux/NFSMountstatsIndex // // Special thanks to Chris Siebenmann for all of his posts explaining the // various statistics available for NFS. import ( "bufio" "fmt" "io" "strconv" "strings" "time" ) // Constants shared between multiple functions. const ( deviceEntryLen = 8 fieldBytesLen = 8 fieldEventsLen = 27 statVersion10 = "1.0" statVersion11 = "1.1" fieldTransport10Len = 10 fieldTransport11Len = 13 ) // A Mount is a device mount parsed from /proc/[pid]/mountstats. type Mount struct { // Name of the device. Device string // The mount point of the device. Mount string // The filesystem type used by the device. Type string // If available additional statistics related to this Mount. // Use a type assertion to determine if additional statistics are available. Stats MountStats } // A MountStats is a type which contains detailed statistics for a specific // type of Mount. type MountStats interface { mountStats() } // A MountStatsNFS is a MountStats implementation for NFSv3 and v4 mounts. type MountStatsNFS struct { // The version of statistics provided. StatVersion string // The age of the NFS mount. Age time.Duration // Statistics related to byte counters for various operations. Bytes NFSBytesStats // Statistics related to various NFS event occurrences. Events NFSEventsStats // Statistics broken down by filesystem operation. Operations []NFSOperationStats // Statistics about the NFS RPC transport. Transport NFSTransportStats } // mountStats implements MountStats. func (m MountStatsNFS) mountStats() {} // A NFSBytesStats contains statistics about the number of bytes read and written // by an NFS client to and from an NFS server. type NFSBytesStats struct { // Number of bytes read using the read() syscall. Read int // Number of bytes written using the write() syscall. Write int // Number of bytes read using the read() syscall in O_DIRECT mode. DirectRead int // Number of bytes written using the write() syscall in O_DIRECT mode. DirectWrite int // Number of bytes read from the NFS server, in total. ReadTotal int // Number of bytes written to the NFS server, in total. WriteTotal int // Number of pages read directly via mmap()'d files. ReadPages int // Number of pages written directly via mmap()'d files. WritePages int } // A NFSEventsStats contains statistics about NFS event occurrences. type NFSEventsStats struct { // Number of times cached inode attributes are re-validated from the server. InodeRevalidate int // Number of times cached dentry nodes are re-validated from the server. DnodeRevalidate int // Number of times an inode cache is cleared. DataInvalidate int // Number of times cached inode attributes are invalidated. AttributeInvalidate int // Number of times files or directories have been open()'d. VFSOpen int // Number of times a directory lookup has occurred. VFSLookup int // Number of times permissions have been checked. VFSAccess int // Number of updates (and potential writes) to pages. VFSUpdatePage int // Number of pages read directly via mmap()'d files. VFSReadPage int // Number of times a group of pages have been read. VFSReadPages int // Number of pages written directly via mmap()'d files. VFSWritePage int // Number of times a group of pages have been written. VFSWritePages int // Number of times directory entries have been read with getdents(). VFSGetdents int // Number of times attributes have been set on inodes. VFSSetattr int // Number of pending writes that have been forcefully flushed to the server. VFSFlush int // Number of times fsync() has been called on directories and files. VFSFsync int // Number of times locking has been attemped on a file. VFSLock int // Number of times files have been closed and released. VFSFileRelease int // Unknown. Possibly unused. CongestionWait int // Number of times files have been truncated. Truncation int // Number of times a file has been grown due to writes beyond its existing end. WriteExtension int // Number of times a file was removed while still open by another process. SillyRename int // Number of times the NFS server gave less data than expected while reading. ShortRead int // Number of times the NFS server wrote less data than expected while writing. ShortWrite int // Number of times the NFS server indicated EJUKEBOX; retrieving data from // offline storage. JukeboxDelay int // Number of NFS v4.1+ pNFS reads. PNFSRead int // Number of NFS v4.1+ pNFS writes. PNFSWrite int } // A NFSOperationStats contains statistics for a single operation. type NFSOperationStats struct { // The name of the operation. Operation string // Number of requests performed for this operation. Requests int // Number of times an actual RPC request has been transmitted for this operation. Transmissions int // Number of times a request has had a major timeout. MajorTimeouts int // Number of bytes sent for this operation, including RPC headers and payload. BytesSent int // Number of bytes received for this operation, including RPC headers and payload. BytesReceived int // Duration all requests spent queued for transmission before they were sent. CumulativeQueueTime time.Duration // Duration it took to get a reply back after the request was transmitted. CumulativeTotalResponseTime time.Duration // Duration from when a request was enqueued to when it was completely handled. CumulativeTotalRequestTime time.Duration } // A NFSTransportStats contains statistics for the NFS mount RPC requests and // responses. type NFSTransportStats struct { // The local port used for the NFS mount. Port int // Number of times the client has had to establish a connection from scratch // to the NFS server. Bind int // Number of times the client has made a TCP connection to the NFS server. Connect int // Duration (in jiffies, a kernel internal unit of time) the NFS mount has // spent waiting for connections to the server to be established. ConnectIdleTime int // Duration since the NFS mount last saw any RPC traffic. IdleTime time.Duration // Number of RPC requests for this mount sent to the NFS server. Sends int // Number of RPC responses for this mount received from the NFS server. Receives int // Number of times the NFS server sent a response with a transaction ID // unknown to this client. BadTransactionIDs int // A running counter, incremented on each request as the current difference // ebetween sends and receives. CumulativeActiveRequests int // A running counter, incremented on each request by the current backlog // queue size. CumulativeBacklog int // Stats below only available with stat version 1.1. // Maximum number of simultaneously active RPC requests ever used. MaximumRPCSlotsUsed int // A running counter, incremented on each request as the current size of the // sending queue. CumulativeSendingQueue int // A running counter, incremented on each request as the current size of the // pending queue. CumulativePendingQueue int } // parseMountStats parses a /proc/[pid]/mountstats file and returns a slice // of Mount structures containing detailed information about each mount. // If available, statistics for each mount are parsed as well. func parseMountStats(r io.Reader) ([]*Mount, error) { const ( device = "device" statVersionPrefix = "statvers=" nfs3Type = "nfs" nfs4Type = "nfs4" ) var mounts []*Mount s := bufio.NewScanner(r) for s.Scan() { // Only look for device entries in this function ss := strings.Fields(string(s.Bytes())) if len(ss) == 0 || ss[0] != device { continue } m, err := parseMount(ss) if err != nil { return nil, err } // Does this mount also possess statistics information? if len(ss) > deviceEntryLen { // Only NFSv3 and v4 are supported for parsing statistics if m.Type != nfs3Type && m.Type != nfs4Type { return nil, fmt.Errorf("cannot parse MountStats for fstype %q", m.Type) } statVersion := strings.TrimPrefix(ss[8], statVersionPrefix) stats, err := parseMountStatsNFS(s, statVersion) if err != nil { return nil, err } m.Stats = stats } mounts = append(mounts, m) } return mounts, s.Err() } // parseMount parses an entry in /proc/[pid]/mountstats in the format: // device [device] mounted on [mount] with fstype [type] func parseMount(ss []string) (*Mount, error) { if len(ss) < deviceEntryLen { return nil, fmt.Errorf("invalid device entry: %v", ss) } // Check for specific words appearing at specific indices to ensure // the format is consistent with what we expect format := []struct { i int s string }{ {i: 0, s: "device"}, {i: 2, s: "mounted"}, {i: 3, s: "on"}, {i: 5, s: "with"}, {i: 6, s: "fstype"}, } for _, f := range format { if ss[f.i] != f.s { return nil, fmt.Errorf("invalid device entry: %v", ss) } } return &Mount{ Device: ss[1], Mount: ss[4], Type: ss[7], }, nil } // parseMountStatsNFS parses a MountStatsNFS by scanning additional information // related to NFS statistics. func parseMountStatsNFS(s *bufio.Scanner, statVersion string) (*MountStatsNFS, error) { // Field indicators for parsing specific types of data const ( fieldAge = "age:" fieldBytes = "bytes:" fieldEvents = "events:" fieldPerOpStats = "per-op" fieldTransport = "xprt:" ) stats := &MountStatsNFS{ StatVersion: statVersion, } for s.Scan() { ss := strings.Fields(string(s.Bytes())) if len(ss) == 0 { break } if len(ss) < 2 { return nil, fmt.Errorf("not enough information for NFS stats: %v", ss) } switch ss[0] { case fieldAge: // Age integer is in seconds d, err := time.ParseDuration(ss[1] + "s") if err != nil { return nil, err } stats.Age = d case fieldBytes: bstats, err := parseNFSBytesStats(ss[1:]) if err != nil { return nil, err } stats.Bytes = *bstats case fieldEvents: estats, err := parseNFSEventsStats(ss[1:]) if err != nil { return nil, err } stats.Events = *estats case fieldTransport: if len(ss) < 3 { return nil, fmt.Errorf("not enough information for NFS transport stats: %v", ss) } tstats, err := parseNFSTransportStats(ss[2:], statVersion) if err != nil { return nil, err } stats.Transport = *tstats } // When encountering "per-operation statistics", we must break this // loop and parse them seperately to ensure we can terminate parsing // before reaching another device entry; hence why this 'if' statement // is not just another switch case if ss[0] == fieldPerOpStats { break } } if err := s.Err(); err != nil { return nil, err } // NFS per-operation stats appear last before the next device entry perOpStats, err := parseNFSOperationStats(s) if err != nil { return nil, err } stats.Operations = perOpStats return stats, nil } // parseNFSBytesStats parses a NFSBytesStats line using an input set of // integer fields. func parseNFSBytesStats(ss []string) (*NFSBytesStats, error) { if len(ss) != fieldBytesLen { return nil, fmt.Errorf("invalid NFS bytes stats: %v", ss) } ns := make([]int, 0, fieldBytesLen) for _, s := range ss { n, err := strconv.Atoi(s) if err != nil { return nil, err } ns = append(ns, n) } return &NFSBytesStats{ Read: ns[0], Write: ns[1], DirectRead: ns[2], DirectWrite: ns[3], ReadTotal: ns[4], WriteTotal: ns[5], ReadPages: ns[6], WritePages: ns[7], }, nil } // parseNFSEventsStats parses a NFSEventsStats line using an input set of // integer fields. func parseNFSEventsStats(ss []string) (*NFSEventsStats, error) { if len(ss) != fieldEventsLen { return nil, fmt.Errorf("invalid NFS events stats: %v", ss) } ns := make([]int, 0, fieldEventsLen) for _, s := range ss { n, err := strconv.Atoi(s) if err != nil { return nil, err } ns = append(ns, n) } return &NFSEventsStats{ InodeRevalidate: ns[0], DnodeRevalidate: ns[1], DataInvalidate: ns[2], AttributeInvalidate: ns[3], VFSOpen: ns[4], VFSLookup: ns[5], VFSAccess: ns[6], VFSUpdatePage: ns[7], VFSReadPage: ns[8], VFSReadPages: ns[9], VFSWritePage: ns[10], VFSWritePages: ns[11], VFSGetdents: ns[12], VFSSetattr: ns[13], VFSFlush: ns[14], VFSFsync: ns[15], VFSLock: ns[16], VFSFileRelease: ns[17], CongestionWait: ns[18], Truncation: ns[19], WriteExtension: ns[20], SillyRename: ns[21], ShortRead: ns[22], ShortWrite: ns[23], JukeboxDelay: ns[24], PNFSRead: ns[25], PNFSWrite: ns[26], }, nil } // parseNFSOperationStats parses a slice of NFSOperationStats by scanning // additional information about per-operation statistics until an empty // line is reached. func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) { const ( // Number of expected fields in each per-operation statistics set numFields = 9 ) var ops []NFSOperationStats for s.Scan() { ss := strings.Fields(string(s.Bytes())) if len(ss) == 0 { // Must break when reading a blank line after per-operation stats to // enable top-level function to parse the next device entry break } if len(ss) != numFields { return nil, fmt.Errorf("invalid NFS per-operations stats: %v", ss) } // Skip string operation name for integers ns := make([]int, 0, numFields-1) for _, st := range ss[1:] { n, err := strconv.Atoi(st) if err != nil { return nil, err } ns = append(ns, n) } ops = append(ops, NFSOperationStats{ Operation: strings.TrimSuffix(ss[0], ":"), Requests: ns[0], Transmissions: ns[1], MajorTimeouts: ns[2], BytesSent: ns[3], BytesReceived: ns[4], CumulativeQueueTime: time.Duration(ns[5]) * time.Millisecond, CumulativeTotalResponseTime: time.Duration(ns[6]) * time.Millisecond, CumulativeTotalRequestTime: time.Duration(ns[7]) * time.Millisecond, }) } return ops, s.Err() } // parseNFSTransportStats parses a NFSTransportStats line using an input set of // integer fields matched to a specific stats version. func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats, error) { switch statVersion { case statVersion10: if len(ss) != fieldTransport10Len { return nil, fmt.Errorf("invalid NFS transport stats 1.0 statement: %v", ss) } case statVersion11: if len(ss) != fieldTransport11Len { return nil, fmt.Errorf("invalid NFS transport stats 1.1 statement: %v", ss) } default: return nil, fmt.Errorf("unrecognized NFS transport stats version: %q", statVersion) } // Allocate enough for v1.1 stats since zero value for v1.1 stats will be okay // in a v1.0 response ns := make([]int, 0, fieldTransport11Len) for _, s := range ss { n, err := strconv.Atoi(s) if err != nil { return nil, err } ns = append(ns, n) } return &NFSTransportStats{ Port: ns[0], Bind: ns[1], Connect: ns[2], ConnectIdleTime: ns[3], IdleTime: time.Duration(ns[4]) * time.Second, Sends: ns[5], Receives: ns[6], BadTransactionIDs: ns[7], CumulativeActiveRequests: ns[8], CumulativeBacklog: ns[9], MaximumRPCSlotsUsed: ns[10], CumulativeSendingQueue: ns[11], CumulativePendingQueue: ns[12], }, nil } golang-procfs-0+git20161206.fcdb11c/mountstats_test.go000066400000000000000000000142451302163476500224030ustar00rootroot00000000000000package procfs import ( "fmt" "reflect" "strings" "testing" "time" ) func TestMountStats(t *testing.T) { tests := []struct { name string s string fs bool mounts []*Mount invalid bool }{ { name: "no devices", s: `hello`, }, { name: "device has too few fields", s: `device foo`, invalid: true, }, { name: "device incorrect format", s: `device rootfs BAD on / with fstype rootfs`, invalid: true, }, { name: "device incorrect format", s: `device rootfs mounted BAD / with fstype rootfs`, invalid: true, }, { name: "device incorrect format", s: `device rootfs mounted on / BAD fstype rootfs`, invalid: true, }, { name: "device incorrect format", s: `device rootfs mounted on / with BAD rootfs`, invalid: true, }, { name: "device rootfs cannot have stats", s: `device rootfs mounted on / with fstype rootfs stats`, invalid: true, }, { name: "NFSv4 device with too little info", s: "device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs4 statvers=1.1\nhello", invalid: true, }, { name: "NFSv4 device with bad bytes", s: "device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs4 statvers=1.1\nbytes: 0", invalid: true, }, { name: "NFSv4 device with bad events", s: "device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs4 statvers=1.1\nevents: 0", invalid: true, }, { name: "NFSv4 device with bad per-op stats", s: "device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs4 statvers=1.1\nper-op statistics\nFOO 0", invalid: true, }, { name: "NFSv4 device with bad transport stats", s: "device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs4 statvers=1.1\nxprt: tcp", invalid: true, }, { name: "NFSv4 device with bad transport version", s: "device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs4 statvers=foo\nxprt: tcp 0", invalid: true, }, { name: "NFSv4 device with bad transport stats version 1.0", s: "device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs4 statvers=1.0\nxprt: tcp 0 0 0 0 0 0 0 0 0 0 0 0 0", invalid: true, }, { name: "NFSv4 device with bad transport stats version 1.1", s: "device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs4 statvers=1.1\nxprt: tcp 0 0 0 0 0 0 0 0 0 0", invalid: true, }, { name: "device rootfs OK", s: `device rootfs mounted on / with fstype rootfs`, mounts: []*Mount{{ Device: "rootfs", Mount: "/", Type: "rootfs", }}, }, { name: "NFSv3 device with minimal stats OK", s: `device 192.168.1.1:/srv mounted on /mnt/nfs with fstype nfs statvers=1.1`, mounts: []*Mount{{ Device: "192.168.1.1:/srv", Mount: "/mnt/nfs", Type: "nfs", Stats: &MountStatsNFS{ StatVersion: "1.1", }, }}, }, { name: "fixtures OK", fs: true, mounts: []*Mount{ { Device: "rootfs", Mount: "/", Type: "rootfs", }, { Device: "sysfs", Mount: "/sys", Type: "sysfs", }, { Device: "proc", Mount: "/proc", Type: "proc", }, { Device: "/dev/sda1", Mount: "/", Type: "ext4", }, { Device: "192.168.1.1:/srv/test", Mount: "/mnt/nfs/test", Type: "nfs4", Stats: &MountStatsNFS{ StatVersion: "1.1", Age: 13968 * time.Second, Bytes: NFSBytesStats{ Read: 1207640230, ReadTotal: 1210214218, ReadPages: 295483, }, Events: NFSEventsStats{ InodeRevalidate: 52, DnodeRevalidate: 226, VFSOpen: 1, VFSLookup: 13, VFSAccess: 398, VFSReadPages: 331, VFSWritePages: 47, VFSFlush: 77, VFSFileRelease: 77, }, Operations: []NFSOperationStats{ { Operation: "NULL", }, { Operation: "READ", Requests: 1298, Transmissions: 1298, BytesSent: 207680, BytesReceived: 1210292152, CumulativeQueueTime: 6 * time.Millisecond, CumulativeTotalResponseTime: 79386 * time.Millisecond, CumulativeTotalRequestTime: 79407 * time.Millisecond, }, { Operation: "WRITE", }, }, Transport: NFSTransportStats{ Port: 832, Connect: 1, IdleTime: 11 * time.Second, Sends: 6428, Receives: 6428, CumulativeActiveRequests: 12154, MaximumRPCSlotsUsed: 24, CumulativeSendingQueue: 26, CumulativePendingQueue: 5726, }, }, }, }, }, } for i, tt := range tests { t.Logf("[%02d] test %q", i, tt.name) var mounts []*Mount var err error if tt.s != "" { mounts, err = parseMountStats(strings.NewReader(tt.s)) } if tt.fs { proc, err := FS("fixtures").NewProc(26231) if err != nil { t.Fatalf("failed to create proc: %v", err) } mounts, err = proc.MountStats() } if tt.invalid && err == nil { t.Error("expected an error, but none occurred") } if !tt.invalid && err != nil { t.Errorf("unexpected error: %v", err) } if want, have := tt.mounts, mounts; !reflect.DeepEqual(want, have) { t.Errorf("mounts:\nwant:\n%v\nhave:\n%v", mountsStr(want), mountsStr(have)) } } } func mountsStr(mounts []*Mount) string { var out string for i, m := range mounts { out += fmt.Sprintf("[%d] %q on %q (%q)", i, m.Device, m.Mount, m.Type) stats, ok := m.Stats.(*MountStatsNFS) if !ok { out += "\n" continue } out += fmt.Sprintf("\n\t- v%s, age: %s", stats.StatVersion, stats.Age) out += fmt.Sprintf("\n\t- bytes: %v", stats.Bytes) out += fmt.Sprintf("\n\t- events: %v", stats.Events) out += fmt.Sprintf("\n\t- transport: %v", stats.Transport) out += fmt.Sprintf("\n\t- per-operation stats:") for _, o := range stats.Operations { out += fmt.Sprintf("\n\t\t- %v", o) } out += "\n" } return out } golang-procfs-0+git20161206.fcdb11c/proc.go000066400000000000000000000113521302163476500200620ustar00rootroot00000000000000package procfs import ( "fmt" "io/ioutil" "os" "strconv" "strings" ) // Proc provides information about a running process. type Proc struct { // The process ID. PID int fs FS } // Procs represents a list of Proc structs. type Procs []Proc func (p Procs) Len() int { return len(p) } func (p Procs) Swap(i, j int) { p[i], p[j] = p[j], p[i] } func (p Procs) Less(i, j int) bool { return p[i].PID < p[j].PID } // Self returns a process for the current process read via /proc/self. func Self() (Proc, error) { fs, err := NewFS(DefaultMountPoint) if err != nil { return Proc{}, err } return fs.Self() } // NewProc returns a process for the given pid under /proc. func NewProc(pid int) (Proc, error) { fs, err := NewFS(DefaultMountPoint) if err != nil { return Proc{}, err } return fs.NewProc(pid) } // AllProcs returns a list of all currently available processes under /proc. func AllProcs() (Procs, error) { fs, err := NewFS(DefaultMountPoint) if err != nil { return Procs{}, err } return fs.AllProcs() } // Self returns a process for the current process. func (fs FS) Self() (Proc, error) { p, err := os.Readlink(fs.Path("self")) if err != nil { return Proc{}, err } pid, err := strconv.Atoi(strings.Replace(p, string(fs), "", -1)) if err != nil { return Proc{}, err } return fs.NewProc(pid) } // NewProc returns a process for the given pid. func (fs FS) NewProc(pid int) (Proc, error) { if _, err := os.Stat(fs.Path(strconv.Itoa(pid))); err != nil { return Proc{}, err } return Proc{PID: pid, fs: fs}, nil } // AllProcs returns a list of all currently available processes. func (fs FS) AllProcs() (Procs, error) { d, err := os.Open(fs.Path()) if err != nil { return Procs{}, err } defer d.Close() names, err := d.Readdirnames(-1) if err != nil { return Procs{}, fmt.Errorf("could not read %s: %s", d.Name(), err) } p := Procs{} for _, n := range names { pid, err := strconv.ParseInt(n, 10, 64) if err != nil { continue } p = append(p, Proc{PID: int(pid), fs: fs}) } return p, nil } // CmdLine returns the command line of a process. func (p Proc) CmdLine() ([]string, error) { f, err := os.Open(p.path("cmdline")) if err != nil { return nil, err } defer f.Close() data, err := ioutil.ReadAll(f) if err != nil { return nil, err } if len(data) < 1 { return []string{}, nil } return strings.Split(string(data[:len(data)-1]), string(byte(0))), nil } // Comm returns the command name of a process. func (p Proc) Comm() (string, error) { f, err := os.Open(p.path("comm")) if err != nil { return "", err } defer f.Close() data, err := ioutil.ReadAll(f) if err != nil { return "", err } return strings.TrimSpace(string(data)), nil } // Executable returns the absolute path of the executable command of a process. func (p Proc) Executable() (string, error) { exe, err := os.Readlink(p.path("exe")) if os.IsNotExist(err) { return "", nil } return exe, err } // FileDescriptors returns the currently open file descriptors of a process. func (p Proc) FileDescriptors() ([]uintptr, error) { names, err := p.fileDescriptors() if err != nil { return nil, err } fds := make([]uintptr, len(names)) for i, n := range names { fd, err := strconv.ParseInt(n, 10, 32) if err != nil { return nil, fmt.Errorf("could not parse fd %s: %s", n, err) } fds[i] = uintptr(fd) } return fds, nil } // FileDescriptorTargets returns the targets of all file descriptors of a process. // If a file descriptor is not a symlink to a file (like a socket), that value will be the empty string. func (p Proc) FileDescriptorTargets() ([]string, error) { names, err := p.fileDescriptors() if err != nil { return nil, err } targets := make([]string, len(names)) for i, name := range names { target, err := os.Readlink(p.path("fd", name)) if err == nil { targets[i] = target } } return targets, nil } // FileDescriptorsLen returns the number of currently open file descriptors of // a process. func (p Proc) FileDescriptorsLen() (int, error) { fds, err := p.fileDescriptors() if err != nil { return 0, err } return len(fds), nil } // MountStats retrieves statistics and configuration for mount points in a // process's namespace. func (p Proc) MountStats() ([]*Mount, error) { f, err := os.Open(p.path("mountstats")) if err != nil { return nil, err } defer f.Close() return parseMountStats(f) } func (p Proc) fileDescriptors() ([]string, error) { d, err := os.Open(p.path("fd")) if err != nil { return nil, err } defer d.Close() names, err := d.Readdirnames(-1) if err != nil { return nil, fmt.Errorf("could not read %s: %s", d.Name(), err) } return names, nil } func (p Proc) path(pa ...string) string { return p.fs.Path(append([]string{strconv.Itoa(p.PID)}, pa...)...) } golang-procfs-0+git20161206.fcdb11c/proc_io.go000066400000000000000000000021611302163476500205470ustar00rootroot00000000000000package procfs import ( "fmt" "io/ioutil" "os" ) // ProcIO models the content of /proc//io. type ProcIO struct { // Chars read. RChar uint64 // Chars written. WChar uint64 // Read syscalls. SyscR uint64 // Write syscalls. SyscW uint64 // Bytes read. ReadBytes uint64 // Bytes written. WriteBytes uint64 // Bytes written, but taking into account truncation. See // Documentation/filesystems/proc.txt in the kernel sources for // detailed explanation. CancelledWriteBytes int64 } // NewIO creates a new ProcIO instance from a given Proc instance. func (p Proc) NewIO() (ProcIO, error) { pio := ProcIO{} f, err := os.Open(p.path("io")) if err != nil { return pio, err } defer f.Close() data, err := ioutil.ReadAll(f) if err != nil { return pio, err } ioFormat := "rchar: %d\nwchar: %d\nsyscr: %d\nsyscw: %d\n" + "read_bytes: %d\nwrite_bytes: %d\n" + "cancelled_write_bytes: %d\n" _, err = fmt.Sscanf(string(data), ioFormat, &pio.RChar, &pio.WChar, &pio.SyscR, &pio.SyscW, &pio.ReadBytes, &pio.WriteBytes, &pio.CancelledWriteBytes) if err != nil { return pio, err } return pio, nil } golang-procfs-0+git20161206.fcdb11c/proc_io_test.go000066400000000000000000000014441302163476500216110ustar00rootroot00000000000000package procfs import "testing" func TestProcIO(t *testing.T) { p, err := FS("fixtures").NewProc(26231) if err != nil { t.Fatal(err) } s, err := p.NewIO() if err != nil { t.Fatal(err) } for _, test := range []struct { name string want int64 have int64 }{ {name: "RChar", want: 750339, have: int64(s.RChar)}, {name: "WChar", want: 818609, have: int64(s.WChar)}, {name: "SyscR", want: 7405, have: int64(s.SyscR)}, {name: "SyscW", want: 5245, have: int64(s.SyscW)}, {name: "ReadBytes", want: 1024, have: int64(s.ReadBytes)}, {name: "WriteBytes", want: 2048, have: int64(s.WriteBytes)}, {name: "CancelledWriteBytes", want: -1024, have: s.CancelledWriteBytes}, } { if test.want != test.have { t.Errorf("want %s %d, have %d", test.name, test.want, test.have) } } } golang-procfs-0+git20161206.fcdb11c/proc_limits.go000066400000000000000000000075271302163476500214540ustar00rootroot00000000000000package procfs import ( "bufio" "fmt" "os" "regexp" "strconv" ) // ProcLimits represents the soft limits for each of the process's resource // limits. For more information see getrlimit(2): // http://man7.org/linux/man-pages/man2/getrlimit.2.html. type ProcLimits struct { // CPU time limit in seconds. CPUTime int // Maximum size of files that the process may create. FileSize int // Maximum size of the process's data segment (initialized data, // uninitialized data, and heap). DataSize int // Maximum size of the process stack in bytes. StackSize int // Maximum size of a core file. CoreFileSize int // Limit of the process's resident set in pages. ResidentSet int // Maximum number of processes that can be created for the real user ID of // the calling process. Processes int // Value one greater than the maximum file descriptor number that can be // opened by this process. OpenFiles int // Maximum number of bytes of memory that may be locked into RAM. LockedMemory int // Maximum size of the process's virtual memory address space in bytes. AddressSpace int // Limit on the combined number of flock(2) locks and fcntl(2) leases that // this process may establish. FileLocks int // Limit of signals that may be queued for the real user ID of the calling // process. PendingSignals int // Limit on the number of bytes that can be allocated for POSIX message // queues for the real user ID of the calling process. MsqqueueSize int // Limit of the nice priority set using setpriority(2) or nice(2). NicePriority int // Limit of the real-time priority set using sched_setscheduler(2) or // sched_setparam(2). RealtimePriority int // Limit (in microseconds) on the amount of CPU time that a process // scheduled under a real-time scheduling policy may consume without making // a blocking system call. RealtimeTimeout int } const ( limitsFields = 3 limitsUnlimited = "unlimited" ) var ( limitsDelimiter = regexp.MustCompile(" +") ) // NewLimits returns the current soft limits of the process. func (p Proc) NewLimits() (ProcLimits, error) { f, err := os.Open(p.path("limits")) if err != nil { return ProcLimits{}, err } defer f.Close() var ( l = ProcLimits{} s = bufio.NewScanner(f) ) for s.Scan() { fields := limitsDelimiter.Split(s.Text(), limitsFields) if len(fields) != limitsFields { return ProcLimits{}, fmt.Errorf( "couldn't parse %s line %s", f.Name(), s.Text()) } switch fields[0] { case "Max cpu time": l.CPUTime, err = parseInt(fields[1]) case "Max file size": l.FileSize, err = parseInt(fields[1]) case "Max data size": l.DataSize, err = parseInt(fields[1]) case "Max stack size": l.StackSize, err = parseInt(fields[1]) case "Max core file size": l.CoreFileSize, err = parseInt(fields[1]) case "Max resident set": l.ResidentSet, err = parseInt(fields[1]) case "Max processes": l.Processes, err = parseInt(fields[1]) case "Max open files": l.OpenFiles, err = parseInt(fields[1]) case "Max locked memory": l.LockedMemory, err = parseInt(fields[1]) case "Max address space": l.AddressSpace, err = parseInt(fields[1]) case "Max file locks": l.FileLocks, err = parseInt(fields[1]) case "Max pending signals": l.PendingSignals, err = parseInt(fields[1]) case "Max msgqueue size": l.MsqqueueSize, err = parseInt(fields[1]) case "Max nice priority": l.NicePriority, err = parseInt(fields[1]) case "Max realtime priority": l.RealtimePriority, err = parseInt(fields[1]) case "Max realtime timeout": l.RealtimeTimeout, err = parseInt(fields[1]) } if err != nil { return ProcLimits{}, err } } return l, s.Err() } func parseInt(s string) (int, error) { if s == limitsUnlimited { return -1, nil } i, err := strconv.ParseInt(s, 10, 32) if err != nil { return 0, fmt.Errorf("couldn't parse value %s: %s", s, err) } return int(i), nil } golang-procfs-0+git20161206.fcdb11c/proc_limits_test.go000066400000000000000000000012441302163476500225010ustar00rootroot00000000000000package procfs import "testing" func TestNewLimits(t *testing.T) { p, err := FS("fixtures").NewProc(26231) if err != nil { t.Fatal(err) } l, err := p.NewLimits() if err != nil { t.Fatal(err) } for _, test := range []struct { name string want int have int }{ {name: "cpu time", want: -1, have: l.CPUTime}, {name: "open files", want: 2048, have: l.OpenFiles}, {name: "msgqueue size", want: 819200, have: l.MsqqueueSize}, {name: "nice priority", want: 0, have: l.NicePriority}, {name: "address space", want: -1, have: l.AddressSpace}, } { if test.want != test.have { t.Errorf("want %s %d, have %d", test.name, test.want, test.have) } } } golang-procfs-0+git20161206.fcdb11c/proc_stat.go000066400000000000000000000111051302163476500211110ustar00rootroot00000000000000package procfs import ( "bytes" "fmt" "io/ioutil" "os" ) // Originally, this USER_HZ value was dynamically retrieved via a sysconf call // which required cgo. However, that caused a lot of problems regarding // cross-compilation. Alternatives such as running a binary to determine the // value, or trying to derive it in some other way were all problematic. After // much research it was determined that USER_HZ is actually hardcoded to 100 on // all Go-supported platforms as of the time of this writing. This is why we // decided to hardcode it here as well. It is not impossible that there could // be systems with exceptions, but they should be very exotic edge cases, and // in that case, the worst outcome will be two misreported metrics. // // See also the following discussions: // // - https://github.com/prometheus/node_exporter/issues/52 // - https://github.com/prometheus/procfs/pull/2 // - http://stackoverflow.com/questions/17410841/how-does-user-hz-solve-the-jiffy-scaling-issue const userHZ = 100 // ProcStat provides status information about the process, // read from /proc/[pid]/stat. type ProcStat struct { // The process ID. PID int // The filename of the executable. Comm string // The process state. State string // The PID of the parent of this process. PPID int // The process group ID of the process. PGRP int // The session ID of the process. Session int // The controlling terminal of the process. TTY int // The ID of the foreground process group of the controlling terminal of // the process. TPGID int // The kernel flags word of the process. Flags uint // The number of minor faults the process has made which have not required // loading a memory page from disk. MinFlt uint // The number of minor faults that the process's waited-for children have // made. CMinFlt uint // The number of major faults the process has made which have required // loading a memory page from disk. MajFlt uint // The number of major faults that the process's waited-for children have // made. CMajFlt uint // Amount of time that this process has been scheduled in user mode, // measured in clock ticks. UTime uint // Amount of time that this process has been scheduled in kernel mode, // measured in clock ticks. STime uint // Amount of time that this process's waited-for children have been // scheduled in user mode, measured in clock ticks. CUTime uint // Amount of time that this process's waited-for children have been // scheduled in kernel mode, measured in clock ticks. CSTime uint // For processes running a real-time scheduling policy, this is the negated // scheduling priority, minus one. Priority int // The nice value, a value in the range 19 (low priority) to -20 (high // priority). Nice int // Number of threads in this process. NumThreads int // The time the process started after system boot, the value is expressed // in clock ticks. Starttime uint64 // Virtual memory size in bytes. VSize int // Resident set size in pages. RSS int fs FS } // NewStat returns the current status information of the process. func (p Proc) NewStat() (ProcStat, error) { f, err := os.Open(p.path("stat")) if err != nil { return ProcStat{}, err } defer f.Close() data, err := ioutil.ReadAll(f) if err != nil { return ProcStat{}, err } var ( ignore int s = ProcStat{PID: p.PID, fs: p.fs} l = bytes.Index(data, []byte("(")) r = bytes.LastIndex(data, []byte(")")) ) if l < 0 || r < 0 { return ProcStat{}, fmt.Errorf( "unexpected format, couldn't extract comm: %s", data, ) } s.Comm = string(data[l+1 : r]) _, err = fmt.Fscan( bytes.NewBuffer(data[r+2:]), &s.State, &s.PPID, &s.PGRP, &s.Session, &s.TTY, &s.TPGID, &s.Flags, &s.MinFlt, &s.CMinFlt, &s.MajFlt, &s.CMajFlt, &s.UTime, &s.STime, &s.CUTime, &s.CSTime, &s.Priority, &s.Nice, &s.NumThreads, &ignore, &s.Starttime, &s.VSize, &s.RSS, ) if err != nil { return ProcStat{}, err } return s, nil } // VirtualMemory returns the virtual memory size in bytes. func (s ProcStat) VirtualMemory() int { return s.VSize } // ResidentMemory returns the resident memory size in bytes. func (s ProcStat) ResidentMemory() int { return s.RSS * os.Getpagesize() } // StartTime returns the unix timestamp of the process in seconds. func (s ProcStat) StartTime() (float64, error) { stat, err := s.fs.NewStat() if err != nil { return 0, err } return float64(stat.BootTime) + (float64(s.Starttime) / userHZ), nil } // CPUTime returns the total CPU user and system time in seconds. func (s ProcStat) CPUTime() float64 { return float64(s.UTime+s.STime) / userHZ } golang-procfs-0+git20161206.fcdb11c/proc_stat_test.go000066400000000000000000000043441302163476500221570ustar00rootroot00000000000000package procfs import ( "os" "testing" ) func TestProcStat(t *testing.T) { p, err := FS("fixtures").NewProc(26231) if err != nil { t.Fatal(err) } s, err := p.NewStat() if err != nil { t.Fatal(err) } for _, test := range []struct { name string want int have int }{ {name: "pid", want: 26231, have: s.PID}, {name: "user time", want: 1677, have: int(s.UTime)}, {name: "system time", want: 44, have: int(s.STime)}, {name: "start time", want: 82375, have: int(s.Starttime)}, {name: "virtual memory size", want: 56274944, have: s.VSize}, {name: "resident set size", want: 1981, have: s.RSS}, } { if test.want != test.have { t.Errorf("want %s %d, have %d", test.name, test.want, test.have) } } } func TestProcStatComm(t *testing.T) { s1, err := testProcStat(26231) if err != nil { t.Fatal(err) } if want, have := "vim", s1.Comm; want != have { t.Errorf("want comm %s, have %s", want, have) } s2, err := testProcStat(584) if err != nil { t.Fatal(err) } if want, have := "(a b ) ( c d) ", s2.Comm; want != have { t.Errorf("want comm %s, have %s", want, have) } } func TestProcStatVirtualMemory(t *testing.T) { s, err := testProcStat(26231) if err != nil { t.Fatal(err) } if want, have := 56274944, s.VirtualMemory(); want != have { t.Errorf("want virtual memory %d, have %d", want, have) } } func TestProcStatResidentMemory(t *testing.T) { s, err := testProcStat(26231) if err != nil { t.Fatal(err) } if want, have := 1981*os.Getpagesize(), s.ResidentMemory(); want != have { t.Errorf("want resident memory %d, have %d", want, have) } } func TestProcStatStartTime(t *testing.T) { s, err := testProcStat(26231) if err != nil { t.Fatal(err) } time, err := s.StartTime() if err != nil { t.Fatal(err) } if want, have := 1418184099.75, time; want != have { t.Errorf("want start time %f, have %f", want, have) } } func TestProcStatCPUTime(t *testing.T) { s, err := testProcStat(26231) if err != nil { t.Fatal(err) } if want, have := 17.21, s.CPUTime(); want != have { t.Errorf("want cpu time %f, have %f", want, have) } } func testProcStat(pid int) (ProcStat, error) { p, err := FS("fixtures").NewProc(pid) if err != nil { return ProcStat{}, err } return p.NewStat() } golang-procfs-0+git20161206.fcdb11c/proc_test.go000066400000000000000000000062751302163476500211310ustar00rootroot00000000000000package procfs import ( "reflect" "sort" "testing" ) func TestSelf(t *testing.T) { fs := FS("fixtures") p1, err := fs.NewProc(26231) if err != nil { t.Fatal(err) } p2, err := fs.Self() if err != nil { t.Fatal(err) } if !reflect.DeepEqual(p1, p2) { t.Errorf("want process %v, have %v", p1, p2) } } func TestAllProcs(t *testing.T) { procs, err := FS("fixtures").AllProcs() if err != nil { t.Fatal(err) } sort.Sort(procs) for i, p := range []*Proc{{PID: 584}, {PID: 26231}} { if want, have := p.PID, procs[i].PID; want != have { t.Errorf("want processes %d, have %d", want, have) } } } func TestCmdLine(t *testing.T) { for _, tt := range []struct { process int want []string }{ {process: 26231, want: []string{"vim", "test.go", "+10"}}, {process: 26232, want: []string{}}, } { p1, err := FS("fixtures").NewProc(tt.process) if err != nil { t.Fatal(err) } c1, err := p1.CmdLine() if err != nil { t.Fatal(err) } if !reflect.DeepEqual(tt.want, c1) { t.Errorf("want cmdline %v, have %v", tt.want, c1) } } } func TestComm(t *testing.T) { for _, tt := range []struct { process int want string }{ {process: 26231, want: "vim"}, {process: 26232, want: "ata_sff"}, } { p1, err := FS("fixtures").NewProc(tt.process) if err != nil { t.Fatal(err) } c1, err := p1.Comm() if err != nil { t.Fatal(err) } if !reflect.DeepEqual(tt.want, c1) { t.Errorf("want comm %v, have %v", tt.want, c1) } } } func TestExecutable(t *testing.T) { for _, tt := range []struct { process int want string }{ {process: 26231, want: "/usr/bin/vim"}, {process: 26232, want: ""}, } { p, err := FS("fixtures").NewProc(tt.process) if err != nil { t.Fatal(err) } exe, err := p.Executable() if err != nil { t.Fatal(err) } if !reflect.DeepEqual(tt.want, exe) { t.Errorf("want absolute path to cmdline %v, have %v", tt.want, exe) } } } func TestFileDescriptors(t *testing.T) { p1, err := FS("fixtures").NewProc(26231) if err != nil { t.Fatal(err) } fds, err := p1.FileDescriptors() if err != nil { t.Fatal(err) } sort.Sort(byUintptr(fds)) if want := []uintptr{0, 1, 2, 3, 10}; !reflect.DeepEqual(want, fds) { t.Errorf("want fds %v, have %v", want, fds) } } func TestFileDescriptorTargets(t *testing.T) { p1, err := FS("fixtures").NewProc(26231) if err != nil { t.Fatal(err) } fds, err := p1.FileDescriptorTargets() if err != nil { t.Fatal(err) } sort.Strings(fds) var want = []string{ "../../symlinktargets/abc", "../../symlinktargets/def", "../../symlinktargets/ghi", "../../symlinktargets/uvw", "../../symlinktargets/xyz", } if !reflect.DeepEqual(want, fds) { t.Errorf("want fds %v, have %v", want, fds) } } func TestFileDescriptorsLen(t *testing.T) { p1, err := FS("fixtures").NewProc(26231) if err != nil { t.Fatal(err) } l, err := p1.FileDescriptorsLen() if err != nil { t.Fatal(err) } if want, have := 5, l; want != have { t.Errorf("want fds %d, have %d", want, have) } } type byUintptr []uintptr func (a byUintptr) Len() int { return len(a) } func (a byUintptr) Swap(i, j int) { a[i], a[j] = a[j], a[i] } func (a byUintptr) Less(i, j int) bool { return a[i] < a[j] } golang-procfs-0+git20161206.fcdb11c/stat.go000066400000000000000000000022751302163476500200760ustar00rootroot00000000000000package procfs import ( "bufio" "fmt" "os" "strconv" "strings" ) // Stat represents kernel/system statistics. type Stat struct { // Boot time in seconds since the Epoch. BootTime int64 } // NewStat returns kernel/system statistics read from /proc/stat. func NewStat() (Stat, error) { fs, err := NewFS(DefaultMountPoint) if err != nil { return Stat{}, err } return fs.NewStat() } // NewStat returns an information about current kernel/system statistics. func (fs FS) NewStat() (Stat, error) { f, err := os.Open(fs.Path("stat")) if err != nil { return Stat{}, err } defer f.Close() s := bufio.NewScanner(f) for s.Scan() { line := s.Text() if !strings.HasPrefix(line, "btime") { continue } fields := strings.Fields(line) if len(fields) != 2 { return Stat{}, fmt.Errorf("couldn't parse %s line %s", f.Name(), line) } i, err := strconv.ParseInt(fields[1], 10, 32) if err != nil { return Stat{}, fmt.Errorf("couldn't parse %s: %s", fields[1], err) } return Stat{BootTime: i}, nil } if err := s.Err(); err != nil { return Stat{}, fmt.Errorf("couldn't parse %s: %s", f.Name(), err) } return Stat{}, fmt.Errorf("couldn't parse %s, missing btime", f.Name()) } golang-procfs-0+git20161206.fcdb11c/stat_test.go000066400000000000000000000004021302163476500211230ustar00rootroot00000000000000package procfs import "testing" func TestStat(t *testing.T) { s, err := FS("fixtures").NewStat() if err != nil { t.Fatal(err) } if want, have := int64(1418183276), s.BootTime; want != have { t.Errorf("want boot time %d, have %d", want, have) } }