From 8c12c6939aab9106db14ec2d11d983bc5b29fb2c Mon Sep 17 00:00:00 2001 From: Niall Sheridan Date: Sun, 7 Jul 2019 21:33:44 +0100 Subject: Switch to modules --- vendor/github.com/prometheus/procfs/proc_stat.go | 188 ----------------------- 1 file changed, 188 deletions(-) delete mode 100644 vendor/github.com/prometheus/procfs/proc_stat.go (limited to 'vendor/github.com/prometheus/procfs/proc_stat.go') diff --git a/vendor/github.com/prometheus/procfs/proc_stat.go b/vendor/github.com/prometheus/procfs/proc_stat.go deleted file mode 100644 index 3cf2a9f..0000000 --- a/vendor/github.com/prometheus/procfs/proc_stat.go +++ /dev/null @@ -1,188 +0,0 @@ -// Copyright 2018 The Prometheus Authors -// 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 - -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 -} -- cgit v1.2.3