syncthing/lib/syncthing/cpuusage_solaris.go
Simon Frei 0025e9ccfb all: Refactor cmd/syncthing creating lib/syncthing (ref #4085) (#5805)
* add skeleton for lib/syncthing

* copy syncthingMain to lib/syncthing (verbatim)

* Remove code to deduplicate copies of syncthingMain

* fix simple build errors

* move stuff from main to syncthing with minimal mod

* merge runtime options

* actually use syncthing.App

* pass io.writer to lib/syncthing for auditing

* get rid of env stuff in lib/syncthing

* add .Error() and comments

* review: Remove fs interactions from lib

* and go 1.13 happened

* utility functions
2019-07-14 11:43:13 +01:00

79 lines
2.3 KiB
Go

// Copyright (C) 2014 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
//+build solaris
package syncthing
import (
"encoding/binary"
"fmt"
"os"
"time"
)
type id_t int32
type ulong_t uint32
type timestruc_t struct {
Tv_sec int64
Tv_nsec int64
}
func (tv timestruc_t) Nano() int64 {
return tv.Tv_sec*1e9 + tv.Tv_nsec
}
type prusage_t struct {
Pr_lwpid id_t /* lwp id. 0: process or defunct */
Pr_count int32 /* number of contributing lwps */
Pr_tstamp timestruc_t /* real time stamp, time of read() */
Pr_create timestruc_t /* process/lwp creation time stamp */
Pr_term timestruc_t /* process/lwp termination time stamp */
Pr_rtime timestruc_t /* total lwp real (elapsed) time */
Pr_utime timestruc_t /* user level CPU time */
Pr_stime timestruc_t /* system call CPU time */
Pr_ttime timestruc_t /* other system trap CPU time */
Pr_tftime timestruc_t /* text page fault sleep time */
Pr_dftime timestruc_t /* data page fault sleep time */
Pr_kftime timestruc_t /* kernel page fault sleep time */
Pr_ltime timestruc_t /* user lock wait sleep time */
Pr_slptime timestruc_t /* all other sleep time */
Pr_wtime timestruc_t /* wait-cpu (latency) time */
Pr_stoptime timestruc_t /* stopped time */
Pr_minf ulong_t /* minor page faults */
Pr_majf ulong_t /* major page faults */
Pr_nswap ulong_t /* swaps */
Pr_inblk ulong_t /* input blocks */
Pr_oublk ulong_t /* output blocks */
Pr_msnd ulong_t /* messages sent */
Pr_mrcv ulong_t /* messages received */
Pr_sigs ulong_t /* signals received */
Pr_vctx ulong_t /* voluntary context switches */
Pr_ictx ulong_t /* involuntary context switches */
Pr_sysc ulong_t /* system calls */
Pr_ioch ulong_t /* chars read and written */
}
var procFile = fmt.Sprintf("/proc/%d/usage", os.Getpid())
func cpuUsage() time.Duration {
fd, err := os.Open(procFile)
if err != nil {
return 0
}
var rusage prusage_t
err = binary.Read(fd, binary.LittleEndian, rusage)
fd.Close()
if err != nil {
return 0
}
return time.Duration(rusage.Pr_utime.Nano() + rusage.Pr_stime.Nano())
}