114 lines
2.2 KiB
Go
114 lines
2.2 KiB
Go
|
// Copied and modified from sigar_linux.go.
|
||
|
|
|
||
|
|
package gosigar
|
||
|
|
|
||
|
|
import (
|
||
|
|
"io/ioutil"
|
||
|
|
"runtime"
|
||
|
|
"strconv"
|
||
|
|
"strings"
|
||
|
|
"unsafe"
|
||
|
|
)
|
||
|
|
|
||
|
|
/*
|
||
|
|
#include <sys/param.h>
|
||
|
|
#include <sys/mount.h>
|
||
|
|
#include <sys/ucred.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/sysctl.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <time.h>
|
||
|
|
*/
|
||
|
|
import "C"
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
system.ticks = uint64(C.sysconf(C._SC_CLK_TCK))
|
||
|
|
|
||
|
|
Procd = "/compat/linux/proc"
|
||
|
|
|
||
|
|
getLinuxBootTime()
|
||
|
|
}
|
||
|
|
|
||
|
|
func getMountTableFileName() string {
|
||
|
|
return Procd + "/mtab"
|
||
|
|
}
|
||
|
|
|
||
|
|
func (self *Uptime) Get() error {
|
||
|
|
ts := C.struct_timespec{}
|
||
|
|
|
||
|
|
if _, err := C.clock_gettime(C.CLOCK_UPTIME, &ts); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
self.Length = float64(ts.tv_sec) + 1e-9*float64(ts.tv_nsec)
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (self *FDUsage) Get() error {
|
||
|
|
val := C.uint32_t(0)
|
||
|
|
sc := C.size_t(4)
|
||
|
|
|
||
|
|
name := C.CString("kern.openfiles")
|
||
|
|
_, err := C.sysctlbyname(name, unsafe.Pointer(&val), &sc, nil, 0)
|
||
|
|
C.free(unsafe.Pointer(name))
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
self.Open = uint64(val)
|
||
|
|
|
||
|
|
name = C.CString("kern.maxfiles")
|
||
|
|
_, err = C.sysctlbyname(name, unsafe.Pointer(&val), &sc, nil, 0)
|
||
|
|
C.free(unsafe.Pointer(name))
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
self.Max = uint64(val)
|
||
|
|
|
||
|
|
self.Unused = self.Max - self.Open
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (self *ProcFDUsage) Get(pid int) error {
|
||
|
|
err := readFile("/proc/"+strconv.Itoa(pid)+"/rlimit", func(line string) bool {
|
||
|
|
if strings.HasPrefix(line, "nofile") {
|
||
|
|
fields := strings.Fields(line)
|
||
|
|
if len(fields) == 3 {
|
||
|
|
self.SoftLimit, _ = strconv.ParseUint(fields[1], 10, 64)
|
||
|
|
self.HardLimit, _ = strconv.ParseUint(fields[2], 10, 64)
|
||
|
|
}
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
return true
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
// linprocfs only provides this information for this process (self).
|
||
|
|
fds, err := ioutil.ReadDir(procFileName(pid, "fd"))
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
self.Open = uint64(len(fds))
|
||
|
|
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (self *HugeTLBPages) Get() error {
|
||
|
|
return ErrNotImplemented{runtime.GOOS}
|
||
|
|
}
|
||
|
|
|
||
|
|
func parseCpuStat(self *Cpu, line string) error {
|
||
|
|
fields := strings.Fields(line)
|
||
|
|
|
||
|
|
self.User, _ = strtoull(fields[1])
|
||
|
|
self.Nice, _ = strtoull(fields[2])
|
||
|
|
self.Sys, _ = strtoull(fields[3])
|
||
|
|
self.Idle, _ = strtoull(fields[4])
|
||
|
|
return nil
|
||
|
|
}
|