62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package procstat
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/shirou/gopsutil/cpu"
|
|
"github.com/shirou/gopsutil/process"
|
|
)
|
|
|
|
type Process interface {
|
|
PID() PID
|
|
Tags() map[string]string
|
|
|
|
IOCounters() (*process.IOCountersStat, error)
|
|
MemoryInfo() (*process.MemoryInfoStat, error)
|
|
Name() (string, error)
|
|
NumCtxSwitches() (*process.NumCtxSwitchesStat, error)
|
|
NumFDs() (int32, error)
|
|
NumThreads() (int32, error)
|
|
Percent(interval time.Duration) (float64, error)
|
|
Times() (*cpu.TimesStat, error)
|
|
RlimitUsage(bool) ([]process.RlimitStat, error)
|
|
}
|
|
|
|
type Proc struct {
|
|
hasCPUTimes bool
|
|
tags map[string]string
|
|
*process.Process
|
|
}
|
|
|
|
func NewProc(pid PID) (Process, error) {
|
|
process, err := process.NewProcess(int32(pid))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
proc := &Proc{
|
|
Process: process,
|
|
hasCPUTimes: false,
|
|
tags: make(map[string]string),
|
|
}
|
|
return proc, nil
|
|
}
|
|
|
|
func (p *Proc) Tags() map[string]string {
|
|
return p.tags
|
|
}
|
|
|
|
func (p *Proc) PID() PID {
|
|
return PID(p.Process.Pid)
|
|
}
|
|
|
|
func (p *Proc) Percent(interval time.Duration) (float64, error) {
|
|
cpu_perc, err := p.Process.Percent(time.Duration(0))
|
|
if !p.hasCPUTimes && err == nil {
|
|
p.hasCPUTimes = true
|
|
return 0, fmt.Errorf("Must call Percent twice to compute percent cpu.")
|
|
}
|
|
return cpu_perc, err
|
|
}
|