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package process
import (
"github.com/shirou/gopsutil/process"
"github.com/spiral/errors"
"github.com/spiral/roadrunner/v2/worker"
)
// State provides information about specific worker.
type State struct {
// Pid contains process id.
Pid int `json:"pid"`
// Status of the worker.
Status string `json:"status"`
// Number of worker executions.
NumJobs uint64 `json:"numExecs"`
// Created is unix nano timestamp of worker creation time.
Created int64 `json:"created"`
// MemoryUsage holds the information about worker memory usage in bytes.
// Values might vary for different operating systems and based on RSS.
MemoryUsage uint64 `json:"memoryUsage"`
// CPU_Percent returns how many percent of the CPU time this process uses
CPUPercent float64
// Command used in the service plugin and shows a command for the particular service
Command string
}
// WorkerProcessState creates new worker state definition.
func WorkerProcessState(w worker.BaseProcess) (*State, error) {
const op = errors.Op("worker_process_state")
p, _ := process.NewProcess(int32(w.Pid()))
i, err := p.MemoryInfo()
if err != nil {
return nil, errors.E(op, err)
}
percent, err := p.CPUPercent()
if err != nil {
return nil, err
}
return &State{
CPUPercent: percent,
Pid: int(w.Pid()),
Status: w.State().String(),
NumJobs: w.State().NumExecs(),
Created: w.Created().UnixNano(),
MemoryUsage: i.RSS,
}, nil
}
func GeneralProcessState(pid int, command string) (State, error) {
const op = errors.Op("process_state")
p, _ := process.NewProcess(int32(pid))
i, err := p.MemoryInfo()
if err != nil {
return State{}, errors.E(op, err)
}
percent, err := p.CPUPercent()
if err != nil {
return State{}, err
}
return State{
CPUPercent: percent,
Pid: pid,
MemoryUsage: i.RSS,
Command: command,
}, nil
}
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