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120 lines
3.1 KiB
Go
120 lines
3.1 KiB
Go
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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// Package gproc implements management and communication for processes.
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package gproc
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import (
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"os"
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"runtime"
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"time"
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"github.com/gogf/gf/v2/os/genv"
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"github.com/gogf/gf/v2/os/gfile"
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"github.com/gogf/gf/v2/text/gstr"
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"github.com/gogf/gf/v2/util/gconv"
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)
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const (
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envKeyPPid = "GPROC_PPID"
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tracingInstrumentName = "github.com/gogf/gf/v2/os/gproc.Process"
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)
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var (
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processPid = os.Getpid() // processPid is the pid of current process.
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processStartTime = time.Now() // processStartTime is the start time of current process.
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)
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// Pid returns the pid of current process.
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func Pid() int {
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return processPid
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}
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// PPid returns the custom parent pid if exists, or else it returns the system parent pid.
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func PPid() int {
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if !IsChild() {
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return Pid()
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}
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ppidValue := os.Getenv(envKeyPPid)
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if ppidValue != "" && ppidValue != "0" {
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return gconv.Int(ppidValue)
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}
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return PPidOS()
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}
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// PPidOS returns the system parent pid of current process.
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// Note that the difference between PPidOS and PPid function is that the PPidOS returns
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// the system ppid, but the PPid functions may return the custom pid by gproc if the custom
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// ppid exists.
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func PPidOS() int {
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return os.Getppid()
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}
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// IsChild checks and returns whether current process is a child process.
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// A child process is forked by another gproc process.
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func IsChild() bool {
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ppidValue := os.Getenv(envKeyPPid)
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return ppidValue != "" && ppidValue != "0"
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}
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// SetPPid sets custom parent pid for current process.
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func SetPPid(ppid int) error {
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if ppid > 0 {
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return os.Setenv(envKeyPPid, gconv.String(ppid))
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} else {
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return os.Unsetenv(envKeyPPid)
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}
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}
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// StartTime returns the start time of current process.
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func StartTime() time.Time {
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return processStartTime
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}
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// Uptime returns the duration which current process has been running
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func Uptime() time.Duration {
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return time.Since(processStartTime)
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}
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// SearchBinary searches the binary `file` in current working folder and PATH environment.
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func SearchBinary(file string) string {
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// Check if it is absolute path of exists at current working directory.
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if gfile.Exists(file) {
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return file
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}
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return SearchBinaryPath(file)
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}
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// SearchBinaryPath searches the binary `file` in PATH environment.
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func SearchBinaryPath(file string) string {
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array := ([]string)(nil)
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switch runtime.GOOS {
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case "windows":
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envPath := genv.Get("PATH", genv.Get("Path")).String()
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if gstr.Contains(envPath, ";") {
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array = gstr.SplitAndTrim(envPath, ";")
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} else if gstr.Contains(envPath, ":") {
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array = gstr.SplitAndTrim(envPath, ":")
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}
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if gfile.Ext(file) != ".exe" {
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file += ".exe"
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}
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default:
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array = gstr.SplitAndTrim(genv.Get("PATH").String(), ":")
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}
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if len(array) > 0 {
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path := ""
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for _, v := range array {
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path = v + gfile.Separator + file
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if gfile.Exists(path) && gfile.IsFile(path) {
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return path
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}
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}
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}
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return ""
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}
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