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proc_windows.go
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proc_windows.go
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// +build windows
package goemon
import (
"fmt"
"os"
"os/exec"
"syscall"
"time"
)
var (
libkernel32 = syscall.MustLoadDLL("kernel32")
procSetConsoleCtrlHandler = libkernel32.MustFindProc("SetConsoleCtrlHandler")
procGenerateConsoleCtrlEvent = libkernel32.MustFindProc("GenerateConsoleCtrlEvent")
)
func (g *Goemon) spawn() error {
g.cmd = exec.Command(g.Args[0], g.Args[1:]...)
g.cmd.Stdout = os.Stdout
g.cmd.Stderr = os.Stderr
g.cmd.SysProcAttr = &syscall.SysProcAttr{
CreationFlags: syscall.CREATE_UNICODE_ENVIRONMENT | 0x00000200,
}
return g.cmd.Run()
}
func kill(p *os.Process) error {
return exec.Command("taskkill", "/F", "/T", "/PID", fmt.Sprint(p.Pid)).Run()
}
func (g *Goemon) terminate(sig os.Signal) error {
if g.cmd != nil && g.cmd.Process != nil {
if err := interrupt(g.cmd.Process, sig); err != nil {
g.Logger.Println(err)
return kill(g.cmd.Process)
}
deadline := time.Now().Add(5 * time.Second)
for time.Now().Before(deadline) {
if g.cmd.ProcessState != nil && g.cmd.ProcessState.Exited() {
return nil
}
time.Sleep(100)
}
return kill(g.cmd.Process)
}
return nil
}
func interrupt(p *os.Process, sig os.Signal) error {
if sig == os.Kill {
return p.Kill()
}
procSetConsoleCtrlHandler.Call(0, 1)
defer procSetConsoleCtrlHandler.Call(0, 0)
r1, _, err := procGenerateConsoleCtrlEvent.Call(syscall.CTRL_C_EVENT, uintptr(p.Pid))
if r1 == 0 {
return err
}
return nil
}