You've already forked agentic-coding-workflow
74 lines
2.1 KiB
Go
74 lines
2.1 KiB
Go
//go:build windows
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package proc
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import (
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"errors"
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"os/exec"
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"time"
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"unsafe"
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"golang.org/x/sys/windows"
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)
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// windowsGroup 用 Job Object 实现整树终止：把进程纳入一个设置了
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// KILL_ON_JOB_CLOSE 的 Job，此后该进程派生的所有子孙自动归入同一 Job，
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// 关闭 Job 句柄即整树终止。优于 Process.Kill（只杀单 PID，漏 node 等子进程）。
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type windowsGroup struct {
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job windows.Handle
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}
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func newGroup() Group { return &windowsGroup{} }
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// Prepare 在 Windows 为 no-op：Job 须在进程 Start 之后才能 Assign。
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func (g *windowsGroup) Prepare(cmd *exec.Cmd) {}
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// Adopt 必须在 cmd.Start() 之后、子进程派生之前调用。竞态窗口：父进程 exec 后
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// 到首个子进程派生之间存在微秒级窗口（Go 无 pre-exec hook 无法完全消除），
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// 实践风险极小，文档化为已知限制。
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func (g *windowsGroup) Adopt(cmd *exec.Cmd) error {
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if cmd.Process == nil {
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return errors.New("proc: Adopt before Start")
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}
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job, err := windows.CreateJobObject(nil, nil)
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if err != nil {
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return err
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}
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var info windows.JOBOBJECT_EXTENDED_LIMIT_INFORMATION
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info.BasicLimitInformation.LimitFlags = windows.JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE
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if _, err := windows.SetInformationJobObject(
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job,
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windows.JobObjectExtendedLimitInformation,
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uintptr(unsafe.Pointer(&info)),
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uint32(unsafe.Sizeof(info)),
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); err != nil {
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_ = windows.CloseHandle(job)
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return err
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}
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h, err := windows.OpenProcess(windows.PROCESS_SET_QUOTA|windows.PROCESS_TERMINATE, false, uint32(cmd.Process.Pid))
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if err != nil {
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_ = windows.CloseHandle(job)
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return err
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}
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defer windows.CloseHandle(h)
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if err := windows.AssignProcessToJobObject(job, h); err != nil {
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_ = windows.CloseHandle(job)
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return err
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}
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g.job = job
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return nil
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}
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// TerminateGroup 在 Windows 无可靠 SIGTERM 等价物，直接关闭 Job 句柄触发
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// KILL_ON_JOB_CLOSE 整树终止（grace/done 不参与，仅保持接口签名一致）。
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func (g *windowsGroup) TerminateGroup(_ <-chan struct{}, _ time.Duration) {
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g.Close()
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}
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func (g *windowsGroup) Close() {
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if g.job != 0 {
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_ = windows.CloseHandle(g.job)
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g.job = 0
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}
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}
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