初始化仓库

agent/claudecode/proc_unix.go

@@ -0,0 +1,48 @@
+//go:build unix
+
+package claudecode
+
+import (
+	"errors"
+	"os"
+	"os/exec"
+	"syscall"
+)
+
+// prepareCmdForKill puts the spawned child into its own process group so that
+// the entire descendant tree can be terminated with a single signal aimed at
+// the negative PID. Without this, cc-connect can only signal the direct
+// child (e.g. the `claude` CLI), leaving any grandchildren (MCP server
+// processes such as the Telegram bridge) as orphans that may spin at 100%
+// CPU when their parent disappears.
+//
+// Mirrors the pattern used by agent/codex/proc_unix.go.
+func prepareCmdForKill(cmd *exec.Cmd) {
+	if cmd == nil {
+		return
+	}
+	if cmd.SysProcAttr == nil {
+		cmd.SysProcAttr = &syscall.SysProcAttr{}
+	}
+	cmd.SysProcAttr.Setpgid = true
+}
+
+// signalProcessGroup sends sig to the entire process group rooted at cmd.
+// Returns nil if the group is already gone.
+func signalProcessGroup(cmd *exec.Cmd, sig syscall.Signal) error {
+	if cmd == nil || cmd.Process == nil {
+		return nil
+	}
+	if err := syscall.Kill(-cmd.Process.Pid, sig); err != nil &&
+		!errors.Is(err, os.ErrProcessDone) &&
+		!errors.Is(err, syscall.ESRCH) {
+		return err
+	}
+	return nil
+}
+
+// forceKillCmd SIGKILLs the entire process group rooted at cmd. Use this
+// as the last-resort escalation when graceful shutdown has timed out.
+func forceKillCmd(cmd *exec.Cmd) error {
+	return signalProcessGroup(cmd, syscall.SIGKILL)
+}