fix temporal build for windows (#3045)

temporal-service/syscall_unix.go

@@ -0,0 +1,27 @@
+//go:build !windows
+// +build !windows
+
+package main
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+// configureSysProcAttr configures the SysProcAttr for Unix-like systems
+func configureSysProcAttr(cmd *exec.Cmd) {
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		Setpgid: true, // Create new process group
+		Pgid:    0,    // Use process ID as group ID
+	}
+}
+
+// killProcessByPID kills a process using Unix syscalls
+func killProcessByPID(pid int, signal syscall.Signal) error {
+	return syscall.Kill(pid, signal)
+}
+
+// killProcessGroupByPID kills a process group using Unix syscalls
+func killProcessGroupByPID(pid int, signal syscall.Signal) error {
+	return syscall.Kill(-pid, signal)
+}