add: control flow

1 files changed, 36 insertions, 0 deletions

diff --git a/internal/server/sysproc_unix.go b/internal/server/sysproc_unix.go
new file mode 100644
index 0000000..91dee0e
--- /dev/null
+++ b/internal/server/sysproc_unix.go
@@ -0,0 +1,36 @@
+//go:build !windows
+
+package server
+
+import (
+	"os"
+	"syscall"
+)
+
+func detachAttr() *syscall.SysProcAttr {
+	return &syscall.SysProcAttr{Setsid: true}
+}
+
+func signalStop(pid int) error {
+	proc, err := os.FindProcess(pid)
+	if err != nil {
+		return err
+	}
+	return proc.Signal(syscall.SIGTERM)
+}
+
+func forceKill(pid int) error {
+	proc, err := os.FindProcess(pid)
+	if err != nil {
+		return err
+	}
+	return proc.Kill()
+}
+
+func isAlive(pid int) bool {
+	proc, err := os.FindProcess(pid)
+	if err != nil {
+		return false
+	}
+	return proc.Signal(syscall.Signal(0)) == nil
+}