Adding src/pid/pid.go

src/pid/pid.go

@@ -0,0 +1,28 @@
+
+package pid
+
+import (
+	"os"
+	"strconv"
+)
+
+func Get() (int) {
+	return os.Getpid()
+}
+
+func Save(path string) (int, error) {
+
+	pid := Get()
+	fd, err := os.Create(path)
+	if err != nil {
+    	return -1, err
+	}
+
+	_, err = fd.WriteString(strconv.Itoa(pid))
+
+	if err != nil {
+		return -1, err
+	}
+
+	return pid, nil
+}