From 32cd3ba42b89141b324a085db70c54d53befb8ef Mon Sep 17 00:00:00 2001
From: Ali Mashtizadeh <mashti@uwaterloo.ca>
Date: Mon, 2 Oct 2023 19:53:08 -0400
Subject: [PATCH] Add WIFEXITED

---
 sys/include/wait.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/include/wait.h b/sys/include/wait.h
index 8c1c6bf..e1903bb 100644
--- a/sys/include/wait.h
+++ b/sys/include/wait.h
@@ -4,8 +4,12 @@
 
 #include <sys/cdefs.h>
 
-/* Extract the status code from the process */
+/* Extract the status code from the status */
 #define WEXITSTATUS(_x)	(_x & 0x000000ff)
+#define _WSTATUS(_x) ((_x & 0x0000ff00) >> 8)
+/* Exited gracefully */
+#define WIFEXITED(_x) (_WSTATUS(_x) == 0)
+/* Extract the pid from the status (Castor specific) */
 #define WGETPID(_x)	((pid_t)(_x >> 16))
 
 /* Flags to waitpid  */