From eb458efa59d65cc2b06011c78cd3b9e126e2b495 Mon Sep 17 00:00:00 2001
From: Themis Demetriades <td1223@ic.ac.uk>
Date: Sun, 3 Nov 2024 17:38:38 +0000
Subject: [PATCH] Update process_wait skeleton to loop infinitely for testing
 purposes

---
 src/userprog/process.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/userprog/process.c b/src/userprog/process.c
index 49b9bd5..fdcf2c4 100644
--- a/src/userprog/process.c
+++ b/src/userprog/process.c
@@ -17,6 +17,7 @@
 #include "threads/palloc.h"
 #include "threads/thread.h"
 #include "threads/vaddr.h"
+#include "threads/synch.h"
 
 static thread_func start_process NO_RETURN;
 static bool load (const char *cmdline, void (**eip) (void), void **esp);
@@ -88,7 +89,12 @@ start_process (void *file_name_)
 int
 process_wait (tid_t child_tid UNUSED) 
 {
-  return -1;
+  /* TODO: Implement correct process waiting behaviour.
+    Currently an infinite loop for testing purposes. */
+  while (1)
+    {
+      barrier ();
+    }
 }
 
 /* Free the current process's resources. */