From bf9a1060e0af1f9335a342bb4ca54a606b1bdabf Mon Sep 17 00:00:00 2001
From: Matt Strapp <strap012@umn.edu>
Date: Mon, 7 Dec 2020 10:12:32 -0600
Subject: Add some comments

---
 P4/util.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/P4/util.c b/P4/util.c
index e924575..ded2dfa 100644
--- a/P4/util.c
+++ b/P4/util.c
@@ -17,6 +17,7 @@
 
 //Global socket
 int sockfd;
+//Make sure one connection is dealt with at a time
 pthread_mutex_t connection = PTHREAD_MUTEX_INITIALIZER;
 
 /**********************************************
@@ -179,7 +180,7 @@ int return_result(int fd, char *content_type, char *buf, int numbytes) {
    - returns 0 on success, nonzero on failure.
 ************************************************/
 int return_error(int fd, char *buf) {
-  //Convert low IO to high IO
+  //Convert low IO to high IO to be able to fprintf
   FILE *fdstream = fdopen(fd, "w");
   if (fdstream == NULL) {
     printf("File stream conversion(?) failed.\n");
-- 
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