From: Laurent MAZET <laurent.mazet@thalesgroup.com>
Date: Mon, 6 Oct 2025 09:52:42 +0000 (+0200)
Subject: correct mq latency test
X-Git-Url: https://secure.softndesign.org/git/?a=commitdiff_plain;h=6817c75cd191fb941dc05d591fbba3acde160b87;p=benchmarks.git

correct mq latency test
---

diff --git a/mq_lat.c b/mq_lat.c
index 63b1145..f787397 100644
--- a/mq_lat.c
+++ b/mq_lat.c
@@ -62,11 +62,12 @@ void *ping (__attribute__((unused)) void *arg)
 
     while (try < nb_measurements) {
 
+        char *msg = get_msg (MSGLEN);
+
         pthread_mutex_lock (&mutex);
         pthread_mutex_unlock (&mutex);
 
         sys_timestamp (&ts1);
-        char *msg = get_msg (MSGLEN);
         if (mq_send (mq, msg, MSGLEN, 0) == -1) {
             fprintf (stderr, "ping error: mq_send (%d)\n", try);
             rc = 1;
@@ -107,7 +108,7 @@ void *pong (__attribute__((unused)) void *arg)
         pthread_mutex_unlock (&mutex);
 
         char buffer[MAXBUF] = { 0 };
-        if (mq_receive (mq, buffer, sizeof(buffer), NULL) == -1) {
+        if (mq_receive (mq, buffer, sizeof(buffer) - 1, NULL) == -1) {
             fprintf (stderr, "pong error: mq_receive (%d)\n", try);
             rc = 1;
             pthread_exit (NULL);