From: Brian Norris <banorris@uci.edu>
Date: Wed, 10 Oct 2012 18:11:55 +0000 (-0700)
Subject: mcs-lock: write proper driver
X-Git-Tag: pldi2013~52
X-Git-Url: http://demsky.eecs.uci.edu/git/?p=model-checker-benchmarks.git;a=commitdiff_plain;h=463fdde327827240420cc3d0efcf319a5c6b54e2

mcs-lock: write proper driver
---

diff --git a/mcs-lock/mcs-lock.cc b/mcs-lock/mcs-lock.cc
index 6ba8f18..a541a2e 100644
--- a/mcs-lock/mcs-lock.cc
+++ b/mcs-lock/mcs-lock.cc
@@ -3,12 +3,38 @@
 
 #include "mcs-lock.h"
 
-struct mcs_mutex mutex;
+/* For data race instrumentation */
+#include "librace.h"
+
+struct mcs_mutex *mutex;
+static uint32_t shared;
+
+void threadA(void *arg)
+{
+	mcs_mutex::guard g(mutex);
+	mutex->lock(&g);
+	printf("store: %d\n", 17);
+	store_32(&shared, 17);
+	mutex->unlock(&g);
+}
+
+void threadB(void *arg)
+{
+	mcs_mutex::guard g(mutex);
+	mutex->lock(&g);
+	printf("load: %u\n", load_32(&shared));
+	mutex->unlock(&g);
+}
 
 int user_main(int argc, char **argv)
 {
-	mcs_mutex::guard *g = new mcs_mutex::guard(&mutex);
-	mutex.lock(g);
-	mutex.unlock(g);
+	thrd_t A, B;
+
+	mutex = new mcs_mutex();
+
+	thrd_create(&A, &threadA, NULL);
+	thrd_create(&B, &threadB, NULL);
+	thrd_join(A);
+	thrd_join(B);
 	return 0;
 }