mutex simple

tp2/mutex.c

+#include <stdio.h>
+#include <pthread.h>
+
+long int compteur = 0;
+
+void *increment(void *arg)
+{
+    for (size_t i = 0; i < 1000000; i++)
+        compteur++;
+    
+    pthread_exit(NULL);
+}
+
+int main(void)
+{
+    pthread_t threads[4];
+
+    for (size_t i = 0; i < 4; i++)
+    {
+        pthread_create(threads+i, NULL, increment, NULL);
+    }
+
+    for (size_t i = 0; i < 4; i++)
+    {
+        pthread_join(threads[i], NULL);
+    }
+    
+    printf("%ld\n", compteur);
+
+    return 0;
+}
+