Spinlocks

spinlocks/main.c

@@ -0,0 +1,31 @@
+#include <pthread.h>
+#include <stdio.h>
+#include "spinlock.h"
+
+spinlock_t lock;
+int             counter = 0;
+
+void *worker(void *arg) {
+    printf("Hello from %s!\n", (char *)arg);
+    for (int i = 0; i < 100000; i++) {
+        acquire(&lock);
+        counter++;
+        release(&lock);
+    }
+    return NULL;
+}
+
+int main() {
+    pthread_t thread1, thread2;
+
+    initlock(&lock);
+
+    pthread_create(&thread1, NULL, worker, "Thread1");
+    pthread_create(&thread2, NULL, worker, "Thread2");
+
+    pthread_join(thread1, NULL);
+    pthread_join(thread2, NULL);
+
+    printf("Counter value: %d\n", counter);
+    return 0;
+}