The CDSSpec checker's benchmarks

[model-checker-benchmarks.git] / linuxrwlocks / testcase1.c

diff --git a/linuxrwlocks/testcase1.c b/linuxrwlocks/testcase1.c
new file mode 100644 (file)
index 0000000..8051cdc
--- /dev/null
+++ b/linuxrwlocks/testcase1.c
@@ -0,0 +1,72 @@
+#include <stdio.h>
+#include <threads.h>
+#include <stdatomic.h>
+
+#include "librace.h"
+#include "linuxrwlocks.h"
+
+rwlock_t mylock;
+int shareddata;
+
+atomic_int x, y;
+
+static void a(void *obj)
+{
+       write_lock(&mylock);
+       //atomic_store_explicit(&x, 17, memory_order_relaxed);
+       write_unlock(&mylock);
+
+/*
+
+       if (!write_can_lock(&mylock))
+               return;
+
+       if (write_trylock(&mylock)) {
+               atomic_store_explicit(&x, 17, memory_order_relaxed);
+               write_unlock(&mylock);
+       }
+*/
+}
+
+static void b(void *obj)
+{
+       //if (write_trylock(&mylock)) {
+               //atomic_store_explicit(&x, 16, memory_order_relaxed);
+       //      write_unlock(&mylock);
+       //}
+
+       read_lock(&mylock);
+       //atomic_load_explicit(&x, memory_order_relaxed);
+       read_unlock(&mylock);
+
+/*
+       if (write_trylock(&mylock)) {
+               atomic_store_explicit(&x, 16, memory_order_relaxed);
+               write_unlock(&mylock);
+       }
+
+       if (!read_can_lock(&mylock))
+               return;
+       if (read_trylock(&mylock)) {
+               atomic_load_explicit(&x, memory_order_relaxed);
+               read_unlock(&mylock);
+       }
+*/
+}
+
+int user_main(int argc, char **argv)
+{
+       thrd_t t1, t2;
+       atomic_init(&mylock.lock, RW_LOCK_BIAS);
+       atomic_init(&x, 0);
+       atomic_init(&y, 0);
+
+       /** @Entry */
+       thrd_create(&t1, (thrd_start_t)&a, NULL);
+       thrd_create(&t2, (thrd_start_t)&b, NULL);
+
+       thrd_join(t1);
+       thrd_join(t2);
+
+       return 0;
+}