1 files changed, 27 insertions, 0 deletions
diff --git a/lib/spinlock.h b/lib/spinlock.h
new file mode 100644
index 0000000..75af28a
--- /dev/null
+++ b/lib/spinlock.h
@@ -0,0 +1,27 @@
+#ifndef JOVE_LIB_SPINLOCK_H
+#define JOVE_LIB_SPINLOCK_H 1
+
+#include <stdatomic.h>
+
+typedef struct Spinlock
+{
+    atomic_flag flg;
+    
+    const char *locker_file;
+    const char *locker_func;
+    int locker_line;
+} spinlock_t;
+
+#define spinlock_acquire(lock) \
+    while(atomic_flag_test_and_set_explicit(&lock.flg, memory_order_acquire)) \
+        __builtin_ia32_pause(); \
+    lock.locker_file = __FILE__; \
+    lock.locker_func = __FUNCTION__; \
+    lock.locker_line = __LINE__
+
+#define spinlock_release(lock) \
+    atomic_flag_clear_explicit(&lock.flg, memory_order_release); \
+    lock.locker_file = lock.locker_func = NULL; \
+    lock.locker_line = -1
+
+#endif