From f004c1ade8d617a82cea2fe249434cccb47a2358 Mon Sep 17 00:00:00 2001
From: Jon Santmyer <jon@jonsantmyer.com>
Date: Tue, 19 Mar 2024 13:03:52 -0400
Subject: rename abi to sys. better memory allocation

---
 lib/spinlock.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 lib/spinlock.h

(limited to 'lib')

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
-- 
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