--- /dev/null
+/*
+ +----------------------------------------------------------------------+
+ | APC |
+ +----------------------------------------------------------------------+
+ | Copyright (c) 2007 The PHP Group |
+ +----------------------------------------------------------------------+
+ | This source file is subject to version 3.01 of the PHP license, |
+ | that is bundled with this package in the file LICENSE, and is |
+ | available through the world-wide-web at the following url: |
+ | http://www.php.net/license/3_01.txt |
+ | If you did not receive a copy of the PHP license and are unable to |
+ | obtain it through the world-wide-web, please send a note to |
+ | license@php.net so we can mail you a copy immediately. |
+ +----------------------------------------------------------------------+
+ | Authors: Brian Shire <shire@php.net> |
+ +----------------------------------------------------------------------+
+
+ */
+
+/* $Id: apc_spin.c,v 3.1 2007/01/29 07:39:02 shire Exp $ */
+
+#include "apc_spin.h"
+
+#ifdef APC_SPIN_LOCKS
+
+slock_t *apc_slock_create(slock_t *lock)
+{
+ S_INIT_LOCK(lock);
+}
+
+void apc_slock_destroy(slock_t *lock)
+{
+ S_LOCK_FREE(lock);
+}
+
+void apc_slock_lock(slock_t *lock)
+{
+ S_LOCK(lock);
+}
+
+void apc_slock_unlock(slock_t *lock)
+{
+ S_UNLOCK(lock);
+}
+
+zend_bool apc_slock_nonblocking_lock(slock_t *lock)
+{
+ /* Technically we aren't supposed to call this directly, but the original
+ * code provides no method for absolute non-blocking locks, so we'll call into
+ * the TAS (test and set) functionality directly
+ */
+ return !(TAS(lock)); /* if TAS returns 0 we obtained the lock, otherwise we failed */
+}
+
+
+#endif
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: expandtab sw=4 ts=4 sts=4 fdm=marker
+ * vim<600: expandtab sw=4 ts=4 sts=4
+ */