ref_get()/ref_put() use atomic gcc operations if supported, thanks to Thomas Jarosch...

[strongswan.git] / src / libstrongswan / utils.h

diff --git a/src/libstrongswan/utils.h b/src/libstrongswan/utils.h
index af619ea..298253f 100644 (file)
--- a/src/libstrongswan/utils.h
+++ b/src/libstrongswan/utils.h
@@ -248,6 +248,14 @@ void nop();
  */
 typedef volatile u_int refcount_t;
 
  */
 typedef volatile u_int refcount_t;
 

+
+#ifdef HAVE_GCC_ATOMIC_OPERATIONS
+
+#define ref_get(ref) {__sync_fetch_and_add(ref, 1); }
+#define ref_put(ref) (!__sync_sub_and_fetch(ref, 1))
+
+#else /* !HAVE_GCC_ATOMIC_OPERATIONS */
+

 /**
  * Get a new reference.
  *
 /**
  * Get a new reference.
  *


@@ -268,6 +276,8 @@ void ref_get(refcount_t *ref);
  */
 bool ref_put(refcount_t *ref);
 
  */
 bool ref_put(refcount_t *ref);
 

+#endif /* HAVE_GCC_ATOMIC_OPERATIONS */
+

 /**
  * Get printf hooks for time.
  *
 /**
  * Get printf hooks for time.
  *