denozord/strongswan-ext
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

utils: ref_get() returns the new value of the reference counter

Browse Source 
This allows us to use ref_get() for getting unique values.
This commit is contained in:
Martin Willi
2013-06-11 15:54:27 +02:00
parent 37a60cad3c
commit 3160b92adb
2 changed files with 9 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libstrongswan/utils/utils.c
+6 -2
View File
@@ -466,11 +466,15 @@ static pthread_mutex_t ref_mutex = PTHREAD_MUTEX_INITIALIZER;
/** /**
* Increase refcount * Increase refcount
*/ */
void ref_get(refcount_t *ref) refcount_t ref_get(refcount_t *ref)
{ {
refcount_t current;
pthread_mutex_lock(&ref_mutex); pthread_mutex_lock(&ref_mutex);
(*ref)++; current = ++(*ref);
pthread_mutex_unlock(&ref_mutex); pthread_mutex_unlock(&ref_mutex);
return current;
} }
/** /**
src/libstrongswan/utils/utils.h
+3 -2
View File
@@ -661,7 +661,7 @@ typedef volatile u_int refcount_t;
#ifdef HAVE_GCC_ATOMIC_OPERATIONS #ifdef HAVE_GCC_ATOMIC_OPERATIONS
#define ref_get(ref) {__sync_fetch_and_add(ref, 1); } #define ref_get(ref) __sync_add_and_fetch(ref, 1)
#define ref_put(ref) (!__sync_sub_and_fetch(ref, 1)) #define ref_put(ref) (!__sync_sub_and_fetch(ref, 1))
#define cas_bool(ptr, oldval, newval) \ #define cas_bool(ptr, oldval, newval) \
@@ -677,8 +677,9 @@ typedef volatile u_int refcount_t;
* Increments the reference counter atomic. * Increments the reference counter atomic.
* *
* @param ref pointer to ref counter * @param ref pointer to ref counter
* @return new value of ref
*/ */
void ref_get(refcount_t *ref); refcount_t ref_get(refcount_t *ref);
/** /**
* Put back a unused reference. * Put back a unused reference.