Remove duplicate atomic_int implementation

diff --git a/src/hb-mutex-private.hh b/src/hb-mutex-private.hh
index 32b387c..5a74337 100644 (file)
--- a/src/hb-mutex-private.hh
+++ b/src/hb-mutex-private.hh
@@ -45,11 +45,6 @@ HB_BEGIN_DECLS
 
 #include <glib.h>
 
-typedef volatile int hb_atomic_int_t;
-#define hb_atomic_int_fetch_and_add(AI, V)     g_atomic_int_exchange_and_add (&(AI), V)
-#define hb_atomic_int_get(AI)                  g_atomic_int_get (&(AI))
-#define hb_atomic_int_set(AI, V)               g_atomic_int_set (&(AI), V)
-
 typedef GStaticMutex hb_mutex_t;
 #define HB_MUTEX_INIT                  G_STATIC_MUTEX_INIT
 #define hb_mutex_init(M)               g_static_mutex_init (M)
@@ -61,13 +56,6 @@ typedef GStaticMutex hb_mutex_t;
 
 #elif defined(_MSC_VER)
 
-#include <intrin.h>
-
-typedef long hb_atomic_int_t;
-#define hb_atomic_int_fetch_and_add(AI, V)     _InterlockedExchangeAdd (&(AI), V)
-#define hb_atomic_int_get(AI)                  (_ReadBarrier (), (AI))
-#define hb_atomic_int_set(AI, V)               ((void) _InterlockedExchange (&(AI), (V)))
-
 #include <Windows.h>
 
 typedef CRITICAL_SECTION hb_mutex_t;
@@ -83,11 +71,6 @@ typedef CRITICAL_SECTION hb_mutex_t;
 
 #warning "Could not find any system to define platform macros, library will NOT be thread-safe"
 
-typedef volatile int hb_atomic_int_t;
-#define hb_atomic_int_fetch_and_add(AI, V)     ((AI) += (V), (AI) - (V))
-#define hb_atomic_int_get(AI)                  (AI)
-#define hb_atomic_int_set(AI, V)               ((void) ((AI) = (V)))
-
 typedef volatile int hb_mutex_t;
 #define HB_MUTEX_INIT                          0
 #define hb_mutex_init(M)                       ((void) (*(M) = 0))