gfx/skia/trunk/src/ports/SkAtomics_none.h@deefc01c0e14
gfx/skia/trunk/src/ports/SkAtomics_none.h
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
1 /*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
8 #ifndef SkAtomics_none_DEFINED
9 #define SkAtomics_none_DEFINED
11 /** Non-atomic atomics for uniprocessor systems. */
13 #include <stdint.h>
15 static inline int32_t sk_atomic_inc(int32_t* addr) {
16 int32_t value = *addr;
17 *addr = value + 1;
18 return value;
19 }
21 static inline int32_t sk_atomic_add(int32_t* addr, int32_t inc) {
22 int32_t value = *addr;
23 *addr = value + inc;
24 return value;
25 }
27 static inline int32_t sk_atomic_dec(int32_t* addr) {
28 int32_t value = *addr;
29 *addr = value - 1;
30 return value;
31 }
33 static inline void sk_membar_acquire__after_atomic_dec() { }
35 static inline int32_t sk_atomic_conditional_inc(int32_t* addr) {
36 int32_t value = *addr;
37 if (value != 0) ++*addr;
38 return value;
39 }
41 static inline bool sk_atomic_cas(int32_t* addr, int32_t before, int32_t after) {
42 if (*addr != before) return false;
43 *addr = after;
44 return true;
45 }
47 static inline void sk_membar_acquire__after_atomic_conditional_inc() { }
49 #endif
