OLD | NEW |
| (Empty) |
1 /* libs/graphics/ports/SkThread_none.cpp | |
2 ** | |
3 ** Copyright 2008, The Android Open Source Project | |
4 ** | |
5 ** Licensed under the Apache License, Version 2.0 (the "License"); | |
6 ** you may not use this file except in compliance with the License. | |
7 ** You may obtain a copy of the License at | |
8 ** | |
9 ** http://www.apache.org/licenses/LICENSE-2.0 | |
10 ** | |
11 ** Unless required by applicable law or agreed to in writing, software | |
12 ** distributed under the License is distributed on an "AS IS" BASIS, | |
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 ** See the License for the specific language governing permissions and | |
15 ** limitations under the License. | |
16 */ | |
17 | |
18 #include <windows.h> | |
19 #include "SkThread.h" | |
20 | |
21 namespace { | |
22 | |
23 template <bool> | |
24 struct CompileAssert { | |
25 }; | |
26 | |
27 } // namespace | |
28 | |
29 #define COMPILE_ASSERT(expr, msg) \ | |
30 typedef CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1] | |
31 | |
32 int32_t sk_atomic_inc(int32_t* addr) | |
33 { | |
34 // InterlockedIncrement returns the new value, we want to return the old. | |
35 return InterlockedIncrement(reinterpret_cast<LONG*>(addr)) - 1; | |
36 } | |
37 | |
38 int32_t sk_atomic_dec(int32_t* addr) | |
39 { | |
40 return InterlockedDecrement(reinterpret_cast<LONG*>(addr)) + 1; | |
41 } | |
42 | |
43 SkMutex::SkMutex(bool /* isGlobal */) | |
44 { | |
45 COMPILE_ASSERT(sizeof(fStorage) > sizeof(CRITICAL_SECTION), | |
46 NotEnoughSizeForCriticalSection); | |
47 InitializeCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage)); | |
48 } | |
49 | |
50 SkMutex::~SkMutex() | |
51 { | |
52 DeleteCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage)); | |
53 } | |
54 | |
55 void SkMutex::acquire() | |
56 { | |
57 EnterCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage)); | |
58 } | |
59 | |
60 void SkMutex::release() | |
61 { | |
62 LeaveCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage)); | |
63 } | |
64 | |
OLD | NEW |