blob: f4b8234e85d70305ee28deb634158ae703a0734d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkMutex_win_DEFINED
#define SkMutex_win_DEFINED
/** Windows CriticalSection based mutex. */
#ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
# define WIN32_IS_MEAN_WAS_LOCALLY_DEFINED
#endif
#ifndef NOMINMAX
# define NOMINMAX
# define NOMINMAX_WAS_LOCALLY_DEFINED
#endif
#
#include <windows.h>
#
#ifdef WIN32_IS_MEAN_WAS_LOCALLY_DEFINED
# undef WIN32_IS_MEAN_WAS_LOCALLY_DEFINED
# undef WIN32_LEAN_AND_MEAN
#endif
#ifdef NOMINMAX_WAS_LOCALLY_DEFINED
# undef NOMINMAX_WAS_LOCALLY_DEFINED
# undef NOMINMAX
#endif
// On Windows, SkBaseMutex and SkMutex are the same thing,
// we can't easily get rid of static initializers.
class SkMutex {
public:
SkMutex() {
InitializeCriticalSection(&fStorage);
}
~SkMutex() {
DeleteCriticalSection(&fStorage);
}
void acquire() {
EnterCriticalSection(&fStorage);
}
void release() {
LeaveCriticalSection(&fStorage);
}
private:
SkMutex(const SkMutex&);
SkMutex& operator=(const SkMutex&);
CRITICAL_SECTION fStorage;
};
typedef SkMutex SkBaseMutex;
// Windows currently provides no documented means of POD initializing a CRITICAL_SECTION.
#define SK_DECLARE_STATIC_MUTEX(name) static SkBaseMutex name
#define SK_DECLARE_GLOBAL_MUTEX(name) SkBaseMutex name
#endif
|
