a64c48f4f9
This fixes two problems: 1) #include SK_SOME_DEFINE doesn't work well for all our clients. 2) Things in include/ are #including things in src/, which we don't like. TBR=reed@google.com BUG=skia: Review URL: https://codereview.chromium.org/862983002
80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
/*
|
|
* 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. However,
|
|
// we preserve the same inheritance pattern as other platforms
|
|
// so that we can forward-declare cleanly.
|
|
struct SkBaseMutex {
|
|
public:
|
|
SkBaseMutex() {
|
|
InitializeCriticalSection(&fStorage);
|
|
SkDEBUGCODE(fOwner = 0;)
|
|
}
|
|
|
|
~SkBaseMutex() {
|
|
SkASSERT(0 == fOwner);
|
|
DeleteCriticalSection(&fStorage);
|
|
}
|
|
|
|
void acquire() {
|
|
EnterCriticalSection(&fStorage);
|
|
SkDEBUGCODE(fOwner = GetCurrentThreadId();)
|
|
}
|
|
|
|
void release() {
|
|
this->assertHeld();
|
|
SkDEBUGCODE(fOwner = 0;)
|
|
LeaveCriticalSection(&fStorage);
|
|
}
|
|
|
|
void assertHeld() {
|
|
SkASSERT(GetCurrentThreadId() == fOwner);
|
|
}
|
|
|
|
protected:
|
|
CRITICAL_SECTION fStorage;
|
|
SkDEBUGCODE(DWORD fOwner;)
|
|
|
|
private:
|
|
SkBaseMutex(const SkBaseMutex&);
|
|
SkBaseMutex& operator=(const SkBaseMutex&);
|
|
};
|
|
|
|
class SkMutex : public SkBaseMutex { };
|
|
|
|
// Windows currently provides no documented means of POD initializing a CRITICAL_SECTION.
|
|
// As a result, it is illegal to SK_DECLARE_STATIC_MUTEX in a function.
|
|
#define SK_DECLARE_STATIC_MUTEX(name) namespace{} static SkBaseMutex name
|
|
|
|
#endif
|