ab1c13864d
Add INHERITED declarations to class declarations that prevent compilation with the flag. Remove SK_DEFINE_INST_COUNT from all class implementations. Instead, use function-local static variables in the reference count helper classes to create the global instances to store the needed info. The accessor functions are defined inline in the helper classes, so definitions are not needed. The initialization point of the variables should be as well defined as previously. Remove SK_DECLARE_INST_COUNT_TEMPLATE and use SK_DECLARE_INST_COUNT instead. This avoids possible future compilation errors further. For SK_ENABLE_INST_COUNT=0 compilation, add an empty static member function to all classes that use SK_DECLARE_INST_COUNT and SK_DECLARE_INST_COUNT_ROOT macros. The function ensures that classes contain public INHERITED typedef. This member function seems to be compiled away. This shouĺd ensure that part of the compilation errors are caught earlier. Also adds DSK_DECLARE_INST_COUNT to few SkPDFDict subclasses. R=robertphillips@google.com, richardlin@chromium.org, bsalomon@google.com Author: kkinnunen@nvidia.com Review URL: https://codereview.chromium.org/98703002 git-svn-id: http://skia.googlecode.com/svn/trunk@12501 2bbb7eff-a529-9590-31e7-b0007b416f81
128 lines
7.6 KiB
C++
128 lines
7.6 KiB
C++
/*
|
|
* Copyright 2012 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
|
|
#ifndef SkInstCnt_DEFINED
|
|
#define SkInstCnt_DEFINED
|
|
|
|
/*
|
|
* The instance counting system consists of three macros that create the
|
|
* instance counting machinery. A class is added to the system by adding:
|
|
* SK_DECLARE_INST_COUNT at the top of its declaration for derived classes
|
|
* SK_DECLARE_INST_COUNT_ROOT at the top of its declaration for a root class
|
|
* At the end of an application a call to all the "root" objects'
|
|
* CheckInstanceCount methods should be made
|
|
*/
|
|
#include "SkTypes.h"
|
|
|
|
#if SK_ENABLE_INST_COUNT
|
|
#include "SkTArray.h"
|
|
#include "SkThread_platform.h"
|
|
|
|
extern bool gPrintInstCount;
|
|
|
|
// The non-root classes just register themselves with their parent
|
|
#define SK_DECLARE_INST_COUNT(className) \
|
|
SK_DECLARE_INST_COUNT_INTERNAL(className, \
|
|
INHERITED::AddInstChild(CheckInstanceCount);)
|
|
|
|
// The root classes registers a function to print out the memory stats when
|
|
// the app ends
|
|
#define SK_DECLARE_INST_COUNT_ROOT(className) \
|
|
SK_DECLARE_INST_COUNT_INTERNAL(className, atexit(exitPrint);)
|
|
|
|
#define SK_DECLARE_INST_COUNT_INTERNAL(className, initStep) \
|
|
class SkInstanceCountHelper { \
|
|
public: \
|
|
typedef int (*PFCheckInstCnt)(int level, bool cleanUp); \
|
|
SkInstanceCountHelper() { \
|
|
static bool gInited; \
|
|
if (!gInited) { \
|
|
initStep \
|
|
GetChildren() = new SkTArray<PFCheckInstCnt>; \
|
|
gInited = true; \
|
|
} \
|
|
sk_atomic_inc(GetInstanceCountPtr()); \
|
|
} \
|
|
\
|
|
SkInstanceCountHelper(const SkInstanceCountHelper&) { \
|
|
sk_atomic_inc(GetInstanceCountPtr()); \
|
|
} \
|
|
\
|
|
~SkInstanceCountHelper() { \
|
|
sk_atomic_dec(GetInstanceCountPtr()); \
|
|
} \
|
|
\
|
|
static int32_t* GetInstanceCountPtr() { \
|
|
static int32_t gInstanceCount; \
|
|
return &gInstanceCount; \
|
|
} \
|
|
\
|
|
static SkTArray<PFCheckInstCnt>*& GetChildren() { \
|
|
static SkTArray<PFCheckInstCnt>* gChildren; \
|
|
return gChildren; \
|
|
} \
|
|
\
|
|
} fInstanceCountHelper; \
|
|
\
|
|
static int32_t GetInstanceCount() { \
|
|
return *SkInstanceCountHelper::GetInstanceCountPtr(); \
|
|
} \
|
|
\
|
|
static void exitPrint() { \
|
|
CheckInstanceCount(0, true); \
|
|
} \
|
|
\
|
|
static int CheckInstanceCount(int level = 0, bool cleanUp = false) { \
|
|
if (gPrintInstCount && 0 != GetInstanceCount()) { \
|
|
SkDebugf("%*c Leaked %s: %d\n", \
|
|
4*level, ' ', #className, \
|
|
GetInstanceCount()); \
|
|
} \
|
|
if (NULL == SkInstanceCountHelper::GetChildren()) { \
|
|
return GetInstanceCount(); \
|
|
} \
|
|
SkTArray<int (*)(int, bool)>* children = \
|
|
SkInstanceCountHelper::GetChildren(); \
|
|
int childCount = children->count(); \
|
|
int count = GetInstanceCount(); \
|
|
for (int i = 0; i < childCount; ++i) { \
|
|
count -= (*(*children)[i])(level+1, cleanUp); \
|
|
} \
|
|
SkASSERT(count >= 0); \
|
|
if (gPrintInstCount && childCount > 0 && count > 0) { \
|
|
SkDebugf("%*c Leaked ???: %d\n", 4*(level + 1), ' ', count); \
|
|
} \
|
|
if (cleanUp) { \
|
|
delete children; \
|
|
SkInstanceCountHelper::GetChildren() = NULL; \
|
|
} \
|
|
return GetInstanceCount(); \
|
|
} \
|
|
\
|
|
static void AddInstChild(int (*childCheckInstCnt)(int, bool)) { \
|
|
if (CheckInstanceCount != childCheckInstCnt && \
|
|
NULL != SkInstanceCountHelper::GetChildren()) { \
|
|
SkInstanceCountHelper::GetChildren()->push_back(childCheckInstCnt); \
|
|
} \
|
|
}
|
|
|
|
#else
|
|
// Typically SK_ENABLE_INST_COUNT=0. Make sure the class declares public typedef INHERITED by
|
|
// causing a compile-time error if the typedef is missing. This way SK_ENABLE_INST_COUNT=1 stays
|
|
// compiling.
|
|
#define SK_DECLARE_INST_COUNT(className) static void AddInstChild() { INHERITED::AddInstChild(); }
|
|
#define SK_DECLARE_INST_COUNT_ROOT(className) static void AddInstChild() { }
|
|
#endif
|
|
|
|
// Following are deprecated. They are defined only for backwards API compatibility.
|
|
#define SK_DECLARE_INST_COUNT_TEMPLATE(className) SK_DECLARE_INST_COUNT(className)
|
|
#define SK_DEFINE_INST_COUNT(className)
|
|
#define SK_DEFINE_INST_COUNT_TEMPLATE(templateInfo, className)
|
|
|
|
#endif // SkInstCnt_DEFINED
|