chromium/third_party/skia/src/core/SkPtrRecorder.h

/*
 * Copyright 2008 The Android Open Source Project
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */


#ifndef SkPtrSet_DEFINED
#define SkPtrSet_DEFINED

#include "include/core/SkFlattenable.h"
#include "include/core/SkRefCnt.h"
#include "include/private/base/SkTDArray.h"

#include <cstdint>

/**
 *  Maintains a set of ptrs, assigning each a unique ID [1...N]. Duplicate ptrs
 *  return the same ID (since its a set). Subclasses can override inPtr()
 *  and decPtr(). incPtr() is called each time a unique ptr is added ot the
 *  set. decPtr() is called on each ptr when the set is destroyed or reset.
 */
class SkPtrSet : public SkRefCnt { … };

/**
 *  Templated wrapper for SkPtrSet, just meant to automate typecasting
 *  parameters to and from void* (which the base class expects).
 */
template <typename T> class SkTPtrSet : public SkPtrSet { … };

/**
 *  Subclass of SkTPtrSet specialed to call ref() and unref() when the
 *  base class's incPtr() and decPtr() are called. This makes it a valid owner
 *  of each ptr, which is released when the set is reset or destroyed.
 */
class SkRefCntSet : public SkTPtrSet<SkRefCnt*> { … };

class SkFactorySet : public SkTPtrSet<SkFlattenable::Factory> { … };

/**
 * Similar to SkFactorySet, but only allows Factorys that have registered names.
 * Also has a function to return the next added Factory's name.
 */
class SkNamedFactorySet : public SkRefCnt { … };

#endif