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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_RS_OBJECT_BASE_H
#define ANDROID_RS_OBJECT_BASE_H
#include "rsUtils.h"
#define RS_OBJECT_DEBUG 0
#include <utils/CallStack.h>
namespace android {
namespace renderscript {
class Context;
class OStream;
// An element is a group of Components that occupies one cell in a structure.
class ObjectBase {
public:
ObjectBase(Context *rsc);
void incSysRef() const;
bool decSysRef() const;
void incUserRef() const;
bool decUserRef() const;
bool zeroUserRef() const;
static bool checkDelete(const ObjectBase *);
const char * getName() const {
return mName.string();
}
void setName(const char *);
void setName(const char *, uint32_t len);
Context * getContext() const {return mRSC;}
static void zeroAllUserRef(Context *rsc);
static void dumpAll(Context *rsc);
virtual void dumpLOGV(const char *prefix) const;
virtual void serialize(OStream *stream) const = 0;
virtual RsA3DClassID getClassId() const = 0;
static bool isValid(const Context *rsc, const ObjectBase *obj);
// The async lock is taken during object creation in non-rs threads
// and object deletion in the rs thread.
static void asyncLock();
static void asyncUnlock();
protected:
// Called inside the async lock for any object list management that is
// necessary in derived classes.
virtual void preDestroy() const;
Context *mRSC;
virtual ~ObjectBase();
private:
static pthread_mutex_t gObjectInitMutex;
void add() const;
void remove() const;
String8 mName;
mutable int32_t mSysRefCount;
mutable int32_t mUserRefCount;
mutable const ObjectBase * mPrev;
mutable const ObjectBase * mNext;
#if RS_OBJECT_DEBUG
CallStack mStack;
#endif
};
template<class T>
class ObjectBaseRef {
public:
ObjectBaseRef() {
mRef = NULL;
}
ObjectBaseRef(const ObjectBaseRef &ref) {
mRef = ref.get();
if (mRef) {
mRef->incSysRef();
}
}
ObjectBaseRef(T *ref) {
mRef = ref;
if (mRef) {
ref->incSysRef();
}
}
ObjectBaseRef & operator= (const ObjectBaseRef &ref) {
return ObjectBaseRef(ref);
}
~ObjectBaseRef() {
clear();
}
void set(T *ref) {
if (mRef != ref) {
clear();
mRef = ref;
if (mRef) {
ref->incSysRef();
}
}
}
void set(const ObjectBaseRef &ref) {
set(ref.mRef);
}
void clear() {
if (mRef) {
mRef->decSysRef();
}
mRef = NULL;
}
inline T * get() const {
return mRef;
}
inline T * operator-> () const {
return mRef;
}
protected:
T * mRef;
};
}
}
#endif //ANDROID_RS_OBJECT_BASE_H
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