rsObjectBase.cpp revision f2649a961db2995e9e24a6c98f8a419f1496c1b7 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "rsObjectBase.h"
18#include "rsContext.h"
19
20using namespace android;
21using namespace android::renderscript;
22
23ObjectBase::ObjectBase(Context *rsc)
24{
25    mUserRefCount = 0;
26    mSysRefCount = 0;
27    mName = NULL;
28    mRSC = NULL;
29    mNext = NULL;
30    mPrev = NULL;
31    mAllocFile = __FILE__;
32    mAllocLine = __LINE__;
33    setContext(rsc);
34}
35
36ObjectBase::~ObjectBase()
37{
38    //LOGV("~ObjectBase %p  ref %i,%i", this, mUserRefCount, mSysRefCount);
39    rsAssert(!mUserRefCount);
40    rsAssert(!mSysRefCount);
41    remove();
42}
43
44void ObjectBase::dumpObj(const char *op) const
45{
46    if (mName) {
47        LOGV("%s RSobj %p, name %s, refs %i,%i  from %s,%i links %p,%p,%p",
48             op, this, mName, mUserRefCount, mSysRefCount, mAllocFile, mAllocLine, mNext, mPrev, mRSC);
49    } else {
50        LOGV("%s RSobj %p, no-name, refs %i,%i  from %s,%i links %p,%p,%p",
51             op, this, mUserRefCount, mSysRefCount, mAllocFile, mAllocLine, mNext, mPrev, mRSC);
52    }
53}
54
55void ObjectBase::setContext(Context *rsc)
56{
57    if (mRSC) {
58        remove();
59    }
60    mRSC = rsc;
61    if (rsc) {
62        add();
63    }
64}
65
66void ObjectBase::incUserRef() const
67{
68    mUserRefCount ++;
69    //LOGV("ObjectBase %p inc ref %i", this, mRefCount);
70}
71
72void ObjectBase::incSysRef() const
73{
74    mSysRefCount ++;
75    //LOGV("ObjectBase %p inc ref %i", this, mRefCount);
76}
77
78bool ObjectBase::checkDelete() const
79{
80    if (!(mSysRefCount | mUserRefCount)) {
81        if (mRSC && mRSC->props.mLogObjects) {
82            dumpObj("checkDelete");
83        }
84        delete this;
85        return true;
86    }
87    return false;
88}
89
90bool ObjectBase::decUserRef() const
91{
92    rsAssert(mUserRefCount > 0);
93    mUserRefCount --;
94    //dumpObj("decUserRef");
95    return checkDelete();
96}
97
98bool ObjectBase::zeroUserRef() const
99{
100    mUserRefCount = 0;
101    //dumpObj("zeroUserRef");
102    return checkDelete();
103}
104
105bool ObjectBase::decSysRef() const
106{
107    rsAssert(mSysRefCount > 0);
108    mSysRefCount --;
109    //dumpObj("decSysRef");
110    return checkDelete();
111}
112
113void ObjectBase::setName(const char *name)
114{
115    delete mName;
116    mName = NULL;
117    if (name) {
118        mName = new char[strlen(name) +1];
119        strcpy(mName, name);
120    }
121}
122
123void ObjectBase::setName(const char *name, uint32_t len)
124{
125    delete mName;
126    mName = NULL;
127    if (name) {
128        mName = new char[len + 1];
129        memcpy(mName, name, len);
130        mName[len] = 0;
131    }
132}
133
134void ObjectBase::add() const
135{
136    rsAssert(!mNext);
137    rsAssert(!mPrev);
138    //LOGV("calling add  rsc %p", mRSC);
139    mNext = mRSC->mObjHead;
140    if (mRSC->mObjHead) {
141        mRSC->mObjHead->mPrev = this;
142    }
143    mRSC->mObjHead = this;
144}
145
146void ObjectBase::remove() const
147{
148    //LOGV("calling remove  rsc %p", mRSC);
149    if (!mRSC) {
150        rsAssert(!mPrev);
151        rsAssert(!mNext);
152        return;
153    }
154    if (mRSC->mObjHead == this) {
155        mRSC->mObjHead = mNext;
156    }
157    if (mPrev) {
158        mPrev->mNext = mNext;
159    }
160    if (mNext) {
161        mNext->mPrev = mPrev;
162    }
163    mPrev = NULL;
164    mNext = NULL;
165}
166
167void ObjectBase::zeroAllUserRef(Context *rsc)
168{
169    if (rsc->props.mLogObjects) {
170        LOGV("Forcing release of all outstanding user refs.");
171    }
172
173    // This operation can be slow, only to be called during context cleanup.
174    const ObjectBase * o = rsc->mObjHead;
175    while (o) {
176        //LOGE("o %p", o);
177        if (o->zeroUserRef()) {
178            // deleted the object and possibly others, restart from head.
179            o = rsc->mObjHead;
180            //LOGE("o head %p", o);
181        } else {
182            o = o->mNext;
183            //LOGE("o next %p", o);
184        }
185    }
186
187    if (rsc->props.mLogObjects) {
188        LOGV("Objects remaining.");
189        o = rsc->mObjHead;
190        while (o) {
191            o->dumpObj("  ");
192            o = o->mNext;
193        }
194    }
195}
196
197