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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 
20 using namespace android;
21 using namespace android::renderscript;
22 
ObjectBase(Context * rsc)23 ObjectBase::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 
~ObjectBase()36 ObjectBase::~ObjectBase()
37 {
38     //LOGV("~ObjectBase %p  ref %i,%i", this, mUserRefCount, mSysRefCount);
39     rsAssert(!mUserRefCount);
40     rsAssert(!mSysRefCount);
41     remove();
42     delete[] mName;
43 }
44 
dumpLOGV(const char * op) const45 void ObjectBase::dumpLOGV(const char *op) const
46 {
47     if (mName) {
48         LOGV("%s RSobj %p, name %s, refs %i,%i  from %s,%i links %p,%p,%p",
49              op, this, mName, mUserRefCount, mSysRefCount, mAllocFile, mAllocLine, mNext, mPrev, mRSC);
50     } else {
51         LOGV("%s RSobj %p, no-name, refs %i,%i  from %s,%i links %p,%p,%p",
52              op, this, mUserRefCount, mSysRefCount, mAllocFile, mAllocLine, mNext, mPrev, mRSC);
53     }
54 }
55 
setContext(Context * rsc)56 void ObjectBase::setContext(Context *rsc)
57 {
58     if (mRSC) {
59         remove();
60     }
61     mRSC = rsc;
62     if (rsc) {
63         add();
64     }
65 }
66 
incUserRef() const67 void ObjectBase::incUserRef() const
68 {
69     mUserRefCount ++;
70     //LOGV("ObjectBase %p inc ref %i", this, mRefCount);
71 }
72 
incSysRef() const73 void ObjectBase::incSysRef() const
74 {
75     mSysRefCount ++;
76     //LOGV("ObjectBase %p inc ref %i", this, mRefCount);
77 }
78 
checkDelete() const79 bool ObjectBase::checkDelete() const
80 {
81     if (!(mSysRefCount | mUserRefCount)) {
82         if (mRSC && mRSC->props.mLogObjects) {
83             dumpLOGV("checkDelete");
84         }
85         delete this;
86         return true;
87     }
88     return false;
89 }
90 
decUserRef() const91 bool ObjectBase::decUserRef() const
92 {
93     rsAssert(mUserRefCount > 0);
94     mUserRefCount --;
95     //dumpObj("decUserRef");
96     return checkDelete();
97 }
98 
zeroUserRef() const99 bool ObjectBase::zeroUserRef() const
100 {
101     mUserRefCount = 0;
102     //dumpObj("zeroUserRef");
103     return checkDelete();
104 }
105 
decSysRef() const106 bool ObjectBase::decSysRef() const
107 {
108     rsAssert(mSysRefCount > 0);
109     mSysRefCount --;
110     //dumpObj("decSysRef");
111     return checkDelete();
112 }
113 
setName(const char * name)114 void ObjectBase::setName(const char *name)
115 {
116     setName(name, strlen(name));
117 }
118 
setName(const char * name,uint32_t len)119 void ObjectBase::setName(const char *name, uint32_t len)
120 {
121     delete mName;
122     mName = NULL;
123     if (name) {
124         mName = new char[len + 1];
125         memcpy(mName, name, len);
126         mName[len] = 0;
127     }
128 }
129 
add() const130 void ObjectBase::add() const
131 {
132     rsAssert(!mNext);
133     rsAssert(!mPrev);
134     //LOGV("calling add  rsc %p", mRSC);
135     mNext = mRSC->mObjHead;
136     if (mRSC->mObjHead) {
137         mRSC->mObjHead->mPrev = this;
138     }
139     mRSC->mObjHead = this;
140 }
141 
remove() const142 void ObjectBase::remove() const
143 {
144     //LOGV("calling remove  rsc %p", mRSC);
145     if (!mRSC) {
146         rsAssert(!mPrev);
147         rsAssert(!mNext);
148         return;
149     }
150     if (mRSC->mObjHead == this) {
151         mRSC->mObjHead = mNext;
152     }
153     if (mPrev) {
154         mPrev->mNext = mNext;
155     }
156     if (mNext) {
157         mNext->mPrev = mPrev;
158     }
159     mPrev = NULL;
160     mNext = NULL;
161 }
162 
zeroAllUserRef(Context * rsc)163 void ObjectBase::zeroAllUserRef(Context *rsc)
164 {
165     if (rsc->props.mLogObjects) {
166         LOGV("Forcing release of all outstanding user refs.");
167     }
168 
169     // This operation can be slow, only to be called during context cleanup.
170     const ObjectBase * o = rsc->mObjHead;
171     while (o) {
172         //LOGE("o %p", o);
173         if (o->zeroUserRef()) {
174             // deleted the object and possibly others, restart from head.
175             o = rsc->mObjHead;
176             //LOGE("o head %p", o);
177         } else {
178             o = o->mNext;
179             //LOGE("o next %p", o);
180         }
181     }
182 
183     if (rsc->props.mLogObjects) {
184         LOGV("Objects remaining.");
185         dumpAll(rsc);
186     }
187 }
188 
dumpAll(Context * rsc)189 void ObjectBase::dumpAll(Context *rsc)
190 {
191     LOGV("Dumping all objects");
192     const ObjectBase * o = rsc->mObjHead;
193     while (o) {
194         LOGV(" Object %p", o);
195         o->dumpLOGV("  ");
196         o = o->mNext;
197     }
198 }
199 
200