1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
/*
* 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.
*/
#include "rsObjectBase.h"
#include "rsContext.h"
using namespace android;
using namespace android::renderscript;
pthread_mutex_t ObjectBase::gObjectInitMutex = PTHREAD_MUTEX_INITIALIZER;
ObjectBase::ObjectBase(Context *rsc) {
mUserRefCount = 0;
mSysRefCount = 0;
mRSC = rsc;
mNext = NULL;
mPrev = NULL;
#if RS_OBJECT_DEBUG
mStack.update(2);
#endif
rsAssert(rsc);
add();
//LOGV("ObjectBase %p con", this);
}
ObjectBase::~ObjectBase() {
//LOGV("~ObjectBase %p ref %i,%i", this, mUserRefCount, mSysRefCount);
#if RS_OBJECT_DEBUG
mStack.dump();
#endif
if (mPrev || mNext) {
// While the normal practice is to call remove before we call
// delete. Its possible for objects without a re-use list
// for avoiding duplication to be created on the stack. In those
// cases we need to remove ourself here.
asyncLock();
remove();
asyncUnlock();
}
rsAssert(!mUserRefCount);
rsAssert(!mSysRefCount);
}
void ObjectBase::dumpLOGV(const char *op) const {
if (mName.size()) {
LOGV("%s RSobj %p, name %s, refs %i,%i links %p,%p,%p",
op, this, mName.string(), mUserRefCount, mSysRefCount, mNext, mPrev, mRSC);
} else {
LOGV("%s RSobj %p, no-name, refs %i,%i links %p,%p,%p",
op, this, mUserRefCount, mSysRefCount, mNext, mPrev, mRSC);
}
}
void ObjectBase::incUserRef() const {
android_atomic_inc(&mUserRefCount);
//LOGV("ObjectBase %p incU ref %i, %i", this, mUserRefCount, mSysRefCount);
}
void ObjectBase::incSysRef() const {
android_atomic_inc(&mSysRefCount);
//LOGV("ObjectBase %p incS ref %i, %i", this, mUserRefCount, mSysRefCount);
}
void ObjectBase::preDestroy() const {
}
bool ObjectBase::checkDelete(const ObjectBase *ref) {
if (!ref) {
return false;
}
asyncLock();
// This lock protects us against the non-RS threads changing
// the ref counts. At this point we should be the only thread
// working on them.
if (ref->mUserRefCount || ref->mSysRefCount) {
asyncUnlock();
return false;
}
ref->remove();
// At this point we can unlock because there should be no possible way
// for another thread to reference this object.
ref->preDestroy();
asyncUnlock();
delete ref;
return true;
}
bool ObjectBase::decUserRef() const {
rsAssert(mUserRefCount > 0);
#if RS_OBJECT_DEBUG
LOGV("ObjectBase %p decU ref %i, %i", this, mUserRefCount, mSysRefCount);
if (mUserRefCount <= 0) {
mStack.dump();
}
#endif
if ((android_atomic_dec(&mUserRefCount) <= 1) &&
(android_atomic_acquire_load(&mSysRefCount) <= 0)) {
return checkDelete(this);
}
return false;
}
bool ObjectBase::zeroUserRef() const {
//LOGV("ObjectBase %p zeroU ref %i, %i", this, mUserRefCount, mSysRefCount);
android_atomic_acquire_store(0, &mUserRefCount);
if (android_atomic_acquire_load(&mSysRefCount) <= 0) {
return checkDelete(this);
}
return false;
}
bool ObjectBase::decSysRef() const {
//LOGV("ObjectBase %p decS ref %i, %i", this, mUserRefCount, mSysRefCount);
rsAssert(mSysRefCount > 0);
if ((android_atomic_dec(&mSysRefCount) <= 1) &&
(android_atomic_acquire_load(&mUserRefCount) <= 0)) {
return checkDelete(this);
}
return false;
}
void ObjectBase::setName(const char *name) {
mName.setTo(name);
}
void ObjectBase::setName(const char *name, uint32_t len) {
mName.setTo(name, len);
}
void ObjectBase::asyncLock() {
pthread_mutex_lock(&gObjectInitMutex);
}
void ObjectBase::asyncUnlock() {
pthread_mutex_unlock(&gObjectInitMutex);
}
void ObjectBase::add() const {
asyncLock();
rsAssert(!mNext);
rsAssert(!mPrev);
//LOGV("calling add rsc %p", mRSC);
mNext = mRSC->mObjHead;
if (mRSC->mObjHead) {
mRSC->mObjHead->mPrev = this;
}
mRSC->mObjHead = this;
asyncUnlock();
}
void ObjectBase::remove() const {
//LOGV("calling remove rsc %p", mRSC);
if (!mRSC) {
rsAssert(!mPrev);
rsAssert(!mNext);
return;
}
if (mRSC->mObjHead == this) {
mRSC->mObjHead = mNext;
}
if (mPrev) {
mPrev->mNext = mNext;
}
if (mNext) {
mNext->mPrev = mPrev;
}
mPrev = NULL;
mNext = NULL;
}
void ObjectBase::zeroAllUserRef(Context *rsc) {
if (rsc->props.mLogObjects) {
LOGV("Forcing release of all outstanding user refs.");
}
// This operation can be slow, only to be called during context cleanup.
const ObjectBase * o = rsc->mObjHead;
while (o) {
//LOGE("o %p", o);
if (o->zeroUserRef()) {
// deleted the object and possibly others, restart from head.
o = rsc->mObjHead;
//LOGE("o head %p", o);
} else {
o = o->mNext;
//LOGE("o next %p", o);
}
}
if (rsc->props.mLogObjects) {
LOGV("Objects remaining.");
dumpAll(rsc);
}
}
void ObjectBase::dumpAll(Context *rsc) {
asyncLock();
LOGV("Dumping all objects");
const ObjectBase * o = rsc->mObjHead;
while (o) {
LOGV(" Object %p", o);
o->dumpLOGV(" ");
o = o->mNext;
}
asyncUnlock();
}
bool ObjectBase::isValid(const Context *rsc, const ObjectBase *obj) {
asyncLock();
const ObjectBase * o = rsc->mObjHead;
while (o) {
if (o == obj) {
asyncUnlock();
return true;
}
o = o->mNext;
}
asyncUnlock();
return false;
}
|
