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1 /*
2  * Copyright (C) 2015 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 <pthread.h>
18 
19 #include "Action.h"
20 #include "Thread.h"
21 
Thread()22 Thread::Thread() {
23   pthread_cond_init(&cond_, nullptr);
24 }
25 
~Thread()26 Thread::~Thread() {
27   pthread_cond_destroy(&cond_);
28 }
29 
WaitForReady()30 void Thread::WaitForReady() {
31   pthread_mutex_lock(&mutex_);
32   while (pending_) {
33     pthread_cond_wait(&cond_, &mutex_);
34   }
35   pthread_mutex_unlock(&mutex_);
36 }
37 
WaitForPending()38 void Thread::WaitForPending() {
39   pthread_mutex_lock(&mutex_);
40   while (!pending_) {
41     pthread_cond_wait(&cond_, &mutex_);
42   }
43   pthread_mutex_unlock(&mutex_);
44 }
45 
SetPending()46 void Thread::SetPending() {
47   pthread_mutex_lock(&mutex_);
48   pending_ = true;
49   pthread_mutex_unlock(&mutex_);
50   pthread_cond_signal(&cond_);
51 }
52 
ClearPending()53 void Thread::ClearPending() {
54   pthread_mutex_lock(&mutex_);
55   pending_ = false;
56   pthread_mutex_unlock(&mutex_);
57   pthread_cond_signal(&cond_);
58 }
59 
CreateAction(uintptr_t key_pointer,const char * type,const char * line)60 Action* Thread::CreateAction(uintptr_t key_pointer, const char* type, const char* line) {
61   return Action::CreateAction(key_pointer, type, line, action_memory_);
62 }
63