1 /*
2 * Copyright (C) 2010 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 #define LOG_TAG "ALooper"
18 #include <utils/Log.h>
19
20 #include <android/looper.h>
21 #include <utils/Looper.h>
22 #include <binder/IPCThreadState.h>
23
24 using android::Looper;
25 using android::sp;
26 using android::IPCThreadState;
27
ALooper_to_Looper(ALooper * alooper)28 static inline Looper* ALooper_to_Looper(ALooper* alooper) {
29 return reinterpret_cast<Looper*>(alooper);
30 }
31
Looper_to_ALooper(Looper * looper)32 static inline ALooper* Looper_to_ALooper(Looper* looper) {
33 return reinterpret_cast<ALooper*>(looper);
34 }
35
ALooper_forThread()36 ALooper* ALooper_forThread() {
37 return Looper_to_ALooper(Looper::getForThread().get());
38 }
39
ALooper_prepare(int opts)40 ALooper* ALooper_prepare(int opts) {
41 return Looper_to_ALooper(Looper::prepare(opts).get());
42 }
43
ALooper_acquire(ALooper * looper)44 void ALooper_acquire(ALooper* looper) {
45 ALooper_to_Looper(looper)->incStrong((void*)ALooper_acquire);
46 }
47
ALooper_release(ALooper * looper)48 void ALooper_release(ALooper* looper) {
49 ALooper_to_Looper(looper)->decStrong((void*)ALooper_acquire);
50 }
51
ALooper_pollOnce(int timeoutMillis,int * outFd,int * outEvents,void ** outData)52 int ALooper_pollOnce(int timeoutMillis, int* outFd, int* outEvents, void** outData) {
53 sp<Looper> looper = Looper::getForThread();
54 if (looper == NULL) {
55 ALOGE("ALooper_pollOnce: No looper for this thread!");
56 return ALOOPER_POLL_ERROR;
57 }
58
59 IPCThreadState::self()->flushCommands();
60 return looper->pollOnce(timeoutMillis, outFd, outEvents, outData);
61 }
62
ALooper_pollAll(int timeoutMillis,int * outFd,int * outEvents,void ** outData)63 int ALooper_pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outData) {
64 sp<Looper> looper = Looper::getForThread();
65 if (looper == NULL) {
66 ALOGE("ALooper_pollAll: No looper for this thread!");
67 return ALOOPER_POLL_ERROR;
68 }
69
70 IPCThreadState::self()->flushCommands();
71 return looper->pollAll(timeoutMillis, outFd, outEvents, outData);
72 }
73
ALooper_wake(ALooper * looper)74 void ALooper_wake(ALooper* looper) {
75 ALooper_to_Looper(looper)->wake();
76 }
77
ALooper_addFd(ALooper * looper,int fd,int ident,int events,ALooper_callbackFunc callback,void * data)78 int ALooper_addFd(ALooper* looper, int fd, int ident, int events,
79 ALooper_callbackFunc callback, void* data) {
80 return ALooper_to_Looper(looper)->addFd(fd, ident, events, callback, data);
81 }
82
ALooper_removeFd(ALooper * looper,int fd)83 int ALooper_removeFd(ALooper* looper, int fd) {
84 return ALooper_to_Looper(looper)->removeFd(fd);
85 }
86