looper.cpp revision 4fe6c3e51be77e35f40872cdbca6c80f8f8b7ecb 
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
23using android::Looper;
24using android::sp;
25
26ALooper* ALooper_forThread() {
27    return Looper::getForThread().get();
28}
29
30ALooper* ALooper_prepare(int opts) {
31    return Looper::prepare(opts).get();
32}
33
34void ALooper_acquire(ALooper* looper) {
35    static_cast<Looper*>(looper)->incStrong((void*)ALooper_acquire);
36}
37
38void ALooper_release(ALooper* looper) {
39    static_cast<Looper*>(looper)->decStrong((void*)ALooper_acquire);
40}
41
42int ALooper_pollOnce(int timeoutMillis, int* outFd, int* outEvents, void** outData) {
43    sp<Looper> looper = Looper::getForThread();
44    if (looper == NULL) {
45        LOGE("ALooper_pollOnce: No looper for this thread!");
46        return ALOOPER_POLL_ERROR;
47    }
48
49    return looper->pollOnce(timeoutMillis, outFd, outEvents, outData);
50}
51
52int ALooper_pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outData) {
53    sp<Looper> looper = Looper::getForThread();
54    if (looper == NULL) {
55        LOGE("ALooper_pollAll: No looper for this thread!");
56        return ALOOPER_POLL_ERROR;
57    }
58
59    return looper->pollAll(timeoutMillis, outFd, outEvents, outData);
60}
61
62void ALooper_wake(ALooper* looper) {
63    static_cast<Looper*>(looper)->wake();
64}
65
66int ALooper_addFd(ALooper* looper, int fd, int ident, int events,
67        ALooper_callbackFunc callback, void* data) {
68    return static_cast<Looper*>(looper)->addFd(fd, ident, events, callback, data);
69}
70
71int ALooper_removeFd(ALooper* looper, int fd) {
72    return static_cast<Looper*>(looper)->removeFd(fd);
73}
74