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
24using android::Looper;
25using android::sp;
26using android::IPCThreadState;
27
28ALooper* ALooper_forThread() {
29    return Looper::getForThread().get();
30}
31
32ALooper* ALooper_prepare(int opts) {
33    return Looper::prepare(opts).get();
34}
35
36void ALooper_acquire(ALooper* looper) {
37    static_cast<Looper*>(looper)->incStrong((void*)ALooper_acquire);
38}
39
40void ALooper_release(ALooper* looper) {
41    static_cast<Looper*>(looper)->decStrong((void*)ALooper_acquire);
42}
43
44int ALooper_pollOnce(int timeoutMillis, int* outFd, int* outEvents, void** outData) {
45    sp<Looper> looper = Looper::getForThread();
46    if (looper == NULL) {
47        ALOGE("ALooper_pollOnce: No looper for this thread!");
48        return ALOOPER_POLL_ERROR;
49    }
50
51    IPCThreadState::self()->flushCommands();
52    return looper->pollOnce(timeoutMillis, outFd, outEvents, outData);
53}
54
55int ALooper_pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outData) {
56    sp<Looper> looper = Looper::getForThread();
57    if (looper == NULL) {
58        ALOGE("ALooper_pollAll: No looper for this thread!");
59        return ALOOPER_POLL_ERROR;
60    }
61
62    IPCThreadState::self()->flushCommands();
63    return looper->pollAll(timeoutMillis, outFd, outEvents, outData);
64}
65
66void ALooper_wake(ALooper* looper) {
67    static_cast<Looper*>(looper)->wake();
68}
69
70int ALooper_addFd(ALooper* looper, int fd, int ident, int events,
71        ALooper_callbackFunc callback, void* data) {
72    return static_cast<Looper*>(looper)->addFd(fd, ident, events, callback, data);
73}
74
75int ALooper_removeFd(ALooper* looper, int fd) {
76    return static_cast<Looper*>(looper)->removeFd(fd);
77}
78