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/*
* Copyright (C) 2010 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.
*/
#define LOG_TAG "ALooper"
#include <utils/Log.h>
#include <android/looper.h>
#include <utils/PollLoop.h>
using android::PollLoop;
using android::sp;
ALooper* ALooper_forThread() {
return PollLoop::getForThread().get();
}
ALooper* ALooper_prepare(int32_t opts) {
bool allowFds = (opts&ALOOPER_PREPARE_ALLOW_NON_CALLBACKS) != 0;
sp<PollLoop> loop = PollLoop::getForThread();
if (loop == NULL) {
loop = new PollLoop(allowFds);
PollLoop::setForThread(loop);
}
if (loop->getAllowNonCallbacks() != allowFds) {
LOGW("ALooper_prepare again with different ALOOPER_PREPARE_ALLOW_NON_CALLBACKS");
}
return loop.get();
}
int32_t ALooper_pollOnce(int timeoutMillis, int* outEvents, void** outData) {
sp<PollLoop> loop = PollLoop::getForThread();
if (loop == NULL) {
LOGW("ALooper_pollOnce: No looper for this thread!");
return -1;
}
return loop->pollOnce(timeoutMillis, outEvents, outData);
}
int32_t ALooper_pollAll(int timeoutMillis, int* outEvents, void** outData) {
sp<PollLoop> loop = PollLoop::getForThread();
if (loop == NULL) {
LOGW("ALooper_pollOnce: No looper for this thread!");
return -1;
}
int32_t result;
while ((result = loop->pollOnce(timeoutMillis, outEvents, outData)) == ALOOPER_POLL_CALLBACK) {
;
}
return result;
}
void ALooper_acquire(ALooper* looper) {
static_cast<PollLoop*>(looper)->incStrong((void*)ALooper_acquire);
}
void ALooper_release(ALooper* looper) {
static_cast<PollLoop*>(looper)->decStrong((void*)ALooper_acquire);
}
void ALooper_addFd(ALooper* looper, int fd, int events,
ALooper_callbackFunc* callback, void* data) {
static_cast<PollLoop*>(looper)->setLooperCallback(fd, events, callback, data);
}
int32_t ALooper_removeFd(ALooper* looper, int fd) {
return static_cast<PollLoop*>(looper)->removeCallback(fd) ? 1 : 0;
}
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