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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_NDEBUG 0
#define LOG_TAG "ALooperRoster"
#include <utils/Log.h>
#include "ALooperRoster.h"
#include "ADebug.h"
#include "AHandler.h"
#include "AMessage.h"
namespace android {
ALooperRoster::ALooperRoster()
: mNextHandlerID(1) {
}
ALooper::handler_id ALooperRoster::registerHandler(
const sp<ALooper> looper, const sp<AHandler> &handler) {
Mutex::Autolock autoLock(mLock);
if (handler->id() != 0) {
CHECK(!"A handler must only be registered once.");
return INVALID_OPERATION;
}
HandlerInfo info;
info.mLooper = looper;
info.mHandler = handler;
ALooper::handler_id handlerID = mNextHandlerID++;
mHandlers.add(handlerID, info);
handler->setID(handlerID);
return handlerID;
}
void ALooperRoster::unregisterHandler(ALooper::handler_id handlerID) {
Mutex::Autolock autoLock(mLock);
ssize_t index = mHandlers.indexOfKey(handlerID);
CHECK(index >= 0);
const HandlerInfo &info = mHandlers.valueAt(index);
info.mHandler->setID(0);
mHandlers.removeItemsAt(index);
}
void ALooperRoster::postMessage(
const sp<AMessage> &msg, int64_t delayUs) {
Mutex::Autolock autoLock(mLock);
ssize_t index = mHandlers.indexOfKey(msg->target());
if (index < 0) {
LOG(WARNING) << "failed to post message. Target handler not registered.";
return;
}
const HandlerInfo &info = mHandlers.valueAt(index);
info.mLooper->post(msg, delayUs);
}
void ALooperRoster::deliverMessage(const sp<AMessage> &msg) {
sp<AHandler> handler;
{
Mutex::Autolock autoLock(mLock);
ssize_t index = mHandlers.indexOfKey(msg->target());
if (index < 0) {
LOG(WARNING) << "failed to deliver message. Target handler not registered.";
return;
}
const HandlerInfo &info = mHandlers.valueAt(index);
handler = info.mHandler;
}
handler->onMessageReceived(msg);
}
} // namespace android
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