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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.
*/
#pragma once
#include <stdint.h>
#include <utils/Errors.h>
#include <utils/String16.h>
#include <binder/IServiceManager.h>
#include <binder/IPCThreadState.h>
#include <binder/ProcessState.h>
#include <binder/IServiceManager.h>
// WARNING: deprecated - DO NOT USE - prefer to setup service directly.
//
// This class embellishes a class with a few static methods which can be used in
// limited circumstances (when one service needs to be registered and
// published). However, this is an anti-pattern:
// - these methods are aliases of existing methods, and as such, represent an
// incremental amount of information required to understand the system but
// which does not actually save in terms of lines of code. For instance, users
// of this class should be surprised to know that this will start up to 16
// threads in the binder threadpool.
// - the template instantiation costs need to be paid, even though everything
// done here is generic.
// - the getServiceName API here is undocumented and non-local (for instance,
// this unnecessarily assumes a single service type will only be instantiated
// once with no arguments).
//
// So, DO NOT USE.
// ---------------------------------------------------------------------------
namespace android {
template<typename SERVICE>
class BinderService
{
public:
static status_t publish(bool allowIsolated = false,
int dumpFlags = IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT) {
sp<IServiceManager> sm(defaultServiceManager());
return sm->addService(String16(SERVICE::getServiceName()), new SERVICE(), allowIsolated,
dumpFlags);
}
static void publishAndJoinThreadPool(
bool allowIsolated = false,
int dumpFlags = IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT) {
publish(allowIsolated, dumpFlags);
joinThreadPool();
}
static void instantiate() { publish(); }
static status_t shutdown() { return NO_ERROR; }
private:
static void joinThreadPool() {
sp<ProcessState> ps(ProcessState::self());
ps->startThreadPool();
ps->giveThreadPoolName();
IPCThreadState::self()->joinThreadPool();
}
};
} // namespace android
// ---------------------------------------------------------------------------
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