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90 lines
2.7 KiB
90 lines
2.7 KiB
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "SchedulingPolicyService"
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//#define LOG_NDEBUG 0
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#include <binder/IServiceManager.h>
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#include <utils/Mutex.h>
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#include "ISchedulingPolicyService.h"
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#include "mediautils/SchedulingPolicyService.h"
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namespace android {
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static sp<ISchedulingPolicyService> sSchedulingPolicyService;
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static const String16 _scheduling_policy("scheduling_policy");
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static Mutex sMutex;
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int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool isForApp, bool asynchronous)
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{
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// FIXME merge duplicated code related to service lookup, caching, and error recovery
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int ret;
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for (;;) {
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sMutex.lock();
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sp<ISchedulingPolicyService> sps = sSchedulingPolicyService;
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sMutex.unlock();
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if (sps == 0) {
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sp<IBinder> binder = defaultServiceManager()->checkService(_scheduling_policy);
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if (binder == 0) {
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sleep(1);
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continue;
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}
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sps = interface_cast<ISchedulingPolicyService>(binder);
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sMutex.lock();
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sSchedulingPolicyService = sps;
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sMutex.unlock();
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}
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ret = sps->requestPriority(pid, tid, prio, isForApp, asynchronous);
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if (ret != DEAD_OBJECT) {
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break;
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}
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ALOGW("SchedulingPolicyService died");
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sMutex.lock();
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sSchedulingPolicyService.clear();
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sMutex.unlock();
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}
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return ret;
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}
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int requestCpusetBoost(bool enable, const sp<IBinder> &client)
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{
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int ret;
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sMutex.lock();
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sp<ISchedulingPolicyService> sps = sSchedulingPolicyService;
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sMutex.unlock();
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if (sps == 0) {
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sp<IBinder> binder = defaultServiceManager()->checkService(_scheduling_policy);
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if (binder == 0) {
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return DEAD_OBJECT;
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}
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sps = interface_cast<ISchedulingPolicyService>(binder);
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sMutex.lock();
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sSchedulingPolicyService = sps;
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sMutex.unlock();
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}
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ret = sps->requestCpusetBoost(enable, client);
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if (ret != DEAD_OBJECT) {
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return ret;
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}
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ALOGW("SchedulingPolicyService died");
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sMutex.lock();
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sSchedulingPolicyService.clear();
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sMutex.unlock();
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return ret;
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}
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} // namespace android
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