1/* 2 * Copyright (C) 2012 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 "ISchedulingPolicyService" 18//#define LOG_NDEBUG 0 19 20#include <binder/Parcel.h> 21#include "ISchedulingPolicyService.h" 22 23namespace android { 24 25// Keep in sync with frameworks/base/core/java/android/os/ISchedulingPolicyService.aidl 26enum { 27 REQUEST_PRIORITY_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION, 28}; 29 30// ---------------------------------------------------------------------- 31 32class BpSchedulingPolicyService : public BpInterface<ISchedulingPolicyService> 33{ 34public: 35 explicit BpSchedulingPolicyService(const sp<IBinder>& impl) 36 : BpInterface<ISchedulingPolicyService>(impl) 37 { 38 } 39 40 virtual int requestPriority(int32_t pid, int32_t tid, 41 int32_t prio, bool isForApp, bool asynchronous) 42 { 43 Parcel data, reply; 44 data.writeInterfaceToken(ISchedulingPolicyService::getInterfaceDescriptor()); 45 data.writeInt32(pid); 46 data.writeInt32(tid); 47 data.writeInt32(prio); 48 data.writeBool(isForApp); 49 uint32_t flags = asynchronous ? IBinder::FLAG_ONEWAY : 0; 50 status_t status = remote()->transact(REQUEST_PRIORITY_TRANSACTION, data, &reply, flags); 51 if (status != NO_ERROR) { 52 return status; 53 } 54 if (asynchronous) { 55 return NO_ERROR; 56 } 57 // fail on exception: force binder reconnection 58 if (reply.readExceptionCode() != 0) { 59 return DEAD_OBJECT; 60 } 61 return reply.readInt32(); 62 } 63}; 64 65IMPLEMENT_META_INTERFACE(SchedulingPolicyService, "android.os.ISchedulingPolicyService"); 66 67// ---------------------------------------------------------------------- 68 69status_t BnSchedulingPolicyService::onTransact( 70 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 71{ 72 switch (code) { 73 case REQUEST_PRIORITY_TRANSACTION: 74 // Not reached 75 return NO_ERROR; 76 break; 77 default: 78 return BBinder::onTransact(code, data, reply, flags); 79 } 80} 81 82} // namespace android 83