f20c329a8a
make all binder call to power manager service one way so that they don't block calling thread and are processed in the incoming order. Bug: 16408906. Change-Id: I94034df7f0a36d967e085b53fdc37fff7b44757b
110 lines
3.8 KiB
C++
110 lines
3.8 KiB
C++
/*
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* Copyright (C) 2011 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 "IPowerManager"
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//#define LOG_NDEBUG 0
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#include <utils/Log.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/Parcel.h>
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#include <powermanager/IPowerManager.h>
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namespace android {
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// must be kept in sync with IPowerManager.aidl
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enum {
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ACQUIRE_WAKE_LOCK = IBinder::FIRST_CALL_TRANSACTION,
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ACQUIRE_WAKE_LOCK_UID = IBinder::FIRST_CALL_TRANSACTION + 1,
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RELEASE_WAKE_LOCK = IBinder::FIRST_CALL_TRANSACTION + 2,
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UPDATE_WAKE_LOCK_UIDS = IBinder::FIRST_CALL_TRANSACTION + 3,
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POWER_HINT = IBinder::FIRST_CALL_TRANSACTION + 4,
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};
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class BpPowerManager : public BpInterface<IPowerManager>
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{
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public:
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BpPowerManager(const sp<IBinder>& impl)
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: BpInterface<IPowerManager>(impl)
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{
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}
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virtual status_t acquireWakeLock(int flags, const sp<IBinder>& lock, const String16& tag,
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const String16& packageName)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
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data.writeStrongBinder(lock);
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data.writeInt32(flags);
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data.writeString16(tag);
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data.writeString16(packageName);
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data.writeInt32(0); // no WorkSource
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data.writeString16(NULL, 0); // no history tag
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return remote()->transact(ACQUIRE_WAKE_LOCK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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virtual status_t acquireWakeLockWithUid(int flags, const sp<IBinder>& lock, const String16& tag,
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const String16& packageName, int uid)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
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data.writeStrongBinder(lock);
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data.writeInt32(flags);
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data.writeString16(tag);
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data.writeString16(packageName);
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data.writeInt32(uid); // uid to blame for the work
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return remote()->transact(ACQUIRE_WAKE_LOCK_UID, data, &reply, IBinder::FLAG_ONEWAY);
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}
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virtual status_t releaseWakeLock(const sp<IBinder>& lock, int flags)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
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data.writeStrongBinder(lock);
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data.writeInt32(flags);
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return remote()->transact(RELEASE_WAKE_LOCK, data, &reply, IBinder::FLAG_ONEWAY);
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}
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virtual status_t updateWakeLockUids(const sp<IBinder>& lock, int len, const int *uids) {
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Parcel data, reply;
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data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
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data.writeStrongBinder(lock);
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data.writeInt32Array(len, uids);
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// We don't really care too much if this succeeds (there's nothing we can do if it doesn't)
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// but it should return ASAP
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return remote()->transact(UPDATE_WAKE_LOCK_UIDS, data, &reply, IBinder::FLAG_ONEWAY);
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}
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virtual status_t powerHint(int hintId, int param)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
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data.writeInt32(hintId);
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data.writeInt32(param);
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return remote()->transact(POWER_HINT, data, &reply, IBinder::FLAG_ONEWAY);
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}
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};
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IMPLEMENT_META_INTERFACE(PowerManager, "android.os.IPowerManager");
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// ----------------------------------------------------------------------------
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}; // namespace android
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