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
23 namespace android {
24
25 // Keep in sync with frameworks/base/core/java/android/os/ISchedulingPolicyService.aidl
26 enum {
27 REQUEST_PRIORITY_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
28 REQUEST_CPUSET_BOOST,
29 };
30
31 // ----------------------------------------------------------------------
32
33 class BpSchedulingPolicyService : public BpInterface<ISchedulingPolicyService>
34 {
35 public:
BpSchedulingPolicyService(const sp<IBinder> & impl)36 explicit BpSchedulingPolicyService(const sp<IBinder>& impl)
37 : BpInterface<ISchedulingPolicyService>(impl)
38 {
39 }
40
requestPriority(int32_t pid,int32_t tid,int32_t prio,bool isForApp,bool asynchronous)41 virtual int requestPriority(int32_t pid, int32_t tid,
42 int32_t prio, bool isForApp, bool asynchronous)
43 {
44 Parcel data, reply;
45 data.writeInterfaceToken(ISchedulingPolicyService::getInterfaceDescriptor());
46 data.writeInt32(pid);
47 data.writeInt32(tid);
48 data.writeInt32(prio);
49 data.writeBool(isForApp);
50 uint32_t flags = asynchronous ? IBinder::FLAG_ONEWAY : 0;
51 status_t status = remote()->transact(REQUEST_PRIORITY_TRANSACTION, data, &reply, flags);
52 if (status != NO_ERROR) {
53 return status;
54 }
55 if (asynchronous) {
56 return NO_ERROR;
57 }
58 // fail on exception: force binder reconnection
59 if (reply.readExceptionCode() != 0) {
60 return DEAD_OBJECT;
61 }
62 return reply.readInt32();
63 }
64
requestCpusetBoost(bool enable,const sp<IInterface> & client)65 virtual int requestCpusetBoost(bool enable, const sp<IInterface>& client)
66 {
67 Parcel data, reply;
68 data.writeInterfaceToken(ISchedulingPolicyService::getInterfaceDescriptor());
69 data.writeInt32(enable);
70 data.writeStrongBinder(IInterface::asBinder(client));
71 status_t status = remote()->transact(REQUEST_CPUSET_BOOST, data, &reply, 0);
72 if (status != NO_ERROR) {
73 return status;
74 }
75 // fail on exception: force binder reconnection
76 if (reply.readExceptionCode() != 0) {
77 return DEAD_OBJECT;
78 }
79 return reply.readInt32();
80 }
81 };
82
83 IMPLEMENT_META_INTERFACE(SchedulingPolicyService, "android.os.ISchedulingPolicyService");
84
85 // ----------------------------------------------------------------------
86
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)87 status_t BnSchedulingPolicyService::onTransact(
88 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
89 {
90 switch (code) {
91 case REQUEST_PRIORITY_TRANSACTION:
92 case REQUEST_CPUSET_BOOST:
93 // Not reached
94 return NO_ERROR;
95 break;
96 default:
97 return BBinder::onTransact(code, data, reply, flags);
98 }
99 }
100
101 } // namespace android
102