IDisplayEventConnection.cpp revision d0566bc26fcf6ca396118701fa11900b627f2c09 
1/*
2 * Copyright (C) 2011 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#include <stdint.h>
18#include <sys/types.h>
19
20#include <utils/Errors.h>
21#include <utils/RefBase.h>
22#include <utils/Timers.h>
23
24#include <binder/Parcel.h>
25#include <binder/IInterface.h>
26
27#include <gui/IDisplayEventConnection.h>
28#include <gui/BitTube.h>
29
30namespace android {
31// ----------------------------------------------------------------------------
32
33enum {
34    GET_DATA_CHANNEL = IBinder::FIRST_CALL_TRANSACTION,
35};
36
37class BpDisplayEventConnection : public BpInterface<IDisplayEventConnection>
38{
39public:
40    BpDisplayEventConnection(const sp<IBinder>& impl)
41        : BpInterface<IDisplayEventConnection>(impl)
42    {
43    }
44
45    virtual sp<BitTube> getDataChannel() const
46    {
47        Parcel data, reply;
48        data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
49        remote()->transact(GET_DATA_CHANNEL, data, &reply);
50        return new BitTube(reply);
51    }
52};
53
54IMPLEMENT_META_INTERFACE(DisplayEventConnection, "android.gui.DisplayEventConnection");
55
56// ----------------------------------------------------------------------------
57
58status_t BnDisplayEventConnection::onTransact(
59    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
60{
61    switch(code) {
62        case GET_DATA_CHANNEL: {
63            CHECK_INTERFACE(IDisplayEventConnection, data, reply);
64            sp<BitTube> channel(getDataChannel());
65            channel->writeToParcel(reply);
66            return NO_ERROR;
67        } break;
68    }
69    return BBinder::onTransact(code, data, reply, flags);
70}
71
72// ----------------------------------------------------------------------------
73}; // namespace android
74