IActivityManager.cpp revision 6ef26f129ce86b50d12ff4e46fae566baf54336d 
1/*
2 * Copyright (C) 2016 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 <binder/IActivityManager.h>
18
19#include <binder/Parcel.h>
20
21namespace android {
22
23// ------------------------------------------------------------------------------------
24
25class BpActivityManager : public BpInterface<IActivityManager>
26{
27public:
28    explicit BpActivityManager(const sp<IBinder>& impl)
29        : BpInterface<IActivityManager>(impl)
30    {
31    }
32
33    virtual int openContentUri(const String16& stringUri)
34    {
35        Parcel data, reply;
36        data.writeString16(stringUri);
37        status_t ret = remote()->transact(OPEN_CONTENT_URI_TRANSACTION, data, & reply);
38        int fd = -1;
39        if (ret == NO_ERROR) {
40            int32_t exceptionCode = reply.readExceptionCode();
41            if (!exceptionCode) {
42                // Success is indicated here by a nonzero int followed by the fd;
43                // failure by a zero int with no data following.
44                if (reply.readInt32() != 0) {
45                    fd = dup(reply.readParcelFileDescriptor());
46                }
47            } else {
48                // An exception was thrown back; fall through to return failure
49                ALOGD("openContentUri(%s) caught exception %d\n",
50                        String8(stringUri).string(), exceptionCode);
51            }
52        }
53        return fd;
54    }
55};
56
57// ------------------------------------------------------------------------------------
58
59IMPLEMENT_META_INTERFACE(ActivityManager, "android.app.IActivityManager");
60
61}; // namespace android
62