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 <unistd.h> 18 #include <fcntl.h> 19 20 #include <binder/IActivityManager.h> 21 22 #include <binder/Parcel.h> 23 24 namespace android { 25 26 // ------------------------------------------------------------------------------------ 27 28 class BpActivityManager : public BpInterface<IActivityManager> 29 { 30 public: BpActivityManager(const sp<IBinder> & impl)31 explicit BpActivityManager(const sp<IBinder>& impl) 32 : BpInterface<IActivityManager>(impl) 33 { 34 } 35 openContentUri(const String16 & stringUri)36 virtual int openContentUri(const String16& stringUri) 37 { 38 Parcel data, reply; 39 data.writeInterfaceToken(IActivityManager::getInterfaceDescriptor()); 40 data.writeString16(stringUri); 41 status_t ret = remote()->transact(OPEN_CONTENT_URI_TRANSACTION, data, & reply); 42 int fd = -1; 43 if (ret == NO_ERROR) { 44 int32_t exceptionCode = reply.readExceptionCode(); 45 if (!exceptionCode) { 46 // Success is indicated here by a nonzero int followed by the fd; 47 // failure by a zero int with no data following. 48 if (reply.readInt32() != 0) { 49 fd = fcntl(reply.readParcelFileDescriptor(), F_DUPFD_CLOEXEC, 0); 50 } 51 } else { 52 // An exception was thrown back; fall through to return failure 53 ALOGD("openContentUri(%s) caught exception %d\n", 54 String8(stringUri).string(), exceptionCode); 55 } 56 } 57 return fd; 58 } 59 }; 60 61 // ------------------------------------------------------------------------------------ 62 63 IMPLEMENT_META_INTERFACE(ActivityManager, "android.app.IActivityManager"); 64 65 }; // namespace android 66