1 /* 2 * Copyright (C) 2010 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 "ABuffer.h" 18 19 #include "ADebug.h" 20 #include "ALooper.h" 21 #include "AMessage.h" 22 23 namespace android { 24 25 ABuffer::ABuffer(size_t capacity) 26 : mData(malloc(capacity)), 27 mCapacity(capacity), 28 mRangeOffset(0), 29 mRangeLength(capacity), 30 mInt32Data(0), 31 mOwnsData(true) { 32 } 33 34 ABuffer::ABuffer(void *data, size_t capacity) 35 : mData(data), 36 mCapacity(capacity), 37 mRangeOffset(0), 38 mRangeLength(capacity), 39 mInt32Data(0), 40 mOwnsData(false) { 41 } 42 43 ABuffer::~ABuffer() { 44 if (mOwnsData) { 45 if (mData != NULL) { 46 free(mData); 47 mData = NULL; 48 } 49 } 50 51 if (mFarewell != NULL) { 52 mFarewell->post(); 53 } 54 } 55 56 void ABuffer::setRange(size_t offset, size_t size) { 57 CHECK_LE(offset, mCapacity); 58 CHECK_LE(offset + size, mCapacity); 59 60 mRangeOffset = offset; 61 mRangeLength = size; 62 } 63 64 void ABuffer::setFarewellMessage(const sp<AMessage> msg) { 65 mFarewell = msg; 66 } 67 68 sp<AMessage> ABuffer::meta() { 69 if (mMeta == NULL) { 70 mMeta = new AMessage; 71 } 72 return mMeta; 73 } 74 75 } // namespace android 76 77
