1a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik/* 2a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * Copyright (C) 2013 The Android Open Source Project 3a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * 4a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * Licensed under the Apache License, Version 2.0 (the "License"); 5a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * you may not use this file except in compliance with the License. 6a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * You may obtain a copy of the License at 7a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * 8a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * http://www.apache.org/licenses/LICENSE-2.0 9a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * 10a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * Unless required by applicable law or agreed to in writing, software 11a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * distributed under the License is distributed on an "AS IS" BASIS, 12a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * See the License for the specific language governing permissions and 14a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik * limitations under the License. 15a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik */ 16a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik 17a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik#include "Registry.h" 18a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik 19a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik#include "Stream.h" 20a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik 21a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craikstatic Registry* gHead = 0; 22a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craikstatic int gHeaderBytesRequired = 0; 23a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik 24a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris CraikRegistry::Registry(const RegistryEntry& entry) { 25a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik mImpl = entry; 26a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik 27a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik mNext = gHead; 28a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik gHead = this; 29a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik 30a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik if (gHeaderBytesRequired < entry.requiredHeaderBytes) { 31a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik gHeaderBytesRequired = entry.requiredHeaderBytes; 32a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik } 33a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik} 34a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik 35a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craikconst RegistryEntry* Registry::Find(Stream* stream) { 36a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik Registry* registry = gHead; 376a61141137c7a46d747aa611c9caf62436bc119fChris Craik 386a61141137c7a46d747aa611c9caf62436bc119fChris Craik if (stream->getRawBuffer() != NULL) { 396a61141137c7a46d747aa611c9caf62436bc119fChris Craik while (registry) { 406a61141137c7a46d747aa611c9caf62436bc119fChris Craik if (registry->mImpl.acceptsBuffer()) { 416a61141137c7a46d747aa611c9caf62436bc119fChris Craik return &(registry->mImpl); 426a61141137c7a46d747aa611c9caf62436bc119fChris Craik } 436a61141137c7a46d747aa611c9caf62436bc119fChris Craik registry = registry->mNext; 446a61141137c7a46d747aa611c9caf62436bc119fChris Craik } 456a61141137c7a46d747aa611c9caf62436bc119fChris Craik } else { 466a61141137c7a46d747aa611c9caf62436bc119fChris Craik int headerSize = gHeaderBytesRequired; 476a61141137c7a46d747aa611c9caf62436bc119fChris Craik char header[headerSize]; 486a61141137c7a46d747aa611c9caf62436bc119fChris Craik headerSize = stream->peek(header, headerSize); 496a61141137c7a46d747aa611c9caf62436bc119fChris Craik while (registry) { 506a61141137c7a46d747aa611c9caf62436bc119fChris Craik if (headerSize >= registry->mImpl.requiredHeaderBytes 516a61141137c7a46d747aa611c9caf62436bc119fChris Craik && registry->mImpl.checkHeader(header, headerSize)) { 526a61141137c7a46d747aa611c9caf62436bc119fChris Craik return &(registry->mImpl); 536a61141137c7a46d747aa611c9caf62436bc119fChris Craik } 546a61141137c7a46d747aa611c9caf62436bc119fChris Craik registry = registry->mNext; 55a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik } 56a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik } 57a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik return 0; 58a1265c3d8a20e805e0c45083d5c7d728d4b70009Chris Craik} 596a61141137c7a46d747aa611c9caf62436bc119fChris Craik 60