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60 lines
1.7 KiB
60 lines
1.7 KiB
4 months ago
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/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "Registry.h"
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#include "Stream.h"
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static Registry* gHead = 0;
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static int gHeaderBytesRequired = 0;
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Registry::Registry(const RegistryEntry& entry) {
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mImpl = entry;
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mNext = gHead;
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gHead = this;
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if (gHeaderBytesRequired < entry.requiredHeaderBytes) {
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gHeaderBytesRequired = entry.requiredHeaderBytes;
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}
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}
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const RegistryEntry* Registry::Find(Stream* stream) {
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Registry* registry = gHead;
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if (stream->getRawBuffer() != NULL) {
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while (registry) {
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if (registry->mImpl.acceptsBuffer()) {
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return &(registry->mImpl);
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}
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registry = registry->mNext;
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}
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} else {
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int headerSize = gHeaderBytesRequired;
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char header[headerSize];
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headerSize = stream->peek(header, headerSize);
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while (registry) {
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if (headerSize >= registry->mImpl.requiredHeaderBytes
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&& registry->mImpl.checkHeader(header, headerSize)) {
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return &(registry->mImpl);
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}
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registry = registry->mNext;
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}
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}
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return 0;
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}
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