hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/*
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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 "vector_output_stream.h"
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#include <android-base/logging.h>
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namespace art {
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VectorOutputStream::VectorOutputStream(const std::string& location, std::vector<uint8_t>* vector)
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: OutputStream(location), offset_(vector->size()), vector_(vector) {}
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off_t VectorOutputStream::Seek(off_t offset, Whence whence) {
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CHECK(whence == kSeekSet || whence == kSeekCurrent || whence == kSeekEnd) << whence;
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off_t new_offset = 0;
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switch (whence) {
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case kSeekSet: {
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new_offset = offset;
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break;
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}
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case kSeekCurrent: {
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new_offset = offset_ + offset;
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break;
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}
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case kSeekEnd: {
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new_offset = vector_->size() + offset;
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break;
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}
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}
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EnsureCapacity(new_offset);
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offset_ = new_offset;
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return offset_;
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}
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} // namespace art
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