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48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/*
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* Copyright 2019 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 <unistd.h>
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#include "FileInputStream.h"
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namespace parselib {
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int32_t FileInputStream::read(void *buff, int32_t numBytes) {
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return ::read(mFH, buff, numBytes);
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}
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int32_t FileInputStream::peek(void *buff, int32_t numBytes) {
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int32_t numRead = ::read(mFH, buff, numBytes);
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::lseek(mFH, -numBytes, SEEK_CUR);
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return numRead;
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}
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void FileInputStream::advance(int32_t numBytes) {
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if (numBytes > 0) {
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::lseek(mFH, numBytes, SEEK_CUR);
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}
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}
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int32_t FileInputStream::getPos() {
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return ::lseek(mFH, 0L, SEEK_CUR);
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}
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void FileInputStream::setPos(int32_t pos) {
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if (pos > 0) {
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::lseek(mFH, pos, SEEK_SET);
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}
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}
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} /* namespace parselib */
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