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/*
* Copyright 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <unistd.h>
#include "FileInputStream.h"
namespace parselib {
int32_t FileInputStream::read(void *buff, int32_t numBytes) {
return ::read(mFH, buff, numBytes);
}
int32_t FileInputStream::peek(void *buff, int32_t numBytes) {
int32_t numRead = ::read(mFH, buff, numBytes);
::lseek(mFH, -numBytes, SEEK_CUR);
return numRead;
}
void FileInputStream::advance(int32_t numBytes) {
if (numBytes > 0) {
::lseek(mFH, numBytes, SEEK_CUR);
}
}
int32_t FileInputStream::getPos() {
return ::lseek(mFH, 0L, SEEK_CUR);
}
void FileInputStream::setPos(int32_t pos) {
if (pos > 0) {
::lseek(mFH, pos, SEEK_SET);
}
}
} /* namespace parselib */
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