| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 "lib/commons.h" |
| #include "util/Checksum.h" |
| #include "lib/Streams.h" |
| |
| namespace NativeTask { |
| |
| ///////////////////////////////////////////////////////////// |
| |
| void InputStream::seek(uint64_t position) { |
| THROW_EXCEPTION(UnsupportException, "seek not support"); |
| } |
| |
| uint64_t InputStream::tell() { |
| THROW_EXCEPTION(UnsupportException, "tell not support"); |
| } |
| |
| int32_t InputStream::readFully(void * buff, uint32_t length) { |
| int32_t ret = 0; |
| while (length > 0) { |
| int32_t rd = read(buff, length); |
| if (rd <= 0) { |
| return ret > 0 ? ret : -1; |
| } |
| ret += rd; |
| buff = ((char *)buff) + rd; |
| length -= rd; |
| } |
| return ret; |
| } |
| |
| void InputStream::readAllTo(OutputStream & out, uint32_t bufferHint) { |
| char * buffer = new char[bufferHint]; |
| while (true) { |
| int32_t rd = read(buffer, bufferHint); |
| if (rd <= 0) { |
| break; |
| } |
| out.write(buffer, rd); |
| } |
| delete buffer; |
| } |
| |
| ///////////////////////////////////////////////////////////// |
| |
| uint64_t OutputStream::tell() { |
| THROW_EXCEPTION(UnsupportException, "tell not support"); |
| } |
| |
| /////////////////////////////////////////////////////////// |
| |
| ChecksumInputStream::ChecksumInputStream(InputStream * stream, ChecksumType type) |
| : FilterInputStream(stream), _type(type), _limit(-1) { |
| resetChecksum(); |
| } |
| |
| void ChecksumInputStream::resetChecksum() { |
| _checksum = Checksum::init(_type); |
| } |
| |
| uint32_t ChecksumInputStream::getChecksum() { |
| return Checksum::getValue(_type, _checksum); |
| } |
| |
| int32_t ChecksumInputStream::read(void * buff, uint32_t length) { |
| if (_limit < 0) { |
| int32_t ret = _stream->read(buff, length); |
| if (ret > 0) { |
| Checksum::update(_type, _checksum, buff, ret); |
| } |
| return ret; |
| } else if (_limit == 0) { |
| return -1; |
| } else { |
| int64_t rd = _limit < length ? _limit : length; |
| int32_t ret = _stream->read(buff, rd); |
| if (ret > 0) { |
| _limit -= ret; |
| Checksum::update(_type, _checksum, buff, ret); |
| } |
| return ret; |
| } |
| } |
| |
| /////////////////////////////////////////////////////////// |
| |
| ChecksumOutputStream::ChecksumOutputStream(OutputStream * stream, ChecksumType type) |
| : FilterOutputStream(stream), _type(type) { |
| resetChecksum(); |
| } |
| |
| void ChecksumOutputStream::resetChecksum() { |
| _checksum = Checksum::init(_type); |
| } |
| |
| uint32_t ChecksumOutputStream::getChecksum() { |
| return Checksum::getValue(_type, _checksum); |
| } |
| |
| void ChecksumOutputStream::write(const void * buff, uint32_t length) { |
| Checksum::update(_type, _checksum, buff, length); |
| _stream->write(buff, length); |
| } |
| |
| } // namespace NativeTask |