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/*
* 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 <thrift/transport/TTransportUtils.h>
using std::string;
namespace apache {
namespace thrift {
namespace transport {
uint32_t TPipedTransport::read(uint8_t* buf, uint32_t len) {
uint32_t need = len;
// We don't have enough data yet
if (rLen_ - rPos_ < need) {
// Copy out whatever we have
if (rLen_ - rPos_ > 0) {
memcpy(buf, rBuf_ + rPos_, rLen_ - rPos_);
need -= rLen_ - rPos_;
buf += rLen_ - rPos_;
rPos_ = rLen_;
}
// Double the size of the underlying buffer if it is full
if (rLen_ == rBufSize_) {
rBufSize_ *= 2;
rBuf_ = (uint8_t*)std::realloc(rBuf_, sizeof(uint8_t) * rBufSize_);
}
// try to fill up the buffer
rLen_ += srcTrans_->read(rBuf_ + rPos_, rBufSize_ - rPos_);
}
// Hand over whatever we have
uint32_t give = need;
if (rLen_ - rPos_ < give) {
give = rLen_ - rPos_;
}
if (give > 0) {
memcpy(buf, rBuf_ + rPos_, give);
rPos_ += give;
need -= give;
}
return (len - need);
}
void TPipedTransport::write(const uint8_t* buf, uint32_t len) {
if (len == 0) {
return;
}
// Make the buffer as big as it needs to be
if ((len + wLen_) >= wBufSize_) {
uint32_t newBufSize = wBufSize_ * 2;
while ((len + wLen_) >= newBufSize) {
newBufSize *= 2;
}
wBuf_ = (uint8_t*)std::realloc(wBuf_, sizeof(uint8_t) * newBufSize);
wBufSize_ = newBufSize;
}
// Copy into the buffer
memcpy(wBuf_ + wLen_, buf, len);
wLen_ += len;
}
void TPipedTransport::flush() {
// Write out any data waiting in the write buffer
if (wLen_ > 0) {
srcTrans_->write(wBuf_, wLen_);
wLen_ = 0;
}
// Flush the underlying transport
srcTrans_->flush();
}
TPipedFileReaderTransport::TPipedFileReaderTransport(
boost::shared_ptr<TFileReaderTransport> srcTrans,
boost::shared_ptr<TTransport> dstTrans)
: TPipedTransport(srcTrans, dstTrans), srcTrans_(srcTrans) {
}
TPipedFileReaderTransport::~TPipedFileReaderTransport() {
}
bool TPipedFileReaderTransport::isOpen() {
return TPipedTransport::isOpen();
}
bool TPipedFileReaderTransport::peek() {
return TPipedTransport::peek();
}
void TPipedFileReaderTransport::open() {
TPipedTransport::open();
}
void TPipedFileReaderTransport::close() {
TPipedTransport::close();
}
uint32_t TPipedFileReaderTransport::read(uint8_t* buf, uint32_t len) {
return TPipedTransport::read(buf, len);
}
uint32_t TPipedFileReaderTransport::readAll(uint8_t* buf, uint32_t len) {
uint32_t have = 0;
uint32_t get = 0;
while (have < len) {
get = read(buf + have, len - have);
if (get <= 0) {
throw TEOFException();
}
have += get;
}
return have;
}
uint32_t TPipedFileReaderTransport::readEnd() {
return TPipedTransport::readEnd();
}
void TPipedFileReaderTransport::write(const uint8_t* buf, uint32_t len) {
TPipedTransport::write(buf, len);
}
uint32_t TPipedFileReaderTransport::writeEnd() {
return TPipedTransport::writeEnd();
}
void TPipedFileReaderTransport::flush() {
TPipedTransport::flush();
}
int32_t TPipedFileReaderTransport::getReadTimeout() {
return srcTrans_->getReadTimeout();
}
void TPipedFileReaderTransport::setReadTimeout(int32_t readTimeout) {
srcTrans_->setReadTimeout(readTimeout);
}
uint32_t TPipedFileReaderTransport::getNumChunks() {
return srcTrans_->getNumChunks();
}
uint32_t TPipedFileReaderTransport::getCurChunk() {
return srcTrans_->getCurChunk();
}
void TPipedFileReaderTransport::seekToChunk(int32_t chunk) {
srcTrans_->seekToChunk(chunk);
}
void TPipedFileReaderTransport::seekToEnd() {
srcTrans_->seekToEnd();
}
}
}
} // apache::thrift::transport
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