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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 <cerrno>
#include <exception>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef _WIN32
#include <io.h>
#endif
#include <thrift/transport/TFDTransport.h>
#include <thrift/transport/PlatformSocket.h>
using std::string;
namespace apache {
namespace thrift {
namespace transport {
void TFDTransport::close() {
if (!isOpen()) {
return;
}
int rv = ::THRIFT_CLOSE(fd_);
int errno_copy = THRIFT_ERRNO;
fd_ = -1;
// Have to check uncaught_exception because this is called in the destructor.
#ifdef __cpp_lib_uncaught_exceptions
if (rv < 0 && !std::uncaught_exceptions()) {
#else
if (rv < 0 && !std::uncaught_exception()) {
#endif
throw TTransportException(TTransportException::UNKNOWN, "TFDTransport::close()", errno_copy);
}
}
uint32_t TFDTransport::read(uint8_t* buf, uint32_t len) {
checkReadBytesAvailable(len);
unsigned int maxRetries = 5; // same as the TSocket default
unsigned int retries = 0;
while (true) {
THRIFT_SSIZET rv = ::THRIFT_READ(fd_, buf, len);
if (rv < 0) {
if (THRIFT_ERRNO == THRIFT_EINTR && retries < maxRetries) {
// If interrupted, try again
++retries;
continue;
}
int errno_copy = THRIFT_ERRNO;
throw TTransportException(TTransportException::UNKNOWN, "TFDTransport::read()", errno_copy);
}
// this should be fine, since we already checked for negative values,
// and ::read should only return a 32-bit value since len is 32-bit.
return static_cast<uint32_t>(rv);
}
}
void TFDTransport::write(const uint8_t* buf, uint32_t len) {
while (len > 0) {
THRIFT_SSIZET rv = ::THRIFT_WRITE(fd_, buf, len);
if (rv < 0) {
int errno_copy = THRIFT_ERRNO;
throw TTransportException(TTransportException::UNKNOWN, "TFDTransport::write()", errno_copy);
} else if (rv == 0) {
throw TTransportException(TTransportException::END_OF_FILE, "TFDTransport::write()");
}
buf += rv;
// this should be fine, as we've already checked for negative values, and
//::write shouldn't return more than a uint32_t since len is a uint32_t
len -= static_cast<uint32_t>(rv);
}
}
}
}
} // apache::thrift::transport
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