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rocksdb/thrift/lib/cpp/transport/TFDTransport.h

74 lines
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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.
*/
#ifndef _THRIFT_TRANSPORT_TFDTRANSPORT_H_
#define _THRIFT_TRANSPORT_TFDTRANSPORT_H_ 1
#include <string>
#include <sys/time.h>
#include "TTransport.h"
#include "TVirtualTransport.h"
namespace apache { namespace thrift { namespace transport {
/**
* Dead-simple wrapper around a file descriptor.
*
*/
class TFDTransport : public TVirtualTransport<TFDTransport> {
public:
enum ClosePolicy
{ NO_CLOSE_ON_DESTROY = 0
, CLOSE_ON_DESTROY = 1
};
TFDTransport(int fd, ClosePolicy close_policy = NO_CLOSE_ON_DESTROY)
: fd_(fd)
, close_policy_(close_policy)
{}
~TFDTransport() {
if (close_policy_ == CLOSE_ON_DESTROY) {
close();
}
}
bool isOpen() { return fd_ >= 0; }
void open() {}
void close();
uint32_t read(uint8_t* buf, uint32_t len);
void write(const uint8_t* buf, uint32_t len);
void setFD(int fd) { fd_ = fd; }
int getFD() { return fd_; }
protected:
int fd_;
ClosePolicy close_policy_;
};
}}} // apache::thrift::transport
#endif // #ifndef _THRIFT_TRANSPORT_TFDTRANSPORT_H_