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IServerSocket.h
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IServerSocket.h
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/**
* Copyright (c) 2018-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <wdt/ErrorCodes.h>
#include <wdt/util/EncryptionUtils.h>
#include <netdb.h>
#include <string>
namespace facebook {
namespace wdt {
typedef struct addrinfo *addrInfoList;
class IServerSocket {
public:
virtual ~IServerSocket() {
}
/**
* Begin listening for connections
*/
virtual ErrorCode listen() = 0;
/**
* Accept the next (/only) incoming connection.
*/
virtual ErrorCode acceptNextConnection(int timeoutMillis,
bool tryCurAddressFirst) = 0;
/// @return peer ip
virtual std::string getPeerIp() const = 0;
/// @return peer port
virtual std::string getPeerPort() const = 0;
virtual int getBackLog() const = 0;
/**
* Stops accepting new connections, closes the server socket, and terminates
* the active connection. This should be avoided. Use closeConnection()
* instead
*/
virtual void closeAllNoCheck() = 0;
/**
* Tries to read nbyte data and periodically checks for abort
*/
virtual int read(char *buf, int nbyte, bool tryFull = true) = 0;
/**
* Tries to read nbyte data with a specific timeout and periodically checks
* for abort
*/
virtual int readWithTimeout(char *buf, int nbyte, int timeoutMs,
bool tryFull) = 0;
/**
* tries to write nbyte data, if retry is true, socket tries
* to write as long as it makes some progress within a write timeout
*/
virtual int write(char *buf, int nbyte, bool retry = false) = 0;
virtual ErrorCode shutdownWrites() = 0;
virtual ErrorCode expectEndOfStream() = 0;
/**
* Normal closing of the current connection.
*/
virtual ErrorCode closeConnection() = 0;
/**
* Close unexpectedly.
* This api is to be avoided/elminated.
*/
virtual void closeNoCheck() = 0;
/// @return current fd
virtual int getFd() const = 0;
/// @return port
virtual int getPort() const = 0;
/// @return current encryption type
virtual EncryptionType getEncryptionType() const = 0;
/// @return possible non-retryable error
virtual ErrorCode getNonRetryableErrCode() const = 0;
/// @return read error code
virtual ErrorCode getReadErrCode() const = 0;
/// @return write error code
virtual ErrorCode getWriteErrCode() const = 0;
virtual void disableIvChange() = 0;
};
} // namespace wdt
} // namespace facebook