mirror of
https://github.com/zeromq/libzmq.git
synced 2024-12-29 00:32:34 +08:00
86 lines
3.3 KiB
C++
86 lines
3.3 KiB
C++
/*
|
|
Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
|
|
|
|
This file is part of libzmq, the ZeroMQ core engine in C++.
|
|
|
|
libzmq is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU Lesser General Public License (LGPL) as published
|
|
by the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
As a special exception, the Contributors give you permission to link
|
|
this library with independent modules to produce an executable,
|
|
regardless of the license terms of these independent modules, and to
|
|
copy and distribute the resulting executable under terms of your choice,
|
|
provided that you also meet, for each linked independent module, the
|
|
terms and conditions of the license of that module. An independent
|
|
module is a module which is not derived from or based on this library.
|
|
If you modify this library, you must extend this exception to your
|
|
version of the library.
|
|
|
|
libzmq is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __ZMQ_TCP_HPP_INCLUDED__
|
|
#define __ZMQ_TCP_HPP_INCLUDED__
|
|
|
|
#include "fd.hpp"
|
|
|
|
namespace zmq
|
|
{
|
|
class tcp_address_t;
|
|
struct options_t;
|
|
|
|
// Tunes the supplied TCP socket for the best latency.
|
|
int tune_tcp_socket (fd_t s_);
|
|
|
|
// Sets the socket send buffer size.
|
|
int set_tcp_send_buffer (fd_t sockfd_, int bufsize_);
|
|
|
|
// Sets the socket receive buffer size.
|
|
int set_tcp_receive_buffer (fd_t sockfd_, int bufsize_);
|
|
|
|
// Tunes TCP keep-alives
|
|
int tune_tcp_keepalives (fd_t s_,
|
|
int keepalive_,
|
|
int keepalive_cnt_,
|
|
int keepalive_idle_,
|
|
int keepalive_intvl_);
|
|
|
|
// Tunes TCP max retransmit timeout
|
|
int tune_tcp_maxrt (fd_t sockfd_, int timeout_);
|
|
|
|
// Writes data to the socket. Returns the number of bytes actually
|
|
// written (even zero is to be considered to be a success). In case
|
|
// of error or orderly shutdown by the other peer -1 is returned.
|
|
int tcp_write (fd_t s_, const void *data_, size_t size_);
|
|
|
|
// Reads data from the socket (up to 'size' bytes).
|
|
// Returns the number of bytes actually read or -1 on error.
|
|
// Zero indicates the peer has closed the connection.
|
|
int tcp_read (fd_t s_, void *data_, size_t size_);
|
|
|
|
void tcp_tune_loopback_fast_path (fd_t socket_);
|
|
|
|
void tune_tcp_busy_poll (fd_t socket_, int busy_poll_);
|
|
|
|
// Resolves the given address_ string, opens a socket and sets socket options
|
|
// according to the passed options_. On success, returns the socket
|
|
// descriptor and assigns the resolved address to out_tcp_addr_. In case of
|
|
// an error, retired_fd is returned, and the value of out_tcp_addr_ is undefined.
|
|
// errno is set to an error code describing the cause of the error.
|
|
fd_t tcp_open_socket (const char *address_,
|
|
const options_t &options_,
|
|
bool local_,
|
|
bool fallback_to_ipv4_,
|
|
tcp_address_t *out_tcp_addr_);
|
|
}
|
|
|
|
#endif
|