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/*
This file is part of libmicrohttpd
(C) 2007 Daniel Pittman and Christian Grothoff
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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 library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file connection.h
* @brief Methods for managing connections
* @author Daniel Pittman
* @author Christian Grothoff
*/
#ifndef CONNECTION_H
#define CONNECTION_H
#include "internal.h"
/**
* Obtain the select sets for this connection. The given
* sets (and the maximum) are updated and must have
* already been initialized.
*
* @param connection connetion to get select sets for
* @param read_fd_set read set to initialize
* @param write_fd_set write set to initialize
* @param except_fd_set except set to initialize (never changed)
* @param max_fd where to store largest FD put into any set
* @return MHD_YES on success
*/
int
MHD_connection_get_fdset (struct MHD_Connection *connection,
fd_set * read_fd_set,
fd_set * write_fd_set,
fd_set * except_fd_set, int *max_fd);
/**
* Obtain the pollfd for this connection. The poll interface allows large
* file descriptors. Select goes stupid when the fd overflows fdset (which
* is fixed).
*
* @param connection connetion to get poll set for
* @param p where to store the polling information
*/
int
MHD_connection_get_pollfd (struct MHD_Connection *connection,
struct MHD_Pollfd *p);
/**
* Set callbacks for this connection to those for HTTP.
*
* @param connection connection to initialize
*/
void
MHD_set_http_callbacks_ (struct MHD_Connection *connection);
/**
* This function handles a particular connection when it has been
* determined that there is data to be read off a socket. All
* implementations (multithreaded, external select, internal select)
* call this function to handle reads.
*
* @param connection connection to handle
* @return always MHD_YES (we should continue to process the
* connection)
*/
int
MHD_connection_handle_read (struct MHD_Connection *connection);
/**
* This function was created to handle writes to sockets when it has
* been determined that the socket can be written to. All
* implementations (multithreaded, external select, internal select)
* call this function
*
* @param connection connection to handle
* @return always MHD_YES (we should continue to process the
* connection)
*/
int
MHD_connection_handle_write (struct MHD_Connection *connection);
/**
* This function was created to handle per-connection processing that
* has to happen even if the socket cannot be read or written to. All
* implementations (multithreaded, external select, internal select)
* call this function.
*
* @param connection connection to handle
* @return MHD_YES if we should continue to process the
* connection (not dead yet), MHD_NO if it died
*/
int
MHD_connection_handle_idle (struct MHD_Connection *connection);
/**
* Close the given connection and give the
* specified termination code to the user.
*
* @param connection connection to close
* @param termination_code termination reason to give
*/
void
MHD_connection_close (struct MHD_Connection *connection,
enum MHD_RequestTerminationCode termination_code);
#endif
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