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/*
This file is part of libmicrohttpd
Copyright (C) 2007-2018 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 lib/daemon_info.c
* @brief implementation of MHD_daemon_get_information_sz()
* @author Christian Grothoff
*/
#include "internal.h"
/**
* Obtain information about the given daemon.
* Use wrapper macro #MHD_daemon_get_information() instead of direct use
* of this function.
*
* @param daemon what daemon to get information about
* @param info_type what information is desired?
* @param[out] return_value pointer to union where requested information will
* be stored
* @param return_value_size size of union MHD_DaemonInformation at compile
* time
* @return #MHD_YES on success, #MHD_NO on error
* (@a info_type is unknown, NULL pointer etc.)
* @ingroup specialized
*/
enum MHD_Bool
MHD_daemon_get_information_sz (struct MHD_Daemon *daemon,
enum MHD_DaemonInformationType info_type,
union MHD_DaemonInformation *return_value,
size_t return_value_size)
{
#if OLD
if (NULL == daemon)
return NULL;
switch (info_type)
{
case MHD_DAEMON_INFO_KEY_SIZE:
return NULL; /* no longer supported */
case MHD_DAEMON_INFO_MAC_KEY_SIZE:
return NULL; /* no longer supported */
case MHD_DAEMON_INFO_LISTEN_FD:
return (const union MHD_DaemonInfo *) &daemon->listen_fd;
#ifdef EPOLL_SUPPORT
case MHD_DAEMON_INFO_EPOLL_FD:
return (const union MHD_DaemonInfo *) &daemon->epoll_fd;
#endif
case MHD_DAEMON_INFO_CURRENT_CONNECTIONS:
if (0 == (daemon->options & MHD_USE_INTERNAL_POLLING_THREAD))
{
/* Assume that MHD_run() in not called in other thread
* at the same time. */
MHD_cleanup_connections (daemon);
}
else if (daemon->worker_pool)
{
unsigned int i;
/* Collect the connection information stored in the workers. */
daemon->connections = 0;
for (i = 0; i < daemon->worker_pool_size; i++)
{
/* FIXME: next line is thread-safe only if read is atomic. */
daemon->connections += daemon->worker_pool[i].connections;
}
}
return (const union MHD_DaemonInfo *) &daemon->connections;
case MHD_DAEMON_INFO_FLAGS:
return (const union MHD_DaemonInfo *) &daemon->options;
case MHD_DAEMON_INFO_BIND_PORT:
return (const union MHD_DaemonInfo *) &daemon->port;
default:
return NULL;
}
#else
return MHD_NO;
#endif
}
/* end of daemon_info.c */
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