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/* $Id$ */
/*
* Copyright (C)2003-2006 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <pj/sock_select.h>
#include <pj/compat/socket.h>
#include <pj/os.h>
#include <pj/assert.h>
#include <pj/errno.h>
#if defined(PJ_HAS_STRING_H) && PJ_HAS_STRING_H!=0
# include <string.h>
#endif
#if defined(PJ_HAS_SYS_TIME_H) && PJ_HAS_SYS_TIME_H!=0
# include <sys/time.h>
#endif
#ifdef _MSC_VER
# pragma warning(disable: 4018) // Signed/unsigned mismatch in FD_*
# pragma warning(disable: 4389) // Signed/unsigned mismatch in FD_*
#endif
#define PART_FDSET(ps) ((fd_set*)&ps->data[1])
#define PART_FDSET_OR_NULL(ps) (ps ? PART_FDSET(ps) : NULL)
#define PART_COUNT(ps) (ps->data[0])
PJ_DEF(void) PJ_FD_ZERO(pj_fd_set_t *fdsetp)
{
PJ_CHECK_STACK();
pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set));
FD_ZERO(PART_FDSET(fdsetp));
PART_COUNT(fdsetp) = 0;
}
PJ_DEF(void) PJ_FD_SET(pj_sock_t fd, pj_fd_set_t *fdsetp)
{
PJ_CHECK_STACK();
pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set));
if (!PJ_FD_ISSET(fd, fdsetp))
++PART_COUNT(fdsetp);
FD_SET(fd, PART_FDSET(fdsetp));
}
PJ_DEF(void) PJ_FD_CLR(pj_sock_t fd, pj_fd_set_t *fdsetp)
{
PJ_CHECK_STACK();
pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set));
if (PJ_FD_ISSET(fd, fdsetp))
--PART_COUNT(fdsetp);
FD_CLR(fd, PART_FDSET(fdsetp));
}
PJ_DEF(pj_bool_t) PJ_FD_ISSET(pj_sock_t fd, const pj_fd_set_t *fdsetp)
{
PJ_CHECK_STACK();
PJ_ASSERT_RETURN(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set),
0);
return FD_ISSET(fd, PART_FDSET(fdsetp));
}
PJ_DEF(pj_size_t) PJ_FD_COUNT(const pj_fd_set_t *fdsetp)
{
return PART_COUNT(fdsetp);
}
PJ_DEF(int) pj_sock_select( int n,
pj_fd_set_t *readfds,
pj_fd_set_t *writefds,
pj_fd_set_t *exceptfds,
const pj_time_val *timeout)
{
struct timeval os_timeout, *p_os_timeout;
PJ_CHECK_STACK();
PJ_ASSERT_RETURN(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set),
PJ_EBUG);
if (timeout) {
os_timeout.tv_sec = timeout->sec;
os_timeout.tv_usec = timeout->msec * 1000;
p_os_timeout = &os_timeout;
} else {
p_os_timeout = NULL;
}
return select(n, PART_FDSET_OR_NULL(readfds), PART_FDSET_OR_NULL(writefds),
PART_FDSET_OR_NULL(exceptfds), p_os_timeout);
}
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