| /* $Id$ */ |
| /* |
| * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| * Copyright (C) 2003-2008 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); |
| } |
| |