Alexandre Lision | 8af73cb | 2013-12-10 14:11:20 -0500 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pj/sock_select.h> |
| 21 | #include <pj/compat/socket.h> |
| 22 | #include <pj/os.h> |
| 23 | #include <pj/assert.h> |
| 24 | #include <pj/errno.h> |
| 25 | |
| 26 | #if defined(PJ_HAS_STRING_H) && PJ_HAS_STRING_H!=0 |
| 27 | # include <string.h> |
| 28 | #endif |
| 29 | |
| 30 | #if defined(PJ_HAS_SYS_TIME_H) && PJ_HAS_SYS_TIME_H!=0 |
| 31 | # include <sys/time.h> |
| 32 | #endif |
| 33 | |
| 34 | #ifdef _MSC_VER |
| 35 | # pragma warning(disable: 4018) // Signed/unsigned mismatch in FD_* |
| 36 | # pragma warning(disable: 4389) // Signed/unsigned mismatch in FD_* |
| 37 | #endif |
| 38 | |
| 39 | #define PART_FDSET(ps) ((fd_set*)&ps->data[1]) |
| 40 | #define PART_FDSET_OR_NULL(ps) (ps ? PART_FDSET(ps) : NULL) |
| 41 | #define PART_COUNT(ps) (ps->data[0]) |
| 42 | |
| 43 | PJ_DEF(void) PJ_FD_ZERO(pj_fd_set_t *fdsetp) |
| 44 | { |
| 45 | PJ_CHECK_STACK(); |
| 46 | pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set)); |
| 47 | |
| 48 | FD_ZERO(PART_FDSET(fdsetp)); |
| 49 | PART_COUNT(fdsetp) = 0; |
| 50 | } |
| 51 | |
| 52 | |
| 53 | PJ_DEF(void) PJ_FD_SET(pj_sock_t fd, pj_fd_set_t *fdsetp) |
| 54 | { |
| 55 | PJ_CHECK_STACK(); |
| 56 | pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set)); |
| 57 | |
| 58 | if (!PJ_FD_ISSET(fd, fdsetp)) |
| 59 | ++PART_COUNT(fdsetp); |
| 60 | FD_SET(fd, PART_FDSET(fdsetp)); |
| 61 | } |
| 62 | |
| 63 | |
| 64 | PJ_DEF(void) PJ_FD_CLR(pj_sock_t fd, pj_fd_set_t *fdsetp) |
| 65 | { |
| 66 | PJ_CHECK_STACK(); |
| 67 | pj_assert(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set)); |
| 68 | |
| 69 | if (PJ_FD_ISSET(fd, fdsetp)) |
| 70 | --PART_COUNT(fdsetp); |
| 71 | FD_CLR(fd, PART_FDSET(fdsetp)); |
| 72 | } |
| 73 | |
| 74 | |
| 75 | PJ_DEF(pj_bool_t) PJ_FD_ISSET(pj_sock_t fd, const pj_fd_set_t *fdsetp) |
| 76 | { |
| 77 | PJ_CHECK_STACK(); |
| 78 | PJ_ASSERT_RETURN(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set), |
| 79 | 0); |
| 80 | |
| 81 | return FD_ISSET(fd, PART_FDSET(fdsetp)); |
| 82 | } |
| 83 | |
| 84 | PJ_DEF(pj_size_t) PJ_FD_COUNT(const pj_fd_set_t *fdsetp) |
| 85 | { |
| 86 | return PART_COUNT(fdsetp); |
| 87 | } |
| 88 | |
| 89 | PJ_DEF(int) pj_sock_select( int n, |
| 90 | pj_fd_set_t *readfds, |
| 91 | pj_fd_set_t *writefds, |
| 92 | pj_fd_set_t *exceptfds, |
| 93 | const pj_time_val *timeout) |
| 94 | { |
| 95 | struct timeval os_timeout, *p_os_timeout; |
| 96 | |
| 97 | PJ_CHECK_STACK(); |
| 98 | |
| 99 | PJ_ASSERT_RETURN(sizeof(pj_fd_set_t)-sizeof(pj_sock_t) >= sizeof(fd_set), |
| 100 | PJ_EBUG); |
| 101 | |
| 102 | if (timeout) { |
| 103 | os_timeout.tv_sec = timeout->sec; |
| 104 | os_timeout.tv_usec = timeout->msec * 1000; |
| 105 | p_os_timeout = &os_timeout; |
| 106 | } else { |
| 107 | p_os_timeout = NULL; |
| 108 | } |
| 109 | |
| 110 | return select(n, PART_FDSET_OR_NULL(readfds), PART_FDSET_OR_NULL(writefds), |
| 111 | PART_FDSET_OR_NULL(exceptfds), p_os_timeout); |
| 112 | } |
| 113 | |