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3ef31cb5 | 1 | /* sysselect.h - System-dependent definitions for the select function. |
ab422c4d | 2 | Copyright (C) 1995, 2001-2013 Free Software Foundation, Inc. |
3ef31cb5 KH |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
b9b1cc14 | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
3ef31cb5 | 7 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
3ef31cb5 KH |
10 | |
11 | GNU Emacs 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 | |
b9b1cc14 | 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
3ef31cb5 | 18 | |
0d23c240 | 19 | #ifndef DOS_NT |
3ef31cb5 | 20 | #include <sys/select.h> |
388cdec0 | 21 | #endif |
3ef31cb5 | 22 | |
a583bbef EZ |
23 | /* The w32 build defines select stuff in w32.h, which is included |
24 | where w32 needs it, but not where sysselect.h is included. The w32 | |
25 | definitions in w32.h are incompatible with the below. */ | |
26 | #ifndef WINDOWSNT | |
3ef31cb5 | 27 | #ifdef FD_SET |
d486344e PE |
28 | #ifndef FD_SETSIZE |
29 | #define FD_SETSIZE 64 | |
3ef31cb5 | 30 | #endif |
3ef31cb5 | 31 | #else /* no FD_SET */ |
d486344e PE |
32 | #define FD_SETSIZE 32 |
33 | typedef int fd_set; | |
3ef31cb5 KH |
34 | |
35 | /* Define the macros to access a single-int bitmap of descriptors. */ | |
36 | #define FD_SET(n, p) (*(p) |= (1 << (n))) | |
37 | #define FD_CLR(n, p) (*(p) &= ~(1 << (n))) | |
38 | #define FD_ISSET(n, p) (*(p) & (1 << (n))) | |
39 | #define FD_ZERO(p) (*(p) = 0) | |
40 | #endif /* no FD_SET */ | |
a583bbef | 41 | #endif /* not WINDOWSNT */ |
3ef31cb5 | 42 | |
4624371d | 43 | #if !defined (HAVE_SELECT) |
3ef31cb5 KH |
44 | #define select sys_select |
45 | #endif | |
0d23c240 | 46 | |
c9240d7a | 47 | #ifdef MSDOS |
0d23c240 EZ |
48 | #define pselect sys_select |
49 | #endif |