Guido van Rossum | a330996 | 1993-07-28 09:05:47 +0000 | [diff] [blame] | 1 | #ifndef Py_MYSELECT_H |
| 2 | #define Py_MYSELECT_H |
| 3 | #ifdef __cplusplus |
| 4 | extern "C" { |
| 5 | #endif |
| 6 | |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 7 | /*********************************************************** |
Guido van Rossum | 5799b52 | 1995-01-04 19:06:22 +0000 | [diff] [blame] | 8 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 9 | The Netherlands. |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 10 | |
| 11 | All Rights Reserved |
| 12 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 13 | Permission to use, copy, modify, and distribute this software and its |
| 14 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 15 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 16 | both that copyright notice and this permission notice appear in |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 17 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 18 | Centrum or CWI or Corporation for National Research Initiatives or |
| 19 | CNRI not be used in advertising or publicity pertaining to |
| 20 | distribution of the software without specific, written prior |
| 21 | permission. |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 22 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 23 | While CWI is the initial source for this software, a modified version |
| 24 | is made available by the Corporation for National Research Initiatives |
| 25 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 26 | |
| 27 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 28 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 29 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 30 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 31 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 32 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 33 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 34 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 35 | |
| 36 | ******************************************************************/ |
| 37 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 38 | /* Include file for users of select() */ |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 39 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 40 | /* NB caller must include <sys/types.h> */ |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 41 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 42 | #ifdef HAVE_SYS_SELECT_H |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 43 | |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 44 | #include <sys/select.h> |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 45 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 46 | #ifdef SYS_SELECT_WITH_SYS_TIME |
| 47 | #include "mytime.h" |
| 48 | #else /* !SYS_SELECT_WITH_SYS_TIME */ |
| 49 | #include <time.h> |
| 50 | #endif /* !SYS_SELECT_WITH_SYS_TIME */ |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 51 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 52 | #else /* !HAVE_SYS_SELECT_H */ |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 53 | |
Jack Jansen | e708f40 | 1996-02-14 16:04:39 +0000 | [diff] [blame] | 54 | #ifdef USE_GUSI |
| 55 | /* If we don't have sys/select the definition may be in unistd.h */ |
| 56 | #include <GUSI.h> |
| 57 | #endif |
| 58 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 59 | #include "mytime.h" |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 60 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 61 | #endif /* !HAVE_SYS_SELECT_H */ |
| 62 | |
| 63 | /* If the fd manipulation macros aren't defined, |
| 64 | here is a set that should do the job */ |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 65 | |
| 66 | #ifndef FD_SETSIZE |
| 67 | #define FD_SETSIZE 256 |
| 68 | #endif |
| 69 | |
| 70 | #ifndef FD_SET |
| 71 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 72 | typedef long fd_mask; |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 73 | |
| 74 | #define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */ |
| 75 | #ifndef howmany |
| 76 | #define howmany(x, y) (((x)+((y)-1))/(y)) |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 77 | #endif /* howmany */ |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 78 | |
| 79 | typedef struct fd_set { |
| 80 | fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)]; |
| 81 | } fd_set; |
| 82 | |
| 83 | #define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS))) |
| 84 | #define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS))) |
| 85 | #define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS))) |
Guido van Rossum | 4fbf798 | 1992-08-04 09:13:45 +0000 | [diff] [blame] | 86 | #define FD_ZERO(p) memset((char *)(p), '\0', sizeof(*(p))) |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 87 | |
| 88 | #endif /* FD_SET */ |
Guido van Rossum | a330996 | 1993-07-28 09:05:47 +0000 | [diff] [blame] | 89 | |
| 90 | #ifdef __cplusplus |
| 91 | } |
| 92 | #endif |
| 93 | #endif /* !Py_MYSELECT_H */ |