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- #ifndef Py_MYSELECT_H
- #define Py_MYSELECT_H
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /***********************************************************
- Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
- The Netherlands.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Stichting Mathematisch
- Centrum or CWI or Corporation for National Research Initiatives or
- CNRI not be used in advertising or publicity pertaining to
- distribution of the software without specific, written prior
- permission.
-
- While CWI is the initial source for this software, a modified version
- is made available by the Corporation for National Research Initiatives
- (CNRI) at the Internet address ftp://ftp.python.org.
-
- STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
- REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
- CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
- DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- PERFORMANCE OF THIS SOFTWARE.
-
- ******************************************************************/
-
- /* Include file for users of select() */
-
- /* NB caller must include <sys/types.h> */
-
- #ifdef HAVE_SYS_SELECT_H
-
- #ifdef SYS_SELECT_WITH_SYS_TIME
- #include "mytime.h"
- #else /* !SYS_SELECT_WITH_SYS_TIME */
- #include <time.h>
- #endif /* !SYS_SELECT_WITH_SYS_TIME */
-
- #include <sys/select.h>
-
- #else /* !HAVE_SYS_SELECT_H */
-
- #ifdef USE_GUSI
- /* If we don't have sys/select the definition may be in unistd.h */
- #include <GUSI.h>
- #endif
-
- #include "mytime.h"
-
- #endif /* !HAVE_SYS_SELECT_H */
-
- /* If the fd manipulation macros aren't defined,
- here is a set that should do the job */
-
- #ifndef FD_SETSIZE
- #define FD_SETSIZE 256
- #endif
-
- #ifndef FD_SET
-
- typedef long fd_mask;
-
- #define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */
- #ifndef howmany
- #define howmany(x, y) (((x)+((y)-1))/(y))
- #endif /* howmany */
-
- typedef struct fd_set {
- fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
- } fd_set;
-
- #define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
- #define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
- #define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
- #define FD_ZERO(p) memset((char *)(p), '\0', sizeof(*(p)))
-
- #endif /* FD_SET */
-
- #ifdef __cplusplus
- }
- #endif
- #endif /* !Py_MYSELECT_H */
-