diff options
Diffstat (limited to 'Include/myselect.h')
| -rw-r--r-- | Include/myselect.h | 44 |
1 files changed, 17 insertions, 27 deletions
diff --git a/Include/myselect.h b/Include/myselect.h index 174da11a40..e4f2b289a5 100644 --- a/Include/myselect.h +++ b/Include/myselect.h @@ -5,7 +5,7 @@ extern "C" { #endif /*********************************************************** -Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum, +Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum, Amsterdam, The Netherlands. All Rights Reserved @@ -28,38 +28,28 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ -/* Common definitions for files that use the BSD select system call. - This is so complicated because every UNIX variant requires that - you include a different set of headers. Customizing this one file - should be easier than patching each of the files using select()... */ +/* Include file for users of select() */ +/* NB caller must include <sys/types.h> */ -/* XXX You may have to include some of these only if not already included */ -#include <sys/types.h> -#include <sys/time.h> /* Implies <time.h> everywhere, as far as I know */ -#include <sys/param.h> +#ifdef HAVE_SYS_SELECT_H - -/* Hacks for various systems that need hand-holding... */ - -#ifdef _SEQUENT_ #include <sys/select.h> -/* Sequent doesn't seem to define struct timezone anywhere?!?! */ -struct timezone { - int tz_minuteswest; - int tz_dsttime; -}; -#endif -#ifdef _AIX /* I *think* this works */ -/* AIX defines fd_set in a separate file. Sigh... */ -#include <sys/select.h> -#endif +#ifdef SYS_SELECT_WITH_SYS_TIME +#include "mytime.h" +#else /* !SYS_SELECT_WITH_SYS_TIME */ +#include <time.h> +#endif /* !SYS_SELECT_WITH_SYS_TIME */ + +#else /* !HAVE_SYS_SELECT_H */ +#include "mytime.h" +#endif /* !HAVE_SYS_SELECT_H */ -/* (Very) old versions of BSD don't define the FD_* set of macros. - The following will usually do... */ +/* If the fd manipulation macros aren't defined, + here is a set that should do the job */ #ifndef FD_SETSIZE #define FD_SETSIZE 256 @@ -67,12 +57,12 @@ struct timezone { #ifndef FD_SET -typedef long fd_mask; +typedef long fd_mask; #define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */ #ifndef howmany #define howmany(x, y) (((x)+((y)-1))/(y)) -#endif +#endif /* howmany */ typedef struct fd_set { fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)]; |