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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* sysselect.h - System-dependent definitions for the select function.
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Copyright (C) 1995 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifdef HAVE_SYS_SELECT
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#include <sys/select.h>
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#endif
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#ifdef FD_SET
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#ifdef FD_SETSIZE
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#define MAXDESC FD_SETSIZE
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#else
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#define MAXDESC 64
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#endif
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#define SELECT_TYPE fd_set
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#else /* no FD_SET */
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#define MAXDESC 32
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#define SELECT_TYPE int
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/* Define the macros to access a single-int bitmap of descriptors. */
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#define FD_SET(n, p) (*(p) |= (1 << (n)))
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#define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
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#define FD_ISSET(n, p) (*(p) & (1 << (n)))
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#define FD_ZERO(p) (*(p) = 0)
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#endif /* no FD_SET */
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#if !defined (HAVE_SELECT) || defined (BROKEN_SELECT_NON_X)
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#define select sys_select
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#endif
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/* arch-tag: 36d05500-8cf6-4847-8e78-6721f18c06ef
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(do not change this comment) */
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