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53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/* Support routines for the NT version of Emacs.
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Copyright (C) 1994 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* File descriptor set emulation. */
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#ifdef FD_SET
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/* We could get this from param.h, but better not to depend on finding that.
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And better not to risk that it might define other symbols used in this
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file. */
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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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/* Prepare our standard handles for proper inheritance by child processes. */
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extern void prepare_standard_handles (int in, int out,
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int err, HANDLE handles[4]);
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/* Reset our standard handles to their original state. */
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extern void reset_standard_handles (int in, int out,
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int err, HANDLE handles[4]);
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/* Return the string resource associated with KEY of type TYPE. */
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extern LPBYTE nt_get_resource (char *key, LPDWORD type);
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