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01: /* sigstack, sigaltstack definitions.
02:    Copyright (C) 1998, 1999 Free Software Foundation, Inc.
03:    This file is part of the GNU C Library.
04: 
05:    The GNU C Library is free software; you can redistribute it and/or
06:    modify it under the terms of the GNU Lesser General Public
07:    License as published by the Free Software Foundation; either
08:    version 2.1 of the License, or (at your option) any later version.
09: 
10:    The GNU C Library is distributed in the hope that it will be useful,
11:    but WITHOUT ANY WARRANTY; without even the implied warranty of
12:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13:    Lesser General Public License for more details.
14: 
15:    You should have received a copy of the GNU Lesser General Public
16:    License along with the GNU C Library; if not, write to the Free
17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18:    02111-1307 USA.  */
19: 
20: #ifndef _SIGNAL_H
21: # error "Never include this file directly.  Use <signal.h> instead"
22: #endif
23: 
24: 
25: /* Structure describing a signal stack (obsolete).  */
26: struct sigstack
27:   {
28:     void *ss_sp;                /* Signal stack pointer.  */
29:     int ss_onstack;             /* Nonzero if executing on this stack.  */
30:   };
31: 
32: 
33: /* Possible values for `ss_flags.'.  */
34: enum
35: {
36:   SS_ONSTACK = 1,
37: #define SS_ONSTACK      SS_ONSTACK
38:   SS_DISABLE
39: #define SS_DISABLE      SS_DISABLE
40: };
41: 
42: /* Minimum stack size for a signal handler.  */
43: #define MINSIGSTKSZ     2048
44: 
45: /* System default stack size.  */
46: #define SIGSTKSZ        8192
47: 
48: 
49: /* Alternate, preferred interface.  */
50: typedef struct sigaltstack
51:   {
52:     void *ss_sp;
53:     int ss_flags;
54:     size_t ss_size;
55:   } stack_t;
56: 

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