---

---

---

01: /* Copyright (C) 1997, 1998, 1999, 2000, 2011 Free Software Foundation, Inc.
02:    This file is part of the GNU C Library.
03: 
04:    The GNU C Library is free software; you can redistribute it and/or
05:    modify it under the terms of the GNU Lesser General Public
06:    License as published by the Free Software Foundation; either
07:    version 2.1 of the License, or (at your option) any later version.
08: 
09:    The GNU C Library is distributed in the hope that it will be useful,
10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12:    Lesser General Public License for more details.
13: 
14:    You should have received a copy of the GNU Lesser General Public
15:    License along with the GNU C Library; if not, write to the Free
16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17:    02111-1307 USA.  */
18: 
19: /* System V ABI compliant user-level context switching support.  */
20: 
21: #ifndef _UCONTEXT_H
22: #define _UCONTEXT_H     1
23: 
24: #include <features.h>
25: 
26: /* Get machine dependent definition of data structures.  */
27: #include <sys/ucontext.h>
28: 
29: __BEGIN_DECLS
30: 
31: /* Get user context and store it in variable pointed to by UCP.  */
32: extern int getcontext (ucontext_t *__ucp) __THROWNL;
33: 
34: /* Set user context from information of variable pointed to by UCP.  */
35: extern int setcontext (__const ucontext_t *__ucp) __THROWNL;
36: 
37: /* Save current context in context variable pointed to by OUCP and set
38:    context from variable pointed to by UCP.  */
39: extern int swapcontext (ucontext_t *__restrict __oucp,
40:                         __const ucontext_t *__restrict __ucp) __THROWNL;
41: 
42: /* Manipulate user context UCP to continue with calling functions FUNC
43:    and the ARGC-1 parameters following ARGC when the context is used
44:    the next time in `setcontext' or `swapcontext'.
45: 
46:    We cannot say anything about the parameters FUNC takes; `void'
47:    is as good as any other choice.  */
48: extern void makecontext (ucontext_t *__ucp, void (*__func) (void),
49:                          int __argc, ...) __THROW;
50: 
51: __END_DECLS
52: 
53: #endif /* ucontext.h */
54: 

---

---

---