|
Packit |
6c4009 |
/* Copyright (C) 1997-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* System V ABI compliant user-level context switching support. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#ifndef _UCONTEXT_H
|
|
Packit |
6c4009 |
#define _UCONTEXT_H 1
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <features.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Get definition of __INDIRECT_RETURN. */
|
|
Packit |
6c4009 |
#include <bits/indirect-return.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Get machine dependent definition of data structures. */
|
|
Packit |
6c4009 |
#include <sys/ucontext.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
__BEGIN_DECLS
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Get user context and store it in variable pointed to by UCP. */
|
|
Packit |
6c4009 |
extern int getcontext (ucontext_t *__ucp) __THROWNL;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Set user context from information of variable pointed to by UCP. */
|
|
Packit |
6c4009 |
extern int setcontext (const ucontext_t *__ucp) __THROWNL;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Save current context in context variable pointed to by OUCP and set
|
|
Packit |
6c4009 |
context from variable pointed to by UCP. */
|
|
Packit |
6c4009 |
extern int swapcontext (ucontext_t *__restrict __oucp,
|
|
Packit |
6c4009 |
const ucontext_t *__restrict __ucp)
|
|
Packit |
6c4009 |
__THROWNL __INDIRECT_RETURN;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Manipulate user context UCP to continue with calling functions FUNC
|
|
Packit |
6c4009 |
and the ARGC-1 parameters following ARGC when the context is used
|
|
Packit |
6c4009 |
the next time in `setcontext' or `swapcontext'.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
We cannot say anything about the parameters FUNC takes; `void'
|
|
Packit |
6c4009 |
is as good as any other choice. */
|
|
Packit |
6c4009 |
extern void makecontext (ucontext_t *__ucp, void (*__func) (void),
|
|
Packit |
6c4009 |
int __argc, ...) __THROW;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
__END_DECLS
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#endif /* ucontext.h */
|