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/*
* GTK VNC Widget
*
* Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _CONTINUATION_H_
#define _CONTINUATION_H_
#include <stddef.h>
#include <ucontext.h>
#include <setjmp.h>
struct continuation
{
char *stack;
size_t stack_size;
void (*entry)(struct continuation *cc);
int (*release)(struct continuation *cc);
/* private */
ucontext_t uc;
ucontext_t last;
int exited;
jmp_buf jmp;
};
void cc_init(struct continuation *cc);
int cc_release(struct continuation *cc);
/* you can use an uninitialized struct continuation for from if you do not have
the current continuation handy. */
int cc_swap(struct continuation *from, struct continuation *to);
#define offset_of(type, member) ((unsigned long)(&((type *)0)->member))
#define container_of(obj, type, member) \
(type *)(((char *)obj) - offset_of(type, member))
#endif
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* tab-width: 8
* End:
*/
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