/*
* Copyright (c) 2011 Jiri Zarevucky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libposix
* @{
*/
/** @file Userspace context handling.
*/
#ifndef POSIX_UCONTEXT_H_
#define POSIX_UCONTEXT_H_
#include <sys/types.h>
#include <_bits/decls.h>
__C_DECLS_BEGIN;
typedef int sig_atomic_t;
typedef uint32_t sigset_t;
typedef struct mcontext {
/* must not be empty to avoid compiler warnings (-pedantic) */
int dummy;
} mcontext_t;
union sigval {
int sival_int;
void *sival_ptr;
};
struct sigevent {
int sigev_notify; /* Notification type. */
int sigev_signo; /* Signal number. */
union sigval sigev_value; /* Signal value. */
void (*sigev_notify_function)(union sigval); /* Notification function. */
thread_attr_t *sigev_notify_attributes; /* Notification attributes. */
};
typedef struct {
void *ss_sp;
size_t ss_size;
int ss_flags;
} stack_t;
typedef struct ucontext {
struct ucontext *uc_link;
sigset_t uc_sigmask;
stack_t uc_stack;
mcontext_t uc_mcontext;
} ucontext_t;
__C_DECLS_END;
#endif
/** @}
*/