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/**
* @file rtems/posix/psignal.h
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _RTEMS_POSIX_PSIGNAL_H
#define _RTEMS_POSIX_PSIGNAL_H
#include <rtems/posix/pthread.h>
/*
* Currently 32 signals numbered 1-32 are defined
*/
#define SIGNAL_EMPTY_MASK 0x00000000
#define SIGNAL_ALL_MASK 0xffffffff
#define signo_to_mask( _sig ) (1 << ((_sig) - 1))
#define is_valid_signo( _sig ) \
((_sig) >= 1 && (_sig) <= 32 )
#define _States_Is_interruptible_signal( _states ) \
( ((_states) & \
(STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL)) == \
(STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL))
#define SIGACTION_TERMINATE \
{ 0, SIGNAL_ALL_MASK, {_POSIX_signals_Abnormal_termination_handler} }
#define SIGACTION_IGNORE \
{ 0, SIGNAL_ALL_MASK, {SIG_IGN} }
#define SIGACTION_STOP \
{ 0, SIGNAL_ALL_MASK, {_POSIX_signals_Stop_handler} }
#define SIGACTION_CONTINUE \
{ 0, SIGNAL_ALL_MASK, {_POSIX_signals_Continue_handler} }
#define SIG_ARRAY_MAX (SIGRTMAX + 1)
/*
* Variables
*/
extern sigset_t _POSIX_signals_Pending;
extern struct sigaction _POSIX_signals_Default_vectors[ SIG_ARRAY_MAX ];
extern struct sigaction _POSIX_signals_Vectors[ SIG_ARRAY_MAX ];
extern Watchdog_Control _POSIX_signals_Alarm_timer;
extern Thread_queue_Control _POSIX_signals_Wait_queue;
extern Chain_Control _POSIX_signals_Inactive_siginfo;
extern Chain_Control _POSIX_signals_Siginfo[ SIG_ARRAY_MAX ];
/*
* POSIX internal siginfo structure
*/
typedef struct {
Chain_Node Node;
siginfo_t Info;
} POSIX_signals_Siginfo_node;
/*
* Internal routines
*/
void _POSIX_signals_Manager_Initialization(
int maximum_queued_signals
);
void _POSIX_signals_Post_switch_extension(
Thread_Control *the_thread
);
boolean _POSIX_signals_Unblock_thread(
Thread_Control *the_thread,
int signo,
siginfo_t *info
);
boolean _POSIX_signals_Check_signal(
POSIX_API_Control *api,
int signo,
boolean is_global
);
boolean _POSIX_signals_Clear_signals(
POSIX_API_Control *api,
int signo,
siginfo_t *info,
boolean is_global,
boolean check_blocked
);
int killinfo(
pid_t pid,
int sig,
const union sigval *value
);
void _POSIX_signals_Set_process_signals(
sigset_t mask
);
void _POSIX_signals_Clear_process_signals(
sigset_t mask
);
/*
* Default signal handlers
*/
#define _POSIX_signals_Stop_handler NULL
#define _POSIX_signals_Continue_handler NULL
void _POSIX_signals_Abnormal_termination_handler( int signo );
#endif
/* end of file */
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