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/**
* @file
*
* @brief POSIX Signals Support
*
* This include file defines internal information about POSIX signals.
*/
/*
* COPYRIGHT (c) 1989-2013.
* 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.
*/
#ifndef _RTEMS_POSIX_PSIGNALIMPL_H
#define _RTEMS_POSIX_PSIGNALIMPL_H
/**
* @defgroup POSIX_SIGNALS POSIX Signals Support
*
* @ingroup POSIXAPI
*
* @brief Internal Information about POSIX Signals
*
*/
/**@{**/
#include <rtems/posix/psignal.h>
#include <rtems/posix/pthread.h>
#include <rtems/posix/sigset.h>
#include <rtems/score/apiext.h>
#include <rtems/score/isrlock.h>
#include <rtems/score/threadq.h>
#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 ISR_lock_Control _POSIX_signals_Lock;
extern sigset_t _POSIX_signals_Pending;
extern const struct sigaction _POSIX_signals_Default_vectors[ SIG_ARRAY_MAX ];
extern struct sigaction _POSIX_signals_Vectors[ SIG_ARRAY_MAX ];
extern Thread_queue_Control _POSIX_signals_Wait_queue;
extern Chain_Control _POSIX_signals_Inactive_siginfo;
extern Chain_Control _POSIX_signals_Siginfo[ SIG_ARRAY_MAX ];
extern API_extensions_Post_switch_control _POSIX_signals_Post_switch;
/*
* Internal routines
*/
/**
* @brief POSIX signals manager initialization.
*/
void _POSIX_signals_Manager_Initialization(void);
#define _POSIX_signals_Acquire( lock_context ) \
_ISR_lock_ISR_disable_and_acquire( &_POSIX_signals_Lock, lock_context )
#define _POSIX_signals_Release( lock_context ) \
_ISR_lock_Release_and_ISR_enable( &_POSIX_signals_Lock, lock_context )
static inline void _POSIX_signals_Add_post_switch_extension(void)
{
_API_extensions_Add_post_switch( &_POSIX_signals_Post_switch );
}
/**
* @brief Unlock POSIX signals thread.
*/
bool _POSIX_signals_Unblock_thread(
Thread_Control *the_thread,
int signo,
siginfo_t *info
);
/**
* @brief Check POSIX signal.
*/
bool _POSIX_signals_Check_signal(
POSIX_API_Control *api,
int signo,
bool is_global
);
/**
* @brief Clear POSIX signals.
*/
bool _POSIX_signals_Clear_signals(
POSIX_API_Control *api,
int signo,
siginfo_t *info,
bool is_global,
bool check_blocked,
bool do_signals_acquire_release
);
int killinfo(
pid_t pid,
int sig,
const union sigval *value
);
/**
* @brief Set POSIX process signals.
*/
void _POSIX_signals_Set_process_signals(
sigset_t mask
);
void _POSIX_signals_Clear_process_signals(
int signo
);
/*
* 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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