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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-11-02 17:36:20 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-11-02 17:36:20 +0000 |
commit | ee979cdd95acb1a2bfa8b02f67d5386d3c8af5e3 (patch) | |
tree | 56f962a98a305c62c05ddace93be94aa17a3319c /c/src/exec/posix/src/psignalchecksignal.c | |
parent | Split mutex.c into multiple files. (diff) | |
download | rtems-ee979cdd95acb1a2bfa8b02f67d5386d3c8af5e3.tar.bz2 |
Split some more stuff out of psignal.c.
Diffstat (limited to 'c/src/exec/posix/src/psignalchecksignal.c')
-rw-r--r-- | c/src/exec/posix/src/psignalchecksignal.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/c/src/exec/posix/src/psignalchecksignal.c b/c/src/exec/posix/src/psignalchecksignal.c new file mode 100644 index 0000000000..f733994067 --- /dev/null +++ b/c/src/exec/posix/src/psignalchecksignal.c @@ -0,0 +1,90 @@ +/* + * $Id$ + */ + +#include <assert.h> +#include <errno.h> +#include <pthread.h> +#include <signal.h> + +#include <rtems/system.h> +#include <rtems/score/isr.h> +#include <rtems/score/thread.h> +#include <rtems/score/tqdata.h> +#include <rtems/score/wkspace.h> +#include <rtems/posix/seterr.h> +#include <rtems/posix/threadsup.h> +#include <rtems/posix/psignal.h> +#include <rtems/posix/pthread.h> +#include <rtems/posix/time.h> +#include <stdio.h> + + +/*PAGE + * + * _POSIX_signals_Check_signal + */ + +boolean _POSIX_signals_Check_signal( + POSIX_API_Control *api, + int signo, + boolean is_global +) +{ + siginfo_t siginfo_struct; + sigset_t saved_signals_blocked; + + if ( ! _POSIX_signals_Clear_signals( api, signo, &siginfo_struct, + is_global, TRUE ) ) + return FALSE; + + /* + * Since we made a union of these, only one test is necessary but this is + * safer. + */ + + assert( _POSIX_signals_Vectors[ signo ].sa_handler || + _POSIX_signals_Vectors[ signo ].sa_sigaction ); + + /* + * Just to prevent sending a signal which is currently being ignored. + */ + + if ( _POSIX_signals_Vectors[ signo ].sa_handler == SIG_IGN ) + return FALSE; + + /* + * Block the signals requested in sa_mask + */ + + saved_signals_blocked = api->signals_blocked; + api->signals_blocked |= _POSIX_signals_Vectors[ signo ].sa_mask; + + /* Here, the signal handler function executes */ + + switch ( _POSIX_signals_Vectors[ signo ].sa_flags ) { + case SA_SIGINFO: +/* + * + * assert( is_global ); + */ + (*_POSIX_signals_Vectors[ signo ].sa_sigaction)( + signo, + &siginfo_struct, + NULL /* context is undefined per 1003.1b-1993, p. 66 */ + ); + break; + default: + (*_POSIX_signals_Vectors[ signo ].sa_handler)( signo ); + break; + } + + /* + * Restore the previous set of blocked signals + */ + + api->signals_blocked = saved_signals_blocked; + + return TRUE; +} + |