Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/s/sigsuspend.html on line 1
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/s/sigsuspend.html on line 1
Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/s/sigsuspend.html on line 8
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/s/sigsuspend.html on line 8
Replace the signal mask, and then suspend the thread
#include <signal.h>
int sigsuspend( const sigset_t *sigmask );
- sigmask
- A pointer to a sigset_t object that specifies the
signals that you want in the thread's signal mask.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The sigsuspend() function
replaces the thread's signal mask with the set of signals pointed to
by sigmask and then suspends the thread until delivery of a signal
whose action is either to execute a signal-catching function (then
return), or to terminate the thread.
-1 (if the function returns);
errno
is set.
- EFAULT
- A fault occurred trying to access the buffers provided.
- EINTR
- A signal was caught by the calling thread, and control is returned
from the signal-catching function.
/*
* This program pauses until a signal other than
* a SIGINT occurs. In this case a SIGALRM.
*/
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
sigset_t set;
int main( void )
{
sigemptyset( &set );
sigaddset( &set, SIGINT );
printf( "Program suspended and immune to breaks.\n" );
printf( "A SIGALRM will terminate the program"
" in 10 seconds.\n" );
alarm( 10 );
sigsuspend( &set );
return( EXIT_SUCCESS );
}
POSIX 1003.1
Safety: | |
Cancellation point |
Yes |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
pause(),
pthread_sigmask(),
sigaction(),
sigpending(),
sigprocmask()
Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/s/sigsuspend.html on line 162
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/s/sigsuspend.html on line 162