forked from Imagelibrary/rtems
34484311b0
PR 1855/cpukit * Makefile.am, configure.ac, psx16/Makefile.am: Correct signal processing during pthread_join. We are supposed to unblock the thread waiting on a pthread_join(), dispatch the signal handler, account for it potentially overwriting errno, and then have the thread return to blocking within pthread_join(). * psxeintr_join/.cvsignore, psxeintr_join/Makefile.am, psxeintr_join/init.c, psxeintr_join/psxeintr_join.doc, psxeintr_join/psxeintr_join.scn: New files.
126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
/*
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* COPYRIGHT (c) 1989-2011.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include <stdio.h>
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#include <signal.h>
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#include <semaphore.h>
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#include <pthread.h>
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#include <rtems.h>
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#include <tmacros.h>
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#include "test_support.h"
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#define SIG_SUSPEND SIGUSR1
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#define SIG_THR_RESTART SIGUSR2
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sem_t GC_suspend_ack_sem;
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static void print_sig_mask( const char * str )
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{
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sigset_t blocked;
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int i;
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int status;
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status = pthread_sigmask( SIG_BLOCK, NULL, &blocked );
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rtems_test_assert( status == 0 );
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printf( "%s blocked:\n", str );
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for ( i = 1; i < NSIG; i++) {
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if ( sigismember( &blocked, i ) )
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printf( "%d ", i );
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}
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printf( "\n" );
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}
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void GC_suspend_handler( int sig )
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{
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puts( "run in GC_suspend_handler" );
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sem_post( &GC_suspend_ack_sem );
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}
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void GC_restart_handler( int sig )
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{
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puts( "run in GC_restart_handler" );
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}
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void* run( void *arg )
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{
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int status;
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pthread_t id = *(pthread_t *)arg;
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print_sig_mask( "New Thread" );
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status = pthread_kill( id, SIG_SUSPEND );
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rtems_test_assert( status == 0 );
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puts( "New Thread: after pthread_kill" );
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status = sem_wait( &GC_suspend_ack_sem );
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rtems_test_assert( status == 0 );
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puts( "New Thread over!" );
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return NULL;
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}
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void *POSIX_Init( void *arg )
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{
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struct sigaction act;
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pthread_t newThread;
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pthread_t mainThread;
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int status;
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puts( "*** POSIX TEST PSXEINTR_JOIN ***" );
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status = sem_init( &GC_suspend_ack_sem, 0, 0);
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rtems_test_assert( status == 0 );
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status = sigemptyset( &act.sa_mask );
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rtems_test_assert( status == 0 );
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status = sigaddset( &act.sa_mask, SIG_SUSPEND );
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rtems_test_assert( status == 0 );
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status = pthread_sigmask( SIG_UNBLOCK, &act.sa_mask, NULL );
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rtems_test_assert( status == 0 );
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act.sa_handler = GC_suspend_handler;
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status = sigaction( SIG_SUSPEND, &act, NULL );
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rtems_test_assert( status == 0 );
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act.sa_handler = GC_restart_handler;
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print_sig_mask( "Main Thread" );
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mainThread = pthread_self();
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status = pthread_create( &newThread, NULL, run, &mainThread );
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rtems_test_assert( status == 0 );
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pthread_join( newThread, NULL );
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puts( "Back from pthread_join" );
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puts( "*** END OF POSIX TEST PSXEINTR_JOIN ***" );
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rtems_test_exit( 0 );
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return NULL;
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}
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/* configuration information */
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#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
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#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
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#define CONFIGURE_POSIX_INIT_THREAD_TABLE
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#define CONFIGURE_MAXIMUM_POSIX_THREADS 2
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#define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES 1
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#define CONFIGURE_INIT
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#include <rtems/confdefs.h>
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/* end of file */
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