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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [tests/] [psxtests/] [psx03/] [init.c] - Rev 552
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/* * COPYRIGHT (c) 1989-1999. * 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.OARcorp.com/rtems/license.html. * * $Id: init.c,v 1.2 2001-09-27 12:02:23 chris Exp $ */ #define CONFIGURE_INIT #include "system.h" #include <signal.h> #include <errno.h> volatile int Signal_occurred; volatile int Signal_count; void Signal_handler( int signo ) { Signal_count++; printf( "Signal: %d caught by 0x%x (%d)\n", signo, pthread_self(), Signal_count ); Signal_occurred = 1; } void *POSIX_Init( void *argument ) { int status; struct timespec timeout; struct sigaction act; sigset_t mask; sigset_t waitset; int signo; siginfo_t siginfo; puts( "\n\n*** POSIX TEST 3 ***" ); /* set the time of day, and print our buffer in multiple ways */ set_time( TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 ); /* get id of this thread */ Init_id = pthread_self(); printf( "Init's ID is 0x%08x\n", Init_id ); /* install a signal handler */ status = sigemptyset( &act.sa_mask ); assert( !status ); act.sa_handler = Signal_handler; act.sa_flags = 0; sigaction( SIGUSR1, &act, NULL ); /* initialize signal handler variables */ Signal_count = 0; Signal_occurred = 0; /* * wait on SIGUSR1 for 3 seconds, will timeout */ /* initialize the signal set we will wait for to SIGUSR1 */ status = sigemptyset( &waitset ); assert( !status ); status = sigaddset( &waitset, SIGUSR1 ); assert( !status ); timeout.tv_sec = 3; timeout.tv_nsec = 0; puts( "Init: waiting on any signal for 3 seconds." ); signo = sigtimedwait( &waitset, &siginfo, &timeout ); assert( signo == -1 ); if ( errno == EAGAIN ) puts( "Init: correctly timed out waiting for SIGUSR1." ); else printf( "sigtimedwait returned wrong errno - %d\n", errno ); Signal_occurred = 0; /* * wait on SIGUSR1 for 3 seconds, will timeout because Task_1 sends SIGUSR2 */ empty_line(); /* initialize a mask to block SIGUSR2 */ status = sigemptyset( &mask ); assert( !status ); status = sigaddset( &mask, SIGUSR2 ); assert( !status ); printf( "Init: Block SIGUSR2\n" ); status = sigprocmask( SIG_BLOCK, &mask, NULL ); assert( !status ); /* create a thread */ status = pthread_create( &Task_id, NULL, Task_1, NULL ); assert( !status ); /* signal handler is still installed, waitset is still set for SIGUSR1 */ timeout.tv_sec = 3; timeout.tv_nsec = 0; puts( "Init: waiting on any signal for 3 seconds." ); signo = sigtimedwait( &waitset, &siginfo, &timeout ); /* switch to Task 1 */ if ( errno == EAGAIN ) puts( "Init: correctly timed out waiting for SIGUSR1." ); else printf( "sigtimedwait returned wrong errno - %d\n", errno ); assert( signo == -1 ); /* * wait on SIGUSR1 for 3 seconds, Task_2 will send it to us */ empty_line(); /* create a thread */ status = pthread_create( &Task_id, NULL, Task_2, NULL ); assert( !status ); /* signal handler is still installed, waitset is still set for SIGUSR1 */ /* wait on SIGUSR1 for 3 seconds, will receive SIGUSR1 from Task_2 */ timeout.tv_sec = 3; timeout.tv_nsec = 0; /* just so we can check that these were altered */ siginfo.si_code = -1; siginfo.si_signo = -1; siginfo.si_value.sival_int = -1; puts( "Init: waiting on any signal for 3 seconds." ); signo = sigtimedwait( &waitset, &siginfo, &timeout ); printf( "Init: received (%d) SIGUSR1=%d\n", siginfo.si_signo, SIGUSR1 ); assert( signo == SIGUSR1 ); assert( siginfo.si_signo == SIGUSR1 ); assert( siginfo.si_code == SI_USER ); assert( siginfo.si_value.sival_int != -1 ); /* rtems does always set this */ /* try out a process signal */ empty_line(); puts( "Init: kill with SIGUSR2." ); status = kill( getpid(), SIGUSR2 ); assert( !status ); siginfo.si_code = -1; siginfo.si_signo = -1; siginfo.si_value.sival_int = -1; status = sigemptyset( &waitset ); assert( !status ); status = sigaddset( &waitset, SIGUSR1 ); assert( !status ); status = sigaddset( &waitset, SIGUSR2 ); assert( !status ); puts( "Init: waiting on any signal for 3 seconds." ); signo = sigtimedwait( &waitset, &siginfo, &timeout ); printf( "Init: received (%d) SIGUSR2=%d\n", siginfo.si_signo, SIGUSR2 ); assert( signo == SIGUSR2 ); assert( siginfo.si_signo == SIGUSR2 ); assert( siginfo.si_code == SI_USER ); assert( siginfo.si_value.sival_int != -1 ); /* rtems does always set this */ /* exit this thread */ puts( "*** END OF POSIX TEST 3 ***" ); exit( 0 ); return NULL; /* just so the compiler thinks we returned something */ }
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