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/*
* @brief psxsignal08 - Ensure initial signal mask and Classic Task inheritance
*/
/*
* COPYRIGHT (c) 2019.
* On-Line Applications Research Corporation (OAR).
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tmacros.h>
#include "test_support.h"
#include <errno.h>
#include <signal.h>
#include <unistd.h>
#include <rtems.h>
const char rtems_test_name[] = "PSXSIGNAL 8";
static sigset_t main_sigmask;
#define SIGSET_NBYTES (sizeof(sigset_t))
/* #define DEBUG_TEST */
static void fetch_sigmask(const char *name, sigset_t *sigset_p)
{
int rc;
rc = sigemptyset(sigset_p);
rtems_test_assert(rc == 0);
rc = sigprocmask(SIG_SETMASK, NULL, sigset_p);
rtems_test_assert(rc == 0);
#ifdef DEBUG_TEST
/*
* There is no assurance that sigset_t is a primitive type so
* we have to print it a long at a time.
*/
int i;
unsigned char *p = (unsigned char *) sigset_p;
printf("%s signal mask (in hex):\n ", name);
for (i=0 ; i < SIGSET_NBYTES ; i++) {
printf("%02x%s", *p++, (i % 16 == 15) ? "\n " : " ");
}
printf("\n");
#endif
}
static void block_sigmask(int signo, sigset_t *sigset_p)
{
sigset_t sigset;
int rc;
/*
* Block the requested signal
*/
rc = sigemptyset(&sigset);
rtems_test_assert(rc == 0);
rc = sigaddset(&sigset, signo);
rtems_test_assert(rc == 0);
rc = sigprocmask(SIG_BLOCK, &sigset, NULL);
rtems_test_assert(rc == 0);
/*
* Fetch the current signal mask reflecting the requested update
*/
sigemptyset(sigset_p);
rc = sigprocmask(SIG_SETMASK, NULL, sigset_p);
rtems_test_assert(rc == 0);
}
static rtems_task task_body(rtems_task_argument arg)
{
sigset_t mask;
/*
* There is no assurance that sigset_t is a primitive type so
* we have to use memcmp().
*/
fetch_sigmask("main", &main_sigmask);
fetch_sigmask((void *)arg, &mask);
rtems_test_assert(main_sigmask == mask);
(void) rtems_task_delete(RTEMS_SELF);
}
int main(int argc, char **argv)
{
sigset_t empty;
rtems_status_code status;
rtems_id id;
TEST_BEGIN();
/*
* Verify first task has empty signal mask
*/
fetch_sigmask("main", &main_sigmask);
sigemptyset(&empty);
fetch_sigmask("empty", &empty);
puts("Ensure main task's mask equals sigemptyset");
rtems_test_assert(main_sigmask == empty);
/*
* Create a task and see if it inherits empty signal mask.
*/
puts("Ensure parent's empty mask is inherited by thread");
status = rtems_task_create(
rtems_build_name( 'T', 'A', '1', ' ' ),
1,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&id
);
directive_failed( status, "rtems_task_create" );
status = rtems_task_start( id, task_body, 1 );
directive_failed( status, "rtems_task_start" );
sleep(1);
/*
* Create a task and see if it inherits non-empty signal mask.
*/
puts("Ensure parent's mask with SIGUSR1 mask is inherited by thread");
block_sigmask(SIGUSR1, &main_sigmask);
status = rtems_task_create(
rtems_build_name( 'T', 'A', '1', ' ' ),
1,
RTEMS_MINIMUM_STACK_SIZE,
RTEMS_DEFAULT_MODES,
RTEMS_DEFAULT_ATTRIBUTES,
&id
);
directive_failed( status, "rtems_task_create" );
status = rtems_task_start( id, task_body, 1 );
directive_failed( status, "rtems_task_start" );
sleep(1);
TEST_END();
rtems_test_exit(0);
return 0;
}
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