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/*
* @brief psxsignal07 - Ensure initial signal mask and thread 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 <pthread.h>
#include <signal.h>
const char rtems_test_name[] = "PSXSIGNAL 7";
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 void *thread_body(void *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(arg, &mask);
rtems_test_assert(main_sigmask == mask);
return NULL;
}
int main(int argc, char **argv)
{
int rc;
pthread_t id;
sigset_t empty;
TEST_BEGIN();
/*
* Verify first thread has empty signal mask
*/
fetch_sigmask("main", &main_sigmask);
sigemptyset(&empty);
fetch_sigmask("empty", &empty);
puts("Ensure main thread's mask equals sigemptyset");
rtems_test_assert(main_sigmask == empty);
/*
* Verify first thread has empty signal mask
*/
puts("Ensure parent's empty mask is inherited by thread");
rc = pthread_create(&id, NULL, thread_body, "thread1");
rtems_test_assert(rc == 0);
sleep(1);
/*
* Create a thread 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);
rc = pthread_create(&id, NULL, thread_body, "thread2");
rtems_test_assert(rc == 0);
sleep(1);
TEST_END();
rtems_test_exit(0);
return 0;
}
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