| /* |
| * Copyright (c) 2005, Bull S.A.. All rights reserved. |
| * Created by: Sebastien Decugis |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * This sample test aims to check the following assertion: |
| * |
| * The function does not return EINTR |
| * |
| * The steps are: |
| * -> kill a thread which calls pthread_join |
| * -> check that EINTR is never returned |
| */ |
| |
| #define _POSIX_C_SOURCE 200112L |
| |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <semaphore.h> |
| #include <errno.h> |
| #include <signal.h> |
| |
| #include "../testfrmw/testfrmw.h" |
| #include "../testfrmw/testfrmw.c" |
| |
| #ifndef VERBOSE |
| #define VERBOSE 1 |
| #endif |
| |
| #define WITH_SYNCHRO |
| |
| #include "../testfrmw/threads_scenarii.c" |
| |
| static char do_it1 = 1; |
| static char do_it2 = 1; |
| static unsigned long count_ope; |
| |
| #ifdef WITH_SYNCHRO |
| static sem_t semsig1; |
| static sem_t semsig2; |
| static unsigned long count_sig; |
| #endif |
| |
| sigset_t usersigs; |
| |
| struct thestruct { |
| int sig; |
| #ifdef WITH_SYNCHRO |
| sem_t *sem; |
| #endif |
| }; |
| |
| static void *sendsig(void *arg) |
| { |
| struct thestruct *thearg = (struct thestruct *)arg; |
| int ret; |
| pid_t process; |
| |
| process = getpid(); |
| |
| /* We block the signals SIGUSR1 and SIGUSR2 for this THREAD */ |
| ret = pthread_sigmask(SIG_BLOCK, &usersigs, NULL); |
| if (ret != 0) |
| UNRESOLVED(ret, "Unable to block SIGUSR1 and SIGUSR2 " |
| "in signal thread"); |
| |
| while (do_it1) { |
| #ifdef WITH_SYNCHRO |
| ret = sem_wait(thearg->sem); |
| if (ret) |
| UNRESOLVED(errno, "Sem_wait in sendsig"); |
| |
| count_sig++; |
| #endif |
| ret = kill(process, thearg->sig); |
| if (ret != 0) |
| UNRESOLVED(errno, "Kill in sendsig"); |
| } |
| |
| return NULL; |
| } |
| |
| /* Next are the signal handlers. */ |
| /* This one is registered for signal SIGUSR1 */ |
| static void sighdl1(int sig) |
| { |
| #ifdef WITH_SYNCHRO |
| if (sem_post(&semsig1)) |
| UNRESOLVED(errno, "Sem_post in signal handler 1"); |
| #endif |
| } |
| |
| /* This one is registered for signal SIGUSR2 */ |
| static void sighdl2(int sig) |
| { |
| #ifdef WITH_SYNCHRO |
| if (sem_post(&semsig2)) |
| UNRESOLVED(errno, "Sem_post in signal handler 2"); |
| #endif |
| } |
| |
| static void *threaded(void *arg) |
| { |
| sched_yield(); |
| return NULL; |
| } |
| |
| static void *test(void *arg) |
| { |
| int ret = 0; |
| pthread_t child; |
| |
| /* We don't block the signals SIGUSR1 and SIGUSR2 for this THREAD */ |
| ret = pthread_sigmask(SIG_UNBLOCK, &usersigs, NULL); |
| if (ret != 0) |
| UNRESOLVED(ret, "Unable to unblock SIGUSR1 and SIGUSR2 " |
| "in worker thread"); |
| |
| while (do_it2) { |
| for (sc = 0; sc < NSCENAR; sc++) { |
| if (scenarii[sc].detached == 1) |
| continue; |
| ret = pthread_create(&child, &scenarii[sc].ta, |
| threaded, NULL); |
| |
| if ((scenarii[sc].result == 0) && (ret != 0)) |
| UNRESOLVED(ret, "Failed to create this thread"); |
| |
| if ((scenarii[sc].result == 1) && (ret == 0)) |
| |
| UNRESOLVED(-1, "An error was expected but the " |
| "thread creation succeeded"); |
| |
| if (ret == 0) { |
| count_ope++; |
| |
| ret = pthread_join(child, NULL); |
| if (ret == EINTR) |
| FAILED("pthread_join returned EINTR"); |
| |
| if (ret != 0) |
| UNRESOLVED(ret, "Unable to join a " |
| "thread"); |
| |
| } |
| } |
| } |
| |
| return NULL; |
| } |
| |
| int main(void) |
| { |
| int ret; |
| pthread_t th_work, th_sig1, th_sig2; |
| struct thestruct arg1, arg2; |
| |
| struct sigaction sa; |
| |
| output_init(); |
| |
| sigemptyset(&sa.sa_mask); |
| sa.sa_flags = 0; |
| sa.sa_handler = sighdl1; |
| |
| ret = sigaction(SIGUSR1, &sa, NULL); |
| if (ret == -1) |
| UNRESOLVED(ret, "Unable to register signal handler1"); |
| |
| sa.sa_handler = sighdl2; |
| ret = sigaction(SIGUSR2, &sa, NULL); |
| if (ret == -1) |
| UNRESOLVED(ret, "Unable to register signal handler2"); |
| |
| /* We prepare a signal set which includes SIGUSR1 and SIGUSR2 */ |
| sigemptyset(&usersigs); |
| |
| ret = sigaddset(&usersigs, SIGUSR1); |
| ret |= sigaddset(&usersigs, SIGUSR2); |
| if (ret != 0) |
| UNRESOLVED(ret, "Unable to add SIGUSR1 or 2 to a signal set"); |
| |
| /* We now block the signals SIGUSR1 and SIGUSR2 for this THREAD */ |
| ret = pthread_sigmask(SIG_BLOCK, &usersigs, NULL); |
| if (ret != 0) |
| UNRESOLVED(ret, "Unable to block SIGUSR1 and SIGUSR2 " |
| "in main thread"); |
| |
| #ifdef WITH_SYNCHRO |
| if (sem_init(&semsig1, 0, 1)) |
| UNRESOLVED(errno, "Semsig1 init"); |
| |
| if (sem_init(&semsig2, 0, 1)) |
| UNRESOLVED(errno, "Semsig2 init"); |
| |
| #endif |
| |
| /* Initialize thread attribute objects */ |
| scenar_init(); |
| |
| ret = pthread_create(&th_work, NULL, test, NULL); |
| if (ret) |
| UNRESOLVED(ret, "Worker thread creation failed"); |
| |
| arg1.sig = SIGUSR1; |
| arg2.sig = SIGUSR2; |
| #ifdef WITH_SYNCHRO |
| arg1.sem = &semsig1; |
| arg2.sem = &semsig2; |
| #endif |
| |
| ret = pthread_create(&th_sig1, NULL, sendsig, (void *)&arg1); |
| if (ret) |
| UNRESOLVED(ret, "Signal 1 sender thread creation failed"); |
| |
| ret = pthread_create(&th_sig2, NULL, sendsig, (void *)&arg2); |
| if (ret) |
| UNRESOLVED(ret, "Signal 2 sender thread creation failed"); |
| |
| /* Now stop the threads and join them */ |
| do { |
| do_it1 = 0; |
| } while (do_it1); |
| |
| sleep(1); |
| |
| do { |
| do_it2 = 0; |
| } while (do_it2); |
| |
| ret = pthread_join(th_sig1, NULL); |
| if (ret) |
| UNRESOLVED(ret, "Signal 1 sender thread join failed"); |
| |
| ret = pthread_join(th_sig2, NULL); |
| if (ret) |
| UNRESOLVED(ret, "Signal 2 sender thread join failed"); |
| |
| ret = pthread_join(th_work, NULL); |
| if (ret) |
| UNRESOLVED(ret, "Worker thread join failed"); |
| |
| scenar_fini(); |
| |
| #if VERBOSE > 0 |
| output("Test executed successfully.\n"); |
| |
| output(" %d pthread_join calls.\n", count_ope); |
| |
| #ifdef WITH_SYNCHRO |
| output(" %d signals were sent meanwhile.\n", count_sig); |
| |
| #endif |
| #endif |
| PASSED; |
| } |