| /* |
| * Copyright (c) 2004, 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 file is a stress test for the function pthread_exit. |
| * |
| * It aims to check that: |
| * -> when the threads are joinable, pthread_join always retrieve the |
| * correct value. |
| * -> pthread_exit() frees all the resources used by the threads. |
| * |
| * The second assertion is implicitly checked by monitoring the system |
| * while the stress test is running. |
| * |
| */ |
| |
| /* We are testing conformance to IEEE Std 1003.1, 2003 Edition */ |
| #define _POSIX_C_SOURCE 200112L |
| |
| /* We need the XSI extention for some routines */ |
| #ifndef WITHOUT_XOPEN |
| #define _XOPEN_SOURCE 600 |
| #endif |
| /********************************************************************************************/ |
| /****************************** standard includes *****************************************/ |
| /********************************************************************************************/ |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| |
| #include <errno.h> |
| #include <signal.h> |
| #include <semaphore.h> |
| |
| /********************************************************************************************/ |
| /****************************** Test framework *****************************************/ |
| /********************************************************************************************/ |
| #include "testfrmw.h" |
| #include "testfrmw.c" |
| /* This header is responsible for defining the following macros: |
| * UNRESOLVED(ret, descr); |
| * where descr is a description of the error and ret is an int (error code for example) |
| * FAILED(descr); |
| * where descr is a short text saying why the test has failed. |
| * PASSED(); |
| * No parameter. |
| * |
| * Both three macros shall terminate the calling process. |
| * The testcase shall not terminate in any other maneer. |
| * |
| * The other file defines the functions |
| * void output_init() |
| * void output(char * string, ...) |
| * |
| * Those may be used to output information. |
| */ |
| |
| /********************************************************************************************/ |
| /********************************** Configuration ******************************************/ |
| /********************************************************************************************/ |
| #ifndef SCALABILITY_FACTOR |
| #define SCALABILITY_FACTOR 1 |
| #endif |
| #ifndef VERBOSE |
| #define VERBOSE 1 |
| #endif |
| |
| #define FACTOR 5 |
| |
| /* This testcase needs the XSI features */ |
| #ifndef WITHOUT_XOPEN |
| /********************************************************************************************/ |
| /*********************************** Test case *****************************************/ |
| /********************************************************************************************/ |
| |
| #include "threads_scenarii.c" |
| |
| /* This file will define the following objects: |
| * scenarii: array of struct __scenario type. |
| * NSCENAR : macro giving the total # of scenarii |
| * scenar_init(): function to call before use the scenarii array. |
| * scenar_fini(): function to call after end of use of the scenarii array. |
| */ |
| |
| /********************************************************************************************/ |
| /*********************************** Real Test *****************************************/ |
| /********************************************************************************************/ |
| |
| char do_it = 1; |
| long long iterations = 0; |
| |
| /* Handler for user request to terminate */ |
| void sighdl(int sig) |
| { |
| /* do_it = 0 */ |
| do { |
| do_it = 0; |
| } |
| while (do_it); |
| } |
| |
| /* Cleanup handler to make sure the thread is exiting */ |
| void cleanup(void *arg) |
| { |
| int ret = 0; |
| sem_t *sem = (sem_t *) arg; |
| |
| /* Signal we're done (especially in case of a detached thread) */ |
| do { |
| ret = sem_post(sem); |
| } |
| while ((ret == -1) && (errno == EINTR)); |
| if (ret == -1) { |
| UNRESOLVED(errno, "Failed to wait for the semaphore"); |
| } |
| } |
| |
| /* Thread routine */ |
| void *threaded(void *arg) |
| { |
| pthread_cleanup_push(cleanup, &scenarii[sc].sem); |
| |
| pthread_exit(arg); |
| FAILED("the pthread_exit routine returned"); |
| |
| pthread_cleanup_pop(1); |
| |
| return NULL; /* For the sake of compiler */ |
| } |
| |
| /* main routine */ |
| int main(int argc, char *argv[]) |
| { |
| int ret, i; |
| void *rval; |
| struct sigaction sa; |
| |
| pthread_t threads[NSCENAR * SCALABILITY_FACTOR * FACTOR]; |
| int rets[NSCENAR * SCALABILITY_FACTOR * FACTOR]; |
| |
| /* Initialize output */ |
| output_init(); |
| |
| /* Initialize scenarii table */ |
| scenar_init(); |
| |
| /* Register the signal handler for SIGUSR1 */ |
| sigemptyset(&sa.sa_mask); |
| sa.sa_flags = 0; |
| sa.sa_handler = sighdl; |
| if ((ret = sigaction(SIGUSR1, &sa, NULL))) { |
| UNRESOLVED(ret, "Unable to register signal handler"); |
| } |
| if ((ret = sigaction(SIGALRM, &sa, NULL))) { |
| UNRESOLVED(ret, "Unable to register signal handler"); |
| } |
| #if VERBOSE > 1 |
| output("[parent] Signal handler registered\n"); |
| #endif |
| |
| while (do_it) { |
| /* Create all the threads */ |
| for (i = 0; i < SCALABILITY_FACTOR * FACTOR; i++) { |
| for (sc = 0; sc < NSCENAR; sc++) { |
| /* Skip the alternative stack threads */ |
| if (scenarii[sc].altstack != 0) |
| continue; |
| |
| rets[i * NSCENAR + sc] = |
| pthread_create(&threads[i * NSCENAR + sc], |
| &scenarii[sc].ta, threaded, |
| &threads[i * NSCENAR + sc]); |
| switch (scenarii[sc].result) { |
| case 0: /* Operation was expected to succeed */ |
| if (rets[i * NSCENAR + sc] != 0) { |
| UNRESOLVED(rets |
| [i * NSCENAR + sc], |
| "Failed to create this thread"); |
| } |
| break; |
| |
| case 1: /* Operation was expected to fail */ |
| if (rets[i * NSCENAR + sc] == 0) { |
| UNRESOLVED(-1, |
| "An error was expected but the thread creation succeeded"); |
| } |
| break; |
| |
| case 2: /* We did not know the expected result */ |
| default: |
| #if VERBOSE > 5 |
| if (rets[i * NSCENAR + sc] == 0) { |
| output |
| ("Thread has been created successfully for this scenario\n"); |
| } else { |
| output |
| ("Thread creation failed with the error: %s\n", |
| strerror(rets |
| [i * NSCENAR + |
| sc])); |
| } |
| #endif |
| ; |
| } |
| if (rets[i * NSCENAR + sc] == 0) { |
| /* Just wait for the thread to terminate */ |
| do { |
| ret = |
| sem_wait(&scenarii[sc].sem); |
| } |
| while ((ret == -1) && (errno == EINTR)); |
| if (ret == -1) { |
| UNRESOLVED(errno, |
| "Failed to wait for the semaphore"); |
| } |
| } |
| } |
| } |
| |
| /* Join all the joinable threads and check the value */ |
| for (i = 0; i < SCALABILITY_FACTOR * FACTOR; i++) { |
| for (sc = 0; sc < NSCENAR; sc++) { |
| if ((scenarii[sc].altstack == 0) |
| && (scenarii[sc].detached == 0) |
| && (rets[i * NSCENAR + sc] == 0)) { |
| ret = |
| pthread_join(threads |
| [i * NSCENAR + sc], |
| &rval); |
| if (ret != 0) { |
| UNRESOLVED(ret, |
| "Unable to join a thread"); |
| } |
| |
| if (rval != |
| (void *)&threads[i * NSCENAR + |
| sc]) { |
| output |
| ("arg: %p -- got %p -- NULL=%p\n", |
| &threads[i * NSCENAR + sc], |
| rval, NULL); |
| FAILED |
| ("The retrieved error value is corrupted"); |
| } |
| } |
| } |
| } |
| |
| iterations++; |
| } |
| |
| /* Destroy scenarii attributes */ |
| scenar_fini(); |
| |
| /* Test passed */ |
| output("pthread_exit stress test PASSED -- %llu iterations\n", |
| iterations); |
| PASSED; |
| } |
| |
| #else /* WITHOUT_XOPEN */ |
| int main(int argc, char *argv[]) |
| { |
| output_init(); |
| UNTESTED("This test requires XSI features"); |
| } |
| #endif |