| /* |
| * 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 stress test aims to test the following assertion: |
| |
| * Heavy cancelation does not break the system or the user application. |
| |
| * The steps are: |
| * Create some threads which: |
| * Create a thread. |
| * Cancel this thread, as it terminates. |
| * Check the return value. |
| |
| */ |
| |
| /* We are testing conformance to IEEE Std 1003.1, 2003 Edition */ |
| #define _POSIX_C_SOURCE 200112L |
| |
| /********************************************************************************************/ |
| /****************************** standard includes *****************************************/ |
| /********************************************************************************************/ |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <errno.h> |
| #include <signal.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 VERBOSE |
| #define VERBOSE 1 |
| #endif |
| |
| #define NTHREADS 30 |
| |
| /********************************************************************************************/ |
| /*********************************** Test cases *****************************************/ |
| /********************************************************************************************/ |
| |
| char do_it = 1; |
| |
| /* Handler for user request to terminate */ |
| void sighdl(int sig) |
| { |
| do { |
| do_it = 0; |
| } |
| while (do_it); |
| } |
| |
| long long canceled, ended; |
| |
| /* The canceled thread */ |
| void *th(void *arg) |
| { |
| int ret = 0; |
| ret = pthread_barrier_wait(arg); |
| |
| if ((ret != 0) && (ret != PTHREAD_BARRIER_SERIAL_THREAD)) { |
| UNRESOLVED(ret, "Failed to wait for the barrier"); |
| } |
| |
| return NULL; |
| } |
| |
| /* Thread function */ |
| void *threaded(void *arg) |
| { |
| int ret = 0; |
| pthread_t child; |
| |
| /* Initialize the barrier */ |
| ret = pthread_barrier_init(arg, NULL, 2); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to initialize a barrier"); |
| } |
| |
| while (do_it) { |
| /* Create the thread */ |
| ret = pthread_create(&child, NULL, th, arg); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Thread creation failed"); |
| } |
| |
| /* Synchronize */ |
| ret = pthread_barrier_wait(arg); |
| |
| if ((ret != 0) && (ret != PTHREAD_BARRIER_SERIAL_THREAD)) { |
| UNRESOLVED(ret, "Failed to wait for the barrier"); |
| } |
| |
| /* Cancel the thread */ |
| ret = pthread_cancel(child); |
| |
| if (ret == 0) |
| canceled++; |
| else |
| ended++; |
| |
| /* Join the thread */ |
| ret = pthread_join(child, NULL); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Unable to join the child"); |
| } |
| |
| } |
| |
| /* Destroy the barrier */ |
| ret = pthread_barrier_destroy(arg); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to destroy a barrier"); |
| } |
| |
| return NULL; |
| } |
| |
| /* Main function */ |
| int main(int argc, char *argv[]) |
| { |
| int ret = 0, i; |
| |
| struct sigaction sa; |
| |
| pthread_t th[NTHREADS]; |
| pthread_barrier_t b[NTHREADS]; |
| |
| /* Initialize output routine */ |
| output_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 |
| |
| for (i = 0; i < NTHREADS; i++) { |
| ret = pthread_create(&th[i], NULL, threaded, &b[i]); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to create a thread"); |
| } |
| } |
| |
| #if VERBOSE > 1 |
| output("[parent] All threads are running\n"); |
| |
| #endif |
| |
| /* Then join */ |
| for (i = 0; i < NTHREADS; i++) { |
| ret = pthread_join(th[i], NULL); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to join a thread"); |
| } |
| } |
| |
| /* We've been asked to stop */ |
| |
| output("pthread_cancel stress test PASSED\n"); |
| |
| output(" - %llu threads canceled\n", canceled); |
| |
| output(" - %llu threads ended\n", ended); |
| |
| PASSED; |
| } |