| /* |
| * 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 sample test aims to check the following assertion: |
| * |
| * pthread_create creates a new thread within the process |
| |
| * The steps are: |
| * |
| * -> get the thread ID and the process ID of the main thread. |
| * -> create a new thread, get the thread & process ID. |
| * -> check that the thread IDs are different but process IDs are the same |
| |
| * The test fails if the thread IDs are the same or the proces IDs are different. |
| |
| */ |
| |
| /* We are testing conformance to IEEE Std 1003.1, 2003 Edition */ |
| #define _POSIX_C_SOURCE 200112L |
| |
| /* Some routines are part of the XSI Extensions */ |
| #ifndef WITHOUT_XOPEN |
| #define _XOPEN_SOURCE 600 |
| #endif |
| /********************************************************************************************/ |
| /****************************** standard includes *****************************************/ |
| /********************************************************************************************/ |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <sched.h> |
| #include <semaphore.h> |
| #include <errno.h> |
| #include <assert.h> |
| /********************************************************************************************/ |
| /****************************** Test framework *****************************************/ |
| /********************************************************************************************/ |
| #include "../testfrmw/testfrmw.h" |
| #include "../testfrmw/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 |
| |
| /********************************************************************************************/ |
| /*********************************** Test cases *****************************************/ |
| /********************************************************************************************/ |
| |
| #include "../testfrmw/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 *****************************************/ |
| /********************************************************************************************/ |
| |
| struct testdata { |
| pthread_t tid; |
| pid_t pid; |
| sem_t *sem; |
| }; |
| |
| int global; /* This value is used to check both threads share the same process memory (and not a copy) */ |
| |
| void *threaded(void *arg) |
| { |
| struct testdata *td = (struct testdata *)arg; |
| pthread_t mytid; |
| pid_t mypid; |
| int ret = 0; |
| |
| /* Compare the process IDs */ |
| mypid = getpid(); |
| #if VERBOSE > 0 |
| output(" Main pid: %i thread pid: %i\n", td->pid, mypid); |
| #endif |
| |
| if (mypid != td->pid) { |
| FAILED |
| ("New thread does not belong to the same process as its parent thread"); |
| } |
| |
| /* Compare the threads IDs */ |
| mytid = pthread_self(); |
| #if VERBOSE > 0 |
| /* pthread_t is a pointer with Linux/nptl. This output can be erroneous for other arcs */ |
| output(" Main tid: %p thread tid: %p\n", td->tid, mytid); |
| #endif |
| |
| if (pthread_equal(mytid, td->tid) != 0) { |
| FAILED |
| ("The created thread has the same thread ID as its parent"); |
| } |
| |
| /* Change the global value */ |
| global ++; |
| |
| /* Post the semaphore to unlock the main thread in case of a detached thread */ |
| do { |
| ret = sem_post(td->sem); |
| } |
| while ((ret == -1) && (errno == EINTR)); |
| if (ret == -1) { |
| UNRESOLVED(errno, "Failed to post the semaphore"); |
| } |
| |
| return arg; |
| } |
| |
| int main(void) |
| { |
| int ret = 0; |
| struct testdata td; |
| void *rval; |
| pthread_t child; |
| int i; |
| |
| output_init(); |
| |
| td.tid = pthread_self(); |
| td.pid = getpid(); |
| |
| scenar_init(); |
| |
| for (i = 0; i < NSCENAR; i++) { |
| #if VERBOSE > 0 |
| output("-----\n"); |
| output("Starting test with scenario (%i): %s\n", i, |
| scenarii[i].descr); |
| #endif |
| |
| td.sem = &scenarii[i].sem; |
| |
| global = 2 * i; |
| |
| ret = pthread_create(&child, &scenarii[i].ta, threaded, &td); |
| switch (scenarii[i].result) { |
| case 0: /* Operation was expected to succeed */ |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to create this thread"); |
| } |
| break; |
| |
| case 1: /* Operation was expected to fail */ |
| if (ret == 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 > 0 |
| if (ret == 0) { |
| output |
| ("Thread has been created successfully for this scenario\n"); |
| } else { |
| output |
| ("Thread creation failed with the error: %s\n", |
| strerror(ret)); |
| } |
| #endif |
| } |
| if (ret == 0) { /* The new thread is running */ |
| if (scenarii[i].detached == 0) { |
| ret = pthread_join(child, &rval); |
| if (ret != 0) { |
| UNRESOLVED(ret, |
| "Unable to join a thread"); |
| } |
| |
| if (rval != &td) { |
| FAILED |
| ("Could not get the thread return value. Did it execute?"); |
| } |
| } else { |
| /* Just wait for the thread terminate */ |
| do { |
| ret = sem_wait(td.sem); |
| } |
| while ((ret == -1) && (errno == EINTR)); |
| if (ret == -1) { |
| UNRESOLVED(errno, |
| "Failed to post the semaphore"); |
| } |
| } |
| |
| if (global !=(2 * i + 1)) { |
| /* Maybe a possible issue with CPU memory-caching here? */ |
| FAILED |
| ("The threads do not share the same process memory."); |
| } |
| } |
| } |
| |
| scenar_fini(); |
| #if VERBOSE > 0 |
| output("-----\n"); |
| output("All test data destroyed\n"); |
| output("Test PASSED\n"); |
| #endif |
| |
| PASSED; |
| } |