| /* |
| * 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: |
| * |
| * sem_init returns -1 and sets errno to ENOSPC if the system lacks a resource |
| * or SEM_NSEMS_MAX has been reached. |
| |
| * The steps are: |
| * -> Try and sem_init SEM_NSEMS_MAX semaphores. |
| * -> Try and sem_init an additional semaphore. |
| |
| * The test fails if the last creation does not return an error. |
| |
| */ |
| |
| /* 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 <semaphore.h> |
| #include <errno.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 case ***********************************/ |
| /******************************************************************************/ |
| |
| /* The main test function. */ |
| int main(void) |
| { |
| int ret, i; |
| sem_t *sems; |
| sem_t sem_last; |
| |
| long max; |
| |
| /* Initialize output */ |
| output_init(); |
| |
| max = sysconf(_SC_SEM_NSEMS_MAX); |
| |
| if (max <= 0) { |
| output("sysconf(_SC_SEM_NSEMS_MAX) = %ld\n", max); |
| UNTESTED("There is no constraint on SEM_NSEMS_MAX"); |
| } |
| |
| sems = (sem_t *) calloc(max, sizeof(sem_t)); |
| |
| if (sems == NULL) { |
| UNRESOLVED(errno, "Failed to alloc space"); |
| } |
| |
| for (i = 0; i < max; i++) { |
| ret = sem_init(&sems[i], 0, 0); |
| |
| if (ret != 0) { |
| output |
| ("sem_init failed to initialize the %d nth semaphore.\n", |
| i); |
| output("Tryed to initialize %ld.\n", max); |
| output("Error is %d: %s\n", errno, strerror(errno)); |
| |
| for (; i > 0; i--) |
| sem_destroy(&sems[i - 1]); |
| |
| free(sems); |
| |
| PASSED; |
| } |
| } |
| |
| ret = sem_init(&sem_last, 0, 1); |
| |
| if (ret == 0) { |
| FAILED |
| ("We were able to sem_init more than SEM_NSEMS_MAX semaphores"); |
| } |
| |
| if (errno != ENOSPC) { |
| output("Error is %d: %s\n", errno, strerror(errno)); |
| } |
| |
| for (i = 0; i < max; i++) |
| sem_destroy(&sems[i]); |
| |
| free(sems); |
| |
| /* Test passed */ |
| #if VERBOSE > 0 |
| |
| output("Test passed\n"); |
| |
| #endif |
| |
| PASSED; |
| } |