testcases/realtime/func/pi-tests/testpi-5.c

   1 /******************************************************************************
   2  *
   3  *   Copyright © International Business Machines  Corp., 2008
   4  *
   5  *   This program is free software;  you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation; either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  13  *   the GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program;  if not, write to the Free Software
  17  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18  *
  19  * NAME
  20  *      testpi-5.c
  21  *
  22  * DESCRIPTION
  23  *
  24  *
  25  *
  26  * USAGE:
  27  *      Use run_auto.sh script in current directory to build and run test.
  28  *      Use "-j" to enable jvm simulator.
  29  *
  30  * AUTHOR
  31  *
  32  *
  33  * HISTORY
  34  *
  35  *
  36  *****************************************************************************/
  37
  38 #include <stdio.h>
  39 #include <pthread.h>
  40 #include <string.h>
  41 #include <unistd.h>
  42 #include <librttest.h>
  43 pthread_mutex_t  child_mutex;
  44
  45 void* child_thread (void* arg)
  46 {
  47     int ret;
  48
  49     ret = pthread_mutex_lock(&child_mutex);
  50     if (ret != 0)
  51         printf("child thread: Failed to lock child_mutex: %d\n", ret);
  52     else
  53         printf("child_thread: got lock\n");
  54
  55     sleep(2);
  56
  57     printf("child_thread: Trying to get lock 2nd time\n");
  58     ret = pthread_mutex_lock(&child_mutex);
  59     if (ret != 0)
  60         printf("child thread: Failed to lock child_mutex: %d\n", ret);
  61     else
  62         printf("child_thread: got lock 2nd time !!\n");
  63
  64     return NULL;
  65 }
  66
  67 int do_test(int argc, char ** argv)
  68 {
  69     pthread_mutexattr_t mutexattr;
  70     int retc, protocol;
  71
  72     if (pthread_mutexattr_init(&mutexattr) != 0) {
  73       printf("Failed to init mutexattr\n");
  74     };
  75     if (pthread_mutexattr_setprotocol(&mutexattr, PTHREAD_PRIO_INHERIT) != 0) {
  76       printf("Can't set protocol prio inherit\n");
  77     }
  78     if (pthread_mutexattr_getprotocol(&mutexattr, &protocol) != 0) {
  79       printf("Can't get mutexattr protocol\n");
  80     } else {
  81       printf("protocol in mutexattr is %d\n", protocol);
  82     }
  83     if ((retc = pthread_mutex_init(&child_mutex, &mutexattr)) != 0) {
  84       printf("Failed to init mutex: %d\n", retc);
  85     }
  86
  87     create_other_thread(child_thread, NULL);
  88     join_threads();
  89
  90     return 0;
  91 }
  92
  93 #include "test-skeleton.c"