100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/******************************************************************************
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*
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* Copyright © International Business Machines Corp., 2008
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* NAME
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* testpi-5.c
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*
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* DESCRIPTION
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* This testcase verifies if a thread can lock the priority inheritance
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* mutex multiple times.
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*
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* USAGE:
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* Use run_auto.sh script in current directory to build and run test.
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*
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* AUTHOR
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*
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*
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* HISTORY
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* 2010-04-22 Code cleanup by Gowrishankar
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*
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*
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*****************************************************************************/
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#include <stdio.h>
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#include <pthread.h>
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#include <string.h>
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#include <unistd.h>
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#include <librttest.h>
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pthread_mutex_t child_mutex;
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void *child_thread(void *arg)
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{
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int ret;
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ret = pthread_mutex_lock(&child_mutex);
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if (ret != 0)
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printf("child thread: Failed to lock child_mutex: %d\n", ret);
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else
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printf("child_thread: got lock\n");
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sleep(2);
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printf("child_thread: Trying to get lock 2nd time\n");
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ret = pthread_mutex_lock(&child_mutex);
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if (ret != 0)
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printf("child thread: Failed to lock child_mutex: %d\n", ret);
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else
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printf("child_thread: got lock 2nd time !!\n");
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return NULL;
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}
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int do_test(int argc, char **argv)
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{
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pthread_mutexattr_t mutexattr;
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int retc, protocol;
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#if HAS_PRIORITY_INHERIT
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if (pthread_mutexattr_init(&mutexattr) != 0)
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printf("Failed to init mutexattr\n");
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if (pthread_mutexattr_setprotocol(&mutexattr,
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PTHREAD_PRIO_INHERIT) != 0)
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printf("Can't set protocol prio inherit\n");
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if (pthread_mutexattr_getprotocol(&mutexattr, &protocol) != 0)
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printf("Can't get mutexattr protocol\n");
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else
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printf("protocol in mutexattr is %d\n", protocol);
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retc = pthread_mutex_init(&child_mutex, &mutexattr);
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if (retc != 0)
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printf("Failed to init mutex: %d\n", retc);
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create_other_thread(child_thread, NULL);
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join_threads();
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return 0;
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#else
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return 1;
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#endif
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}
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#include "test-skeleton.c"
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