| /****************************************************************************** |
| * |
| * Copyright © International Business Machines Corp., 2008 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| * NAME |
| * testpi-5.c |
| * |
| * DESCRIPTION |
| * This testcase verifies if a thread can lock the priority inheritance |
| * mutex multiple times. |
| * |
| * USAGE: |
| * Use run_auto.sh script in current directory to build and run test. |
| * |
| * AUTHOR |
| * |
| * |
| * HISTORY |
| * 2010-04-22 Code cleanup by Gowrishankar |
| * |
| * |
| *****************************************************************************/ |
| |
| #include <stdio.h> |
| #include <pthread.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <librttest.h> |
| pthread_mutex_t child_mutex; |
| |
| void *child_thread(void *arg) |
| { |
| int ret; |
| |
| ret = pthread_mutex_lock(&child_mutex); |
| if (ret != 0) |
| printf("child thread: Failed to lock child_mutex: %d\n", ret); |
| else |
| printf("child_thread: got lock\n"); |
| |
| sleep(2); |
| |
| printf("child_thread: Trying to get lock 2nd time\n"); |
| ret = pthread_mutex_lock(&child_mutex); |
| if (ret != 0) |
| printf("child thread: Failed to lock child_mutex: %d\n", ret); |
| else |
| printf("child_thread: got lock 2nd time !!\n"); |
| |
| return NULL; |
| } |
| |
| int do_test(int argc, char **argv) |
| { |
| pthread_mutexattr_t mutexattr; |
| int retc, protocol; |
| |
| #if HAS_PTHREAD_MUTEXATTR_PROTOCOL_FUNCTIONS |
| |
| if (pthread_mutexattr_init(&mutexattr) != 0) |
| printf("Failed to init mutexattr\n"); |
| |
| if (pthread_mutexattr_setprotocol(&mutexattr, |
| PTHREAD_PRIO_INHERIT) != 0) |
| printf("Can't set protocol prio inherit\n"); |
| |
| if (pthread_mutexattr_getprotocol(&mutexattr, &protocol) != 0) |
| printf("Can't get mutexattr protocol\n"); |
| else |
| printf("protocol in mutexattr is %d\n", protocol); |
| |
| retc = pthread_mutex_init(&child_mutex, &mutexattr); |
| if (retc != 0) |
| printf("Failed to init mutex: %d\n", retc); |
| |
| create_other_thread(child_thread, NULL); |
| join_threads(); |
| |
| return 0; |
| #else |
| return 1; |
| #endif |
| } |
| |
| #include "test-skeleton.c" |