12c28215423293e443469a07ae7011135d058b671Garrett Cooper/* 20dc076565f772bb1953209fb69ea150b494aaa40robbiew * Copyright (c) 2002, Intel Corporation. All rights reserved. 30dc076565f772bb1953209fb69ea150b494aaa40robbiew * Created by: bing.wei.liu REMOVE-THIS AT intel DOT com 40dc076565f772bb1953209fb69ea150b494aaa40robbiew * This file is licensed under the GPL license. For the full content 52c28215423293e443469a07ae7011135d058b671Garrett Cooper * of this license, see the COPYING file at the top level of this 60dc076565f772bb1953209fb69ea150b494aaa40robbiew * source tree. 70dc076565f772bb1953209fb69ea150b494aaa40robbiew 80dc076565f772bb1953209fb69ea150b494aaa40robbiew * Test that pthread_mutexattr_setprioceiling() 90dc076565f772bb1953209fb69ea150b494aaa40robbiew * 100dc076565f772bb1953209fb69ea150b494aaa40robbiew * Sets the priority ceiling attribute of a mutexattr object (which was prev. created 110dc076565f772bb1953209fb69ea150b494aaa40robbiew * by the function pthread_mutexattr_init()). 120dc076565f772bb1953209fb69ea150b494aaa40robbiew * 130dc076565f772bb1953209fb69ea150b494aaa40robbiew * Steps: 140dc076565f772bb1953209fb69ea150b494aaa40robbiew * 1. Initialize a pthread_mutexattr_t object with pthread_mutexattr_init() 150dc076565f772bb1953209fb69ea150b494aaa40robbiew * 2. Get the min and max boundries for SCHED_FIFO of what prioceiling can be. 160dc076565f772bb1953209fb69ea150b494aaa40robbiew * 3. In a for loop, go through each valid SCHED_FIFO value, set the prioceiling. 172c28215423293e443469a07ae7011135d058b671Garrett Cooper * 180dc076565f772bb1953209fb69ea150b494aaa40robbiew */ 190dc076565f772bb1953209fb69ea150b494aaa40robbiew 200dc076565f772bb1953209fb69ea150b494aaa40robbiew#include <pthread.h> 210dc076565f772bb1953209fb69ea150b494aaa40robbiew#include <stdio.h> 220dc076565f772bb1953209fb69ea150b494aaa40robbiew#include <sched.h> 230dc076565f772bb1953209fb69ea150b494aaa40robbiew#include "posixtest.h" 240dc076565f772bb1953209fb69ea150b494aaa40robbiew 254ca2bbdcd3003f3c8df4e6129e9c7b2bd1514f87Cyril Hrubisint main(void) 260dc076565f772bb1953209fb69ea150b494aaa40robbiew{ 272c28215423293e443469a07ae7011135d058b671Garrett Cooper 282c28215423293e443469a07ae7011135d058b671Garrett Cooper /* Make sure there is prioceiling capability. */ 290dc076565f772bb1953209fb69ea150b494aaa40robbiew /* #ifndef _POSIX_PRIORITY_SCHEDULING 30354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao fprintf(stderr,"prioceiling attribute is not available for testing\n"); 31354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao return PTS_UNRESOLVED; 32354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao #endif */ 330dc076565f772bb1953209fb69ea150b494aaa40robbiew 340dc076565f772bb1953209fb69ea150b494aaa40robbiew pthread_mutexattr_t mta; 350dc076565f772bb1953209fb69ea150b494aaa40robbiew int max_prio, min_prio, i; 362c28215423293e443469a07ae7011135d058b671Garrett Cooper 370dc076565f772bb1953209fb69ea150b494aaa40robbiew /* Initialize a mutex attributes object */ 38354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao if (pthread_mutexattr_init(&mta) != 0) { 390dc076565f772bb1953209fb69ea150b494aaa40robbiew perror("Error at pthread_mutexattr_init()\n"); 400dc076565f772bb1953209fb69ea150b494aaa40robbiew return PTS_UNRESOLVED; 410dc076565f772bb1953209fb69ea150b494aaa40robbiew } 420dc076565f772bb1953209fb69ea150b494aaa40robbiew 430dc076565f772bb1953209fb69ea150b494aaa40robbiew /* Get the max and min prio according to SCHED_FIFO (posix scheduling policy) */ 440dc076565f772bb1953209fb69ea150b494aaa40robbiew max_prio = sched_get_priority_max(SCHED_FIFO); 450dc076565f772bb1953209fb69ea150b494aaa40robbiew min_prio = sched_get_priority_min(SCHED_FIFO); 460dc076565f772bb1953209fb69ea150b494aaa40robbiew 47354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao for (i = min_prio; (i < max_prio + 1); i++) { 482c28215423293e443469a07ae7011135d058b671Garrett Cooper /* Set the prioceiling to a priority number in the boundries 490dc076565f772bb1953209fb69ea150b494aaa40robbiew * of SCHED_FIFO policy */ 50354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao if (pthread_mutexattr_setprioceiling(&mta, i)) { 51354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao printf("Test FAILED: Error setting prioceiling to %d\n", 52354ebb48db8e66a853a58379a4808d5dcd1ceac3Wanlong Gao i); 530dc076565f772bb1953209fb69ea150b494aaa40robbiew return PTS_FAIL; 540dc076565f772bb1953209fb69ea150b494aaa40robbiew } 550dc076565f772bb1953209fb69ea150b494aaa40robbiew 560dc076565f772bb1953209fb69ea150b494aaa40robbiew } 570dc076565f772bb1953209fb69ea150b494aaa40robbiew 580dc076565f772bb1953209fb69ea150b494aaa40robbiew printf("Test PASSED\n"); 590dc076565f772bb1953209fb69ea150b494aaa40robbiew return PTS_PASS; 60ec6edca7aa42b6affd989ef91b5897f96795e40fChris Dearman} 61