1-1.c revision 0dc076565f772bb1953209fb69ea150b494aaa40
10dc076565f772bb1953209fb69ea150b494aaa40robbiew/* 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 50dc076565f772bb1953209fb69ea150b494aaa40robbiew * 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. 170dc076565f772bb1953209fb69ea150b494aaa40robbiew * 180dc076565f772bb1953209fb69ea150b494aaa40robbiew */ 190dc076565f772bb1953209fb69ea150b494aaa40robbiew 200dc076565f772bb1953209fb69ea150b494aaa40robbiew#include <pthread.h> 210dc076565f772bb1953209fb69ea150b494aaa40robbiew#include <stdio.h> 220dc076565f772bb1953209fb69ea150b494aaa40robbiew#include <sched.h> 230dc076565f772bb1953209fb69ea150b494aaa40robbiew#include "posixtest.h" 240dc076565f772bb1953209fb69ea150b494aaa40robbiew 250dc076565f772bb1953209fb69ea150b494aaa40robbiewint main() 260dc076565f772bb1953209fb69ea150b494aaa40robbiew{ 270dc076565f772bb1953209fb69ea150b494aaa40robbiew 280dc076565f772bb1953209fb69ea150b494aaa40robbiew /* Make sure there is prioceiling capability. */ 290dc076565f772bb1953209fb69ea150b494aaa40robbiew /* #ifndef _POSIX_PRIORITY_SCHEDULING 300dc076565f772bb1953209fb69ea150b494aaa40robbiew fprintf(stderr,"prioceiling attribute is not available for testing\n"); 310dc076565f772bb1953209fb69ea150b494aaa40robbiew return PTS_UNRESOLVED; 320dc076565f772bb1953209fb69ea150b494aaa40robbiew #endif */ 330dc076565f772bb1953209fb69ea150b494aaa40robbiew 340dc076565f772bb1953209fb69ea150b494aaa40robbiew pthread_mutexattr_t mta; 350dc076565f772bb1953209fb69ea150b494aaa40robbiew int max_prio, min_prio, i; 360dc076565f772bb1953209fb69ea150b494aaa40robbiew 370dc076565f772bb1953209fb69ea150b494aaa40robbiew /* Initialize a mutex attributes object */ 380dc076565f772bb1953209fb69ea150b494aaa40robbiew if(pthread_mutexattr_init(&mta) != 0) 390dc076565f772bb1953209fb69ea150b494aaa40robbiew { 400dc076565f772bb1953209fb69ea150b494aaa40robbiew perror("Error at pthread_mutexattr_init()\n"); 410dc076565f772bb1953209fb69ea150b494aaa40robbiew return PTS_UNRESOLVED; 420dc076565f772bb1953209fb69ea150b494aaa40robbiew } 430dc076565f772bb1953209fb69ea150b494aaa40robbiew 440dc076565f772bb1953209fb69ea150b494aaa40robbiew /* Get the max and min prio according to SCHED_FIFO (posix scheduling policy) */ 450dc076565f772bb1953209fb69ea150b494aaa40robbiew max_prio = sched_get_priority_max(SCHED_FIFO); 460dc076565f772bb1953209fb69ea150b494aaa40robbiew min_prio = sched_get_priority_min(SCHED_FIFO); 470dc076565f772bb1953209fb69ea150b494aaa40robbiew 480dc076565f772bb1953209fb69ea150b494aaa40robbiew for(i=min_prio;(i<max_prio+1);i++) 490dc076565f772bb1953209fb69ea150b494aaa40robbiew { 500dc076565f772bb1953209fb69ea150b494aaa40robbiew /* Set the prioceiling to a priority number in the boundries 510dc076565f772bb1953209fb69ea150b494aaa40robbiew * of SCHED_FIFO policy */ 520dc076565f772bb1953209fb69ea150b494aaa40robbiew if(pthread_mutexattr_setprioceiling(&mta,i)) 530dc076565f772bb1953209fb69ea150b494aaa40robbiew { 540dc076565f772bb1953209fb69ea150b494aaa40robbiew printf("Test FAILED: Error setting prioceiling to %d\n", i); 550dc076565f772bb1953209fb69ea150b494aaa40robbiew return PTS_FAIL; 560dc076565f772bb1953209fb69ea150b494aaa40robbiew } 570dc076565f772bb1953209fb69ea150b494aaa40robbiew 580dc076565f772bb1953209fb69ea150b494aaa40robbiew } 590dc076565f772bb1953209fb69ea150b494aaa40robbiew 600dc076565f772bb1953209fb69ea150b494aaa40robbiew printf("Test PASSED\n"); 610dc076565f772bb1953209fb69ea150b494aaa40robbiew return PTS_PASS; 620dc076565f772bb1953209fb69ea150b494aaa40robbiew} 63