1/* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * Created by: bing.wei.liu REMOVE-THIS AT intel DOT com 4 * This file is licensed under the GPL license. For the full content 5 * of this license, see the COPYING file at the top level of this 6 * source tree. 7 8 * Test that pthread_condattr_setpshared() 9 * 10 * It shall obtain the value of the process-shared attribute from 'attr'. 11 * 12 * Explanation: To share a mutex between 2 processes, you need to map shared memory for 13 * the mutex. So whether the 'type' of the condattr is shared or private, it really will 14 * not make a difference since both processes will always have access to the shared memory 15 * as long as they the pointer to it. So all we check here is that you can actually call 16 * the pthread_condattr_setpshared() function, passing to it PTHREAD_PROCESS_SHARED and 17 * PTHREAD_PROCESS_PRIVATE. 18 * 19 * Steps: 20 * 1. In a loop, initialize a pthread_condattr_t object with pthread_condattr_init() 21 * 2. Set 'pshared' of the object to PTHREAD_PROCESS_PRIVATE using pthread_condattr_setpshared 22 * 3. Call pthread_condattr_getpshared() to check if the process-shared 23 * attribute is set as PTHREAD_PROCESS_PRIVATE. 24 * 25 */ 26 27#include <pthread.h> 28#include <stdio.h> 29#include <errno.h> 30#include "posixtest.h" 31 32#define NUM_OF_CONDATTR 10 33 34int main() 35{ 36 37 /* Make sure there is process-shared capability. */ 38 #ifndef PTHREAD_PROCESS_SHARED 39 fprintf(stderr,"process-shared attribute is not available for testing\n"); 40 return PTS_UNRESOLVED; 41 #endif 42 43 pthread_condattr_t attr[NUM_OF_CONDATTR]; 44 int ret, i, pshared; 45 46 for(i=0;i<NUM_OF_CONDATTR;i++) 47 { 48 /* Initialize a cond attributes object */ 49 if(pthread_condattr_init(&attr[i]) != 0) 50 { 51 perror("Error at pthread_condattr_init()\n"); 52 return PTS_UNRESOLVED; 53 } 54 55 /* Set 'pshared' to PTHREAD_PROCESS_PRIVATE. */ 56 ret=pthread_condattr_setpshared(&attr[i], PTHREAD_PROCESS_PRIVATE); 57 if(ret != 0) 58 { 59 printf("Test FAILED: Could not set pshared to PTHREAD_PROCESS_PRIVATE, error: %d\n", ret); 60 return PTS_FAIL; 61 } 62 63 /* Get 'pshared'. It should be PTHREAD_PROCESS_PRIVATE. */ 64 if(pthread_condattr_getpshared(&attr[i], &pshared) != 0) 65 { 66 printf("Test FAILED: obtaining the wrong process-shared attribute, expected PTHREAD_PROCESS_PRIVATE, but got: %d\n", pshared); 67 return PTS_FAIL; 68 } 69 70 if(pshared != PTHREAD_PROCESS_PRIVATE) 71 { 72 printf("Test FAILED: Incorrect pshared value: %d\n", pshared); 73 return PTS_FAIL; 74 } 75 76 /* Destory the cond attributes object */ 77 if(pthread_condattr_destroy(&attr[i]) != 0) 78 { 79 perror("Error at pthread_condattr_destroy()\n"); 80 return PTS_UNRESOLVED; 81 } 82 } 83 84 printf("Test PASSED\n"); 85 return PTS_PASS; 86} 87