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 34 int main(void) 35 { 36 37 /* Make sure there is process-shared capability. */ 38 #ifndef PTHREAD_PROCESS_SHARED 39 fprintf(stderr, 40 "process-shared attribute is not available for testing\n"); 41 return PTS_UNRESOLVED; 42 #endif 43 44 pthread_condattr_t attr[NUM_OF_CONDATTR]; 45 int ret, i, pshared; 46 47 for (i = 0; i < NUM_OF_CONDATTR; i++) { 48 /* Initialize a cond attributes object */ 49 if (pthread_condattr_init(&attr[i]) != 0) { 50 perror("Error at pthread_condattr_init()\n"); 51 return PTS_UNRESOLVED; 52 } 53 54 /* Set 'pshared' to PTHREAD_PROCESS_PRIVATE. */ 55 ret = 56 pthread_condattr_setpshared(&attr[i], 57 PTHREAD_PROCESS_PRIVATE); 58 if (ret != 0) { 59 printf 60 ("Test FAILED: Could not set pshared to PTHREAD_PROCESS_PRIVATE, error: %d\n", 61 ret); 62 return PTS_FAIL; 63 } 64 65 /* Get 'pshared'. It should be PTHREAD_PROCESS_PRIVATE. */ 66 if (pthread_condattr_getpshared(&attr[i], &pshared) != 0) { 67 printf 68 ("Test FAILED: obtaining the wrong process-shared attribute, expected PTHREAD_PROCESS_PRIVATE, but got: %d\n", 69 pshared); 70 return PTS_FAIL; 71 } 72 73 if (pshared != PTHREAD_PROCESS_PRIVATE) { 74 printf("Test FAILED: Incorrect pshared value: %d\n", 75 pshared); 76 return PTS_FAIL; 77 } 78 79 /* Destory the cond attributes object */ 80 if (pthread_condattr_destroy(&attr[i]) != 0) { 81 perror("Error at pthread_condattr_destroy()\n"); 82 return PTS_UNRESOLVED; 83 } 84 } 85 86 printf("Test PASSED\n"); 87 return PTS_PASS; 88 } 89
