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      1 /*
      2  * Copyright (c) 2004, Intel Corporation. All rights reserved.
      3  * Created by:  crystal.xiong 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 pthread_attr_getstacksize()
      9  *
     10  * Steps:
     11  * 1.  Initialize pthread_attr_t object (attr)
     12  * 2.  set the stacksize to attr
     13  * 3.  get the stacksize
     14  */
     15 
     16 #include <pthread.h>
     17 #include <limits.h>
     18 #include <stdio.h>
     19 #include <string.h>
     20 #include <stdlib.h>
     21 #include <sys/param.h>
     22 #include <errno.h>
     23 #include <unistd.h>
     24 #include "posixtest.h"
     25 
     26 #define TEST "1-1"
     27 #define FUNCTION "pthread_attr_getstacksize"
     28 #define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": "
     29 
     30 int main(void)
     31 {
     32 	pthread_attr_t attr;
     33 	size_t stack_size;
     34 	size_t ssize;
     35 	void *saddr;
     36 	int rc;
     37 
     38 	/* Initialize attr */
     39 	rc = pthread_attr_init(&attr);
     40 	if (rc != 0) {
     41 		perror(ERROR_PREFIX "pthread_attr_init");
     42 		exit(PTS_UNRESOLVED);
     43 	}
     44 
     45 	/* Get the default stack_addr and stack_size value */
     46 	rc = pthread_attr_getstacksize(&attr, &stack_size);
     47 	if (rc != 0) {
     48 		perror(ERROR_PREFIX "pthread_attr_getstacksize");
     49 		exit(PTS_UNRESOLVED);
     50 	}
     51 	/* printf("stack_size = %lu\n", stack_size); */
     52 
     53 	stack_size = PTHREAD_STACK_MIN;
     54 
     55 	if (posix_memalign(&saddr, sysconf(_SC_PAGE_SIZE), stack_size) != 0) {
     56 		perror(ERROR_PREFIX "out of memory while "
     57 		       "allocating the stack memory");
     58 		exit(PTS_UNRESOLVED);
     59 	}
     60 	/* printf("stack_size = %lu\n", stack_size); */
     61 
     62 	rc = pthread_attr_setstacksize(&attr, stack_size);
     63 	if (rc != 0) {
     64 		perror(ERROR_PREFIX "pthread_attr_setstacksize");
     65 		exit(PTS_UNRESOLVED);
     66 	}
     67 
     68 	rc = pthread_attr_getstacksize(&attr, &ssize);
     69 	if (rc != 0) {
     70 		perror(ERROR_PREFIX "pthread_attr_getstacksize");
     71 		exit(PTS_UNRESOLVED);
     72 	}
     73 	/* printf("ssize = %lu\n", ssize); */
     74 
     75 	rc = pthread_attr_destroy(&attr);
     76 	if (rc != 0) {
     77 		perror(ERROR_PREFIX "pthread_attr_destroy");
     78 		exit(PTS_UNRESOLVED);
     79 	}
     80 
     81 	printf("Test PASSED\n");
     82 	return PTS_PASS;
     83 }
     84