/*
 * Copyright (c) 2004, Intel Corporation. All rights reserved.
 * Created by:  crystal.xiong REMOVE-THIS AT intel DOT com
 * This file is licensed under the GPL license.  For the full content
 * of this license, see the COPYING file at the top level of this
 * source tree.

 * Test pthread_attr_getstack()
 *
 * Steps:
 * 1.  Initialize pthread_attr_t object (attr)
 * 2.  set the stackaddr and stacksize to attr
 * 3.  get the stackaddr and stacksize
 */

#include <pthread.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/param.h>
#include <errno.h>
#include <unistd.h>
#include "posixtest.h"

#define TEST "1-1"
#define FUNCTION "pthread_attr_getstack"
#define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": "

int main(void)
{
	pthread_attr_t attr;
	void *stack_addr;
	size_t stack_size;
	size_t ssize;
	void *saddr;
	int rc;

	/* Initialize attr */
	rc = pthread_attr_init(&attr);
	if (rc != 0) {
		perror(ERROR_PREFIX "pthread_attr_init");
		exit(PTS_UNRESOLVED);
	}

	/* Get the default stack_addr and stack_size value */
	rc = pthread_attr_getstack(&attr, &stack_addr, &stack_size);
	if (rc != 0) {
		perror(ERROR_PREFIX "pthread_attr_getstack");
		exit(PTS_UNRESOLVED);
	}
	printf("stack_addr = %p, stack_size = %zu\n", stack_addr, stack_size);

	stack_size = PTHREAD_STACK_MIN;

	if (posix_memalign(&stack_addr, sysconf(_SC_PAGE_SIZE),
			   stack_size) != 0) {
		perror(ERROR_PREFIX "out of memory while "
		       "allocating the stack memory");
		exit(PTS_UNRESOLVED);
	}
	printf("stack_addr = %p, stack_size = %zu\n", stack_addr, stack_size);

	rc = pthread_attr_setstack(&attr, stack_addr, stack_size);
	if (rc != 0) {
		perror(ERROR_PREFIX "pthread_attr_setstack");
		exit(PTS_UNRESOLVED);
	}

	rc = pthread_attr_getstack(&attr, &saddr, &ssize);
	if (rc != 0) {
		perror(ERROR_PREFIX "pthread_attr_getstack");
		exit(PTS_UNRESOLVED);
	}
	printf("saddr = %p, ssize = %zu\n", saddr, ssize);

	rc = pthread_attr_destroy(&attr);
	if (rc != 0) {
		perror(ERROR_PREFIX "pthread_attr_destroy");
		exit(PTS_UNRESOLVED);
	}

	printf("Test PASSED\n");
	return PTS_PASS;
}
