freebsd-dev/contrib/ntp/lib/isc/mutexblock.c

/*
 * Copyright (C) 2004, 2005, 2007, 2011, 2012  Internet Systems Consortium, Inc. ("ISC")
 * Copyright (C) 1999-2001  Internet Software Consortium.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/* $Id$ */

/*! \file */

#include <config.h>

#include <isc/mutexblock.h>
#include <isc/util.h>

isc_result_t
isc_mutexblock_init(isc_mutex_t *block, unsigned int count) {
	isc_result_t result;
	unsigned int i;

	for (i = 0; i < count; i++) {
		result = isc_mutex_init(&block[i]);
		if (result != ISC_R_SUCCESS) {
			while (i > 0U) {
				i--;
				DESTROYLOCK(&block[i]);
			}
			return (result);
		}
	}

	return (ISC_R_SUCCESS);
}

isc_result_t
isc_mutexblock_destroy(isc_mutex_t *block, unsigned int count) {
	isc_result_t result;
	unsigned int i;

	for (i = 0; i < count; i++) {
		result = isc_mutex_destroy(&block[i]);
		if (result != ISC_R_SUCCESS)
			return (result);
	}

	return (ISC_R_SUCCESS);
}