1 /* $NetBSD: refcount.c,v 1.4 2014/12/10 04:37:59 christos Exp $ */ 2 3 /* 4 * Copyright (C) 2005, 2007 Internet Systems Consortium, Inc. ("ISC") 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 11 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 12 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 13 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 14 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 15 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* Id: refcount.c,v 1.5 2007/06/19 23:47:17 tbox Exp */ 20 21 #include <config.h> 22 23 #include <stddef.h> 24 25 #include <isc/mutex.h> 26 #include <isc/refcount.h> 27 #include <isc/result.h> 28 29 isc_result_t 30 isc_refcount_init(isc_refcount_t *ref, unsigned int n) { 31 REQUIRE(ref != NULL); 32 33 ref->refs = n; 34 #if defined(ISC_PLATFORM_USETHREADS) && !defined(ISC_PLATFORM_HAVEXADD) 35 return (isc_mutex_init(&ref->lock)); 36 #else 37 return (ISC_R_SUCCESS); 38 #endif 39 } 40