contrib/bind-9.2.4rc7/lib/isc/mutexblock.c

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1999-2001  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15  * PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 /* $Id: mutexblock.c,v 1.14.2.1 2004/03/09 06:11:48 marka Exp $ */
  19
  20 #include <config.h>
  21
  22 #include <isc/mutexblock.h>
  23 #include <isc/util.h>
  24
  25 isc_result_t
  26 isc_mutexblock_init(isc_mutex_t *block, unsigned int count) {
  27         isc_result_t result;
  28         unsigned int i;
  29
  30         for (i = 0 ; i < count ; i++) {
  31                 result = isc_mutex_init(&block[i]);
  32                 if (result != ISC_R_SUCCESS) {
  33                         i--;
  34                         while (i > 0) {
  35                                 DESTROYLOCK(&block[i]);
  36                                 i--;
  37                         }
  38                         return (result);
  39                 }
  40         }
  41
  42         return (ISC_R_SUCCESS);
  43 }
  44
  45 isc_result_t
  46 isc_mutexblock_destroy(isc_mutex_t *block, unsigned int count) {
  47         isc_result_t result;
  48         unsigned int i;
  49
  50         for (i = 0 ; i < count ; i++) {
  51                 result = isc_mutex_destroy(&block[i]);
  52                 if (result != ISC_R_SUCCESS)
  53                         return (result);
  54         }
  55
  56         return (ISC_R_SUCCESS);
  57 }