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Annotation of embedaddon/ntp/lib/isc/win32/resource.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2004, 2007, 2008  Internet Systems Consortium, Inc. ("ISC")
                      3:  * Copyright (C) 2000, 2001  Internet Software Consortium.
                      4:  *
                      5:  * Permission to use, copy, modify, and/or 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: resource.c,v 1.10 2008/07/11 23:47:09 tbox Exp $ */
                     19: 
                     20: #include <config.h>
                     21: 
                     22: #include <stdio.h>
                     23: 
                     24: #include <isc/platform.h>
                     25: #include <isc/resource.h>
                     26: #include <isc/result.h>
                     27: #include <isc/util.h>
                     28: 
                     29: #include "errno2result.h"
                     30: 
                     31: /*
                     32:  * Windows limits the maximum number of open files to 2048
                     33:  */
                     34: 
                     35: #define WIN32_MAX_OPEN_FILES   2048
                     36: 
                     37: isc_result_t
                     38: isc_resource_setlimit(isc_resource_t resource, isc_resourcevalue_t value) {
                     39:        isc_resourcevalue_t rlim_value;
                     40:        int wresult;
                     41: 
                     42:        if (resource != isc_resource_openfiles)
                     43:                return (ISC_R_NOTIMPLEMENTED);
                     44: 
                     45: 
                     46:        if (value == ISC_RESOURCE_UNLIMITED)
                     47:                rlim_value = WIN32_MAX_OPEN_FILES;
                     48:        else
                     49:                rlim_value = min(value, WIN32_MAX_OPEN_FILES);
                     50: 
                     51:        wresult = _setmaxstdio((int) rlim_value);
                     52: 
                     53:        if (wresult > 0)
                     54:                return (ISC_R_SUCCESS);
                     55:        else
                     56:                return (isc__errno2result(errno));
                     57: }
                     58: 
                     59: isc_result_t
                     60: isc_resource_getlimit(isc_resource_t resource, isc_resourcevalue_t *value) {
                     61: 
                     62:        if (resource != isc_resource_openfiles)
                     63:                return (ISC_R_NOTIMPLEMENTED);
                     64: 
                     65:        *value = WIN32_MAX_OPEN_FILES;
                     66:        return (ISC_R_SUCCESS);
                     67: }
                     68: 
                     69: isc_result_t
                     70: isc_resource_getcurlimit(isc_resource_t resource, isc_resourcevalue_t *value) {
                     71:        return (isc_resource_getlimit(resource, value));
                     72: }