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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#include <stdio.h>
#include <isc/platform.h>
#include <isc/resource.h>
#include <isc/result.h>
#include <isc/util.h>
#include "errno2result.h"
/*
* Windows limits the maximum number of open files to 2048
*/
#define WIN32_MAX_OPEN_FILES 2048
isc_result_t
isc_resource_setlimit(isc_resource_t resource, isc_resourcevalue_t value) {
isc_resourcevalue_t rlim_value;
int wresult;
if (resource != isc_resource_openfiles) {
return (ISC_R_NOTIMPLEMENTED);
}
if (value == ISC_RESOURCE_UNLIMITED) {
rlim_value = WIN32_MAX_OPEN_FILES;
} else {
rlim_value = min(value, WIN32_MAX_OPEN_FILES);
}
wresult = _setmaxstdio((int)rlim_value);
if (wresult > 0) {
return (ISC_R_SUCCESS);
} else {
return (isc__errno2result(errno));
}
}
isc_result_t
isc_resource_getlimit(isc_resource_t resource, isc_resourcevalue_t *value) {
if (resource != isc_resource_openfiles) {
return (ISC_R_NOTIMPLEMENTED);
}
*value = WIN32_MAX_OPEN_FILES;
return (ISC_R_SUCCESS);
}
isc_result_t
isc_resource_getcurlimit(isc_resource_t resource, isc_resourcevalue_t *value) {
return (isc_resource_getlimit(resource, value));
}
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