cdef20bb66
adjust clang-format options to get closer to ISC style See merge request isc-projects/bind9!3061 (cherry picked from commitd3b49b6675)0255a974revise .clang-format and add a C formatting script in utile851ed0bapply the modified style
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
|
|
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
|
|
*
|
|
* 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 http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* See the COPYRIGHT file distributed with this work for additional
|
|
* information regarding copyright ownership.
|
|
*/
|
|
|
|
#include <windows.h>
|
|
|
|
#include <isc/assertions.h>
|
|
#include <isc/once.h>
|
|
#include <isc/util.h>
|
|
|
|
isc_result_t
|
|
isc_once_do(isc_once_t *controller, void (*function)(void)) {
|
|
REQUIRE(controller != NULL && function != NULL);
|
|
|
|
if (controller->status == ISC_ONCE_INIT_NEEDED) {
|
|
if (InterlockedDecrement(&controller->counter) == 0) {
|
|
if (controller->status == ISC_ONCE_INIT_NEEDED) {
|
|
function();
|
|
controller->status = ISC_ONCE_INIT_DONE;
|
|
}
|
|
} else {
|
|
while (controller->status == ISC_ONCE_INIT_NEEDED) {
|
|
/*
|
|
* Sleep(0) indicates that this thread
|
|
* should be suspended to allow other
|
|
* waiting threads to execute.
|
|
*/
|
|
Sleep(0);
|
|
}
|
|
}
|
|
}
|
|
|
|
return (ISC_R_SUCCESS);
|
|
}
|