SCDUnlock.c   [plain text]

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 *
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */

#include <mach/mach.h>
#include <mach/mach_error.h>

#include <SystemConfiguration/SCD.h>
#include "config.h"		/* MiG generated file */
#include "SCDPrivate.h"


SCDStatus
SCDUnlock(SCDSessionRef session)
{
	SCDSessionPrivateRef	sessionPrivate = (SCDSessionPrivateRef)session;
	kern_return_t		status;
	SCDStatus		scd_status;

	SCDLog(LOG_DEBUG, CFSTR("SCDUnlock:"));

	if (session == NULL) {
		return SCD_NOSESSION;		/* you can't do anything without closed session */
	}

	scd_status = (sessionPrivate->server == MACH_PORT_NULL) ? SCD_NOSESSION : SCD_OK;

	if (scd_status == SCD_OK) {
		/* (attempt to) release the servers lock */
		status = configunlock(sessionPrivate->server, (int *)&scd_status);

		if (status != KERN_SUCCESS) {
			if (status != MACH_SEND_INVALID_DEST)
				SCDLog(LOG_DEBUG, CFSTR("configunlock(): %s"), mach_error_string(status));
			(void) mach_port_destroy(mach_task_self(), sessionPrivate->server);
			sessionPrivate->server = MACH_PORT_NULL;
			return SCD_NOSERVER;
		}
	}

	return scd_status;
}