SystemConfiguration.fproj/SCDNotifierCancel.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26 /*
  27  * Modification History
  28  *
  29  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  30  * - public API conversion
  31  *
  32  * March 31, 2000               Allan Nathanson <ajn@apple.com>
  33  * - initial revision
  34  */
  35
  36 #include <mach/mach.h>
  37 #include <mach/mach_error.h>
  38
  39 #include <SystemConfiguration/SystemConfiguration.h>
  40 #include <SystemConfiguration/SCPrivate.h>
  41 #include "SCDynamicStoreInternal.h"
  42 #include "config.h"             /* MiG generated file */
  43
  44 Boolean
  45 SCDynamicStoreNotifyCancel(SCDynamicStoreRef store)
  46 {
  47         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  48         kern_return_t                   status;
  49         int                             sc_status;
  50
  51         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCDynamicStoreNotifyCancel:"));
  52
  53         if (!store) {
  54                 /* sorry, you must provide a session */
  55                 _SCErrorSet(kSCStatusNoStoreSession);
  56                 return FALSE;
  57         }
  58
  59         if (storePrivate->server == MACH_PORT_NULL) {
  60                 /* sorry, you must have an open session to play */
  61                 _SCErrorSet(kSCStatusNoStoreServer);
  62                 return FALSE;
  63         }
  64
  65         switch (storePrivate->notifyStatus) {
  66                 case NotifierNotRegistered :
  67                         /* if no notifications have been registered */
  68                         return TRUE;
  69                 case Using_NotifierInformViaRunLoop :
  70                         CFRunLoopSourceInvalidate(storePrivate->rls);
  71                         return TRUE;
  72                 case Using_NotifierInformViaCallback :
  73                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  cancel callback runloop source"));
  74
  75                         /* remove the run loop source */
  76                         CFRunLoopRemoveSource(storePrivate->callbackRunLoop,
  77                                               storePrivate->callbackRunLoopSource,
  78                                               kCFRunLoopDefaultMode);
  79                         CFRelease(storePrivate->callbackRunLoopSource);
  80                         storePrivate->callbackRunLoop           = NULL;
  81                         storePrivate->callbackRunLoopSource     = NULL;
  82
  83                         /* invalidate port */
  84                         CFMachPortInvalidate(storePrivate->callbackPort);
  85                         CFRelease(storePrivate->callbackPort);
  86                         storePrivate->callbackPort              = NULL;
  87
  88                         storePrivate->callbackArgument          = NULL;
  89                         storePrivate->callbackFunction          = NULL;
  90                         break;
  91                 default :
  92                         break;
  93         }
  94
  95         status = notifycancel(storePrivate->server, (int *)&sc_status);
  96
  97         /* set notifier inactive */
  98         storePrivate->notifyStatus = NotifierNotRegistered;
  99
 100         if (status != KERN_SUCCESS) {
 101                 if (status != MACH_SEND_INVALID_DEST)
 102                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("notifycancel(): %s"), mach_error_string(status));
 103                 (void) mach_port_destroy(mach_task_self(), storePrivate->server);
 104                 storePrivate->server = MACH_PORT_NULL;
 105                 _SCErrorSet(status);
 106                 return FALSE;
 107         }
 108
 109         if (sc_status != kSCStatusOK) {
 110                 _SCErrorSet(sc_status);
 111                 return FALSE;
 112         }
 113
 114         return TRUE;
 115 }