SystemConfiguration.fproj/SCDNotifierCancel.c

   1 /*
   2  * Copyright (c) 2000-2005, 2008-2011 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*
  25  * Modification History
  26  *
  27  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  28  * - public API conversion
  29  *
  30  * March 31, 2000               Allan Nathanson <ajn@apple.com>
  31  * - initial revision
  32  */
  33
  34 #include <mach/mach.h>
  35 #include <mach/mach_error.h>
  36
  37 #include <SystemConfiguration/SystemConfiguration.h>
  38 #include <SystemConfiguration/SCPrivate.h>
  39 #include "SCDynamicStoreInternal.h"
  40 #include "config.h"             /* MiG generated file */
  41
  42 Boolean
  43 SCDynamicStoreNotifyCancel(SCDynamicStoreRef store)
  44 {
  45         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  46         kern_return_t                   status;
  47         int                             sc_status;
  48
  49         if (store == NULL) {
  50                 /* sorry, you must provide a session */
  51                 _SCErrorSet(kSCStatusNoStoreSession);
  52                 return FALSE;
  53         }
  54
  55         switch (storePrivate->notifyStatus) {
  56                 case NotifierNotRegistered :
  57                         /* if no notifications have been registered */
  58                         return TRUE;
  59                 case Using_NotifierInformViaRunLoop :
  60                         CFRunLoopSourceInvalidate(storePrivate->rls);
  61                         storePrivate->rls = NULL;
  62                         return TRUE;
  63                 case Using_NotifierInformViaDispatch :
  64                         (void) SCDynamicStoreSetDispatchQueue(store, NULL);
  65                         return TRUE;
  66                 default :
  67                         break;
  68         }
  69
  70         if (storePrivate->server == MACH_PORT_NULL) {
  71                 /* sorry, you must have an open session to play */
  72                 sc_status = kSCStatusNoStoreServer;
  73                 goto done;
  74         }
  75
  76         status = notifycancel(storePrivate->server, (int *)&sc_status);
  77
  78         if (__SCDynamicStoreCheckRetryAndHandleError(store,
  79                                                      status,
  80                                                      &sc_status,
  81                                                      "SCDynamicStoreNotifyCancel notifycancel()")) {
  82                 sc_status = kSCStatusOK;
  83         }
  84
  85     done :
  86
  87         /* set notifier inactive */
  88         storePrivate->notifyStatus = NotifierNotRegistered;
  89
  90         if (sc_status != kSCStatusOK) {
  91                 _SCErrorSet(sc_status);
  92                 return FALSE;
  93         }
  94
  95         return TRUE;
  96 }