SystemConfiguration.fproj/SCDNotifierCancel.c

   1 /*
   2  * Copyright (c) 2000-2005, 2008-2011, 2015, 2016 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 "SCDynamicStoreInternal.h"
  35 #include "config.h"             /* MiG generated file */
  36
  37 Boolean
  38 SCDynamicStoreNotifyCancel(SCDynamicStoreRef store)
  39 {
  40         struct os_activity_scope_state_s        activity_state;
  41         SCDynamicStorePrivateRef                storePrivate = (SCDynamicStorePrivateRef)store;
  42         kern_return_t                           status;
  43         int                                     sc_status;
  44
  45         if (store == NULL) {
  46                 /* sorry, you must provide a session */
  47                 _SCErrorSet(kSCStatusNoStoreSession);
  48                 return FALSE;
  49         }
  50
  51         switch (storePrivate->notifyStatus) {
  52                 case NotifierNotRegistered :
  53                         /* if no notifications have been registered */
  54                         return TRUE;
  55                 case Using_NotifierInformViaRunLoop :
  56                         if (storePrivate->rls != NULL) {
  57                                 CFRunLoopSourceRef      rls;
  58
  59                                 rls = storePrivate->rls;
  60                                 storePrivate->rls = NULL;
  61
  62                                 CFRunLoopSourceInvalidate(rls);
  63                                 CFRelease(rls);
  64                         }
  65                         return TRUE;
  66                 case Using_NotifierInformViaDispatch :
  67                         (void) SCDynamicStoreSetDispatchQueue(store, NULL);
  68                         return TRUE;
  69                 default :
  70                         break;
  71         }
  72
  73         if (storePrivate->server == MACH_PORT_NULL) {
  74                 /* sorry, you must have an open session to play */
  75                 sc_status = kSCStatusNoStoreServer;
  76                 goto done;
  77         }
  78
  79         os_activity_scope_enter(storePrivate->activity, &activity_state);
  80
  81         status = notifycancel(storePrivate->server, (int *)&sc_status);
  82
  83         if (__SCDynamicStoreCheckRetryAndHandleError(store,
  84                                                      status,
  85                                                      &sc_status,
  86                                                      "SCDynamicStoreNotifyCancel notifycancel()")) {
  87                 sc_status = kSCStatusOK;
  88         }
  89
  90         os_activity_scope_leave(&activity_state);
  91
  92     done :
  93
  94         if (sc_status != kSCStatusOK) {
  95                 _SCErrorSet(sc_status);
  96                 return FALSE;
  97         }
  98
  99         return TRUE;
 100 }