SystemConfiguration.fproj/SCDNotifierCancel.c

   1 /*
   2  * Copyright (c) 2000-2005, 2008-2011, 2015-2017 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 #ifdef  VERBOSE_ACTIVITY_LOGGING
  41         struct os_activity_scope_state_s        activity_state;
  42 #endif  // VERBOSE_ACTIVITY_LOGGING
  43         SCDynamicStorePrivateRef                storePrivate = (SCDynamicStorePrivateRef)store;
  44         kern_return_t                           status;
  45         int                                     sc_status;
  46
  47         if (store == NULL) {
  48                 /* sorry, you must provide a session */
  49                 _SCErrorSet(kSCStatusNoStoreSession);
  50                 return FALSE;
  51         }
  52
  53         switch (storePrivate->notifyStatus) {
  54                 case NotifierNotRegistered :
  55                         /* if no notifications have been registered */
  56                         return TRUE;
  57                 case Using_NotifierInformViaRunLoop :
  58                         if (storePrivate->rls != NULL) {
  59                                 CFRunLoopSourceRef      rls;
  60
  61                                 rls = storePrivate->rls;
  62                                 storePrivate->rls = NULL;
  63
  64                                 CFRunLoopSourceInvalidate(rls);
  65                                 CFRelease(rls);
  66                         }
  67                         return TRUE;
  68                 case Using_NotifierInformViaDispatch :
  69                         (void) SCDynamicStoreSetDispatchQueue(store, NULL);
  70                         return TRUE;
  71                 default :
  72                         break;
  73         }
  74
  75         if (storePrivate->server == MACH_PORT_NULL) {
  76                 /* sorry, you must have an open session to play */
  77                 sc_status = kSCStatusNoStoreServer;
  78                 goto done;
  79         }
  80
  81 #ifdef  VERBOSE_ACTIVITY_LOGGING
  82         os_activity_scope_enter(storePrivate->activity, &activity_state);
  83 #endif  // VERBOSE_ACTIVITY_LOGGING
  84
  85         status = notifycancel(storePrivate->server, (int *)&sc_status);
  86
  87         if (__SCDynamicStoreCheckRetryAndHandleError(store,
  88                                                      status,
  89                                                      &sc_status,
  90                                                      "SCDynamicStoreNotifyCancel notifycancel()")) {
  91                 sc_status = kSCStatusOK;
  92         }
  93
  94 #ifdef  VERBOSE_ACTIVITY_LOGGING
  95         os_activity_scope_leave(&activity_state);
  96 #endif  // VERBOSE_ACTIVITY_LOGGING
  97
  98     done :
  99
 100         if (sc_status != kSCStatusOK) {
 101                 _SCErrorSet(sc_status);
 102                 return FALSE;
 103         }
 104
 105         return TRUE;
 106 }