SystemConfiguration.fproj/SCDNotifierCancel.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, 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         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCDynamicStoreNotifyCancel:"));
  50
  51         if (!store) {
  52                 /* sorry, you must provide a session */
  53                 _SCErrorSet(kSCStatusNoStoreSession);
  54                 return FALSE;
  55         }
  56
  57         if (storePrivate->server == MACH_PORT_NULL) {
  58                 /* sorry, you must have an open session to play */
  59                 _SCErrorSet(kSCStatusNoStoreServer);
  60                 return FALSE;
  61         }
  62
  63         switch (storePrivate->notifyStatus) {
  64                 case NotifierNotRegistered :
  65                         /* if no notifications have been registered */
  66                         return TRUE;
  67                 case Using_NotifierInformViaRunLoop :
  68                         CFRunLoopSourceInvalidate(storePrivate->rls);
  69                         return TRUE;
  70                 case Using_NotifierInformViaCallback :
  71                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  cancel callback runloop source"));
  72
  73                         /* remove the run loop source */
  74                         CFRunLoopRemoveSource(storePrivate->callbackRunLoop,
  75                                               storePrivate->callbackRunLoopSource,
  76                                               kCFRunLoopDefaultMode);
  77                         CFRelease(storePrivate->callbackRunLoopSource);
  78                         storePrivate->callbackRunLoop           = NULL;
  79                         storePrivate->callbackRunLoopSource     = NULL;
  80
  81                         /* invalidate port */
  82                         CFMachPortInvalidate(storePrivate->callbackPort);
  83                         CFRelease(storePrivate->callbackPort);
  84                         storePrivate->callbackPort              = NULL;
  85
  86                         storePrivate->callbackArgument          = NULL;
  87                         storePrivate->callbackFunction          = NULL;
  88                         break;
  89                 default :
  90                         break;
  91         }
  92
  93         status = notifycancel(storePrivate->server, (int *)&sc_status);
  94
  95         /* set notifier inactive */
  96         storePrivate->notifyStatus = NotifierNotRegistered;
  97
  98         if (status != KERN_SUCCESS) {
  99                 if (status != MACH_SEND_INVALID_DEST)
 100                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("notifycancel(): %s"), mach_error_string(status));
 101                 (void) mach_port_destroy(mach_task_self(), storePrivate->server);
 102                 storePrivate->server = MACH_PORT_NULL;
 103                 _SCErrorSet(status);
 104                 return FALSE;
 105         }
 106
 107         if (sc_status != kSCStatusOK) {
 108                 _SCErrorSet(sc_status);
 109                 return FALSE;
 110         }
 111
 112         return TRUE;
 113 }