configd.tproj/_notifycancel.c

   1 /*
   2  * Copyright (c) 2000, 2001, 2003-2006, 2009 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 <unistd.h>
  35
  36 #include "configd.h"
  37 #include "session.h"
  38
  39
  40 __private_extern__
  41 int
  42 __SCDynamicStoreNotifyCancel(SCDynamicStoreRef store)
  43 {
  44         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  45
  46         /*
  47          * cleanup any mach port based notifications.
  48          */
  49         if (storePrivate->notifyPort != MACH_PORT_NULL) {
  50                 __MACH_PORT_DEBUG(TRUE, "*** __SCDynamicStoreNotifyCancel (notify port)", storePrivate->notifyPort);
  51                 (void) mach_port_deallocate(mach_task_self(), storePrivate->notifyPort);
  52                 storePrivate->notifyPort = MACH_PORT_NULL;
  53         }
  54
  55         /*
  56          * cleanup any file based notifications.
  57          */
  58         if (storePrivate->notifyFile != -1) {
  59                 // close (notification) fd
  60                 (void) close(storePrivate->notifyFile);
  61                 storePrivate->notifyFile = -1;
  62         }
  63
  64         /*
  65          * cleanup any signal notifications.
  66          */
  67         if (storePrivate->notifySignal > 0) {
  68                 __MACH_PORT_DEBUG(TRUE, "*** __SCDynamicStoreNotifyCancel (signal)", storePrivate->notifySignalTask);
  69                 (void) mach_port_deallocate(mach_task_self(), storePrivate->notifySignalTask);
  70                 storePrivate->notifySignal     = 0;
  71                 storePrivate->notifySignalTask = TASK_NULL;
  72         }
  73
  74         /* remove this session from the to-be-notified list */
  75         if (needsNotification) {
  76                 CFNumberRef     num;
  77
  78                 num = CFNumberCreate(NULL, kCFNumberIntType, &storePrivate->server);
  79                 CFSetRemoveValue(needsNotification, num);
  80                 CFRelease(num);
  81
  82                 if (CFSetGetCount(needsNotification) == 0) {
  83                         CFRelease(needsNotification);
  84                         needsNotification = NULL;
  85                 }
  86         }
  87
  88         /* set notifier inactive */
  89         storePrivate->notifyStatus = NotifierNotRegistered;
  90
  91         return kSCStatusOK;
  92 }
  93
  94
  95 __private_extern__
  96 kern_return_t
  97 _notifycancel(mach_port_t       server,
  98               int               *sc_status)
  99 {
 100         serverSessionRef        mySession = getSession(server);
 101
 102         if (mySession == NULL) {
 103                 *sc_status = kSCStatusNoStoreSession;   /* you must have an open session to play */
 104                 return KERN_SUCCESS;
 105         }
 106
 107         __MACH_PORT_DEBUG(((SCDynamicStorePrivateRef)mySession->store)->notifyPort != MACH_PORT_NULL,
 108                           "*** _notifycancel",
 109                           ((SCDynamicStorePrivateRef)mySession->store)->notifyPort);
 110         *sc_status = __SCDynamicStoreNotifyCancel(mySession->store);
 111         return KERN_SUCCESS;
 112 }