configd.tproj/_notifychanges.c

   1 /*
   2  * Copyright (c) 2000-2003, 2006 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 24, 2000               Allan Nathanson <ajn@apple.com>
  31  * - initial revision
  32  */
  33
  34 #include "configd.h"
  35 #include "session.h"
  36
  37 __private_extern__
  38 int
  39 __SCDynamicStoreCopyNotifiedKeys(SCDynamicStoreRef store, CFArrayRef *notifierKeys)
  40 {
  41         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  42         CFStringRef                     sessionKey;
  43         CFDictionaryRef                 info;
  44         CFMutableDictionaryRef          newInfo;
  45
  46         if ((store == NULL) || (storePrivate->server == MACH_PORT_NULL)) {
  47                 return kSCStatusNoStoreSession; /* you must have an open session to play */
  48         }
  49
  50         sessionKey = CFStringCreateWithFormat(NULL, NULL, CFSTR("%d"), storePrivate->server);
  51         info = CFDictionaryGetValue(sessionData, sessionKey);
  52         if ((info == NULL) ||
  53             (CFDictionaryContainsKey(info, kSCDChangedKeys) == FALSE)) {
  54                 CFRelease(sessionKey);
  55                 *notifierKeys = CFArrayCreate(NULL, NULL, 0, &kCFTypeArrayCallBacks);
  56                 return kSCStatusOK;
  57         }
  58         newInfo = CFDictionaryCreateMutableCopy(NULL, 0, info);
  59
  60         *notifierKeys = CFDictionaryGetValue(newInfo, kSCDChangedKeys);
  61         CFRetain(*notifierKeys);
  62
  63         CFDictionaryRemoveValue(newInfo, kSCDChangedKeys);
  64         if (CFDictionaryGetCount(newInfo) > 0) {
  65                 CFDictionarySetValue(sessionData, sessionKey, newInfo);
  66         } else {
  67                 CFDictionaryRemoveValue(sessionData, sessionKey);
  68         }
  69         CFRelease(newInfo);
  70         CFRelease(sessionKey);
  71
  72         return kSCStatusOK;
  73 }
  74
  75
  76 __private_extern__
  77 kern_return_t
  78 _notifychanges(mach_port_t                      server,
  79                xmlDataOut_t                     *listRef,       /* raw XML bytes */
  80                mach_msg_type_number_t           *listLen,
  81                int                              *sc_status
  82 )
  83 {
  84         serverSessionRef        mySession = getSession(server);
  85         CFArrayRef              notifierKeys;   /* array of CFStringRef's */
  86         Boolean                 ok;
  87
  88         *listRef = NULL;
  89         *listLen = 0;
  90
  91         if (mySession == NULL) {
  92                 *sc_status = kSCStatusNoStoreSession;   /* you must have an open session to play */
  93                 return KERN_SUCCESS;
  94         }
  95
  96         *sc_status = __SCDynamicStoreCopyNotifiedKeys(mySession->store, &notifierKeys);
  97         if (*sc_status != kSCStatusOK) {
  98                 return KERN_SUCCESS;
  99         }
 100
 101         /* serialize the array of keys */
 102         ok = _SCSerialize(notifierKeys, NULL, (void **)listRef, (CFIndex *)listLen);
 103         CFRelease(notifierKeys);
 104         if (!ok) {
 105                 *sc_status = kSCStatusFailed;
 106                 return KERN_SUCCESS;
 107         }
 108
 109         return KERN_SUCCESS;
 110 }