configd.tproj/_notifychanges.c

   1 /*
   2  * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26 /*
  27  * Modification History
  28  *
  29  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  30  * - public API conversion
  31  *
  32  * March 24, 2000               Allan Nathanson <ajn@apple.com>
  33  * - initial revision
  34  */
  35
  36 #include "configd.h"
  37 #include "session.h"
  38
  39 __private_extern__
  40 int
  41 __SCDynamicStoreCopyNotifiedKeys(SCDynamicStoreRef store, CFArrayRef *notifierKeys)
  42 {
  43         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  44         CFStringRef                     sessionKey;
  45         CFDictionaryRef                 info;
  46         CFMutableDictionaryRef          newInfo;
  47
  48         SCLog(_configd_verbose, LOG_DEBUG, CFSTR("__SCDynamicStoreCopyNotifiedKeys:"));
  49
  50         if (!store || (storePrivate->server == MACH_PORT_NULL)) {
  51                 return kSCStatusNoStoreSession; /* you must have an open session to play */
  52         }
  53
  54         sessionKey = CFStringCreateWithFormat(NULL, NULL, CFSTR("%d"), storePrivate->server);
  55         info = CFDictionaryGetValue(sessionData, sessionKey);
  56         if ((info == NULL) ||
  57             (CFDictionaryContainsKey(info, kSCDChangedKeys) == FALSE)) {
  58                 CFRelease(sessionKey);
  59                 *notifierKeys = CFArrayCreate(NULL, NULL, 0, &kCFTypeArrayCallBacks);;
  60                 return kSCStatusOK;
  61         }
  62         newInfo = CFDictionaryCreateMutableCopy(NULL, 0, info);
  63
  64         *notifierKeys = CFDictionaryGetValue(newInfo, kSCDChangedKeys);
  65         CFRetain(*notifierKeys);
  66
  67         CFDictionaryRemoveValue(newInfo, kSCDChangedKeys);
  68         if (CFDictionaryGetCount(newInfo) > 0) {
  69                 CFDictionarySetValue(sessionData, sessionKey, newInfo);
  70         } else {
  71                 CFDictionaryRemoveValue(sessionData, sessionKey);
  72         }
  73         CFRelease(newInfo);
  74         CFRelease(sessionKey);
  75
  76         return kSCStatusOK;
  77 }
  78
  79
  80 __private_extern__
  81 kern_return_t
  82 _notifychanges(mach_port_t                      server,
  83                xmlDataOut_t                     *listRef,       /* raw XML bytes */
  84                mach_msg_type_number_t           *listLen,
  85                int                              *sc_status
  86 )
  87 {
  88         serverSessionRef        mySession = getSession(server);
  89         CFArrayRef              notifierKeys;   /* array of CFStringRef's */
  90         Boolean                 ok;
  91
  92         if (_configd_verbose) {
  93                 SCLog(TRUE, LOG_DEBUG, CFSTR("List notification keys which have changed."));
  94                 SCLog(TRUE, LOG_DEBUG, CFSTR("  server = %d"), server);
  95         }
  96
  97         *listRef = NULL;
  98         *listLen = 0;
  99
 100         if (!mySession) {
 101                 *sc_status = kSCStatusNoStoreSession;   /* you must have an open session to play */
 102                 return KERN_SUCCESS;
 103         }
 104
 105         *sc_status = __SCDynamicStoreCopyNotifiedKeys(mySession->store, &notifierKeys);
 106         if (*sc_status != kSCStatusOK) {
 107                 return KERN_SUCCESS;
 108         }
 109
 110         /* serialize the array of keys */
 111         ok = _SCSerialize(notifierKeys, NULL, (void **)listRef, (CFIndex *)listLen);
 112         CFRelease(notifierKeys);
 113         if (!ok) {
 114                 *sc_status = kSCStatusFailed;
 115                 return KERN_SUCCESS;
 116         }
 117
 118         return KERN_SUCCESS;
 119 }