cdsa/mds/MDSSession.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 #ifndef _MDSSESSION_H_
  20 #define _MDSSESSION_H_  1
  21
  22 #include <Security/DatabaseSession.h>
  23 #include <Security/handleobject.h>
  24 #include <Security/mds.h>
  25 #include <map>
  26 #include <sys/stat.h>
  27 #include <list>
  28
  29 typedef list<class PluginInfo *> PluginInfoList;
  30
  31 class MDSSession: public DatabaseSession, public HandleObject
  32 {
  33     NOCOPY(MDSSession)
  34 public:
  35     MDSSession (const Guid *inCallerGuid,
  36                 const CSSM_MEMORY_FUNCS &inMemoryFunctions);
  37     virtual ~MDSSession ();
  38
  39     void terminate ();
  40     void install ();
  41     void uninstall ();
  42
  43     void GetDbNames(CSSM_NAME_LIST_PTR &outNameList);
  44     void FreeNameList(CSSM_NAME_LIST &inNameList);
  45
  46     // implement CssmHeap::Allocator
  47     void *malloc(size_t size) { return mCssmMemoryFunctions.malloc(size); };
  48     void free(void *addr) { mCssmMemoryFunctions.free(addr); }
  49         void *realloc(void *addr, size_t size) { return mCssmMemoryFunctions.realloc(addr, size); }
  50
  51 private:
  52         bool obtainLock(int timeout = 0);
  53         void releaseLock();
  54
  55         void initializeDatabases();
  56         void updateDatabases();
  57
  58         void scanPluginDirectory();
  59         void removeOutdatedPlugins(const PluginInfoList &pluginList);
  60         void insertNewPlugins(const PluginInfoList &pluginList);
  61
  62     const CssmMemoryFunctions mCssmMemoryFunctions;
  63     Guid mCallerGuid;
  64     bool mCallerGuidPresent;
  65
  66         struct timespec mLastScanTime;
  67         int mLockFd;
  68 };
  69
  70 #endif //_MDSSESSION_H_