SecurityServer/MacYarrow/yarrowseed.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 //
  20 // yarrowseed - periodical to collect and seed entropy into /dev/random
  21 //
  22 #ifndef _H_YARROWSEED
  23 #define _H_YARROWSEED
  24
  25 #include <Security/machserver.h>
  26 #include <mach/mach_error.h>
  27
  28
  29 using MachPlusPlus::MachServer;
  30
  31
  32 /*
  33  * A timer for this module. Just one, and it's always active subsequent to startup.
  34  */
  35 class YarrowTimer : public MachServer::Timer {
  36 public:
  37         YarrowTimer(MachPlusPlus::MachServer &srv, const char *entropyFile = NULL);
  38
  39         void action();
  40         void scheduleTimer(unsigned msFromNow);
  41
  42         MachPlusPlus::MachServer        &server;                // to which we do setTimer()
  43 };
  44
  45 #endif //_H_YARROWSEED