src/CompletionDispatcher.h

   1 /*
   2  * Copyright (C) 1996-2016 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef SQUID_COMPLETIONDISPATCHER_H
  10 #define SQUID_COMPLETIONDISPATCHER_H
  11
  12 /* Dispatch code to handle events that have completed. Completed events are queued
  13  * with a completion dispatcher by the OS Async engine - i.e. the poll or kqueue or
  14  * select loop, or a signal reciever, or the diskd/diskthreads/etc modules.
  15  */
  16
  17 class CompletionDispatcher
  18 {
  19
  20 public:
  21
  22     virtual ~CompletionDispatcher() {}
  23
  24     /* dispatch events. This should return true if there were events dispatched
  25      * between the last call to dispatch() returning and this call returning.
  26      */
  27     virtual bool dispatch() = 0;
  28 };
  29
  30 #endif /* SQUID_COMPLETIONDISPATCHER_H */
  31