src/AsyncCallQueue.h

   1
   2 /*
   3  * $Id$
   4  *
   5  */
   6
   7 #ifndef SQUID_ASYNCCALLQUEUE_H
   8 #define SQUID_ASYNCCALLQUEUE_H
   9
  10 #include "squid.h"
  11 #include "AsyncCall.h"
  12
  13 //class AsyncCall;
  14
  15 // The queue of asynchronous calls. All calls are fired during a single main
  16 // loop iteration until the queue is exhausted
  17 class AsyncCallQueue
  18 {
  19 public:
  20     // there is only one queue
  21     static AsyncCallQueue &Instance();
  22
  23     // make this async call when we get a chance
  24     void schedule(AsyncCall::Pointer &call);
  25
  26     // fire all scheduled calls; returns true if at least one was fired
  27     bool fire();
  28
  29 private:
  30     AsyncCallQueue();
  31
  32     void fireNext();
  33
  34     AsyncCall::Pointer theHead;
  35     AsyncCall::Pointer theTail;
  36
  37     static AsyncCallQueue *TheInstance;
  38 };
  39
  40 #endif /* SQUID_ASYNCCALLQUEUE_H */