src/rx/rx_event.h

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /* Event package */
  11
  12 #ifndef OPENAFS_RX_EVENT_H
  13 #define OPENAFS_RX_EVENT_H
  14
  15 /* This routine must be called to initialize the event package.
  16  * nEvents is the number of events to allocate in a batch whenever
  17  * more are needed.  If this is 0, a default number (10) will be
  18  * allocated. */
  19 extern void rxevent_Init( int nEvents, void (*scheduler)(void) );
  20
  21 /* Arrange for the indicated event at the appointed time.  when is a
  22  * "struct clock", in the clock.c time base */
  23 struct clock;
  24 struct rxevent;
  25 extern struct rxevent *rxevent_Post(struct clock *when, struct clock *now,
  26                                     void (*func) (struct rxevent *, void *,
  27                                                   void *, int),
  28                                     void *arg, void *arg1, int arg2);
  29
  30 /* Remove the indicated event from the event queue.  The event must be
  31  * pending.  Note that a currently executing event may not cancel itself.
  32  */
  33 extern int rxevent_Cancel(struct rxevent **);
  34
  35 /* The actions specified for each event that has reached the current clock
  36  * time will be taken.  The current time returned by GetTime is used
  37  * (warning:  this may be an old time if the user has not called
  38  * clock_NewTime)
  39  */
  40 extern int rxevent_RaiseEvents(struct clock *wait);
  41
  42 /* Acquire a reference to an event */
  43 extern struct rxevent *rxevent_Get(struct rxevent *event);
  44
  45 /* Release a reference to an event */
  46 extern void rxevent_Put(struct rxevent **event);
  47
  48 /* Shutdown the event package */
  49 extern void shutdown_rxevent(void);
  50
  51 #endif /* _EVENT_ */