sys/dev/raidframe/rf_mcpair.h

   1 /*      $NetBSD: rf_mcpair.h,v 1.7.18.3 2004/09/21 13:32:53 skrll Exp $ */
   2 /*
   3  * Copyright (c) 1995 Carnegie-Mellon University.
   4  * All rights reserved.
   5  *
   6  * Author: Mark Holland
   7  *
   8  * Permission to use, copy, modify and distribute this software and
   9  * its documentation is hereby granted, provided that both the copyright
  10  * notice and this permission notice appear in all copies of the
  11  * software, derivative works or modified versions, and any portions
  12  * thereof, and that both notices appear in supporting documentation.
  13  *
  14  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  15  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  16  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  17  *
  18  * Carnegie Mellon requests users of this software to return to
  19  *
  20  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  21  *  School of Computer Science
  22  *  Carnegie Mellon University
  23  *  Pittsburgh PA 15213-3890
  24  *
  25  * any improvements or extensions that they make and grant Carnegie the
  26  * rights to redistribute these changes.
  27  */
  28
  29 /* rf_mcpair.h
  30  * see comments in rf_mcpair.c
  31  */
  32
  33 #ifndef _RF__RF_MCPAIR_H_
  34 #define _RF__RF_MCPAIR_H_
  35
  36 #include <dev/raidframe/raidframevar.h>
  37 #include "rf_threadstuff.h"
  38
  39 struct RF_MCPair_s {
  40         RF_DECLARE_MUTEX(mutex)
  41         RF_DECLARE_COND(cond)
  42         int     flag;
  43 };
  44 #define RF_WAIT_MCPAIR(_mcp) \
  45         ltsleep(&((_mcp)->cond), PRIBIO, "mcpair", 0, &((_mcp)->mutex))
  46
  47 int     rf_ConfigureMCPair(RF_ShutdownList_t ** listp);
  48 RF_MCPair_t *rf_AllocMCPair(void);
  49 void    rf_FreeMCPair(RF_MCPair_t * t);
  50 void    rf_MCPairWakeupFunc(RF_MCPair_t * t);
  51
  52 #endif                          /* !_RF__RF_MCPAIR_H_ */