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/* $OpenBSD: rf_diskevent.h,v 1.1 1999/01/11 14:29:16 niklas Exp $ */
/* $NetBSD: rf_diskevent.h,v 1.1 1998/11/13 04:20:28 oster Exp $ */
/*
* rf_diskevent.h
* Adapted from original code by David Kotz (1994)
*
* The disk-device module is event driven. This module keeps the event
* request mechanism, which is based on proteus SimRequests,
* abstracted away from the bulk of the disk device code.
*
* Functions
* DDEventInit
* DDEventRequest
* DDEventPrint
* DDEventCancel
*/
/* :
* Log: rf_diskevent.h,v
* Revision 1.10 1996/06/10 11:55:47 jimz
* Straightened out some per-array/not-per-array distinctions, fixed
* a couple bugs related to confusion. Added shutdown lists. Removed
* layout shutdown function (now subsumed by shutdown lists).
*
* Revision 1.9 1996/06/07 21:33:04 jimz
* begin using consistent types for sector numbers,
* stripe numbers, row+col numbers, recon unit numbers
*
* Revision 1.8 1996/06/02 17:31:48 jimz
* Moved a lot of global stuff into array structure, where it belongs.
* Fixed up paritylogging, pss modules in this manner. Some general
* code cleanup. Removed lots of dead code, some dead files.
*
* Revision 1.7 1996/05/30 11:29:41 jimz
* Numerous bug fixes. Stripe lock release code disagreed with the taking code
* about when stripes should be locked (I made it consistent: no parity, no lock)
* There was a lot of extra serialization of I/Os which I've removed- a lot of
* it was to calculate values for the cache code, which is no longer with us.
* More types, function, macro cleanup. Added code to properly quiesce the array
* on shutdown. Made a lot of stuff array-specific which was (bogusly) general
* before. Fixed memory allocation, freeing bugs.
*
* Revision 1.6 1996/05/27 18:56:37 jimz
* more code cleanup
* better typing
* compiles in all 3 environments
*
* Revision 1.5 1996/05/18 19:51:34 jimz
* major code cleanup- fix syntax, make some types consistent,
* add prototypes, clean out dead code, et cetera
*
* Revision 1.4 1995/12/01 15:57:16 root
* added copyright info
*
*/
#ifndef _RF__RF_DISKEVENT_H_
#define _RF__RF_DISKEVENT_H_
#include "rf_types.h"
#include "rf_heap.h"
#if !defined(__NetBSD__) && !defined(__OpenBSD__)
#include "time.h"
#endif
#define RF_DD_NOTHING_THERE (-1)
#define RF_DD_DAGEVENT_ROW (-3)
#define RF_DD_DAGEVENT_COL RF_DD_DAGEVENT_ROW
extern RF_TICS_t rf_cur_time;
/*
* list of disk-device request types,
* initialized in diskdevice.c,
* used in diskevent.c
*/
typedef void (*RF_DDhandler)(int disk, RF_TICS_t eventTime);
struct RF_dd_handlers_s {
RF_DDhandler handler; /* function implementing this event type */
char name[20]; /* name of that event type */
};
extern struct RF_dd_handlers_s rf_DDhandlers[];
int rf_DDEventInit(RF_ShutdownList_t **listp);
void rf_DDEventRequest(RF_TICS_t eventTime, int (*CompleteFunc)(),
void *argument, RF_Owner_t owner, RF_RowCol_t row, RF_RowCol_t col,
RF_Raid_t *raidPtr, void *diskid);
void rf_DAGEventRequest(RF_TICS_t eventTime, RF_Owner_t owner,
RF_RowCol_t row, RF_RowCol_t col, RF_RaidAccessDesc_t *desc,
RF_Raid_t *raidPtr);
void rf_DDPrintRequests(void);
int rf_ProcessEvent(void);
RF_Owner_t rf_GetCurrentOwner(void);
void rf_SetCurrentOwner(RF_Owner_t owner);
RF_TICS_t rf_CurTime(void);
#endif /* !_RF__RF_DISKEVENT_H_ */
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