1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/* $OpenBSD: rf_callback.h,v 1.1 1999/01/11 14:29:00 niklas Exp $ */
/* $NetBSD: rf_callback.h,v 1.1 1998/11/13 04:20:26 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Mark Holland
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*****************************************************************************************
*
* callback.h -- header file for callback.c
*
* the reconstruction code must manage concurrent I/Os on multiple drives.
* it sometimes needs to suspend operation on a particular drive until some
* condition occurs. we can't block the thread, of course, or we wouldn't
* be able to manage our other outstanding I/Os. Instead we just suspend
* new activity on the indicated disk, and create a callback descriptor and
* put it someplace where it will get invoked when the condition that's
* stalling us has cleared. When the descriptor is invoked, it will call
* a function that will restart operation on the indicated disk.
*
****************************************************************************************/
/* :
* Log: rf_callback.h,v
* Revision 1.8 1996/08/01 15:57:28 jimz
* minor cleanup
*
* Revision 1.7 1996/07/27 23:36:08 jimz
* Solaris port of simulator
*
* Revision 1.6 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 1.5 1996/05/23 21:46:35 jimz
* checkpoint in code cleanup (release prep)
* lots of types, function names have been fixed
*
* Revision 1.4 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 1.3 1996/05/17 16:30:46 jimz
* add prototypes
*
* Revision 1.2 1995/12/01 15:15:55 root
* added copyright info
*
*/
#ifndef _RF__RF_CALLBACK_H_
#define _RF__RF_CALLBACK_H_
#include "rf_types.h"
struct RF_CallbackDesc_s {
void (*callbackFunc)(RF_CBParam_t); /* function to call */
RF_CBParam_t callbackArg; /* args to give to function, or just info about this callback */
RF_CBParam_t callbackArg2;
RF_RowCol_t row; /* disk row and column IDs to give to the callback func */
RF_RowCol_t col;
RF_CallbackDesc_t *next; /* next entry in list */
};
int rf_ConfigureCallback(RF_ShutdownList_t **listp);
RF_CallbackDesc_t *rf_AllocCallbackDesc(void);
void rf_FreeCallbackDesc(RF_CallbackDesc_t *p);
#endif /* !_RF__RF_CALLBACK_H_ */
|
