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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/** @file
* PDM - Pluggable Device Manager, Async I/O Completion.
*/
/*
* Copyright (C) 2007-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
#ifndef VBOX_INCLUDED_vmm_pdmasynccompletion_h
#define VBOX_INCLUDED_vmm_pdmasynccompletion_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/types.h>
#include <iprt/sg.h>
RT_C_DECLS_BEGIN
/** @defgroup grp_pdm_async_completion The PDM Async I/O Completion API
* @ingroup grp_pdm
* @{
*/
/** Pointer to a PDM async completion template handle. */
typedef struct PDMASYNCCOMPLETIONTEMPLATE *PPDMASYNCCOMPLETIONTEMPLATE;
/** Pointer to a PDM async completion template handle pointer. */
typedef PPDMASYNCCOMPLETIONTEMPLATE *PPPDMASYNCCOMPLETIONTEMPLATE;
/** Pointer to a PDM async completion task handle. */
typedef struct PDMASYNCCOMPLETIONTASK *PPDMASYNCCOMPLETIONTASK;
/** Pointer to a PDM async completion task handle pointer. */
typedef PPDMASYNCCOMPLETIONTASK *PPPDMASYNCCOMPLETIONTASK;
/** Pointer to a PDM async completion endpoint handle. */
typedef struct PDMASYNCCOMPLETIONENDPOINT *PPDMASYNCCOMPLETIONENDPOINT;
/** Pointer to a PDM async completion endpoint handle pointer. */
typedef PPDMASYNCCOMPLETIONENDPOINT *PPPDMASYNCCOMPLETIONENDPOINT;
/**
* Completion callback for devices.
*
* @param pDevIns The device instance.
* @param pvUser User argument.
* @param rc The status code of the completed request.
*/
typedef DECLCALLBACK(void) FNPDMASYNCCOMPLETEDEV(PPDMDEVINS pDevIns, void *pvUser, int rc);
/** Pointer to a FNPDMASYNCCOMPLETEDEV(). */
typedef FNPDMASYNCCOMPLETEDEV *PFNPDMASYNCCOMPLETEDEV;
/**
* Completion callback for drivers.
*
* @param pDrvIns The driver instance.
* @param pvTemplateUser User argument given when creating the template.
* @param pvUser User argument given during request initiation.
* @param rc The status code of the completed request.
*/
typedef DECLCALLBACK(void) FNPDMASYNCCOMPLETEDRV(PPDMDRVINS pDrvIns, void *pvTemplateUser, void *pvUser, int rc);
/** Pointer to a FNPDMASYNCCOMPLETEDRV(). */
typedef FNPDMASYNCCOMPLETEDRV *PFNPDMASYNCCOMPLETEDRV;
/**
* Completion callback for USB devices.
*
* @param pUsbIns The USB device instance.
* @param pvUser User argument.
* @param rc The status code of the completed request.
*/
typedef DECLCALLBACK(void) FNPDMASYNCCOMPLETEUSB(PPDMUSBINS pUsbIns, void *pvUser, int rc);
/** Pointer to a FNPDMASYNCCOMPLETEUSB(). */
typedef FNPDMASYNCCOMPLETEUSB *PFNPDMASYNCCOMPLETEUSB;
/**
* Completion callback for internal.
*
* @param pVM The cross context VM structure.
* @param pvUser User argument for the task.
* @param pvUser2 User argument for the template.
* @param rc The status code of the completed request.
*/
typedef DECLCALLBACK(void) FNPDMASYNCCOMPLETEINT(PVM pVM, void *pvUser, void *pvUser2, int rc);
/** Pointer to a FNPDMASYNCCOMPLETEINT(). */
typedef FNPDMASYNCCOMPLETEINT *PFNPDMASYNCCOMPLETEINT;
VMMR3DECL(int) PDMR3AsyncCompletionTemplateCreateInternal(PVM pVM, PPPDMASYNCCOMPLETIONTEMPLATE ppTemplate,
PFNPDMASYNCCOMPLETEINT pfnCompleted, void *pvUser2, const char *pszDesc);
VMMR3DECL(int) PDMR3AsyncCompletionTemplateDestroy(PPDMASYNCCOMPLETIONTEMPLATE pTemplate);
VMMR3DECL(int) PDMR3AsyncCompletionEpCreateForFile(PPPDMASYNCCOMPLETIONENDPOINT ppEndpoint,
const char *pszFilename, uint32_t fFlags,
PPDMASYNCCOMPLETIONTEMPLATE pTemplate);
/** @defgroup grp_pdmacep_file_flags Flags for PDMR3AsyncCompletionEpCreateForFile
* @{ */
/** Open the file in read-only mode. */
#define PDMACEP_FILE_FLAGS_READ_ONLY RT_BIT_32(0)
/** Whether the file should not be write protected.
* The default is to protect the file against writes by other processes
* when opened in read/write mode to prevent data corruption by
* concurrent access which can occur if the local writeback cache is enabled.
*/
#define PDMACEP_FILE_FLAGS_DONT_LOCK RT_BIT_32(2)
/** Open the endpoint with the host cache enabled. */
#define PDMACEP_FILE_FLAGS_HOST_CACHE_ENABLED RT_BIT_32(3)
/** @} */
VMMR3DECL(void) PDMR3AsyncCompletionEpClose(PPDMASYNCCOMPLETIONENDPOINT pEndpoint);
VMMR3DECL(int) PDMR3AsyncCompletionEpRead(PPDMASYNCCOMPLETIONENDPOINT pEndpoint, RTFOFF off,
PCRTSGSEG paSegments, unsigned cSegments,
size_t cbRead, void *pvUser,
PPPDMASYNCCOMPLETIONTASK ppTask);
VMMR3DECL(int) PDMR3AsyncCompletionEpWrite(PPDMASYNCCOMPLETIONENDPOINT pEndpoint, RTFOFF off,
PCRTSGSEG paSegments, unsigned cSegments,
size_t cbWrite, void *pvUser,
PPPDMASYNCCOMPLETIONTASK ppTask);
VMMR3DECL(int) PDMR3AsyncCompletionEpFlush(PPDMASYNCCOMPLETIONENDPOINT pEndpoint, void *pvUser, PPPDMASYNCCOMPLETIONTASK ppTask);
VMMR3DECL(int) PDMR3AsyncCompletionEpGetSize(PPDMASYNCCOMPLETIONENDPOINT pEndpoint, uint64_t *pcbSize);
VMMR3DECL(int) PDMR3AsyncCompletionEpSetSize(PPDMASYNCCOMPLETIONENDPOINT pEndpoint, uint64_t cbSize);
VMMR3DECL(int) PDMR3AsyncCompletionEpSetBwMgr(PPDMASYNCCOMPLETIONENDPOINT pEndpoint, const char *pszBwMgr);
VMMR3DECL(int) PDMR3AsyncCompletionTaskCancel(PPDMASYNCCOMPLETIONTASK pTask);
VMMR3DECL(int) PDMR3AsyncCompletionBwMgrSetMaxForFile(PUVM pUVM, const char *pszBwMgr, uint32_t cbMaxNew);
/** @} */
RT_C_DECLS_END
#endif /* !VBOX_INCLUDED_vmm_pdmasynccompletion_h */
|
