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Added filesystem drivers.
[refind] / filesystems / fsw_base.h
1 /* $Id: fsw_base.h 29125 2010-05-06 09:43:05Z vboxsync $ */
2 /** @file
3 * fsw_base.h - Base definitions switch.
4 */
5
6 /*
7 * Copyright (C) 2010 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18 /*-
19 * This code is based on:
20 *
21 * Copyright (c) 2006 Christoph Pfisterer
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions are
25 * met:
26 *
27 * * Redistributions of source code must retain the above copyright
28 * notice, this list of conditions and the following disclaimer.
29 *
30 * * Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the
33 * distribution.
34 *
35 * * Neither the name of Christoph Pfisterer nor the names of the
36 * contributors may be used to endorse or promote products derived
37 * from this software without specific prior written permission.
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
40 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
41 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
42 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
43 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
45 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
46 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
47 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
48 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
49 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
50 */
51
52 #ifndef _FSW_BASE_H_
53 #define _FSW_BASE_H_
54 //#define HOST_EFI 1
55 #define VBOX
56
57 #ifdef VBOX
58 #include "VBoxFswParam.h"
59 #endif
60
61 //#include <Protocol/MsgLog.h>
62
63 #ifndef FSW_DEBUG_LEVEL
64 /**
65 * Global debugging level. Can be set locally for the scope of a single
66 * file by defining the macro before fsw_base.h is included.
67 */
68 #define FSW_DEBUG_LEVEL 0
69 #endif
70
71
72 #ifdef HOST_EFI
73 #include "fsw_efi_base.h"
74 #endif
75
76 #ifdef HOST_POSIX
77 #include "fsw_posix_base.h"
78 #endif
79
80 // message printing
81
82 #if FSW_DEBUG_LEVEL >= 1
83 #define FSW_MSG_ASSERT(params) FSW_MSGFUNC params
84 #else
85 #define FSW_MSG_ASSERT(params)
86 #endif
87
88 #if FSW_DEBUG_LEVEL >= 2
89 #define FSW_MSG_DEBUG(params) FSW_MSGFUNC params
90 #else
91 #define FSW_MSG_DEBUG(params)
92 #endif
93
94 #if FSW_DEBUG_LEVEL >= 3
95 #define FSW_MSG_DEBUGV(params) FSW_MSGFUNC params
96 #else
97 #define FSW_MSG_DEBUGV(params)
98 #endif
99
100
101 // Documentation for system-dependent defines
102
103 /**
104 * \typedef fsw_s8
105 * Signed 8-bit integer.
106 */
107
108 /**
109 * \typedef fsw_u8
110 * Unsigned 8-bit integer.
111 */
112
113 /**
114 * \typedef fsw_s16
115 * Signed 16-bit integer.
116 */
117
118 /**
119 * \typedef fsw_u16
120 * Unsigned 16-bit integer.
121 */
122
123 /**
124 * \typedef fsw_s32
125 * Signed 32-bit integer.
126 */
127
128 /**
129 * \typedef fsw_u32
130 * Unsigned 32-bit integer.
131 */
132
133 /**
134 * \typedef fsw_s64
135 * Signed 64-bit integer.
136 */
137
138 /**
139 * \typedef fsw_u64
140 * Unsigned 64-bit integer.
141 */
142
143
144 /**
145 * \def fsw_alloc(size,ptrptr)
146 * Allocate memory on the heap. This function or macro allocates \a size
147 * bytes of memory using host-specific methods. The address of the
148 * allocated memory block is stored into the pointer variable pointed
149 * to by \a ptrptr. A status code is returned; FSW_SUCCESS if the block
150 * was allocated or FSW_OUT_OF_MEMORY if there is not enough memory
151 * to allocated the requested block.
152 */
153
154 /**
155 * \def fsw_free(ptr)
156 * Release allocated memory. This function or macro returns an allocated
157 * memory block to the heap for reuse. Does not return a status.
158 */
159
160 /**
161 * \def fsw_memcpy(dest,src,size)
162 * Copies a block of memory from \a src to \a dest. The two memory blocks
163 * must not overlap, or the result of the operation will be undefined.
164 * Does not return a status.
165 */
166
167 /**
168 * \def fsw_memeq(dest,src,size)
169 * Compares two blocks of memory for equality. Returns boolean true if the
170 * memory blocks are equal, boolean false if they are different.
171 */
172
173 /**
174 * \def fsw_memzero(dest,size)
175 * Initializes a block of memory with zeros. Does not return a status.
176 */
177
178
179 #endif