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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#if defined(__DC__)
#include "common/stdafx.h"
#include "backends/fs/abstract-fs.h"
#include <ronin/cdfs.h>
#include <stdio.h>
#include <unistd.h>
/**
* Implementation of the ScummVM file system API based on Ronin.
*
* Parts of this class are documented in the base interface class, AbstractFilesystemNode.
*/
class RoninCDFilesystemNode : public AbstractFilesystemNode {
protected:
String _displayName;
String _path;
bool _isDirectory;
bool _isValid;
public:
/**
* Creates a RoninCDFilesystemNode with the root node as path.
*/
RoninCDFilesystemNode();
/**
* Creates a RoninCDFilesystemNode for a given path.
*
* @param path String with the path the new node should point to.
* @param verify true if the isValid and isDirectory flags should be verified during the construction.
*/
RoninCDFilesystemNode(const String &path, bool verify);
virtual bool exists() const { return true; } //FIXME: this is just a stub
virtual String getDisplayName() const { return _displayName; }
virtual String getName() const { return _displayName; }
virtual String getPath() const { return _path; }
virtual bool isDirectory() const { return _isDirectory; }
virtual bool isReadable() const { return true; } //FIXME: this is just a stub
virtual bool isValid() const { return _isValid; }
virtual bool isWritable() const { return true; } //FIXME: this is just a stub
virtual AbstractFilesystemNode *getChild(const String &n) const;
virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
virtual AbstractFilesystemNode *getParent() const;
};
/**
* Returns the last component of a given path.
*
* Examples:
* /foo/bar.txt would return /bar.txt
* /foo/bar/ would return /bar/
*
* @param str String containing the path.
* @return Pointer to the first char of the last component inside str.
*/
static const char *lastPathComponent(const Common::String &str) {
const char *start = str.c_str();
const char *cur = start + str.size() - 2;
while (cur >= start && *cur != '/') {
--cur;
}
return cur + 1;
}
RoninCDFilesystemNode::RoninCDFilesystemNode() {
// The root dir.
_path = "/";
_displayName = _path;
_isValid = true;
_isDirectory = true;
}
RoninCDFilesystemNode::RoninCDFilesystemNode(const String &p, bool verify) {
assert(p.size() > 0);
_path = p;
_displayName = lastPathComponent(_path);
_isValid = true;
_isDirectory = true;
if (verify) {
int fd;
if((fd = open(_path.c_str(), O_RDONLY)) >= 0) {
close(fd);
_isDirectory = false;
}
else if((fd = open(_path.c_str(), O_DIR|O_RDONLY)) >= 0) {
close(fd);
}
else {
_isValid = false;
}
}
}
AbstractFilesystemNode *RoninCDFilesystemNode::getChild(const String &n) const {
// FIXME: Pretty lame implementation! We do no error checking to speak
// of, do not check if this is a special node, etc.
assert(_isDirectory);
String newPath(_path);
if (_path.lastChar() != '/')
newPath += '/';
newPath += n;
return new RoninCDFilesystemNode(newPath, true);
}
bool RoninCDFilesystemNode::getChildren(AbstractFSList &myList, ListMode mode, bool hidden) const {
assert(_isDirectory);
//TODO: honor the hidden flag
DIR *dirp = opendir(_path.c_str());
struct dirent *dp;
if (dirp == NULL)
return false;
// ... loop over dir entries using readdir
while ((dp = readdir(dirp)) != NULL) {
String newPath(_path);
if (newPath.lastChar() != '/')
newPath += '/';
newPath += dp->d_name;
RoninCDFilesystemNode entry(newPath, false);
entry._isDirectory = dp->d_size < 0;
// Skip files that are invalid for some reason (e.g. because we couldn't
// properly stat them).
if (!entry._isValid)
continue;
// Honor the chosen mode
if ((mode == FilesystemNode::kListFilesOnly && entry._isDirectory) ||
(mode == FilesystemNode::kListDirectoriesOnly && !entry._isDirectory))
continue;
if (entry._isDirectory)
entry._path += "/";
myList.push_back(new RoninCDFilesystemNode(entry));
}
closedir(dirp);
return true;
}
AbstractFilesystemNode *RoninCDFilesystemNode::getParent() const {
if (_path == "/")
return 0;
const char *start = _path.c_str();
const char *end = lastPathComponent(_path);
return new RoninCDFilesystemNode(String(start, end - start), false);
}
#endif // defined(__DC__)
|
