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
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2006 The ScummVM project
*
* 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.
*/
class RoninCDFilesystemNode : public AbstractFilesystemNode {
protected:
String _displayName;
bool _isDirectory;
bool _isValid;
String _path;
public:
RoninCDFilesystemNode();
RoninCDFilesystemNode(const String &path, bool verify);
virtual String displayName() const { return _displayName; }
virtual bool isValid() const { return _isValid; }
virtual bool isDirectory() const { return _isDirectory; }
virtual String path() const { return _path; }
virtual bool listDir(AbstractFSList &list, ListMode mode) const;
virtual AbstractFilesystemNode *parent() const;
virtual AbstractFilesystemNode *child(const String &name) const;
};
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;
}
AbstractFilesystemNode *AbstractFilesystemNode::getCurrentDirectory() {
// Since there is no way to _set_ the current directory,
// it will always be /...
return getRoot();
}
AbstractFilesystemNode *AbstractFilesystemNode::getRoot() {
return new RoninCDFilesystemNode();
}
AbstractFilesystemNode *AbstractFilesystemNode::getNodeForPath(const String &path) {
return new RoninCDFilesystemNode(path, true);
}
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;
}
}
}
bool RoninCDFilesystemNode::listDir(AbstractFSList &myList, ListMode mode) const {
assert(_isDirectory);
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::parent() const {
if (_path == "/")
return 0;
const char *start = _path.c_str();
const char *end = lastPathComponent(_path);
RoninCDFilesystemNode *p = new RoninCDFilesystemNode(String(start, end - start), false);
return p;
}
AbstractFilesystemNode *RoninCDFilesystemNode::child(const String &name) 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 += name;
RoninCDFilesystemNode *p = new RoninCDFilesystemNode(newPath, true);
return p;
}
#endif // defined(__DC__)
|
