blob: 30ad2d70d466ad1235e2265055ba1b8c6e4cbc60 (
plain) (
blame)
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
|
#include "VFS.ns.h"
#include <VFS/FileNode.class.h>
namespace VFS {
DirectoryNode *rootNode;
//TODO : mount stuff
bool setRootNode(DirectoryNode* node) {
rootNode = node;
return true;
}
DirectoryNode* getRootNode() {
return rootNode;
}
FSNode* find(const String& path, FSNode* start) {
if (start == 0) start = rootNode;
Vector<String> p = path.split("/");
FSNode* node = start;
if (p[0].empty()) node = rootNode; //Empty first element means string starts with "/"
for (u32int i = 0; i < p.size(); i++) {
if (p[i] == "..") {
node = node->getParent();
} else if (!p[i].empty() and p[i] != ".") {
if (node->type() == NT_DIRECTORY) {
node = ((DirectoryNode*)node)->getChild(p[i]);
} else {
node = NULL;
}
}
if (node == NULL) return node;
}
return node;
}
FSNode* createFile(const String& path, FSNode* start) {
if (find(path, start) != NULL) return NULL; //Something already has that name.
if (start == 0) start = rootNode;
Vector<String> p = path.split("/");
String name = p.back();
p.pop();
FSNode* node = start;
if (!path.empty()) {
if (p[0].empty()) node = rootNode;
for (u32int i = 0; i < p.size(); i++) {
if (p[i] == "..") {
node = node->getParent();
} else if (!p[i].empty() and p[i] != ".") {
if (node->type() == NT_DIRECTORY) {
node = ((DirectoryNode*)node)->getChild(p[i]);
} else {
node = NULL;
}
}
if (node == NULL) return node;
}
}
if (node->type() == NT_DIRECTORY) {
return ((DirectoryNode*)node)->createFile(name);
} else {
return NULL;
}
}
FSNode* createDirectory(const String& path, FSNode* start) {
if (find(path, start) != NULL) return NULL; //Something already has that name.
if (start == 0) start = rootNode;
Vector<String> p = path.split("/");
String name = p.back();
p.pop();
FSNode* node = start;
if (!path.empty()) {
if (p[0].empty()) node = rootNode;
for (u32int i = 0; i < p.size(); i++) {
if (p[i] == "..") {
node = node->getParent();
} else if (!p[i].empty() and p[i] != ".") {
if (node->type() == NT_DIRECTORY) {
node = ((DirectoryNode*)node)->getChild(p[i]);
} else {
node = NULL;
}
}
if (node == NULL) return node;
}
}
if (node->type() == NT_DIRECTORY) {
return ((DirectoryNode*)node)->createDirectory(name);
} else {
return NULL;
}
}
bool remove(const String& path, FSNode* start) {
FSNode* node = find(path, start);
if (node == NULL) return false;
FSNode* parent = node->getParent();
if (parent == NULL) return false;
if (parent->type() == NT_DIRECTORY) {
return ((DirectoryNode*)parent)->remove(node);
} else {
return false; //Something wierd happenned
}
}
String path(FSNode* node) {
String path;
while (node != NULL) {
String t = "/";
t += node->getName();
if (t != "//") {
t += path;
path = t;
}
node = node->getParent();
}
if (path.empty()) path = "/";
return path;
}
}
|
