1 files changed, 135 insertions, 0 deletions
diff --git a/Source/Kernel/VFS/VFS.ns.cpp b/Source/Kernel/VFS/VFS.ns.cpp
new file mode 100644
index 0000000..6db791a
--- /dev/null
+++ b/Source/Kernel/VFS/VFS.ns.cpp
@@ -0,0 +1,135 @@
+#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 (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 (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;
+}
+
+}