66 lines
2.6 KiB
C
66 lines
2.6 KiB
C
typedef struct fileNode {
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char *name = NULL;
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int inode_number;
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int permissions;
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char *Symbolink;
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struct treeNode *subdirectory;
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struct fileNode *next;
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} FileNode;
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typedef struct {
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int size;
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FileNode **table;
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} HashTable;
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typedef struct treeNode {
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char *dirName;
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HashTable *contents;
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struct treeNode *parent;
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FileNode *self_info; //self fileNode infromation
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} TreeNode;
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typedef struct RenameInfo {
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FileNode *oldFileNode; // The file node being renamed.
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FileNode *oldParentNode; // The parent directory of the file node being renamed.
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FileNode *newParentNode; // The target parent directory where the file node will be moved.
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char *newName; // The new name of the file node after the rename.
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FileNode *newFileNode; // The new file node, if one already exists at the target location.
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bool exchangeExist; // Flag to indicate if the rename should replace an existing file node.
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} RenameInfo;
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/*for root*/
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TreeNode *fischl_init_entry(int new_inode_number, const char *fileName, INode_Data *new_inode);
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/*the to be added file in add_entry should be parent-child relationship with treenode, otherwise will wrong */
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/*see Add_FindFiletest in dir_API.cpp*/
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int fischl_add_entry_for_cache(TreeNode *parent, int new_inode_number, const char *fileName, INode_Data *new_inode, FileNode *file);
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int fischl_add_entry(TreeNode *parent, int new_inode_number, const char *fileName, INode_Data *new_inode);
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int fischl_rm_entry(TreeNode *parent, const char *fileName);
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/*if want to use dir mode use the subdirectory treeNode pointer */
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//e.g. FileNode *Dirnode = fischl_find_entry(); can see file inside with Dirnode->subdirectory
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//e.g. go to the current Dirnode parent directory, use TreeNode *get_Dir_parent = Dirnode->subdirectory->parent;
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FileNode *fischl_find_entry(TreeNode *root, const char *path);
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void freeTree(TreeNode *node);
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/*for debug use*/
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TreeNode *createDirectory(const char *dirName, TreeNode *parent, int hashSize);
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TreeNode *find_parentPath(TreeNode *root, const char *path);
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struct DirectoryEntry {
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u_int64_t inode_number;
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char file_name[256];
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void serialize(char* buffer) {
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u_int64_t t = inode_number;
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for (int j = 0; j < 8; j++){
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buffer[j] = t & (((u_int64_t)1<<(8))-1);
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t >>= 8;
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}
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strcpy(buffer+8, file_name);
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}
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void deserialize(char* buffer) {
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inode_number = 0;
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for (int j = 0; j < 8; j++)
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inode_number = inode_number | (((u_int64_t)(unsigned char)buffer[j])<<(8*j));
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strcpy(file_name, buffer+8);
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}
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};
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