{"header":{"message":"add StateInMem (virtual file tree structure)","description":null,"timestamp":"2026-07-21T03:03:06.024380377Z","authors":[{}]},"hash":"NQZ7HHVI4N6AZEPX67GAZ5V76RYBSH7KANO3XEUWM6D7NAHSTPOAC","authors":[{"login":"phantom","key":"AAAAC3NzaC1lZDI1NTE5AAAAIP9PKBeqBh9i7lpfwbz1e0S9vijakQ65s6hUb0nwdJzd"}],"deps":{"hashes":[["NQZ7HHVI4N6AZEPX67GAZ5V76RYBSH7KANO3XEUWM6D7NAHSTPOAC","add StateInMem (virtual file tree structure)"],["AA",null],["JUPQTI3OYGJJ2ZOEWMWQ5DLSHAY4HUFJESNWRXDAQDFUZF6RW4DAC","init record"]],"deps":["JUPQTI3OYGJJ2ZOEWMWQ5DLSHAY4HUFJESNWRXDAQDFUZF6RW4DAC"],"known":[]},"hunks":[{"FileAdd":{"meta":{"basename":"tree.rs","metadata":0},"context":[{"change":2,"pos":15}],"contents":[{"Add":"use fuser::{"},{"Add":" FileAttr, INodeNo"},{"Add":"};"},{"Add":""},{"Add":"use std::{collections::{HashMap, hash_map::Iter}, time::{SystemTime, UNIX_EPOCH}};"},{"Add":""},{"Add":"const NOW:SystemTime = UNIX_EPOCH;"},{"Add":""},{"Add":"#[derive(Clone, Debug)]"},{"Add":"pub enum StateInMem {"},{"Add":" File {"},{"Add":" file_name: String,"},{"Add":" file_attr: FileAttr,"},{"Add":" contents: String,"},{"Add":" },"},{"Add":" Dir {"},{"Add":" dir_name: String,"},{"Add":" file_attr: FileAttr,"},{"Add":" childs: HashMap"},{"Add":" },"},{"Add":" LazyDir {"},{"Add":" dir_name: String,"},{"Add":" file_attr: FileAttr"},{"Add":" },"},{"Add":" LazyFile {"},{"Add":" file_name: String,"},{"Add":" file_attr: FileAttr"},{"Add":" },"},{"Add":"}"},{"Add":""},{"Add":"#[cfg(test)]"},{"Add":"impl std::fmt::Display for StateInMem {"},{"Add":" fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {"},{"Add":" fn build_tree(node: &StateInMem, depth: usize, ino: Option<&INodeNo>) -> String {"},{"Add":" let indent = \" \".repeat(depth);"},{"Add":" "},{"Add":" let prefix = match ino {"},{"Add":" Some(i) => format!(\"- ino:{:?} \", i),"},{"Add":" None => String::new(),"},{"Add":" };"},{"Add":""},{"Add":" match node {"},{"Add":" StateInMem::Dir { dir_name, childs, .. } => {"},{"Add":" let mut s = format!(\"{}{}dir \\\"{}\\\"\\n\", indent, prefix, dir_name);"},{"Add":" "},{"Add":" let mut sorted_childs: Vec<_> = childs.iter().collect();"},{"Add":" sorted_childs.sort_by_cached_key(|(k, _)| format!(\"{:?}\", k));"},{"Add":""},{"Add":" for (child_ino, child) in sorted_childs {"},{"Add":" s.push_str(&build_tree(child, depth + 1, Some(child_ino)));"},{"Add":" s.push('\\n');"},{"Add":" }"},{"Add":" "},{"Add":" s.trim_end().to_string()"},{"Add":" }"},{"Add":" StateInMem::File { file_name, .. } => {"},{"Add":" format!(\"{}{}file \\\"{}\\\"\", indent, prefix, file_name)"},{"Add":" }"},{"Add":" StateInMem::LazyDir { dir_name, .. } => {"},{"Add":" format!(\"{}{}lazydir \\\"{}\\\"\", indent, prefix, dir_name)"},{"Add":" }"},{"Add":" StateInMem::LazyFile { file_name, .. } => {"},{"Add":" format!(\"{}{}lazyfile \\\"{}\\\"\", indent, prefix, file_name)"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" write!(f, \"{}\", build_tree(self, 0, None))"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":"pub trait LazyResolver { "},{"Add":" // fn gen_new_inode(&mut self) -> INodeNo;"},{"Add":" // fn gen_file_contents(&self) -> String /* TODO */;"},{"Add":" fn gen_children(&mut self) -> HashMap;"},{"Add":"}"},{"Add":""},{"Add":"impl StateInMem {"},{"Add":" fn get_fileattr(&self) -> &FileAttr {"},{"Add":" match self {"},{"Add":" Self::Dir { file_attr, .. } => file_attr,"},{"Add":" Self::File { file_attr, .. } => file_attr,"},{"Add":" Self::LazyDir { file_attr, .. } => file_attr,"},{"Add":" Self::LazyFile { file_attr, .. } => file_attr,"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" /// return resolved stateinmem tree."},{"Add":" pub fn get_file_obj(&self, target_ino: INodeNo /*already generated*/) -> Option<&StateInMem> {"},{"Add":" match &self {"},{"Add":" Self::Dir { childs , .. } => {"},{"Add":" if let Some(a) = childs.get(&target_ino) {"},{"Add":" Some(a)"},{"Add":" } else {"},{"Add":" childs"},{"Add":" .iter()"},{"Add":" .find(|(_, stateinmem)| stateinmem.get_file_obj(target_ino).is_some())"},{"Add":" .map(|(_, b)| b)"},{"Add":" }"},{"Add":" }"},{"Add":" _ => {"},{"Add":" None"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" /// for lookup function"},{"Add":" pub fn get_file_obj_with_parent(&self, cur_ino: &INodeNo, parent_ino: &INodeNo, name: &str) -> Option<&FileAttr> {"},{"Add":" match &self {"},{"Add":" Self::File { file_name, file_attr, .. } => {"},{"Add":" if cur_ino == parent_ino && file_name == name {"},{"Add":" Some(file_attr)"},{"Add":" } else {"},{"Add":" None"},{"Add":" }"},{"Add":" }"},{"Add":" Self::Dir { childs , .. } => {"},{"Add":" childs"},{"Add":" .iter()"},{"Add":" .find_map(|(cur_ino, stateinmem)| stateinmem.get_file_obj_with_parent(cur_ino, parent_ino, name))"},{"Add":" }"},{"Add":" Self::LazyFile { file_name, file_attr } => {"},{"Add":" if cur_ino == parent_ino && file_name == name {"},{"Add":" Some(file_attr)"},{"Add":" } else {"},{"Add":" None"},{"Add":" }"},{"Add":" }"},{"Add":" Self::LazyDir { .. } => {"},{"Add":" None"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" pub fn get_crrent_dir(&mut self, cur_ino: &INodeNo, ino: &INodeNo, resolver: &mut R) -> Option> "},{"Add":" where R: LazyResolver"},{"Add":" {"},{"Add":" match self {"},{"Add":" Self::Dir { childs, .. } => {"},{"Add":" if cur_ino == ino {"},{"Add":" Some(childs.iter())"},{"Add":" } else {"},{"Add":" childs"},{"Add":" .iter_mut()"},{"Add":" .find_map(|(cur_ino, stateinmem)| stateinmem.get_crrent_dir(cur_ino, ino, resolver))"},{"Add":" }"},{"Add":" }"},{"Add":" Self::LazyDir { dir_name, file_attr } => {"},{"Add":" let childs = resolver.gen_children();"},{"Add":""},{"Add":" *self = StateInMem::Dir { "},{"Add":" dir_name: dir_name.to_string(), "},{"Add":" file_attr: *file_attr,"},{"Add":" childs"},{"Add":" };"},{"Add":" match self {"},{"Add":" Self::Dir { childs , .. } => {"},{"Add":" Some(childs.iter())"},{"Add":" }"},{"Add":" _ => None"},{"Add":" }"},{"Add":" }"},{"Add":" _ => {"},{"Add":" None"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" pub fn get_crrent_dir2(&mut self, target_ino: &INodeNo, resolver: &mut R) -> Option> "},{"Add":" where R: LazyResolver"},{"Add":" {"},{"Add":" let mut stack: Vec<(&INodeNo, &mut StateInMem)> = Vec::new();"},{"Add":""},{"Add":" let ino = self.get_fileattr().ino;"},{"Add":" stack.push((&ino, self));"},{"Add":""},{"Add":" while let Some((current_ino, state)) = stack.pop() {"},{"Add":" if let Self::LazyDir { dir_name, file_attr } = state {"},{"Add":" let childs = resolver.gen_children();"},{"Add":""},{"Add":" *state = StateInMem::Dir { "},{"Add":" dir_name: dir_name.to_string(), "},{"Add":" file_attr: *file_attr,"},{"Add":" childs"},{"Add":" };"},{"Add":" }"},{"Add":""},{"Add":" if let Self::Dir { childs, .. } = state {"},{"Add":" if current_ino == target_ino {"},{"Add":" return Some(childs.iter());"},{"Add":" } else {"},{"Add":" for i in childs {"},{"Add":" stack.push(i);"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":" }"},{"Add":" None"},{"Add":" }"},{"Add":"}"},{"Add":""},{"Add":""},{"Add":"#[cfg(test)]"},{"Add":"mod tree_test {"},{"Add":" use crate::tree::{LazyResolver, StateInMem};"},{"Add":""},{"Add":" use fuser::{"},{"Add":" FileAttr, FileType, INodeNo"},{"Add":" };"},{"Add":""},{"Add":" use std::{collections::HashMap, time::{Duration, SystemTime, UNIX_EPOCH}};"},{"Add":""},{"Add":" const ROOT_DIR_INO: u64 = 1;"},{"Add":" const SUB_DIR_INO: u64 = 4;"},{"Add":" const HELLO_FILE_INO: u64 = 2;"},{"Add":" const WORLD_FILE_INO: u64 = 3;"},{"Add":" const LAZY_DIR_INO: u64 = 5;"},{"Add":" const LAZY_FILE_INO: u64 = 6;"},{"Add":""},{"Add":" const HELLO_FILE_NAME: &str = \"hello.txt\";"},{"Add":" const WORLD_FILE_NAME: &str = \"world.txt\";"},{"Add":" const SUB_DIR_NAME: &str = \"subdir\";"},{"Add":" const HELLO_CONTENT: &str = \"Hello, FUSE with Rust!\\n\";"},{"Add":" const WORLD_CONTENT: &str = \"World, FUSE with Rust!\\n\";"},{"Add":""},{"Add":" const TTL: Duration = Duration::from_secs(1);"},{"Add":""},{"Add":" const NOW:SystemTime = UNIX_EPOCH;"},{"Add":""},{"Add":" fn set_up_test_tree() -> StateInMem {"},{"Add":" let tree = StateInMem::Dir {"},{"Add":""},{"Add":" dir_name: \"root\".to_string(),"},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo::ROOT,"},{"Add":" size: 0,"},{"Add":" blocks: 0,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::Directory,"},{"Add":" perm: 0o755, // rwxr-xr-x"},{"Add":" nlink: 3, // \".\" \"..\" \"subdir\""},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" },"},{"Add":""},{"Add":" childs: vec!["},{"Add":" (INodeNo(HELLO_FILE_INO), StateInMem::LazyFile { "},{"Add":" file_name: \"hello.txt\".to_string(), "},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(HELLO_FILE_INO),"},{"Add":" size: HELLO_CONTENT.len() as u64,"},{"Add":" blocks: 1,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::RegularFile,"},{"Add":" perm: 0o644, // rw-r--r--"},{"Add":" nlink: 1,"},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" }"},{"Add":" }),"},{"Add":""},{"Add":" ("},{"Add":" INodeNo(SUB_DIR_INO),"},{"Add":" StateInMem::Dir {"},{"Add":" dir_name: \"subdir\".to_string(), "},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(SUB_DIR_INO),"},{"Add":" size: 0,"},{"Add":" blocks: 0,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::Directory,"},{"Add":" perm: 0o755, // rwxr-xr-x"},{"Add":" nlink: 2, // \".\" \"..\""},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" },"},{"Add":""},{"Add":" childs: vec!["},{"Add":" ("},{"Add":" INodeNo(WORLD_FILE_INO),"},{"Add":" StateInMem::LazyFile {"},{"Add":" file_name: \"world.txt\".to_string(),"},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(WORLD_FILE_INO),"},{"Add":" size: WORLD_CONTENT.len() as u64,"},{"Add":" blocks: 1,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::RegularFile,"},{"Add":" perm: 0o644, // rw-r--r--"},{"Add":" nlink: 1,"},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" }"},{"Add":" },"},{"Add":" )"},{"Add":" ].iter().fold(HashMap::new(), |mut acc, (k, v)| {"},{"Add":" acc.insert(k.clone(), v.clone()); "},{"Add":" acc"},{"Add":" })"},{"Add":" }),"},{"Add":""},{"Add":" ("},{"Add":" INodeNo(LAZY_DIR_INO),"},{"Add":" StateInMem::LazyDir { "},{"Add":" dir_name: \"lazydir\".to_string(),"},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(LAZY_DIR_INO),"},{"Add":" size: 0,"},{"Add":" blocks: 0,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::Directory,"},{"Add":" perm: 0o755, // rwxr-xr-x"},{"Add":" nlink: 2, // \".\" \"..\""},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" }"},{"Add":" }"},{"Add":" )"},{"Add":" ].iter().fold(HashMap::new(), |mut acc, (k, v)| {acc.insert(k.clone(), v.clone()); acc})};"},{"Add":" tree"},{"Add":" }"},{"Add":""},{"Add":" struct TestResolver;"},{"Add":""},{"Add":" impl LazyResolver for TestResolver {"},{"Add":" fn gen_children(&mut self, ) -> HashMap {"},{"Add":" let mut r_hash_map = HashMap::new();"},{"Add":" r_hash_map.insert("},{"Add":" INodeNo(LAZY_FILE_INO), "},{"Add":" StateInMem::LazyFile {"},{"Add":" file_name: \"lazy.txt\".to_string(),"},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(LAZY_FILE_INO),"},{"Add":" size: WORLD_CONTENT.len() as u64,"},{"Add":" blocks: 1,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::RegularFile,"},{"Add":" perm: 0o644, // rw-r--r--"},{"Add":" nlink: 1,"},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" }"},{"Add":" });"},{"Add":" r_hash_map"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" fn debug_print_dir(dir_children: &HashMap) {"},{"Add":" for (ino, stateinmem) in dir_children {"},{"Add":" println!(\"ino{:?} name {}\", ino, stateinmem);"},{"Add":" }"},{"Add":" }"},{"Add":""},{"Add":" #[test]"},{"Add":" fn test00() {"},{"Add":" let mut tree = set_up_test_tree();"},{"Add":" let mut test_resolver = TestResolver{};"},{"Add":""},{"Add":" // println!(\"{:#?}\", tree);"},{"Add":""},{"Add":" match &tree {"},{"Add":" StateInMem::Dir { dir_name, file_attr, childs } => {"},{"Add":" debug_print_dir(childs);"},{"Add":" }"},{"Add":" _ => {}"},{"Add":" }"},{"Add":" "},{"Add":" println!(\"-----------------------------------------------------------------\");"},{"Add":" if let Some(a) = tree.get_crrent_dir2(&INodeNo(LAZY_DIR_INO), &mut test_resolver) {"},{"Add":" for (ino, sim) in a {"},{"Add":" println!(\"ino: {:?}, {}\", ino, sim);"},{"Add":" }"},{"Add":" }"},{"Add":" println!(\"-----------------------------------------------------------------\");"},{"Add":" match &tree {"},{"Add":" StateInMem::Dir { dir_name, file_attr, childs } => {"},{"Add":" debug_print_dir(childs);"},{"Add":" }"},{"Add":" _ => {}"},{"Add":" }"},{"Add":" }"},{"Add":"}"}]}},{"Edit":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":1,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":49}],"down_context":[{"change":2,"pos":50}],"flag":"BLOCK","start":13914,"end":13938,"inode":{"change":2,"pos":49}}},"contents":[{"Add":"mod tree;"},{"Add":"use tree::*;"},{"Add":""}]}},{"Replacement":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":8,"ins":{"up_context":[{"change":2,"pos":245}],"down_context":[{"change":2,"pos":298}],"flag":"BLOCK","start":13939,"end":14040,"inode":{"change":2,"pos":49}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":245},"to":{"change":2,"start":245,"end":298},"introduced_by":2}],"inode":{"change":2,"pos":49}},"ins_contents":[{"Add":"use std::{collections::HashMap, ffi::OsStr, sync::RwLock, time::{Duration, SystemTime, UNIX_EPOCH}};"}],"del_contents":[{"Del":"use std::{ffi::OsStr, time::{Duration, UNIX_EPOCH}};\n"}]}},{"Edit":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":14,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":418}],"down_context":[{"change":2,"pos":418}],"flag":"BLOCK","start":14041,"end":14101,"inode":{"change":2,"pos":49}}},"contents":[{"Add":"const LAZY_DIR_INO: u64 = 5;"},{"Add":"const LAZY_FILE_INO: u64 = 6;"},{"Add":""}]}},{"Replacement":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":25,"ins":{"up_context":[{"change":2,"pos":701}],"down_context":[{"change":2,"pos":726}],"flag":"BLOCK","start":14102,"end":14137,"inode":{"change":2,"pos":49}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":701},"to":{"change":2,"start":701,"end":726},"introduced_by":2}],"inode":{"change":2,"pos":49}},"ins_contents":[{"Add":"const NOW:SystemTime = UNIX_EPOCH;"}],"del_contents":[{"Del":"struct MemoryFileSystem;\n"}]}},{"Replacement":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":27,"ins":{"up_context":[{"change":2,"pos":727}],"down_context":[{"change":2,"pos":841}],"flag":"BLOCK","start":14138,"end":14203,"inode":{"change":2,"pos":49}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":727},"to":{"change":2,"start":727,"end":841},"introduced_by":2}],"inode":{"change":2,"pos":49}},"ins_contents":[{"Add":"struct MemoryFileSystem{"},{"Add":" stete_in_mem: RwLock,"},{"Add":"}"}],"del_contents":[{"Del":"impl MemoryFileSystem {\n fn get_attribute(&self, ino: u64) -> Option {\n let now = UNIX_EPOCH;\n"}]}},{"Replacement":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":31,"ins":{"up_context":[{"change":2,"pos":842}],"down_context":[{"change":2,"pos":3036}],"flag":"BLOCK","start":14204,"end":15295,"inode":{"change":2,"pos":49}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":842},"to":{"change":2,"start":842,"end":3036},"introduced_by":2}],"inode":{"change":2,"pos":49}},"ins_contents":[{"Add":"impl MemoryFileSystem {"},{"Add":" fn get_attribute(&self, ino: INodeNo) -> Option {"},{"Add":" match self.stete_in_mem.read() {"},{"Add":" Ok(v) => {"},{"Add":" if let Some(stateinmem) = v.get_file_obj(ino) {"},{"Add":" match stateinmem {"},{"Add":" StateInMem::Dir { dir_name: _, file_attr, childs: _ } => {"},{"Add":" Some(file_attr.clone())"},{"Add":" }"},{"Add":" StateInMem::File { file_name: _, file_attr, contents: _ } => {"},{"Add":" Some(file_attr.clone())"},{"Add":" }"},{"Add":" StateInMem::LazyDir { dir_name: _, file_attr } => {"},{"Add":" Some(file_attr.clone())"},{"Add":" }"},{"Add":" StateInMem::LazyFile { file_name: _, file_attr } => {"},{"Add":" Some(file_attr.clone())"},{"Add":" }"},{"Add":" }"},{"Add":" } else {"},{"Add":" None"},{"Add":" }"},{"Add":" }"},{"Add":" Err(e) => {"},{"Add":" println!(\"{:?}\", e);"},{"Add":" None"},{"Add":" }"}],"del_contents":[{"Del":" match ino {\n ROOT_DIR_INO => Some(FileAttr {\n ino: INodeNo::ROOT,\n size: 0,\n blocks: 0,\n atime: now,\n mtime: now,\n ctime: now,\n crtime: now,\n kind: FileType::Directory,\n perm: 0o755, // rwxr-xr-x\n nlink: 3, // \".\" \"..\" \"subdir\"\n uid: 1000,\n gid: 1000,\n rdev: 0,\n blksize: 512,\n flags: 0,\n }),\n SUB_DIR_INO => Some(FileAttr {\n ino: INodeNo(SUB_DIR_INO),\n size: 0,\n blocks: 0,\n atime: now,\n mtime: now,\n ctime: now,\n crtime: now,\n kind: FileType::Directory,\n perm: 0o755, // rwxr-xr-x\n nlink: 2, // \".\" \"..\"\n uid: 1000,\n gid: 1000,\n rdev: 0,\n blksize: 512,\n flags: 0,\n }),\n HELLO_FILE_INO => Some(FileAttr {\n ino: INodeNo(HELLO_FILE_INO),\n size: HELLO_CONTENT.len() as u64,\n blocks: 1,\n atime: now,\n mtime: now,\n ctime: now,\n crtime: now,\n kind: FileType::RegularFile,\n perm: 0o644, // rw-r--r--\n nlink: 1,\n uid: 1000,\n gid: 1000,\n rdev: 0,\n blksize: 512,\n flags: 0,\n }),\n WORLD_FILE_INO => Some(FileAttr {\n ino: INodeNo(WORLD_FILE_INO),\n size: WORLD_CONTENT.len() as u64,\n blocks: 1,\n atime: now,\n mtime: now,\n ctime: now,\n crtime: now,\n kind: FileType::RegularFile,\n perm: 0o644, // rw-r--r--\n nlink: 1,\n uid: 1000,\n gid: 1000,\n rdev: 0,\n blksize: 512,\n flags: 0,\n }),\n _ => None,\n"}]}},{"Replacement":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":66,"ins":{"up_context":[{"change":2,"pos":3262}],"down_context":[{"change":2,"pos":3726}],"flag":"BLOCK","start":15296,"end":15535,"inode":{"change":2,"pos":49}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":3262},"to":{"change":2,"start":3262,"end":3726},"introduced_by":2}],"inode":{"change":2,"pos":49}},"ins_contents":[{"Add":" match self.stete_in_mem.read() {"},{"Add":" Ok(v) => {"},{"Add":" if let Some(attr) = v.get_file_obj_with_parent(&INodeNo::ROOT, &parent, &name.to_string_lossy()) {"},{"Add":" reply.entry(&TTL, attr, Generation(0));"}],"del_contents":[{"Del":" if parent == INodeNo::ROOT {\n if name.to_str() == Some(HELLO_FILE_NAME) {\n if let Some(attr) = self.get_attribute(HELLO_FILE_INO) {\n reply.entry(&TTL, &attr, Generation(0));\n return;\n }\n } else if name.to_str() == Some(SUB_DIR_NAME) {\n if let Some(attr) = self.get_attribute(SUB_DIR_INO) {\n reply.entry(&TTL, &attr, Generation(0));\n"}]}},{"Edit":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":72,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":3772},"to":{"change":2,"start":3772,"end":3858},"introduced_by":2}],"inode":{"change":2,"pos":49}}},"contents":[{"Del":" } else {\n println!(\"name.to_str() = {:?}\", name.to_str());\n"}]}},{"Replacement":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":73,"ins":{"up_context":[{"change":2,"pos":3872}],"down_context":[{"change":2,"pos":4245}],"flag":"BLOCK","start":15536,"end":15597,"inode":{"change":2,"pos":49}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":3872},"to":{"change":2,"start":3872,"end":4245},"introduced_by":2}],"inode":{"change":2,"pos":49}},"ins_contents":[{"Add":" Err(e) => {"},{"Add":" println!(\"{:?}\", e);"}],"del_contents":[{"Del":" } else if parent == INodeNo(SUB_DIR_INO) {\n if name.to_str() == Some(WORLD_FILE_NAME) {\n if let Some(attr) = self.get_attribute(WORLD_FILE_INO) {\n reply.entry(&TTL, &attr, Generation(0));\n return;\n }\n } else {\n println!(\"name.to_str() = {:?}\", name.to_str());\n"}]}},{"Replacement":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":83,"ins":{"up_context":[{"change":2,"pos":4473}],"down_context":[{"change":2,"pos":4530}],"flag":"BLOCK","start":15598,"end":15653,"inode":{"change":2,"pos":49}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":4473},"to":{"change":2,"start":4473,"end":4530},"introduced_by":2}],"inode":{"change":2,"pos":49}},"ins_contents":[{"Add":" if let Some(attr) = self.get_attribute(ino) {"}],"del_contents":[{"Del":" if let Some(attr) = self.get_attribute(ino.0) {\n"}]}},{"Edit":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":172,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":7338}],"down_context":[{"change":2,"pos":7338}],"flag":"BLOCK","start":15654,"end":16933,"inode":{"change":2,"pos":49}}},"contents":[{"Add":""},{"Add":" let tree = StateInMem::Dir {"},{"Add":""},{"Add":" dir_name: \"root\".to_string(),"},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo::ROOT,"},{"Add":" size: 0,"},{"Add":" blocks: 0,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::Directory,"},{"Add":" perm: 0o755, // rwxr-xr-x"},{"Add":" nlink: 3, // \".\" \"..\" \"subdir\""},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" },"},{"Add":""},{"Add":" childs: vec!["},{"Add":" (INodeNo(HELLO_FILE_INO), StateInMem::LazyFile { "},{"Add":" file_name: \"hello.txt\".to_string(), "},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(HELLO_FILE_INO),"},{"Add":" size: HELLO_CONTENT.len() as u64,"},{"Add":" blocks: 1,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::RegularFile,"},{"Add":" perm: 0o644, // rw-r--r--"},{"Add":" nlink: 1,"},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" }"},{"Add":" }),"}]}},{"Edit":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":216,"atom":{"NewVertex":{"up_context":[{"change":2,"pos":7339}],"down_context":[{"change":2,"pos":7339}],"flag":"BLOCK","start":16934,"end":19657,"inode":{"change":2,"pos":49}}},"contents":[{"Add":" ("},{"Add":" INodeNo(SUB_DIR_INO),"},{"Add":" StateInMem::Dir {"},{"Add":" dir_name: \"subdir\".to_string(), "},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(SUB_DIR_INO),"},{"Add":" size: 0,"},{"Add":" blocks: 0,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::Directory,"},{"Add":" perm: 0o755, // rwxr-xr-x"},{"Add":" nlink: 2, // \".\" \"..\""},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" },"},{"Add":""},{"Add":" childs: vec!["},{"Add":" ("},{"Add":" INodeNo(LAZY_FILE_INO),"},{"Add":" StateInMem::LazyFile {"},{"Add":" file_name: \"lazy.txt\".to_string(),"},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(LAZY_FILE_INO),"},{"Add":" size: WORLD_CONTENT.len() as u64,"},{"Add":" blocks: 1,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::RegularFile,"},{"Add":" perm: 0o644, // rw-r--r--"},{"Add":" nlink: 1,"},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" }"},{"Add":" },"},{"Add":" )"},{"Add":" ].iter().fold(HashMap::new(), |mut acc, (k, v)| {"},{"Add":" acc.insert(k.clone(), v.clone()); "},{"Add":" acc"},{"Add":" })"},{"Add":" }),"},{"Add":""},{"Add":" ("},{"Add":" INodeNo(LAZY_DIR_INO),"},{"Add":" StateInMem::LazyDir { "},{"Add":" dir_name: \"lazydir\".to_string(),"},{"Add":" file_attr: FileAttr {"},{"Add":" ino: INodeNo(LAZY_DIR_INO),"},{"Add":" size: 0,"},{"Add":" blocks: 0,"},{"Add":" atime: NOW,"},{"Add":" mtime: NOW,"},{"Add":" ctime: NOW,"},{"Add":" crtime: NOW,"},{"Add":" kind: FileType::Directory,"},{"Add":" perm: 0o755, // rwxr-xr-x"},{"Add":" nlink: 2, // \".\" \"..\""},{"Add":" uid: 1000,"},{"Add":" gid: 1000,"},{"Add":" rdev: 0,"},{"Add":" blksize: 512,"},{"Add":" flags: 0,"},{"Add":" }"},{"Add":" }"},{"Add":" )"},{"Add":" ].iter().fold(HashMap::new(), |mut acc, (k, v)| {acc.insert(k.clone(), v.clone()); acc})};"},{"Add":""},{"Add":""}]}},{"Replacement":{"inode":{"change":2,"pos":49},"path":"src/main.rs","line":295,"ins":{"up_context":[{"change":2,"pos":7397}],"down_context":[{"change":2,"pos":7464}],"flag":"BLOCK","start":19658,"end":19760,"inode":{"change":2,"pos":49}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":7397},"to":{"change":2,"start":7397,"end":7464},"introduced_by":2}],"inode":{"change":2,"pos":49}},"ins_contents":[{"Add":" fuser::mount2(MemoryFileSystem{ stete_in_mem: RwLock::new(tree) }, mountpoint, &config).unwrap();"}],"del_contents":[{"Del":" fuser::mount2(MemoryFileSystem, mountpoint, &config).unwrap();\n"}]}}],"owner":"phantom","repo":"pijulfs","token":"tMU4HDjmaQPCC5OH8Fmfku0WLzN8oFv7iQxLtu4mRkQ=","login":null}

…

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