Struct StateFile 

pub struct StateFile { /* private fields */ }

Atomic JSON persistence for daemon state.

Implementations

impl StateFile

pub fn new(data_dir: &Path) -> Self

pub fn save(&self, state: &DaemonState) -> Result<()>

Persist state using a same-directory temporary file and rename.

Errors

Returns an error when the directory or state file cannot be written.

pub fn load(&self) -> Result<Option<DaemonState>>

Load the state, returning None when no state file exists.

Errors

Returns an error when the state file cannot be read or contains invalid JSON.

pub fn save_status(&self, report: &DaemonStatusReport) -> Result<()>

Persist the current daemon activity report atomically.

Errors

Returns an error when the report cannot be serialized or written.

pub fn load_status(&self) -> Result<Option<DaemonStatusReport>>

Load the last daemon activity report.

Errors

Returns an error when the report cannot be read or contains invalid JSON.

pub fn exists(&self) -> bool

pub fn remove(&self) -> Result<()>

Remove the state file if it exists.

Errors

Returns an error when the state file cannot be removed.

pub fn remove_status(&self) -> Result<()>

Remove the status report if it exists.

Errors

Returns an error when the status report cannot be removed.

pub fn is_running(&self) -> Result<bool>

Return the initial PID liveness hint stored in the state file.

A positive result does not prove that the process is the syncweb daemon; callers should verify it through IPC.

Errors

Returns an error when the state file cannot be read or decoded.

pub fn path(&self) -> &Path

pub fn status_path(&self) -> PathBuf

Trait Implementations

impl Clone for StateFile

fn clone(&self) -> StateFile

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StateFile

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.