Struct ServerStatMan 

pub struct ServerStatMan { /* private fields */ }

Implementations

impl ServerStatMan

pub fn new() -> Self

pub fn get_or_create(&self, host: &str) -> Arc<ServerStat>

pub fn find_stat(&self, host: &str) -> Option<Arc<ServerStat>>

pub fn update(&self, host: &str, dl_speed: u64, is_multi: bool)

pub fn get_all_stats(&self) -> Vec<Arc<ServerStat>>

pub fn remove(&self, host: &str)

pub fn count(&self) -> usize

pub fn hosts(&self) -> Vec<String>

pub fn mark_failure(&self, host: &str, error_code: u16)

Mark a host as failed, updating error tracking fields.

Clones the existing ServerStat, applies failure info via set_failure_info, and replaces the entry in the map so all future Arc holders see the update.

pub fn save_to_file(&self, path: &Path) -> Result<usize, String>

Save all server statistics to a JSON file (synchronous version).

Serializes all server statistics to a JSON file at the specified path. The file format includes version info, timestamp, and all server stats.

Arguments

• path - File path to save to (e.g., “server-stat.json”)

Returns

• Ok(usize) - Number of servers saved
• Err(String) - Error message if save fails

Example

use aria2_core::selector::server_stat_man::ServerStatMan;
use std::path::Path;

let man = ServerStatMan::new();
man.update("mirror.example.com", 5000, false);

let saved = man.save_to_file(Path::new("server-stat.json")).unwrap();
println!("Saved {} servers", saved);

pub fn load_from_file(&self, path: &Path) -> Result<usize, String>

Load server statistics from a JSON file (synchronous version).

Reads a JSON file and restores all server statistics into memory. Existing statistics are preserved; loaded stats are merged in.

Arguments

• path - File path to load from

Returns

• Ok(usize) - Number of servers loaded
• Err(String) - Error message if load fails

Behavior

• Returns Ok(0) if the file doesn’t exist (not an error)
• Returns error if file exists but is invalid JSON
• Merges with existing stats (doesn’t clear current stats)

Example

use aria2_core::selector::server_stat_man::ServerStatMan;
use std::path::Path;

let man = ServerStatMan::new();
let loaded = man.load_from_file(Path::new("server-stat.json")).unwrap();
println!("Loaded {} servers", loaded);

pub async fn save_to_file_async(&self, path: &Path) -> Result<usize, String>

Save all server statistics to a JSON file (async version).

Async variant of save_to_file() for use in async contexts. This is the preferred method when called from async code.

Arguments

• path - File path to save to

Returns

• Ok(usize) - Number of servers saved
• Err(String) - Error message if save fails

pub async fn load_from_file_async(&self, path: &Path) -> Result<usize, String>

Load server statistics from a JSON file (async version).

Async variant of load_from_file() for use in async contexts. This is the preferred method when called from async code.

Arguments

• path - File path to load from

Returns

• Ok(usize) - Number of servers loaded
• Err(String) - Error message if load fails

Trait Implementations

impl Default for ServerStatMan

fn default() -> Self

Returns the “default value” for a type.