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use std::{
time::Duration,
sync::{Arc, RwLock},
};
use async_std::{
task,
future
};
use cyfs_base::*;
use crate::{
types::*,
interface::{NetListener, udp::{self, OnUdpPackageBox}},
protocol::{*, v0::*},
stack::{Stack, WeakStack}
};
use super::{
cache::*,
ping::{PingConfig, PingClients, SnStatus},
call::{CallConfig, CallManager}
};
pub trait PingClientCalledEvent<Context=()>: Send + Sync {
fn on_called(&self, called: &SnCalled, context: Context) -> Result<(), BuckyError>;
}
#[derive(Clone)]
pub struct Config {
pub atomic_interval: Duration,
pub ping: PingConfig,
pub call: CallConfig,
}
struct ManagerImpl {
stack: WeakStack,
gen_seq: Arc<TempSeqGenerator>,
cache: SnCache,
ping: RwLock<PingClients>,
call: CallManager,
}
#[derive(Clone)]
pub struct ClientManager(Arc<ManagerImpl>);
impl ClientManager {
pub fn create(stack: WeakStack, net_listener: NetListener, local_device: Device) -> Self {
let strong_stack = Stack::from(&stack);
let config = &strong_stack.config().sn_client;
let atomic_interval = config.atomic_interval;
let gen_seq = Arc::new(TempSeqGenerator::new());
let manager = Self(Arc::new(ManagerImpl {
cache: SnCache::new(),
ping: RwLock::new(PingClients::new(stack.clone(), gen_seq.clone(), net_listener, vec![], local_device)),
call: CallManager::create(stack.clone()),
gen_seq,
stack,
}));
{
let manager = manager.clone();
task::spawn(async move {
loop {
let now = bucky_time_now();
manager.ping().on_time_escape(now);
manager.call().on_time_escape(now);
let _ = future::timeout(atomic_interval, future::pending::<()>()).await;
}
});
}
manager
}
pub fn cache(&self) -> &SnCache {
&self.0.cache
}
pub fn ping(&self) -> PingClients {
self.0.ping.read().unwrap().clone()
}
pub fn reset(&self) -> Option<PingClients> {
let next = {
let mut ping = self.0.ping.write().unwrap();
if let Some(status) = ping.status() {
if SnStatus::Offline == status {
let to_close = ping.clone();
let to_start = PingClients::new(
self.0.stack.clone(),
self.0.gen_seq.clone(),
to_close.net_listener().reset(None),
to_close.sn_list().clone(),
to_close.default_local()
);
*ping = to_start.clone();
Some((to_start, to_close))
} else {
None
}
} else {
None
}
};
if let Some((to_start, to_close)) = next {
to_close.stop();
Some(to_start)
} else {
None
}
}
pub fn reset_sn_list(&self, sn_list: Vec<Device>) -> PingClients {
let (to_start, to_close) = {
let mut ping = self.0.ping.write().unwrap();
let to_close = ping.clone();
let to_start = PingClients::new(
self.0.stack.clone(),
self.0.gen_seq.clone(),
to_close.net_listener().reset(None),
sn_list,
to_close.default_local()
);
*ping = to_start.clone();
(to_start, to_close)
};
to_close.stop();
to_start
}
pub fn reset_endpoints(&self, net_listener: NetListener, local_device: Device) -> PingClients {
let (to_start, to_close) = {
let mut ping = self.0.ping.write().unwrap();
let to_close = ping.clone();
let to_start = to_close.reset(net_listener, local_device);
*ping = to_start.clone();
(to_start, to_close)
};
to_close.stop();
to_start
}
pub fn call(&self) -> &CallManager {
&self.0.call
}
}
impl OnUdpPackageBox for ClientManager {
fn on_udp_package_box(&self, package_box: udp::UdpPackageBox) -> Result<(), BuckyError> {
let from = package_box.remote().clone();
let from_interface = package_box.local();
for pkg in package_box.as_ref().packages() {
match pkg.cmd_code() {
PackageCmdCode::SnPingResp => {
match pkg.as_any().downcast_ref::<SnPingResp>() {
None => return Err(BuckyError::new(BuckyErrorCode::InvalidData, "should be SnPingResp")),
Some(ping_resp) => {
let _ = self.ping().on_udp_ping_resp(ping_resp, &from, from_interface.clone());
}
}
},
PackageCmdCode::SnCalled => {
match pkg.as_any().downcast_ref::<SnCalled>() {
None => return Err(BuckyError::new(BuckyErrorCode::InvalidData, "should be SnCalled")),
Some(called) => {
let _ = self.ping().on_called(called, package_box.as_ref(), &from, from_interface.clone());
}
}
},
PackageCmdCode::SnCallResp => {
match pkg.as_any().downcast_ref::<SnCallResp>() {
None => return Err(BuckyError::new(BuckyErrorCode::InvalidData, "should be SnCallResp")),
Some(call_resp) => {
let _ = self.call().on_udp_call_resp(call_resp, from_interface, &from);
}
}
},
_ => {
return Err(BuckyError::new(BuckyErrorCode::InvalidData, format!("unkown package({:?})", pkg.cmd_code()).as_str()))
}
}
}
Ok(())
}
}