wip: implemented crypto reloader, as separated object from proxy itself

rpxy-lib/src/crypto/mod.rs

@@ -0,0 +1,36 @@
+mod certs;
+mod service;
+
+use crate::{
+  backend::BackendAppManager,
+  constants::{CERTS_WATCH_DELAY_SECS, LOAD_CERTS_ONLY_WHEN_UPDATED},
+  error::RpxyResult,
+};
+use hot_reload::{ReloaderReceiver, ReloaderService};
+use service::CryptoReloader;
+use std::sync::Arc;
+
+pub use certs::{CertsAndKeys, CryptoSource};
+pub use service::ServerCryptoBase;
+
+/// Result type inner of certificate reloader service
+type ReloaderServiceResultInner<T> = (
+  ReloaderService<CryptoReloader<T>, ServerCryptoBase>,
+  ReloaderReceiver<ServerCryptoBase>,
+);
+/// Build certificate reloader service
+pub(crate) async fn build_cert_reloader<T>(
+  app_manager: &Arc<BackendAppManager<T>>,
+) -> RpxyResult<ReloaderServiceResultInner<T>>
+where
+  T: CryptoSource + Clone + Send + Sync + 'static,
+{
+  let (cert_reloader_service, cert_reloader_rx) = ReloaderService::<
+    service::CryptoReloader<T>,
+    service::ServerCryptoBase,
+  >::new(
+    app_manager, CERTS_WATCH_DELAY_SECS, !LOAD_CERTS_ONLY_WHEN_UPDATED
+  )
+  .await?;
+  Ok((cert_reloader_service, cert_reloader_rx))
+}