Pass the user manager by reference

Serving a request now takes 0 arc clones!

src/lib.rs

@@ -313,7 +313,7 @@ impl ServerInner {
     }
 
     async fn serve_client(
-        &self,
+        &'static self,
         #[cfg(feature = "gemini_srv")]
         stream: TcpStream,
         #[cfg(all(feature = "scgi_srv", not(feature = "gemini_srv")))]
@@ -498,7 +498,7 @@ impl ServerInner {
 
     #[cfg(feature = "gemini_srv")]
     async fn receive_request(
-        &self,
+        &'static self,
         stream: &mut (impl AsyncBufRead + Unpin + Send),
     ) -> Result<Request> {
         const HEADER_LIMIT: usize = REQUEST_URI_MAX_LEN + "\r\n".len();
@@ -526,13 +526,13 @@ impl ServerInner {
         Request::new(
             uri,
             #[cfg(feature="user_management")]
-            self.manager.clone(),
+            &self.manager,
         ).context("Failed to create request from URI")
     }
 
     #[cfg(feature = "scgi_srv")]
     async fn receive_request(
-        &self,
+        &'static self,
         stream: &mut (impl AsyncBufRead + Unpin),
     ) -> Result<Request> {
         let mut buff = Vec::with_capacity(4);
@@ -600,7 +600,7 @@ impl ServerInner {
             Request::new(
                 headers,
                 #[cfg(feature = "user_management")]
-                self.manager.clone(),
+                &self.manager,
             )?
         )
     }

src/types/request.rs

@@ -39,7 +39,7 @@ pub struct Request {
     certificate: Option<[u8; 32]>,
     trailing_segments: Option<Vec<String>>,
     #[cfg(feature="user_management")]
-    manager: UserManager,
+    manager: &'static UserManager,
     #[cfg(feature = "scgi_srv")]
     headers: HashMap<String, String>,
     #[cfg(feature = "scgi_srv")]
@@ -80,7 +80,7 @@ impl Request {
         #[cfg(feature = "scgi_srv")]
         headers: HashMap<String, String>,
         #[cfg(feature="user_management")]
-        manager: UserManager,
+        manager: &'static UserManager,
     ) -> Result<Self> {
         #[cfg(feature = "scgi_srv")]
         #[allow(clippy::or_fun_call)] // Lay off it's a macro
@@ -267,8 +267,8 @@ impl Request {
     /// Expose the server's UserManager
     ///
     /// Can be used to query users, or directly access the database
-    pub fn user_manager(&self) -> &UserManager {
-        &self.manager
+    pub fn user_manager(&self) -> &'static UserManager {
+        self.manager
     }
 
     /// Attempt to rewrite an absolute URL against the base path of the SCGI script