renaming; create -> create_new

Author: stneng

examples/protocol_greetings_with_instant_server.rs

@@ -1,6 +1,6 @@
 #![allow(unused_variables)]
 use colink::{
-    extensions::instant_server::{InstantServer, LocalRegistry},
+    extensions::instant_server::{InstantRegistry, InstantServer},
     CoLink, Participant, ProtocolEntry,
 };
 
@@ -36,7 +36,8 @@ impl ProtocolEntry for Receiver {
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync + 'static>> {
-    let lr = LocalRegistry::new().await;
+    let ir = InstantRegistry::new().await;
+    // The instant server will automatically use the instant registry when there is one.
     let is0 = InstantServer::new();
     let is1 = InstantServer::new();
     let cl0 = is0.get_colink().switch_to_generated_user().await?;

src/extensions/instant_server.rs

@@ -2,7 +2,6 @@ use crate::{utils::get_colink_home, CoLink};
 use rand::Rng;
 use std::{
     fs::File,
-    io::Write,
     path::Path,
     process::{Child, Command, Stdio},
 };
@@ -106,25 +105,28 @@ impl InstantServer {
     }
 }
 
-pub struct LocalRegistry {
+pub struct InstantRegistry {
     _instant_server: InstantServer,
 }
 
-impl Drop for LocalRegistry {
+impl Drop for InstantRegistry {
     fn drop(&mut self) {
         let colink_home = get_colink_home().unwrap();
-        let registry_file = Path::new(&colink_home).join("registry.conf");
+        let registry_file = Path::new(&colink_home).join("reg_config");
         std::fs::remove_file(&registry_file).unwrap();
     }
 }
 
-impl LocalRegistry {
+impl InstantRegistry {
     pub async fn new() -> Self {
         let is = InstantServer::new();
         let colink_home = get_colink_home().unwrap();
-        let registry_file = Path::new(&colink_home).join("registry.conf");
-        let mut file = File::create(&registry_file).unwrap();
-        file.write_all(b"new_registry").unwrap();
+        let registry_file = Path::new(&colink_home).join("reg_config");
+        let _file = File::options()
+            .write(true)
+            .create_new(true)
+            .open(&registry_file)
+            .unwrap();
         is.get_colink().switch_to_generated_user().await.unwrap();
         Self {
             _instant_server: is,