remove serde_json as it's useless

Cargo.toml

@@ -19,4 +19,3 @@ ron = "0.8.0"
 serde = { version = "1.0.163", features = ["derive"] }
 toml = "0.7.4"
 nalgebra = "0.32.2"
-serde_json = "1.0.125"

examples/simple_client.rs

@@ -10,7 +10,7 @@ use redis::{
 use std::thread::sleep;
 use std::time::{Duration, Instant};
 
-const SCALE: f32 = 500.0;
+const SCALE: f32 = 20.0;
 
 fn do_something() -> redis::RedisResult<()> {
     let client = Client::open("redis://127.0.0.1/")?;

src/main.rs

@@ -61,7 +61,7 @@ fn run_all() -> LJResult<()> {
             let s = std::str::from_utf8(&buff2[0..n]).unwrap();
             buff.push_str(&s);
 
-            if buff2[n - 1] == 0 {
+            if n == 0 || buff2[n - 1] == 0 {
                 let config = toml::from_str(&buff[0..buff.len() - 1])?;
                 break Ok(config);
             }