Optimized p2p connections a bit.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "alfis"
-version = "0.4.26"
+version = "0.4.27"
 authors = ["Revertron <alfis@revertron.com>"]
 edition = "2018"
 build = "build.rs"

src/commons/constants.rs

@@ -43,5 +43,5 @@ pub const LOG_REFRESH_DELAY_SEC: u64 = 60;
 
 pub const POLL_TIMEOUT: Option<Duration> = Some(Duration::from_millis(250));
 pub const MAX_PACKET_SIZE: usize = 1 * 1024 * 1024; // 1 Mb
-pub const MAX_READ_BLOCK_TIME: u128 = 500;
+pub const MAX_READ_BLOCK_TIME: u128 = 200;
 pub const MAX_NODES: usize = 15;

src/p2p/network.rs

@@ -353,8 +353,11 @@ fn read_message(stream: &mut TcpStream) -> Result<Vec<u8>, ()> {
             }
             // Would block "errors" are the OS's way of saying that the connection is not actually ready to perform this I/O operation.
             Err(ref err) if would_block(err) => {
-                // We give every connection no more than 500ms to read a message
+                // We give every connection no more than 200ms to read a message
                 if instant.elapsed().as_millis() < MAX_READ_BLOCK_TIME {
+                    // We need to sleep a bit, otherwise it can eat CPU
+                    let delay = Duration::from_millis(10);
+                    thread::sleep(delay);
                     continue;
                 } else {
                     break;