Optimized p2p connections.

Added a limit for 10 active connections to save bandwidth and CPU.

src/commons/constants.rs

@@ -1,3 +1,5 @@
+use std::time::Duration;
+
 pub const DB_VERSION: u32 = 0;
 pub const CHAIN_VERSION: u32 = 0;
 
@@ -38,3 +40,8 @@ pub const ALFIS_DEBUG: &str = "ALFIS_DEBUG";
 pub const LISTEN_PORT: u16 = 4244;
 pub const UI_REFRESH_DELAY_MS: u128 = 250;
 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_NODES: usize = 10;