Allow configuring wait duration

config_spec.toml

@@ -69,6 +69,12 @@ doc = "Prometheus monitoring 'addr:port' to listen on (default: 127.0.0.1:4224 f
 name = "jsonrpc_import"
 doc = "Use JSONRPC instead of directly importing blk*.dat files. Useful for remote full node or low memory system"
 
+[[param]]
+name = "wait_duration_secs"
+type = "u64"
+doc = "Duration to wait between bitcoind polling"
+default = "5"
+
 [[param]]
 name = "index_batch_size"
 type = "usize"

src/bin/electrs.rs

@@ -7,7 +7,6 @@ extern crate log;
 use error_chain::ChainedError;
 use std::process;
 use std::sync::Arc;
-use std::time::Duration;
 
 use electrs::{
     app::App,
@@ -72,7 +71,7 @@ fn run_server(config: &Config) -> Result<()> {
                 RPC::start(config.electrum_rpc_addr, query.clone(), &metrics, relayfee)
             })
             .notify(); // update subscribed clients
-        if let Err(err) = signal.wait(Duration::from_secs(5)) {
+        if let Err(err) = signal.wait(config.wait_duration) {
             info!("stopping server: {}", err);
             break;
         }

src/config.rs

@@ -10,6 +10,7 @@ use std::net::ToSocketAddrs;
 use std::path::{Path, PathBuf};
 use std::str::FromStr;
 use std::sync::Arc;
+use std::time::Duration;
 use stderrlog;
 
 use crate::daemon::CookieGetter;
@@ -131,6 +132,7 @@ pub struct Config {
     pub electrum_rpc_addr: SocketAddr,
     pub monitoring_addr: SocketAddr,
     pub jsonrpc_import: bool,
+    pub wait_duration: Duration,
     pub index_batch_size: usize,
     pub bulk_index_threads: usize,
     pub tx_cache_size: usize,
@@ -262,6 +264,7 @@ impl Config {
             electrum_rpc_addr,
             monitoring_addr,
             jsonrpc_import: config.jsonrpc_import,
+            wait_duration: Duration::from_secs(config.wait_duration_secs),
             index_batch_size: config.index_batch_size,
             bulk_index_threads: config.bulk_index_threads,
             tx_cache_size: (config.tx_cache_size_mb * MB) as usize,