stratum: fix wallet name after selection, do not panic after stop

src/gui/views/network/mining.rs

@@ -25,27 +25,17 @@ use crate::gui::views::network::NetworkContent;
 use crate::gui::views::network::setup::StratumSetup;
 use crate::gui::views::network::types::{NodeTab, NodeTabType};
 use crate::node::{Node, NodeConfig};
-use crate::wallet::WalletConfig;
 
 /// Mining tab content.
 pub struct NetworkMining {
     /// Stratum server setup content.
     stratum_server_setup: StratumSetup,
-
-    /// Wallet name for rewards.
-    wallet_name: String,
 }
 
 impl Default for NetworkMining {
     fn default() -> Self {
-        let wallet_name = if let Some(id) = NodeConfig::get_stratum_wallet_id() {
-            WalletConfig::name_by_id(id).unwrap_or("-".to_string())
-        } else {
-            "-".to_string()
-        };
         Self {
             stratum_server_setup: StratumSetup::default(),
-            wallet_name,
         }
     }
 }
@@ -91,7 +81,10 @@ impl NodeTab for NetworkMining {
             });
             columns[1].vertical_centered(|ui| {
                 View::label_box(ui,
-                                self.wallet_name.clone(),
+                                self.stratum_server_setup
+                                    .wallet_name
+                                    .clone()
+                                    .unwrap_or("-".to_string()),
                                 t!("network_mining.rewards_wallet"),
                                 [false, true, false, true]);
             });

src/gui/views/network/setup/stratum.rs

@@ -44,7 +44,7 @@ pub struct StratumSetup {
     is_port_available: bool,
 
     /// Wallet name to receive rewards.
-    wallet_name: Option<String>,
+    pub wallet_name: Option<String>,
 
     /// Attempt time value in seconds to mine on a particular header.
     attempt_time_edit: String,

src/node/mine_block.rs

@@ -15,7 +15,6 @@
 //! Build a block to mine: gathers transactions from the pool, assembles
 //! them into a block and returns it.
 
-use std::panic::panic_any;
 use chrono::prelude::{DateTime, Utc};
 use rand::{thread_rng, Rng};
 use serde_json::{json, Value};
@@ -77,7 +76,7 @@ pub fn get_block(
     key_id: Option<Identifier>,
     wallet_listener_url: Option<String>,
     stop_state: &Arc<StratumStopState>
-) -> (core::Block, BlockFees) {
+) -> Option<(core::Block, BlockFees)> {
     let wallet_retry_interval = 5;
     // get the latest chain state and build a block on top of it
     let mut result = build_block(chain, tx_pool, key_id.clone(), wallet_listener_url.clone());
@@ -116,12 +115,11 @@ pub fn get_block(
 
         // Stop attempts to build a block on stop.
         if stop_state.is_stopped() {
-            panic_any("Stopped");
+            return None;
         }
-
         result = build_block(chain, tx_pool, new_key_id, wallet_listener_url.clone());
     }
-    return result.unwrap();
+    Some(result.unwrap())
 }
 
 /// Builds a new block with the chain head as previous and eligible

src/node/stratum.rs

@@ -604,14 +604,13 @@ impl Handler {
                     let clear_blocks = current_hash != latest_hash;
 
                     // Build the new block (version)
-                    let (new_block, block_fees) = get_block(
+                    if let Some((new_block, block_fees)) = get_block(
                         &self.chain,
                         tx_pool,
                         state.current_key_id.clone(),
                         wallet_listener_url,
                         &stop_state
-                    );
+                    ) {
-
                         // scaled difficulty
                         state.current_difficulty =
                             (new_block.header.total_difficulty() - head.total_difficulty).to_num();
@@ -636,8 +635,12 @@ impl Handler {
                         self.workers.update_network_difficulty(difficulty.to_num());
                         self.workers.update_network_hashrate();
 
-                    // Add this new block candidate onto our list of block versions for this height
+                        // Add this new block candidate onto our list of block versions for height
                         state.current_block_versions.push(new_block);
+                    } else {
+                        thread::sleep(Duration::from_millis(1500));
+                        break;
+                    }
                 }
                 // Send this job to all connected workers
                 self.broadcast_job();