TX queue gas limit config and allow local transactions over the gas limit (#2553)

* Gas limit config; Allow local transactions over the limit

* Fix typo

[ci:skip]

parity/cli/config.full.toml

@@ -68,6 +68,7 @@ price_update_period = "hourly"
 gas_floor_target = "4700000"
 gas_cap = "6283184"
 tx_queue_size = 2048
+tx_queue_gas = "auto"
 tx_gas_limit = "6283184"
 extra_data = "Parity"
 remove_solved = false

parity/cli/config.toml

@@ -41,6 +41,7 @@ reseal_on_txs = "all"
 reseal_min_period = 4000
 price_update_period = "hourly"
 tx_queue_size = 2048
+tx_queue_gas = "auto"
 
 [footprint]
 tracing = "on"

parity/cli/mod.rs

@@ -195,6 +195,8 @@ usage! {
 			or |c: &Config| otry!(c.mining).extra_data.clone().map(Some),
 		flag_tx_queue_size: usize = 2048usize,
 			or |c: &Config| otry!(c.mining).tx_queue_size.clone(),
+		flag_tx_queue_gas: String = "auto",
+			or |c: &Config| otry!(c.mining).tx_queue_gas.clone(),
 		flag_remove_solved: bool = false,
 			or |c: &Config| otry!(c.mining).remove_solved.clone(),
 		flag_notify_work: Option<String> = None,
@@ -348,6 +350,7 @@ struct Mining {
 	gas_cap: Option<String>,
 	extra_data: Option<String>,
 	tx_queue_size: Option<usize>,
+	tx_queue_gas: Option<String>,
 	remove_solved: Option<bool>,
 	notify_work: Option<Vec<String>>,
 }
@@ -523,6 +526,7 @@ mod tests {
 			flag_gas_cap: "6283184".into(),
 			flag_extra_data: Some("Parity".into()),
 			flag_tx_queue_size: 2048usize,
+			flag_tx_queue_gas: "auto".into(),
 			flag_remove_solved: false,
 			flag_notify_work: Some("http://localhost:3001".into()),
 
@@ -673,6 +677,7 @@ mod tests {
 				gas_floor_target: None,
 				gas_cap: None,
 				tx_queue_size: Some(2048),
+				tx_queue_gas: Some("auto".into()),
 				tx_gas_limit: None,
 				extra_data: None,
 				remove_solved: None,

parity/cli/usage.txt

@@ -184,6 +184,10 @@ Sealing/Mining Options:
                            more than 32 characters. (default: {flag_extra_data:?})
   --tx-queue-size LIMIT    Maximum amount of transactions in the queue (waiting
                            to be included in next block) (default: {flag_tx_queue_size}).
+  --tx-queue-gas LIMIT     Maximum amount of total gas for external transactions in
+                           the queue. LIMIT can be either an amount of gas or
+                           'auto' or 'off'. 'auto' sets the limit to be 2x
+                           the current block gas limit. (default: {flag_tx_queue_gas}).
   --remove-solved          Move solved blocks from the work package queue
                            instead of cloning them. This gives a slightly
                            faster import speed, but means that extra solutions

parity/configuration.rs

@@ -30,7 +30,7 @@ use rpc::{IpcConfiguration, HttpConfiguration};
 use ethcore_rpc::NetworkSettings;
 use cache::CacheConfig;
 use helpers::{to_duration, to_mode, to_block_id, to_u256, to_pending_set, to_price, replace_home,
-geth_ipc_path, parity_ipc_path, to_bootnodes, to_addresses, to_address};
+geth_ipc_path, parity_ipc_path, to_bootnodes, to_addresses, to_address, to_gas_limit};
 use params::{ResealPolicy, AccountsConfig, GasPricerConfig, MinerExtras, SpecType};
 use ethcore_logger::Config as LogConfig;
 use dir::Directories;
@@ -348,6 +348,7 @@ impl Configuration {
 				None => U256::max_value(),
 			},
 			tx_queue_size: self.args.flag_tx_queue_size,
+			tx_queue_gas_limit: try!(to_gas_limit(&self.args.flag_tx_queue_gas)),
 			pending_set: try!(to_pending_set(&self.args.flag_relay_set)),
 			reseal_min_period: Duration::from_millis(self.args.flag_reseal_min_period),
 			work_queue_size: self.args.flag_work_queue_size,

parity/helpers.rs

@@ -22,7 +22,7 @@ use std::fs::File;
 use util::{clean_0x, U256, Uint, Address, path, CompactionProfile};
 use util::journaldb::Algorithm;
 use ethcore::client::{Mode, BlockID, VMType, DatabaseCompactionProfile, ClientConfig};
-use ethcore::miner::PendingSet;
+use ethcore::miner::{PendingSet, GasLimit};
 use cache::CacheConfig;
 use dir::DatabaseDirectories;
 use upgrade::upgrade;
@@ -93,6 +93,14 @@ pub fn to_pending_set(s: &str) -> Result<PendingSet, String> {
 	}
 }
 
+pub fn to_gas_limit(s: &str) -> Result<GasLimit, String> {
+	match s {
+		"auto" => Ok(GasLimit::Auto),
+		"off" => Ok(GasLimit::None),
+		other => Ok(GasLimit::Fixed(try!(to_u256(other)))),
+	}
+}
+
 pub fn to_address(s: Option<String>) -> Result<Address, String> {
 	match s {
 		Some(ref a) => clean_0x(a).parse().map_err(|_| format!("Invalid address: {:?}", a)),