[R4R]add mirror sync upgrade

ethcore/res/ethereum/bsc.json

@@ -31,6 +31,7 @@
 		"eip1706Transition": "0x0",
 		"eip1884Transition": "0x0",
 		"eip2028Transition": "0x0",
+		"mirrorSyncTransition": "0x4f1a00",
 		"gasLimitBoundDivisor": "0x100",
 		"maxCodeSize": "0x6000",
 		"maxCodeSizeTransition": "0x0",

ethcore/src/engines/parlia/mod.rs

@@ -16,12 +16,14 @@
 
 //! Implementation of the Parlia POSA Engine.
 #![allow(missing_docs)]
+mod contract_upgrade;
 mod params;
 mod snapshot;
 pub mod util;
 
 use block::ExecutedBlock;
 use client::{BlockId, EngineClient};
+use engines::parlia::contract_upgrade::upgrade_build_in_system_contract;
 use engines::{
     parlia::{
         params::ParliaParams,
@@ -179,6 +181,10 @@ impl Parlia {
                 .map(|out| (out, Vec::new()))
         })
     }
+
+    fn upgrade_build_in_system_contract(&self, _block: &mut ExecutedBlock) {
+        upgrade_build_in_system_contract(self.machine.params(), _block);
+    }
 }
 
 /// whether it is a parlia engine
@@ -195,6 +201,16 @@ impl Engine<EthereumMachine> for Parlia {
         &self.machine
     }
 
+    fn on_new_block(
+        &self,
+        _block: &mut ExecutedBlock,
+        _epoch_begin: bool,
+        _ancestry: &mut dyn Iterator<Item = ExtendedHeader>,
+    ) -> Result<(), Error> {
+        self.upgrade_build_in_system_contract(_block);
+        Ok(())
+    }
+
     fn on_close_block(&self, _block: &mut ExecutedBlock) -> Result<(), Error> {
         let txs = &_block.transactions;
         let header = &_block.header;

ethcore/src/spec/spec.rs

@@ -134,6 +134,8 @@ pub struct CommonParams {
     pub eip2028_transition: BlockNumber,
     /// Number of first block where EIP-2315 rules begin.
     pub eip2315_transition: BlockNumber,
+    // Number of mirror sync fork begin.
+    pub mirror_sync_transition: BlockNumber,
     /// Number of first block where dust cleanup rules (EIP-168 and EIP169) begin.
     pub dust_protection_transition: BlockNumber,
     /// Nonce cap increase per block. Nonce cap is only checked if dust protection is enabled.
@@ -345,6 +347,9 @@ impl From<ethjson::spec::Params> for CommonParams {
             eip2315_transition: p
                 .eip2315_transition
                 .map_or_else(BlockNumber::max_value, Into::into),
+            mirror_sync_transition: p
+                .mirror_sync_transition
+                .map_or_else(BlockNumber::max_value, Into::into),
             dust_protection_transition: p
                 .dust_protection_transition
                 .map_or_else(BlockNumber::max_value, Into::into),
@@ -632,6 +637,7 @@ impl Spec {
             params.eip1884_transition,
             params.eip2028_transition,
             params.eip2315_transition,
+            params.mirror_sync_transition,
             params.dust_protection_transition,
             params.wasm_activation_transition,
             params.wasm_disable_transition,

json/src/spec/params.rs

@@ -106,6 +106,8 @@ pub struct Params {
     /// See `CommonParams` docs.
     pub eip2315_transition: Option<Uint>,
     /// See `CommonParams` docs.
+    pub mirror_sync_transition: Option<Uint>,
+    /// See `CommonParams` docs.
     pub dust_protection_transition: Option<Uint>,
     /// See `CommonParams` docs.
     pub nonce_cap_increment: Option<Uint>,