core, dex, internal: block proposer syncing (first iteration) (#96)

* dex, internal: block proposer syncing (first iteration)

* core: find block from db if not in memory

This fix handles stopping proposing and then restarting

* core: no need to reorg when reset

Dexon will not fork. This commit also fix when a block confirm but
its parent is not in db yet, during restarting proposing.

* dex: always accept NewBlockMsg, NewBlockHashesMsg

We need to accept NewBlockMsg, NewBlockHashesMsg to sync current block with
other peers in block proposer mode when syncing lattice data. It's a waste
when the node is synced and start proposing.

Todo: control msg processing on/off more granular, accept NewBlockMsg,
NewBlockHashesMsg when syncing, but stop when synced.

1 files changed, 16 insertions, 0 deletions

diff --git a/internal/web3ext/web3ext.go b/internal/web3ext/web3ext.go
index 06bfcef69..df16ef4e5 100644
--- a/internal/web3ext/web3ext.go
+++ b/internal/web3ext/web3ext.go
@@ -198,6 +198,14 @@ web3._extend({
 			name: 'stopWS',
 			call: 'admin_stopWS'
 		}),
+		new web3._extend.Method({
+			name: 'startProposing',
+			call: 'admin_startProposing'
+		}),
+		new web3._extend.Method({
+			name: 'stopProposing',
+			call: 'admin_stopProposing'
+		}),
 	],
 	properties: [
 		new web3._extend.Property({
@@ -212,6 +220,14 @@ web3._extend({
 			name: 'datadir',
 			getter: 'admin_datadir'
 		}),
+		new web3._extend.Property({
+			name: 'isLatticeSyncing',
+			getter: 'admin_isLatticeSyncing'
+		}),
+		new web3._extend.Property({
+			name: 'isProposing',
+			getter: 'admin_isProposing'
+		}),
 	]
 });
 `