db traces

db/src/storage.rs

@@ -224,7 +224,7 @@ impl Storage {
 	///   all transaction meta is removed
 	///   DOES NOT update best block
 	fn decanonize_block(&self, context: &mut UpdateContext, hash: &H256) -> Result<(), Error> {
-		trace!(target: "reorg", "Decanonizing block {}", hash.to_reversed_str());
+		trace!(target: "db", "Decanonizing block {}", hash.to_reversed_str());
 
 		// ensure that block is of the main chain
 		try!(self.block_number(hash).ok_or(Error::not_main(hash)));
@@ -299,6 +299,8 @@ impl Storage {
 	}
 
 	fn canonize_block(&self, context: &mut UpdateContext, at_height: u32, hash: &H256) -> Result<(), Error> {
+		trace!(target: "db", "Canonizing block {}", hash.to_reversed_str());
+
 		let block = try!(self.block_by_hash(hash).ok_or(Error::unknown_hash(hash)));
 		try!(self.update_transactions_meta(context, at_height, &mut block.transactions()));
 
@@ -455,6 +457,7 @@ impl BlockStapler for Storage {
 		let mut best_block = self.best_block.write();
 
 		let mut context = UpdateContext::new(&self.database);
+		context.target(block.hash());
 
 		let block_hash = block.hash();
 
@@ -577,6 +580,7 @@ impl BlockStapler for Storage {
 		// write accumulated transactions meta
 		try!(context.apply(&self.database));
 
+		trace!(target: "db", "Best block now ({}, {})", &new_best_hash, &new_best_number);
 		// updating locked best block
 		*best_block = Some(BestBlock { hash: new_best_hash, number: new_best_number });
 

db/src/update_context.rs

@@ -9,6 +9,7 @@ pub struct UpdateContext {
 	pub meta: HashMap<H256, TransactionMeta>,
 	pub db_transaction: DBTransaction,
 	meta_snapshot: Option<HashMap<H256, TransactionMeta>>,
+	target: Option<H256>,
 }
 
 impl UpdateContext {
@@ -17,9 +18,15 @@ impl UpdateContext {
 			meta: HashMap::new(),
 			db_transaction: db.transaction(),
 			meta_snapshot: None,
+			target: None,
 		}
 	}
 
+	pub fn target(&mut self, hash: &H256) {
+		self.target = Some(hash.clone());
+		trace!("Initialized transaction for block {:?}", self.target);
+	}
+
 	pub fn apply(mut self, db: &Database) -> Result<(), Error> {
 		// actually saving meta
 		for (hash, meta) in self.meta.drain() {
@@ -27,6 +34,8 @@ impl UpdateContext {
 		}
 
 		try!(db.write(self.db_transaction));
+
+		trace!("Applied transaction for block {:?}", self.target);
 		Ok(())
 	}