fix caching problem with chunks

[electrum-server.git] / backends / bitcoind / blockchain_processor.py

diff --git a/backends/bitcoind/blockchain_processor.py b/backends/bitcoind/blockchain_processor.py
index db02313..ef41793 100644 (file)
--- a/backends/bitcoind/blockchain_processor.py
+++ b/backends/bitcoind/blockchain_processor.py
@@ -16,6 +16,7 @@ class BlockchainProcessor(Processor):
         Processor.__init__(self)
 
         self.shared = shared
+        self.config = config
         self.up_to_date = False
         self.watched_addresses = []
         self.history_cache = {}
@@ -181,6 +182,11 @@ class BlockchainProcessor(Processor):
         if sync or len(self.headers_data) > 40*100:
             self.flush_headers()
 
+        with self.cache_lock:
+            chunk_index = header.get('block_height')/2016
+            if self.chunk_cache.get(chunk_index):
+                self.chunk_cache.pop(chunk_index)
+
     def pop_header(self):
         # we need to do this only if we have not flushed
         if self.headers_data:
@@ -197,10 +203,12 @@ class BlockchainProcessor(Processor):
 
     def get_chunk(self, i):
         # store them on disk; store the current chunk in memory
-        chunk = self.chunk_cache.get(i)
-        if not chunk:
-            chunk = self.read_chunk(i)
-            self.chunk_cache[i] = chunk
+        with self.cache_lock:
+            chunk = self.chunk_cache.get(i)
+            if not chunk:
+                chunk = self.read_chunk(i)
+                self.chunk_cache[i] = chunk
+
         return chunk
 
 
@@ -500,7 +508,9 @@ class BlockchainProcessor(Processor):
                       "write:%.2f "%(t3-t2), 
                       "max:", max_len, hash_160_to_bc_address(max_addr))
 
-        for addr in self.batch_list.keys(): self.invalidate_cache(addr)
+        for h160 in self.batch_list.keys(): 
+            addr = hash_160_to_bc_address(h160)
+            self.invalidate_cache(addr)
 
 
 
@@ -535,16 +545,22 @@ class BlockchainProcessor(Processor):
                 error = str(e) + ': ' + address
                 print_log( "error:", error )
 
-        elif method == 'blockchain.address.subscribe2':
+        elif method == 'blockchain.address.unsubscribe':
             try:
-                address = params[0]
-                result = self.get_status(address, cache_only)
-                self.watch_address(address)
+                password = params[0]
+                address = params[1]
+                if password == self.config.get('server','password'):
+                    self.watched_addresses.remove(address)
+                    print_log('unsubscribed', address)
+                    result = "ok"
+                else:
+                    print_log('incorrect password')
+                    result = "authentication error"
             except BaseException, e:
                 error = str(e) + ': ' + address
                 print_log( "error:", error )
 
-        elif method == 'blockchain.address.get_history2':
+        elif method == 'blockchain.address.get_history':
             try:
                 address = params[0]
                 result = self.get_history( address, cache_only )
@@ -686,7 +702,8 @@ class BlockchainProcessor(Processor):
             for x in tx.get('inputs'):
                 txi = (x.get('prevout_hash') + int_to_hex(x.get('prevout_n'), 4)).decode('hex')
                 try:
-                    addr = self.db.Get(txi)    
+                    h160 = self.db.Get(txi)
+                    addr = hash_160_to_bc_address(h160)
                 except:
                     continue
                 l = self.mempool_addresses.get(tx_hash, [])
@@ -776,8 +793,6 @@ class BlockchainProcessor(Processor):
             if addr in self.watched_addresses:
                 status = self.get_status( addr )
                 self.push_response({ 'id': None, 'method':'blockchain.address.subscribe', 'params':[addr, status] })
-                self.push_response({ 'id': None, 'method':'blockchain.address.subscribe2', 'params':[addr, status] })
-
 
         if not self.shared.stopped(): 
             threading.Timer(10, self.main_iteration).start()