def getblock(self, blkhash):
block = self.blk_cache.get(blkhash)
if block is not None:
return block
ser_hash = ser_uint256(blkhash)
try:
# Lookup the block index, seek in the file
fpos = long(self.db.Get('blocks:' + ser_hash))
self.blk_read.seek(fpos)
# read and decode "block" msg
recvbuf = self.blk_read.read(4 + 4)
if recvbuf[:4] == 'ZLIB':
msg_len = int(recvbuf[4:8].encode('hex'), 16)
recvbuf = self.blk_read.read(msg_len)
f = cStringIO.StringIO(zlib.decompress(recvbuf))
msg = message_read(self.netmagic, f)
else:
self.blk_read.seek(fpos)
msg = message_read(self.netmagic, self.blk_read)
if msg is None:
return None
block = msg.block
except KeyError:
return None
self.blk_cache.put(blkhash, block)
return block
def getblock(self, blkhash):
block = self.blk_cache.get(blkhash)
if block is not None:
return block
ser_hash = ser_uint256(blkhash)
try:
# Lookup the block index, seek in the file
fpos = long(self.db.Get('blocks:'+ser_hash))
self.blk_read.seek(fpos)
# read and decode "block" msg
recvbuf = self.blk_read.read(4+4)
if recvbuf[:4] == 'ZLIB':
msg_len = int(recvbuf[4:8].encode('hex'),16)
recvbuf = self.blk_read.read(msg_len)
f = cStringIO.StringIO(zlib.decompress(recvbuf))
msg = message_read(self.netmagic, f)
else:
self.blk_read.seek(fpos)
msg = message_read(self.netmagic, self.blk_read)
if msg is None:
return None
block = msg.block
except KeyError:
return None
self.blk_cache.put(blkhash, block)
return block
def getblock(self, blkhash):
block = self.blk_cache.get(blkhash)
if block is not None:
return block
ser_hash = ser_uint256(blkhash)
try:
# Lookup the block index, seek in the file
fpos = long(self.db.Get('blocks:' + ser_hash))
self.blk_read.seek(fpos)
# read and decode "block" msg
if self.compression:
msg = message_read(self.netmagic,
self.block_decompress(self.blk_read))
else:
msg = message_read(self.netmagic, self.blk_read)
if msg is None:
return None
block = msg.block
except KeyError:
return None
self.blk_cache.put(blkhash, block)
return block
def getblock(self, blkhash):
block = self.blk_cache.get(blkhash)
if block is not None:
return block
ser_hash = ser_uint256(blkhash)
try:
# Lookup the block index, seek in the file
fpos = long(self.db.Get('blocks:'+ser_hash))
self.blk_read.seek(fpos)
# read and decode "block" msg
if self.compression:
msg = message_read(self.netmagic, self.block_decompress(self.blk_read))
else:
msg = message_read(self.netmagic, self.blk_read)
if msg is None:
return None
block = msg.block
except KeyError:
return None
self.blk_cache.put(blkhash, block)
return block