def historical_update(blockheight):
""" Very long running task. Fills out the network difficulty values for all
blocks before the site was running. """
def add_one_minute_diff(diff, time):
try:
m = OneMinuteType(typ='netdiff', value=diff, time=time)
db.session.add(m)
db.session.commit()
except sqlalchemy.exc.IntegrityError:
db.session.rollback()
slc = OneMinuteType.query.with_lockmode('update').filter_by(
time=time, typ='netdiff').one()
# just average the diff of two blocks that occured in the same second..
slc.value = (diff + slc.value) / 2
db.session.commit()
for ht in xrange(blockheight, 0, -1):
hsh = coinserv.getblockhash(ht)
info = coinserv.getblock(hsh)
add_one_minute_diff(info['difficulty'] * 1000,
datetime.datetime.utcfromtimestamp(info['time']))
current_app.logger.info("Processed block height {}".format(ht))
db.session.commit()
OneMinuteType.compress()
db.session.commit()
FiveMinuteType.compress()
db.session.commit()
def historical_update(blockheight):
""" Very long running task. Fills out the network difficulty values for all
blocks before the site was running. """
def add_one_minute_diff(diff, time):
try:
m = OneMinuteType(typ='netdiff', value=diff, time=time)
db.session.add(m)
db.session.commit()
except sqlalchemy.exc.IntegrityError:
db.session.rollback()
slc = OneMinuteType.query.with_lockmode('update').filter_by(
time=time, typ='netdiff').one()
# just average the diff of two blocks that occured in the same second..
slc.value = (diff + slc.value) / 2
db.session.commit()
for ht in xrange(blockheight, 0, -1):
hsh = coinserv.getblockhash(ht)
info = coinserv.getblock(hsh)
add_one_minute_diff(info['difficulty'] * 1000,
datetime.datetime.utcfromtimestamp(info['time']))
current_app.logger.info("Processed block height {}".format(ht))
db.session.commit()
OneMinuteType.compress()
db.session.commit()
FiveMinuteType.compress()
db.session.commit()
def update_block_state(self):
"""
Loops through all immature and non-orphaned blocks.
First checks to see if blocks are orphaned,
then it checks to see if they are now matured.
"""
mature_diff = current_app.config['block_mature_confirms']
try:
# Select all immature & non-orphaned blocks
immature = (Block.query.filter_by(mature=False, orphan=False))
blockheight = coinserv.getblockcount()
for block in immature:
logger.info("Checking block height: {}".format(block.height))
# Check to see if the block hash exists in the block chain
try:
output = coinserv.getblock(block.hash)
logger.debug("Confirms: {}; Height diff: {}"
.format(output['confirmations'],
blockheight - block.height))
except CoinRPCException:
logger.info("Block {}:{} not in coin database, assume orphan!"
.format(block.height, block.hash))
block.orphan = True
else:
if output['confirmations'] > mature_diff:
logger.info("Block {}:{} meets {} confirms, mark mature"
.format(block.height, block.hash, mature_diff))
block.mature = True
elif (blockheight - block.height) > mature_diff and output['confirmations'] < mature_diff:
logger.info("Block {}:{} {} height ago, but not enough confirms. Marking orphan."
.format(block.height, block.hash, mature_diff))
block.orphan = True
db.session.commit()
except Exception as exc:
logger.error("Unhandled exception in update block status", exc_info=True)
db.session.rollback()
raise self.retry(exc=exc)