def reset_db_state():
"""boom! blow away all applicable collections in mongo"""
config.mongo_db.processed_blocks.drop()
# create/update default app_config object
config.mongo_db.app_config.update(
{},
{
'db_version': config.DB_VERSION, # counterblockd database version
'running_testnet': config.TESTNET,
'counterpartyd_db_version_major': None,
'counterpartyd_db_version_minor': None,
'counterpartyd_running_testnet': None,
'last_block_assets_compiled': config.
BLOCK_FIRST, # for asset data compilation in tasks.py (resets on reparse as well)
},
upsert=True)
app_config = config.mongo_db.app_config.find()[0]
# reinitialize some internal counters
config.state['my_latest_block'] = {'block_index': 0}
config.state['last_message_index'] = -1
# call any rollback processors for any extension modules
RollbackProcessor.run_active_functions(None)
return app_config
def rollback(max_block_index):
"""called if there are any records for blocks higher than this in the database? If so, they were impartially created
and we should get rid of them
NOTE: after calling this function, you should always trigger a "continue" statement to reiterate the processing loop
(which will get a new cp_latest_block from counterpartyd and resume as appropriate)
"""
assert isinstance(max_block_index,
int) and max_block_index >= config.BLOCK_FIRST
if not config.mongo_db.processed_blocks.find_one(
{"block_index": max_block_index}):
raise Exception(
"Can't roll back to specified block index: %i doesn't exist in database"
% max_block_index)
logger.warn("Pruning to block %i ..." % (max_block_index))
config.mongo_db.processed_blocks.remove(
{"block_index": {
"$gt": max_block_index
}})
config.state['last_message_index'] = -1
config.state['caught_up'] = False
cache.clear_block_info_cache()
config.state[
'my_latest_block'] = config.mongo_db.processed_blocks.find_one(
{"block_index": max_block_index}) or config.LATEST_BLOCK_INIT
# call any rollback processors for any extension modules
RollbackProcessor.run_active_functions(max_block_index)
def rollback(max_block_index):
"""called if there are any records for blocks higher than this in the database? If so, they were impartially created
and we should get rid of them
NOTE: after calling this function, you should always trigger a "continue" statement to reiterate the processing loop
(which will get a new cp_latest_block from counterpartyd and resume as appropriate)
"""
assert isinstance(max_block_index, (int, long)) and max_block_index >= config.BLOCK_FIRST
if not config.mongo_db.processed_blocks.find_one({"block_index": max_block_index}):
raise Exception("Can't roll back to specified block index: %i doesn't exist in database" % max_block_index)
logger.warn("Pruning to block %i ..." % (max_block_index))
config.mongo_db.processed_blocks.remove({"block_index": {"$gt": max_block_index}})
config.state['last_message_index'] = -1
config.state['caught_up'] = False
cache.blockinfo_cache.clear()
config.state['my_latest_block'] = config.mongo_db.processed_blocks.find_one({"block_index": max_block_index}) or config.LATEST_BLOCK_INIT
#call any rollback processors for any extension modules
RollbackProcessor.run_active_functions(max_block_index)
def reset_db_state():
"""boom! blow away all applicable collections in mongo"""
config.mongo_db.processed_blocks.drop()
#create/update default app_config object
config.mongo_db.app_config.update({}, {
'db_version': config.DB_VERSION, #counterblockd database version
'running_testnet': config.TESTNET,
'counterpartyd_db_version_major': None,
'counterpartyd_db_version_minor': None,
'counterpartyd_running_testnet': None,
'last_block_assets_compiled': config.BLOCK_FIRST, #for asset data compilation in tasks.py (resets on reparse as well)
}, upsert=True)
app_config = config.mongo_db.app_config.find()[0]
#reinitialize some internal counters
config.state['my_latest_block'] = {'block_index': 0}
config.state['last_message_index'] = -1
#call any rollback processors for any extension modules
RollbackProcessor.run_active_functions(None)
return app_config
