def kill_trinity_gracefully(
logger: logging.Logger,
database_server_process: Any,
networking_process: Any,
plugin_manager: PluginManager,
event_bus: EventBus,
message: str = "Trinity shudown complete\n") -> None:
# When a user hits Ctrl+C in the terminal, the SIGINT is sent to all processes in the
# foreground *process group*, so both our networking and database processes will terminate
# at the same time and not sequentially as we'd like. That shouldn't be a problem but if
# we keep getting unhandled BrokenPipeErrors/ConnectionResetErrors like reported in
# https://github.com/ethereum/py-evm/issues/827, we might want to change the networking
# process' signal handler to wait until the DB process has terminated before doing its
# thing.
# Notice that we still need the kill_process_gracefully() calls here, for when the user
# simply uses 'kill' to send a signal to the main process, but also because they will
# perform a non-gracefull shutdown if the process takes too long to terminate.
logger.info('Keyboard Interrupt: Stopping')
plugin_manager.shutdown()
event_bus.shutdown()
kill_process_gracefully(database_server_process, logger)
logger.info('DB server process (pid=%d) terminated',
database_server_process.pid)
# XXX: This short sleep here seems to avoid us hitting a deadlock when attempting to
# join() the networking subprocess: https://github.com/ethereum/py-evm/issues/940
time.sleep(0.2)
kill_process_gracefully(networking_process, logger)
logger.info('Networking process (pid=%d) terminated',
networking_process.pid)
# This is required to be within the `kill_trinity_gracefully` so that
# plugins can trigger a shutdown of the trinity process.
ArgumentParser().exit(message=message)
def kill_trinity_gracefully(logger: logging.Logger,
database_server_process: Any,
networking_process: Any,
plugin_manager: PluginManager,
main_endpoint: Endpoint,
event_bus: EventBus,
message: str="Trinity shudown complete\n") -> None:
# When a user hits Ctrl+C in the terminal, the SIGINT is sent to all processes in the
# foreground *process group*, so both our networking and database processes will terminate
# at the same time and not sequentially as we'd like. That shouldn't be a problem but if
# we keep getting unhandled BrokenPipeErrors/ConnectionResetErrors like reported in
# https://github.com/ethereum/py-evm/issues/827, we might want to change the networking
# process' signal handler to wait until the DB process has terminated before doing its
# thing.
# Notice that we still need the kill_process_gracefully() calls here, for when the user
# simply uses 'kill' to send a signal to the main process, but also because they will
# perform a non-gracefull shutdown if the process takes too long to terminate.
logger.info('Keyboard Interrupt: Stopping')
plugin_manager.shutdown_blocking()
main_endpoint.stop()
event_bus.stop()
for name, process in [("DB", database_server_process), ("Networking", networking_process)]:
# Our sub-processes will have received a SIGINT already (see comment above), so here we
# wait 2s for them to finish cleanly, and if they fail we kill them for real.
process.join(2)
if process.is_alive():
kill_process_gracefully(process, logger)
logger.info('%s process (pid=%d) terminated', name, process.pid)
# This is required to be within the `kill_trinity_gracefully` so that
# plugins can trigger a shutdown of the trinity process.
ArgumentParser().exit(message=message)
def kill_trinity_gracefully(logger: logging.Logger,
processes: Iterable[multiprocessing.Process],
plugin_manager: PluginManager,
main_endpoint: Endpoint,
event_bus: EventBus,
reason: str = None) -> None:
# When a user hits Ctrl+C in the terminal, the SIGINT is sent to all processes in the
# foreground *process group*, so both our networking and database processes will terminate
# at the same time and not sequentially as we'd like. That shouldn't be a problem but if
# we keep getting unhandled BrokenPipeErrors/ConnectionResetErrors like reported in
# https://github.com/ethereum/py-evm/issues/827, we might want to change the networking
# process' signal handler to wait until the DB process has terminated before doing its
# thing.
# Notice that we still need the kill_process_gracefully() calls here, for when the user
# simply uses 'kill' to send a signal to the main process, but also because they will
# perform a non-gracefull shutdown if the process takes too long to terminate.
hint = f"({reason})" if reason else f""
logger.info('Shutting down Trinity %s', hint)
plugin_manager.shutdown_blocking()
main_endpoint.stop()
event_bus.stop()
for process in processes:
# Our sub-processes will have received a SIGINT already (see comment above), so here we
# wait 2s for them to finish cleanly, and if they fail we kill them for real.
process.join(2)
if process.is_alive():
kill_process_gracefully(process, logger)
logger.info('%s process (pid=%d) terminated', process.name,
process.pid)
ArgumentParser().exit(message=f"Trinity shutdown complete {hint}\n")
def trinity_boot(args: Namespace, trinity_config: TrinityConfig,
extra_kwargs: Dict[str, Any], plugin_manager: PluginManager,
listener: logging.handlers.QueueListener, event_bus: EventBus,
main_endpoint: Endpoint, logger: logging.Logger) -> None:
# start the listener thread to handle logs produced by other processes in
# the local logger.
listener.start()
event_bus.start()
# First initialize the database process.
database_server_process = ctx.Process(
name="DB",
target=run_database_process,
args=(
trinity_config,
LevelDB,
),
kwargs=extra_kwargs,
)
# start the processes
database_server_process.start()
logger.info("Started DB server process (pid=%d)",
database_server_process.pid)
# networking process needs the IPC socket file provided by the database process
try:
wait_for_ipc(trinity_config.database_ipc_path)
except TimeoutError as e:
logger.error("Timeout waiting for database to start. Exiting...")
kill_process_gracefully(database_server_process, logger)
ArgumentParser().error(message="Timed out waiting for database start")
def kill_trinity_with_reason(reason: str) -> None:
kill_trinity_gracefully(logger, (database_server_process, ),
plugin_manager,
main_endpoint,
event_bus,
reason=reason)
main_endpoint.subscribe(ShutdownRequest,
lambda ev: kill_trinity_with_reason(ev.reason))
plugin_manager.prepare(args, trinity_config, extra_kwargs)
kill_trinity_with_reason("No beacon support yet. SOON!")
try:
loop = asyncio.get_event_loop()
loop.add_signal_handler(signal.SIGTERM,
lambda: kill_trinity_with_reason("SIGTERM"))
loop.run_forever()
loop.close()
except KeyboardInterrupt:
kill_trinity_with_reason("CTRL+C / Keyboard Interrupt")
async def test_stream_with_max() -> None:
bus = EventBus()
endpoint = bus.create_endpoint('test')
bus.start()
endpoint.connect()
stream_counter = 0
async def stream_response() -> None:
async for event in endpoint.stream(DummyRequest, max=2):
# Accessing `ev.property_of_dummy_request` here allows us to validate
# mypy has the type information we think it has. We run mypy on the tests.
print(event.property_of_dummy_request)
nonlocal stream_counter
stream_counter += 1
asyncio.ensure_future(stream_response())
# we broadcast one more item than what we consume and test for that
for i in range(3):
endpoint.broadcast(DummyRequest())
await asyncio.sleep(0.01)
endpoint.stop()
bus.stop()
assert stream_counter == 2
async def event_bus(event_loop):
bus = EventBus()
endpoint = bus.create_endpoint(NETWORKING_EVENTBUS_ENDPOINT)
bus.start(event_loop)
await endpoint.connect(event_loop)
try:
yield endpoint
finally:
endpoint.stop()
bus.stop()
async def event_bus(event_loop):
bus = EventBus()
endpoint = bus.create_endpoint('test')
bus.start(event_loop)
await endpoint.connect(event_loop)
try:
yield endpoint
finally:
endpoint.stop()
bus.stop()
def trinity_boot(args: Namespace,
trinity_config: TrinityConfig,
extra_kwargs: Dict[str, Any],
plugin_manager: PluginManager,
listener: logging.handlers.QueueListener,
event_bus: EventBus,
main_endpoint: Endpoint,
logger: logging.Logger) -> None:
# start the listener thread to handle logs produced by other processes in
# the local logger.
listener.start()
event_bus.start()
def kill_trinity_with_reason(reason: str) -> None:
kill_trinity_gracefully(
logger,
(),
plugin_manager,
main_endpoint,
event_bus,
reason=reason
)
main_endpoint.subscribe(
ShutdownRequest,
lambda ev: kill_trinity_with_reason(ev.reason)
)
plugin_manager.prepare(args, trinity_config, extra_kwargs)
try:
loop = asyncio.get_event_loop()
loop.add_signal_handler(signal.SIGTERM, lambda: kill_trinity_with_reason("SIGTERM"))
loop.run_forever()
loop.close()
except KeyboardInterrupt:
kill_trinity_with_reason("CTRL+C / Keyboard Interrupt")
async def test_response_must_match() -> None:
bus = EventBus()
endpoint = bus.create_endpoint('test')
bus.start()
endpoint.connect()
endpoint.subscribe(
DummyRequestPair,
lambda ev: endpoint.broadcast(
# We intentionally broadcast an unexpected response. Mypy can't catch
# this but we ensure it is caught and raised during the processing.
DummyRequest(),
ev.broadcast_config()))
with pytest.raises(UnexpectedResponse):
await endpoint.request(DummyRequestPair())
endpoint.stop()
bus.stop()
async def test_request() -> None:
bus = EventBus()
endpoint = bus.create_endpoint('test')
bus.start()
endpoint.connect()
endpoint.subscribe(
DummyRequestPair,
lambda ev: endpoint.broadcast(
# Accessing `ev.property_of_dummy_request_pair` here allows us to validate
# mypy has the type information we think it has. We run mypy on the tests.
DummyResponse(ev.property_of_dummy_request_pair),
ev.broadcast_config()))
response = await endpoint.request(DummyRequestPair())
# Accessing `ev.property_of_dummy_response` here allows us to validate
# mypy has the type information we think it has. We run mypy on the tests.
print(response.property_of_dummy_response)
assert isinstance(response, DummyResponse)
endpoint.stop()
bus.stop()
async def test_wait_for() -> None:
bus = EventBus()
endpoint = bus.create_endpoint('test')
bus.start()
endpoint.connect()
received = None
async def stream_response() -> None:
request = await endpoint.wait_for(DummyRequest)
# Accessing `ev.property_of_dummy_request` here allows us to validate
# mypy has the type information we think it has. We run mypy on the tests.
print(request.property_of_dummy_request)
nonlocal received
received = request
asyncio.ensure_future(stream_response())
endpoint.broadcast(DummyRequest())
await asyncio.sleep(0.01)
endpoint.stop()
bus.stop()
assert isinstance(received, DummyRequest)
def main() -> None:
event_bus = EventBus(ctx)
main_endpoint = event_bus.create_endpoint(MAIN_EVENTBUS_ENDPOINT)
main_endpoint.connect()
plugin_manager = setup_plugins(
MainAndIsolatedProcessScope(event_bus, main_endpoint))
plugin_manager.amend_argparser_config(parser, subparser)
args = parser.parse_args()
if args.network_id not in PRECONFIGURED_NETWORKS:
raise NotImplementedError(
"Unsupported network id: {0}. Only the ropsten and mainnet "
"networks are supported.".format(args.network_id))
logger, formatter, handler_stream = setup_trinity_stderr_logging(
args.stderr_log_level)
if args.log_levels:
setup_log_levels(args.log_levels)
try:
chain_config = ChainConfig.from_parser_args(args)
except AmbigiousFileSystem:
exit_because_ambigious_filesystem(logger)
if not is_data_dir_initialized(chain_config):
# TODO: this will only work as is for chains with known genesis
# parameters. Need to flesh out how genesis parameters for custom
# chains are defined and passed around.
try:
initialize_data_dir(chain_config)
except AmbigiousFileSystem:
exit_because_ambigious_filesystem(logger)
except MissingPath as e:
msg = (
"\n"
"It appears that {} does not exist.\n"
"Trinity does not attempt to create directories outside of its root path\n"
"Either manually create the path or ensure you are using a data directory\n"
"inside the XDG_TRINITY_ROOT path").format(e.path)
logger.error(msg)
sys.exit(1)
logger, log_queue, listener = setup_trinity_file_and_queue_logging(
logger,
formatter,
handler_stream,
chain_config,
args.file_log_level,
)
display_launch_logs(chain_config)
# compute the minimum configured log level across all configured loggers.
min_configured_log_level = min(args.stderr_log_level, args.file_log_level,
*(args.log_levels or {}).values())
extra_kwargs = {
'log_queue': log_queue,
'log_level': min_configured_log_level,
'profile': args.profile,
}
# Plugins can provide a subcommand with a `func` which does then control
# the entire process from here.
if hasattr(args, 'func'):
args.func(args, chain_config)
else:
trinity_boot(args, chain_config, extra_kwargs, plugin_manager,
listener, event_bus, main_endpoint, logger)
def helios_boot(args: Namespace, chain_config: ChainConfig,
extra_kwargs: Dict[str, Any], plugin_manager: PluginManager,
listener: logging.handlers.QueueListener, event_bus: EventBus,
main_endpoint: Endpoint, logger: logging.Logger) -> None:
# start the listener thread to handle logs produced by other processes in
# the local logger.
listener.start()
logger.info(
"Checking for any already running Helios Protocol processes that need shutting down. Remember that you can only run 1 instance at a time."
)
fix_unclean_shutdown(chain_config, logger)
with chain_config.process_id_file('main'):
networking_endpoint = event_bus.create_endpoint(
NETWORKING_EVENTBUS_ENDPOINT)
event_bus.start()
# First initialize the database process.
database_server_process = ctx.Process(
target=run_database_process,
args=(
chain_config,
LevelDB,
),
kwargs=extra_kwargs,
)
chain_processes = []
for i in range(chain_config.num_chain_processes):
chain_process = ctx.Process(
target=run_chain_process,
args=(chain_config, i),
kwargs=extra_kwargs,
)
chain_processes.append(chain_process)
networking_process = ctx.Process(
target=launch_node,
args=(
args,
chain_config,
networking_endpoint,
),
kwargs=extra_kwargs,
)
# start the processes
database_server_process.start()
logger.info("Started DB server process (pid=%d)",
database_server_process.pid)
# networking process needs the IPC socket file provided by the database process
try:
wait_for_ipc(chain_config.database_ipc_path)
except TimeoutError as e:
logger.error("Timeout waiting for database to start. Exiting...")
kill_process_gracefully(database_server_process, logger)
ArgumentParser().error(
message="Timed out waiting for database start")
for i in range(chain_config.num_chain_processes):
chain_process = chain_processes[i]
chain_process.start()
logger.info("Started chain instance {} process (pid={})".format(
i, chain_process.pid))
try:
wait_for_ipc(chain_config.get_chain_ipc_path(i))
except TimeoutError as e:
logger.error(
"Timeout waiting for chain instance {} to start. Exiting..."
.format(i))
kill_process_gracefully(chain_process, logger)
for j in range(i + 1):
kill_process_gracefully(chain_processes[j], logger)
ArgumentParser().error(
message="Timed out waiting for chain instance {} start".
format(i))
networking_process.start()
logger.info("Started networking process (pid=%d)",
networking_process.pid)
main_endpoint.subscribe(
ShutdownRequest, lambda ev: kill_helios_gracefully(
logger, database_server_process, chain_processes,
networking_process, plugin_manager, main_endpoint, event_bus))
plugin_manager.prepare(args, chain_config, extra_kwargs)
plugin_manager.broadcast(HeliosStartupEvent(args, chain_config))
try:
loop = asyncio.get_event_loop()
loop.run_forever()
loop.close()
except KeyboardInterrupt:
kill_helios_gracefully(logger, database_server_process,
chain_processes, networking_process,
plugin_manager, main_endpoint, event_bus)
def trinity_boot(args: Namespace,
trinity_config: TrinityConfig,
extra_kwargs: Dict[str, Any],
plugin_manager: PluginManager,
listener: logging.handlers.QueueListener,
event_bus: EventBus,
main_endpoint: Endpoint,
logger: logging.Logger) -> None:
# start the listener thread to handle logs produced by other processes in
# the local logger.
listener.start()
networking_endpoint = event_bus.create_endpoint(NETWORKING_EVENTBUS_ENDPOINT)
event_bus.start()
# First initialize the database process.
database_server_process = ctx.Process(
target=run_database_process,
args=(
trinity_config,
LevelDB,
),
kwargs=extra_kwargs,
)
networking_process = ctx.Process(
target=launch_node,
args=(args, trinity_config, networking_endpoint,),
kwargs=extra_kwargs,
)
# start the processes
database_server_process.start()
logger.info("Started DB server process (pid=%d)", database_server_process.pid)
# networking process needs the IPC socket file provided by the database process
try:
wait_for_ipc(trinity_config.database_ipc_path)
except TimeoutError as e:
logger.error("Timeout waiting for database to start. Exiting...")
kill_process_gracefully(database_server_process, logger)
ArgumentParser().error(message="Timed out waiting for database start")
networking_process.start()
logger.info("Started networking process (pid=%d)", networking_process.pid)
main_endpoint.subscribe(
ShutdownRequest,
lambda ev: kill_trinity_gracefully(
logger,
database_server_process,
networking_process,
plugin_manager,
main_endpoint,
event_bus
)
)
plugin_manager.prepare(args, trinity_config, extra_kwargs)
plugin_manager.broadcast(TrinityStartupEvent(
args,
trinity_config
))
try:
loop = asyncio.get_event_loop()
loop.run_forever()
loop.close()
except KeyboardInterrupt:
kill_trinity_gracefully(
logger,
database_server_process,
networking_process,
plugin_manager,
main_endpoint,
event_bus
)
def main() -> None:
event_bus = EventBus(ctx)
main_endpoint = event_bus.create_endpoint(MAIN_EVENTBUS_ENDPOINT)
main_endpoint.connect()
plugin_manager = setup_plugins(
MainAndIsolatedProcessScope(event_bus, main_endpoint)
)
plugin_manager.amend_argparser_config(parser, subparser)
args = parser.parse_args()
if args.network_id not in PRECONFIGURED_NETWORKS:
raise NotImplementedError(
"Unsupported network id: {0}. Only the ropsten and mainnet "
"networks are supported.".format(args.network_id)
)
has_ambigous_logging_config = (
args.log_levels is not None and
None in args.log_levels and
args.stderr_log_level is not None
)
if has_ambigous_logging_config:
parser.error(
"\n"
"Ambiguous logging configuration: The logging level for stderr was "
"configured with both `--stderr-log-level` and `--log-level`. "
"Please remove one of these flags",
)
if is_prerelease():
# this modifies the asyncio logger, but will be overridden by any custom settings below
enable_warnings_by_default()
stderr_logger, formatter, handler_stream = setup_trinity_stderr_logging(
args.stderr_log_level or (args.log_levels and args.log_levels.get(None))
)
if args.log_levels:
setup_log_levels(args.log_levels)
try:
trinity_config = TrinityConfig.from_parser_args(args)
except AmbigiousFileSystem:
parser.error(TRINITY_AMBIGIOUS_FILESYSTEM_INFO)
if not is_data_dir_initialized(trinity_config):
# TODO: this will only work as is for chains with known genesis
# parameters. Need to flesh out how genesis parameters for custom
# chains are defined and passed around.
try:
initialize_data_dir(trinity_config)
except AmbigiousFileSystem:
parser.error(TRINITY_AMBIGIOUS_FILESYSTEM_INFO)
except MissingPath as e:
parser.error(
"\n"
f"It appears that {e.path} does not exist. "
"Trinity does not attempt to create directories outside of its root path. "
"Either manually create the path or ensure you are using a data directory "
"inside the XDG_TRINITY_ROOT path"
)
file_logger, log_queue, listener = setup_trinity_file_and_queue_logging(
stderr_logger,
formatter,
handler_stream,
trinity_config,
args.file_log_level,
)
display_launch_logs(trinity_config)
# compute the minimum configured log level across all configured loggers.
min_configured_log_level = min(
stderr_logger.level,
file_logger.level,
*(args.log_levels or {}).values()
)
extra_kwargs = {
'log_queue': log_queue,
'log_level': min_configured_log_level,
'profile': args.profile,
}
# Plugins can provide a subcommand with a `func` which does then control
# the entire process from here.
if hasattr(args, 'func'):
args.func(args, trinity_config)
else:
trinity_boot(
args,
trinity_config,
extra_kwargs,
plugin_manager,
listener,
event_bus,
main_endpoint,
stderr_logger,
)
def main() -> None:
event_bus = EventBus(ctx)
main_endpoint = event_bus.create_endpoint(MAIN_EVENTBUS_ENDPOINT)
main_endpoint.connect()
plugin_manager = setup_plugins(
MainAndIsolatedProcessScope(event_bus, main_endpoint)
)
plugin_manager.amend_argparser_config(parser, subparser)
args = parser.parse_args()
#
# Dev testing stuff
#
if args.start_memory_profile:
os.environ["PYTHONTRACEMALLOC"] = '1'
if args.rand_db:
os.environ["GENERATE_RANDOM_DATABASE"] = 'true'
if args.instance is not None:
from helios.utils.xdg import get_xdg_helios_root
args.port = args.port + args.instance * 2
if args.instance != 0:
args.do_rpc_http_server = False
subdir = 'instance_' + str(args.instance)
absolute_path = get_xdg_helios_root() / subdir
absolute_dir = os.path.dirname(os.path.realpath(__file__))
absolute_keystore_path = absolute_dir + '/keystore/'
args.keystore_path = absolute_keystore_path + subdir
args.keystore_password = '******'
os.environ["HELIOS_DATA_DIR"] = str(absolute_path.resolve())
os.environ["INSTANCE_NUMBER"] = str(args.instance)
#
#
#
if not args.keystore_password and not hasattr(args, 'func'):
password = getpass.getpass(prompt='Keystore Password: '******'default'] = TRACE_LEVEL_NUM
log_levels['hvm'] = TRACE_LEVEL_NUM
log_levels['hp2p'] = TRACE_LEVEL_NUM
log_levels['helios'] = TRACE_LEVEL_NUM
log_levels['urllib3'] = TRACE_LEVEL_NUM
log_levels['ssdp'] = TRACE_LEVEL_NUM
log_levels['Service'] = TRACE_LEVEL_NUM
log_levels['Action'] = TRACE_LEVEL_NUM
log_levels['Device'] = TRACE_LEVEL_NUM
log_levels['helios.extensibility'] = TRACE_LEVEL_NUM
else:
log_levels['default'] = logging.INFO
log_levels['urllib3'] = logging.INFO
log_levels['ssdp'] = logging.INFO
log_levels['Service'] = logging.INFO
log_levels['hvm'] = logging.DEBUG #sets all of hvm
log_levels['hvm.db.account.AccountDB'] = logging.DEBUG
log_levels['hvm.vm.base.VM.VM'] = logging.DEBUG
log_levels['hvm.chain'] = logging.DEBUG
#log_levels['hvm.chain.chain.Chain'] = logging.DEBUG
log_levels['hvm.db.chain_head.ChainHeadDB'] = logging.DEBUG
log_levels['hvm.db.chain_db.ChainDB'] = logging.DEBUG
log_levels['hvm.db.consensus'] = logging.DEBUG
log_levels['hvm.memoryLogger'] = logging.DEBUG
#log_levels['hp2p'] = logging.INFO
log_levels['hp2p.peer'] = logging.DEBUG
log_levels['hp2p.peer.PeerPool'] = logging.DEBUG
log_levels['hp2p.consensus.Consensus'] = logging.DEBUG
log_levels['hp2p.SmartContractChainManager'] = logging.DEBUG
log_levels['hp2p.kademlia.KademliaProtocol'] = logging.DEBUG
log_levels['hp2p.discovery.DiscoveryProtocol'] = logging.INFO
log_levels['hp2p.discovery.DiscoveryService'] = logging.INFO
log_levels['hp2p.nat.UPnPService'] = logging.CRITICAL
log_levels['connectionpool'] = logging.CRITICAL
log_levels['hp2p.protocol'] = logging.DEBUG
log_levels['hp2p.protocol.Protocol'] = logging.DEBUG
#log_levels['helios'] = logging.INFO
log_levels['helios.rpc.ipc'] = logging.INFO
log_levels['helios.Node'] = logging.INFO
log_levels['helios.sync'] = logging.DEBUG
log_levels['helios.protocol'] = logging.INFO
log_levels['helios.protocol.common'] = logging.DEBUG
log_levels['helios.protocol.hls.peer.HLSPeer'] = 5
log_levels['helios.memoryLogger'] = logging.DEBUG
log_levels['hp2p.hls'] = logging.INFO
log_levels['helios.server.FullServer'] = logging.DEBUG
log_levels['Action'] = logging.INFO
log_levels['Device'] = logging.INFO
log_levels['helios.extensibility'] = logging.INFO
setup_log_levels(log_levels = log_levels)
try:
chain_config = ChainConfig.from_parser_args(args)
except AmbigiousFileSystem:
parser.error(HELIOS_AMBIGIOUS_FILESYSTEM_INFO)
if not is_data_dir_initialized(chain_config):
# TODO: this will only work as is for chains with known genesis
# parameters. Need to flesh out how genesis parameters for custom
# chains are defined and passed around.
try:
initialize_data_dir(chain_config)
except AmbigiousFileSystem:
parser.error(HELIOS_AMBIGIOUS_FILESYSTEM_INFO)
except MissingPath as e:
parser.error(
"\n"
f"It appears that {e.path} does not exist. "
"Helios does not attempt to create directories outside of its root path. "
"Either manually create the path or ensure you are using a data directory "
"inside the XDG_HELIOS_ROOT path"
)
file_logger, log_queue, listener = setup_helios_file_and_queue_logging(
stderr_logger,
formatter,
handler_stream,
chain_config,
args.file_log_level,
)
display_launch_logs(chain_config)
# compute the minimum configured log level across all configured loggers.
min_configured_log_level = min(
stderr_logger.level,
file_logger.level,
*(args.log_levels or {}).values(),
*(log_levels or {}).values()
)
extra_kwargs = {
'log_queue': log_queue,
'log_level': min_configured_log_level,
'log_levels': log_levels,
'profile': args.profile,
}
# Plugins can provide a subcommand with a `func` which does then control
# the entire process from here.
if hasattr(args, 'func'):
args.func(args, chain_config)
else:
helios_boot(
args,
chain_config,
extra_kwargs,
plugin_manager,
listener,
event_bus,
main_endpoint,
stderr_logger,
)
def run_proc2(endpoint):
loop = asyncio.get_event_loop()
endpoint.connect()
loop.run_until_complete(proc2_worker(endpoint))
async def proc2_worker(endpoint):
for i in range(3):
result = await endpoint.request(GetSomethingRequest())
print(result.payload)
if __name__ == "__main__":
# Configure and start event bus
ctx = multiprocessing.get_context('spawn')
event_bus = EventBus(ctx)
e1 = event_bus.create_endpoint('e1')
e2 = event_bus.create_endpoint('e2')
event_bus.start()
# Start two processes and pass in event bus endpoints
p1 = ctx.Process(target=run_proc1, args=(e1, ))
p1.start()
p2 = ctx.Process(target=run_proc2, args=(e2, ))
p2.start()
asyncio.get_event_loop().run_forever()