def startup():
"""Startup Miro.
This method starts up the eventloop and schedules the rest of the startup
to run in the event loop.
Frontends should call this method, then wait for 1 of 2 messages
StartupSuccess is sent once the startup is done and the backend is ready
to go.
StartupFailure is sent if something bad happened.
initialize() must be called before startup().
"""
logging.info("Starting up %s", app.config.get(prefs.LONG_APP_NAME))
logging.info("Version: %s", app.config.get(prefs.APP_VERSION))
logging.info("Revision: %s", app.config.get(prefs.APP_REVISION))
logging.info("Builder: %s", app.config.get(prefs.BUILD_MACHINE))
logging.info("Build Time: %s", app.config.get(prefs.BUILD_TIME))
logging.info("Debugmode: %s", app.debugmode)
eventloop.connect('thread-started', finish_startup)
logging.info("Reading HTTP Password list")
httpauth.init()
httpauth.restore_from_file()
logging.info("Starting libCURL thread")
httpclient.init_libcurl()
httpclient.start_thread()
logging.info("Starting event loop thread")
eventloop.startup()
if DEBUG_DB_MEM_USAGE:
mem_usage_test_event.wait()
load_extensions()
def startup():
"""Startup Miro.
This method starts up the eventloop and schedules the rest of the startup
to run in the event loop.
Frontends should call this method, then wait for 1 of 2 messages
StartupSuccess is sent once the startup is done and the backend is ready
to go.
StartupFailure is sent if something bad happened.
initialize() must be called before startup().
"""
logging.info("Starting up %s", app.config.get(prefs.LONG_APP_NAME))
logging.info("Version: %s", app.config.get(prefs.APP_VERSION))
logging.info("Revision: %s", app.config.get(prefs.APP_REVISION))
logging.info("Builder: %s", app.config.get(prefs.BUILD_MACHINE))
logging.info("Build Time: %s", app.config.get(prefs.BUILD_TIME))
logging.info("Debugmode: %s", app.debugmode)
eventloop.connect('thread-started', startup_for_frontend)
logging.info("Reading HTTP Password list")
httpauth.init()
httpauth.restore_from_file()
logging.info("Starting libCURL thread")
httpclient.init_libcurl()
httpclient.start_thread()
logging.info("Starting event loop thread")
eventloop.startup()
if DEBUG_DB_MEM_USAGE:
mem_usage_test_event.wait()
load_extensions()
def launch_downloader_daemon():
# Increase the maximum file descriptor count (to the max)
# NOTE: the info logging is REQUIRED for some unknown reason, if it is not
# done here, no further logging can be done in the daemon and it gets stuck.
try:
import resource
logging.info('Increasing file descriptor count limit in Downloader')
resource.setrlimit(resource.RLIMIT_NOFILE, (10240, -1))
except ValueError:
logging.warn('setrlimit failed.')
# Make sure we don't leak from the downloader eventloop
from miro import eventloop
def beginLoop(loop):
loop.pool = Foundation.NSAutoreleasePool.alloc().init()
eventloop.connect('begin-loop', beginLoop)
eventloop.connect('thread-will-start', beginLoop)
def endLoop(loop):
del loop.pool
eventloop.connect('end-loop', endLoop)
eventloop.connect('thread-did-start', endLoop)
# And launch
from miro.dl_daemon import Democracy_Downloader
Democracy_Downloader.launch()
# Wait for the event loop thread to finish.
# Although this is theorically not necessary since the event loop thread is
# a non-daemon thread, situations where the downloader daemon exits right
# after its launch as this function returns have been seen in the wild.
eventloop.join()
def launch_downloader_daemon():
# Increase the maximum file descriptor count (to the max)
# NOTE: the info logging is REQUIRED for some unknown reason, if it is not
# done here, no further logging can be done in the daemon and it gets stuck.
try:
import resource
logging.debug('Increasing file descriptor count limit in Downloader')
resource.setrlimit(resource.RLIMIT_NOFILE, (10240, -1))
except ValueError:
logging.warn('setrlimit failed.')
# Make sure we don't leak from the downloader eventloop
from miro import eventloop
def beginLoop(loop):
loop.pool = Foundation.NSAutoreleasePool.alloc().init()
eventloop.connect('begin-loop', beginLoop)
eventloop.connect('thread-will-start', beginLoop)
def endLoop(loop):
del loop.pool
eventloop.connect('end-loop', endLoop)
eventloop.connect('thread-did-start', endLoop)
# And launch
from miro.dl_daemon import MiroDownloader
MiroDownloader.launch()
# Wait for the event loop thread to finish.
# Although this is theorically not necessary since the event loop thread is
# a non-daemon thread, situations where the downloader daemon exits right
# after its launch as this function returns have been seen in the wild.
eventloop.join()
def __init__(self, path=None, object_schemas=None, schema_version=None):
if path is None:
path = app.config.get(prefs.SQLITE_PATHNAME)
if object_schemas is None:
object_schemas = schema.object_schemas
if schema_version is None:
schema_version = schema.VERSION
# version of sqlite3
try:
logging.info("Sqlite3 version: %s", sqlite3.sqlite_version)
except AttributeError:
logging.info("sqlite3 has no sqlite_version attribute.")
# version of the sqlite python bindings
try:
logging.info("Pysqlite version: %s", sqlite3.version)
except AttributeError:
logging.info("sqlite3 has no version attribute.")
db_existed = os.path.exists(path)
self.raise_load_errors = False # only gets set in unittests
self._dc = None
self._query_times = {}
self.path = path
self._quitting_from_operational_error = False
self._object_schemas = object_schemas
self._schema_version = schema_version
self._schema_map = {}
self._schema_column_map = {}
self._all_schemas = []
self._object_map = {} # maps object id -> DDBObjects in memory
self._ids_loaded = set()
self._statements_in_transaction = []
eventloop.connect("event-finished", self.on_event_finished)
for oschema in object_schemas:
self._all_schemas.append(oschema)
for klass in oschema.ddb_object_classes():
self._schema_map[klass] = oschema
for field_name, schema_item in oschema.fields:
klass.track_attribute_changes(field_name)
for name, schema_item in oschema.fields:
self._schema_column_map[oschema, name] = schema_item
self._converter = SQLiteConverter()
self.open_connection()
if not db_existed:
self._init_database()
def connect_to_signals(self):
Application.connect_to_signals(self)
eventloop.connect('thread-will-start', self.beginLoop)
eventloop.connect('thread-did-start', self.endLoop)
eventloop.connect('begin-loop', self.beginLoop)
eventloop.connect('end-loop', self.endLoop)
httpclient.register_on_start(
lambda cm: cm.connect('begin-loop', self.beginLoop))
httpclient.register_on_start(
lambda cm: cm.connect('end-loop', self.endLoop))
def connect_to_signals(self):
Application.connect_to_signals(self)
eventloop.connect('thread-will-start', self.beginLoop)
eventloop.connect('thread-did-start', self.endLoop)
eventloop.connect('begin-loop', self.beginLoop)
eventloop.connect('end-loop', self.endLoop)
httpclient.register_on_start(
lambda cm: cm.connect('begin-loop', self.beginLoop))
httpclient.register_on_start(
lambda cm: cm.connect('end-loop', self.endLoop))
