标签：trace pen ready rac import one stat rmi start
1. 创造日志handler： 在status_only模式，不需要日志以及UI
# Ensure logging messages get sent to the UI as events
handler = bb.event.LogHandler()
if not configParams.status_only:
# In status only mode there are no logs and no UI
logger.addHandler(handler)
2. 取得ui模块并设置特征集：
if configParams.server_only:
featureset = []
ui_module = None
else:
ui_module = import_extension_module(bb.ui, configParams.ui, ‘main‘)
# Collect the feature set for the UI
featureset = getattr(ui_module, "featureSet", [])
if extrafeatures:
for feature in extrafeatures:
if not feature in featureset:
featureset.append(feature)
3. 远程模式下返回远程server连接：
server_connection = None
if configParams.remote_server:
# Connect to a remote XMLRPC server
server_connection = bb.server.xmlrpcclient.connectXMLRPC(configParams.remote_server, featureset,
configParams.observe_only, configParams.xmlrpctoken)
4. 本地模式下返回本地server连接：
else:
retries = 8
while retries:
try:
topdir, lock = lockBitbake()
sockname = topdir + "/bitbake.sock"
if lock:
if configParams.status_only or configParams.kill_server:
logger.info("bitbake server is not running.")
lock.close()
return None, None
# we start a server with a given configuration
logger.info("Starting bitbake server...")
# Clear the event queue since we already displayed messages
bb.event.ui_queue = []
server = bb.server.process.BitBakeServer(lock, sockname, configuration, featureset)
else:
logger.info("Reconnecting to bitbake server...")
if not os.path.exists(sockname):
print("Previous bitbake instance shutting down?, waiting to retry...")
i = 0
lock = None
# Wait for 5s or until we can get the lock
while not lock and i < 50:
time.sleep(0.1)
_, lock = lockBitbake()
i += 1
if lock:
bb.utils.unlockfile(lock)
raise bb.server.process.ProcessTimeout("Bitbake still shutting down as socket exists but no lock?")
if not configParams.server_only:
try:
server_connection = bb.server.process.connectProcessServer(sockname, featureset)
except EOFError:
# The server may have been shutting down but not closed the socket yet. If that happened,
# ignore it.
pass
if server_connection or configParams.server_only:
break
except BBMainFatal:
raise
except (Exception, bb.server.process.ProcessTimeout) as e:
if not retries:
raise
retries -= 1
if isinstance(e, (bb.server.process.ProcessTimeout, BrokenPipeError)):
logger.info("Retrying server connection...")
else:
logger.info("Retrying server connection... (%s)" % traceback.format_exc())
if not retries:
bb.fatal("Unable to connect to bitbake server, or start one")
if retries < 5:
time.sleep(5)
5. 清理日志handler，返回服务器连接以及ui模块：
if configParams.kill_server:
server_connection.connection.terminateServer()
server_connection.terminate()
bb.event.ui_queue = []
logger.info("Terminated bitbake server.")
return None, None
# Restore the environment in case the UI needs it
for k in cleanedvars:
os.environ[k] = cleanedvars[k]
logger.removeHandler(handler)
return server_connection, ui_module
yocto-sumo源码解析（六）: setup_bitbake
标签：trace pen ready rac import one stat rmi start
原文地址：https://www.cnblogs.com/shortnil/p/9665268.html
