def attach_debugger(host='localhost', port=6000, authkey='secret password'):
import gluon.contrib.qdb as qdb
import gluon.debug
from multiprocessing.connection import Listener
if isinstance(authkey, unicode):
authkey = authkey.encode('utf8')
if not hasattr(gluon.debug, 'qdb_listener'):
# create a remote debugger server and wait for connection
address = (host, port) # family is deduced to be 'AF_INET'
gluon.debug.qdb_listener = Listener(address, authkey=authkey)
gluon.debug.qdb_connection = gluon.debug.qdb_listener.accept()
# create the backend
gluon.debug.qdb_debugger = qdb.Qdb(gluon.debug.qdb_connection)
gluon.debug.dbg = gluon.debug.qdb_debugger
# welcome message (this should be displayed on the frontend)
print 'debugger connected to', gluon.debug.qdb_listener.last_accepted
return True # connection successful!
def do_quit(self):
qdb.Frontend.do_quit(self)
def do_exec(self, statement):
interact_lock.acquire()
try:
# check to see if we're inside interaction
if self.filename:
# avoid spurious interaction notifications:
self.set_burst(2)
# execute the statement in the remote debugger:
return qdb.Frontend.do_exec(self, statement)
finally:
interact_lock.release()
# create the connection between threads:
parent_queue, child_queue = Queue.Queue(), Queue.Queue()
front_conn = qdb.QueuePipe("parent", parent_queue, child_queue)
child_conn = qdb.QueuePipe("child", child_queue, parent_queue)
web_debugger = WebDebugger(front_conn) # frontend
qdb_debugger = qdb.Qdb(pipe=child_conn, redirect_stdio=False, skip=None) # backend
dbg = qdb_debugger
# enable getting context (stack, globals/locals) at interaction
qdb_debugger.set_params(dict(call_stack=True, environment=True))
import gluon.main
gluon.main.global_settings.debugging = True