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import sys
import time
import socket
import CallTips
import RemoteDebugger
import RemoteObjectBrowser
import StackViewer
import rpc
import __main__
def main():
"""Start the Python execution server in a subprocess
In the Python subprocess, RPCServer is instantiated with handlerclass
MyHandler, which inherits register/unregister methods from RPCHandler via
the mix-in class SocketIO.
When the RPCServer svr is instantiated, the TCPServer initialization
creates an instance of run.MyHandler and calls its handle() method.
handle() instantiates a run.Executive object, passing it a reference to the
MyHandler object. That reference is saved as attribute rpchandler of the
Executive instance. The Executive methods have access to the reference and
can pass it on to entities that they command
(e.g. RemoteDebugger.Debugger.start_debugger()). The latter, in turn, can
call MyHandler(SocketIO) register/unregister methods via the reference to
register and unregister themselves.
"""
port = 8833
if sys.argv[1:]:
port = int(sys.argv[1])
sys.argv[:] = [""]
addr = ("localhost", port)
for i in range(6):
time.sleep(i)
try:
svr = rpc.RPCServer(addr, MyHandler)
break
except socket.error, err:
if i < 3:
print>>sys.__stderr__, ".. ",
else:
print>>sys.__stderr__,"\nPython subprocess socket error: "\
+ err[1] + ", retrying...."
else:
print>>sys.__stderr__, "\nConnection to Idle failed, exiting."
sys.exit()
svr.handle_request() # A single request only
class MyHandler(rpc.RPCHandler):
def handle(self):
executive = Executive(self)
self.register("exec", executive)
sys.stdin = self.get_remote_proxy("stdin")
sys.stdout = self.get_remote_proxy("stdout")
sys.stderr = self.get_remote_proxy("stderr")
rpc.RPCHandler.handle(self)
class Executive:
def __init__(self, rpchandler):
self.rpchandler = rpchandler
self.locals = __main__.__dict__
self.calltip = CallTips.CallTips()
def runcode(self, code):
exec code in self.locals
def start_the_debugger(self, gui_adap_oid):
return RemoteDebugger.start_debugger(self.rpchandler, gui_adap_oid)
def stop_the_debugger(self, idb_adap_oid):
"Unregister the Idb Adapter. Link objects and Idb then subject to GC"
self.rpchandler.unregister(idb_adap_oid)
def get_the_calltip(self, name):
return self.calltip.fetch_tip(name)
def stackviewer(self, flist_oid=None):
if not hasattr(sys, "last_traceback"):
return None
flist = None
if flist_oid is not None:
flist = self.rpchandler.get_remote_proxy(flist_oid)
tb = sys.last_traceback
while tb and tb.tb_frame.f_globals["__name__"] in ["rpc", "run"]:
tb = tb.tb_next
item = StackViewer.StackTreeItem(flist, tb)
return RemoteObjectBrowser.remote_object_tree_item(item)
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