89 lines
2.3 KiB
Python
89 lines
2.3 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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This file is part of the web2py Web Framework
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Developed by Massimo Di Pierro <mdipierro@cs.depaul.edu>,
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limodou <limodou@gmail.com> and srackham <srackham@gmail.com>.
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License: LGPLv3 (http://www.gnu.org/licenses/lgpl.html)
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"""
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import logging
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import pdb
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import Queue
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import sys
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logger = logging.getLogger("web2py")
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class Pipe(Queue.Queue):
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def __init__(self, name, mode='r', *args, **kwargs):
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self.__name = name
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Queue.Queue.__init__(self, *args, **kwargs)
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def write(self, data):
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logger.debug("debug %s writting %s" % (self.__name, data))
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self.put(data)
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def flush(self):
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# mark checkpoint (complete message)
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logger.debug("debug %s flushing..." % self.__name)
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self.put(None)
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# wait until it is processed
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self.join()
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logger.debug("debug %s flush done" % self.__name)
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def read(self, count=None, timeout=None):
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logger.debug("debug %s reading..." % (self.__name, ))
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data = self.get(block=True, timeout=timeout)
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# signal that we are ready
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self.task_done()
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logger.debug("debug %s read %s" % (self.__name, data))
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return data
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def readline(self):
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logger.debug("debug %s readline..." % (self.__name, ))
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return self.read()
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pipe_in = Pipe('in')
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pipe_out = Pipe('out')
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debugger = pdb.Pdb(completekey=None, stdin=pipe_in, stdout=pipe_out,)
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def set_trace():
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"breakpoint shortcut (like pdb)"
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logger.info("DEBUG: set_trace!")
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debugger.set_trace(sys._getframe().f_back)
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def stop_trace():
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"stop waiting for the debugger (called atexit)"
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# this should prevent communicate is wait forever a command result
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# and the main thread has finished
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logger.info("DEBUG: stop_trace!")
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pipe_out.write("debug finished!")
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pipe_out.write(None)
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#pipe_out.flush()
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def communicate(command=None):
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"send command to debbuger, wait result"
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if command is not None:
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logger.info("DEBUG: sending command %s" % command)
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pipe_in.write(command)
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#pipe_in.flush()
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result = []
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while True:
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data = pipe_out.read()
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if data is None:
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break
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result.append(data)
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logger.info("DEBUG: result %s" % repr(result))
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return ''.join(result)
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