Better thread tracing in debug.py

This commit is contained in:
Luke Campagnola 2015-05-12 11:14:02 -04:00
parent 9df4df55c4
commit be1ed10d9a

View File

@ -1097,46 +1097,44 @@ def pretty(data, indent=''):
return ret
class PeriodicTrace(object):
class ThreadTrace(object):
"""
Used to debug freezing by starting a new thread that reports on the
location of the main thread periodically.
location of other threads periodically.
"""
class ReportThread(QtCore.QThread):
def __init__(self):
self.frame = None
self.ind = 0
self.lastInd = None
def __init__(self, interval=10.0):
self.interval = interval
self.lock = Mutex()
QtCore.QThread.__init__(self)
self._stop = False
self.start()
def notify(self, frame):
def stop(self):
with self.lock:
self.frame = frame
self.ind += 1
self._stop = True
def start(self, interval=None):
if interval is not None:
self.interval = interval
self._stop = False
self.thread = threading.Thread(target=self.run)
self.thread.daemon = True
self.thread.start()
def run(self):
while True:
time.sleep(1)
with self.lock:
if self.lastInd != self.ind:
print("== Trace %d: ==" % self.ind)
traceback.print_stack(self.frame)
self.lastInd = self.ind
if self._stop is True:
return
def __init__(self):
self.mainThread = threading.current_thread()
self.thread = PeriodicTrace.ReportThread()
self.thread.start()
sys.settrace(self.trace)
def trace(self, frame, event, arg):
if threading.current_thread() is self.mainThread: # and 'threading' not in frame.f_code.co_filename:
self.thread.notify(frame)
# print("== Trace ==", event, arg)
# traceback.print_stack(frame)
return self.trace
print("\n============= THREAD FRAMES: ================")
for id, frame in sys._current_frames().items():
if id == threading.current_thread().ident:
continue
print("<< thread %d >>" % id)
traceback.print_stack(frame)
print("===============================================\n")
time.sleep(self.interval)
class ThreadColor(object):