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This is handy when we're debugging the thread locks: we can try to understand which thread does what and how it was called. Signed-off-by: Eygene Ryabinkin <rea@codelabs.ru>
26 lines
679 B
Python
26 lines
679 B
Python
# Copyright 2013 Eygene A. Ryabinkin
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# Functions to perform stack tracing (for multithreaded programs
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# as well as for single-threaded ones).
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import sys
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import threading
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import traceback
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def dump(out):
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""" Dumps current stack trace into I/O object 'out' """
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id2name = {}
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for th in threading.enumerate():
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id2name[th.ident] = th.name
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n = 0
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for i, stack in sys._current_frames().items():
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out.write ("\n# Thread #%d (id=%d), %s\n" % \
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(n, i, id2name[i]))
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n = n + 1
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for f, lno, name, line in traceback.extract_stack (stack):
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out.write ('File: "%s", line %d, in %s' % \
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(f, lno, name))
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if line:
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out.write (" %s" % (line.strip()))
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out.write ("\n")
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