34 lines
843 B
Python
34 lines
843 B
Python
from eventlet import greenthread
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from eventlet.zipkin import api
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__original_init__ = greenthread.GreenThread.__init__
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__original_main__ = greenthread.GreenThread.main
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def _patched__init(self, parent):
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# parent thread saves current TraceData from tls to self
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if api.is_tracing():
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self.trace_data = api.get_trace_data()
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__original_init__(self, parent)
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def _patched_main(self, function, args, kwargs):
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# child thread inherits TraceData
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if hasattr(self, 'trace_data'):
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api.set_trace_data(self.trace_data)
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__original_main__(self, function, args, kwargs)
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def patch():
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greenthread.GreenThread.__init__ = _patched__init
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greenthread.GreenThread.main = _patched_main
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def unpatch():
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greenthread.GreenThread.__init__ = __original_init__
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greenthread.GreenThread.main = __original_main__
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