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def _current_frames(space):
"""_current_frames() -> dictionary
Return a dictionary mapping each current thread T's thread id to T's
current stack frame. Functions in the traceback module can build the
call stack given such a frame.
Note that in PyPy with the JIT, calling this function causes a runtime
penalty in all threads, depending on the internal JIT state. In each
thread, the penalty should only be noticeable if this call was done
while in the middle of a long-running function.
This function should be used for specialized purposes only."""
w_result = space.newdict()
ecs = space.threadlocals.getallvalues()
for thread_ident, ec in ecs.items():
w_topframe = ec.gettopframe_nohidden()
if w_topframe is None:
continue
space.setitem(w_result,
space.newint(thread_ident),
w_topframe)
return w_result
def _current_exceptions(space):
"""_current_exceptions() -> dictionary
Return a dict mapping each thread's identifier to its current raised
exception.
Note that in PyPy with the JIT, calling this function causes a runtime
penalty in all threads, depending on the internal JIT state. In each
thread, the penalty should only be noticeable if this call was done
while in the middle of a long-running function.
This function should be used for specialized purposes only."""
w_result = space.newdict()
ecs = space.threadlocals.getallvalues()
for thread_ident, ec in ecs.items():
operror = ec.sys_exc_info()
if not operror:
space.setitem(w_result,
space.newint(thread_ident),
space.newtuple([space.w_None] * 3))
else:
space.setitem(w_result,
space.newint(thread_ident),
space.newtuple([operror.w_type,
operror.get_w_value(space),
operror.get_w_traceback(space)]))
return w_result
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