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PyObject * PyEval_EvalFrameEx
(PyFrameObject *f, int
throwflag)
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void
PyEval_AcquireThread
(PyThreadState *tstate)
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void
PyEval_ReleaseThread
(PyThreadState *tstate)
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#define
Py_BEGIN_ALLOW_THREADS
#define
 
Py_END_ALLOW_THREADS
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/* Interface for threads.
A module that plans to do a blocking system call (or something else
that lasts a long time and doesn't touch Python data) can allow other
threads to run as follows:
...preparations here...
Py_BEGIN_ALLOW_THREADS
...blocking system call here...
Py_END_ALLOW_THREADS
...interpret result here...
The Py_BEGIN_ALLOW_THREADS/Py_END_ALLOW_THREADS pair expands to a
{}-surrounded block.
To leave the block in the middle (e.g., with return), you must insert
a line containing Py_BLOCK_THREADS before the return, e.g.
if (...premature_exit...) {
Py_BLOCK_THREADS
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