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def profile_func(frame, event, arg):
if event == "call" or event == "return" or event == "c_call" or event == "c_return":
data = (event, time.time())
server.sendall(json.dumps(data))
sys.setprofile(profile_func)
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// This is installed as the setprofile() handler for new threads by
// threading.setprofile(). On its first execution, it initializes tracing for
// the thread, including creating the thread state, before replacing itself with
// the normal Fprofile_FunctionTrace handler.
static PyObject* Fprofile_ThreadFunctionTrace(..args..) {
Fprofile_CreateThreadState();
// Replace our setprofile() handler with the real one, then manually call
// it to ensure this call is recorded.
PyEval_SetProfile(Fprofile_FunctionTrace);
Fprofile_FunctionTrace(..args..);
Py_RETURN_NONE;
}
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# Generate a temp directory to store our wrappers in. We'll temporarily
# add this directory to our path.
tempdir = tempfile.mkdtemp(prefix="py-functiontrace")
os.environ["PATH"] = tempdir + os.pathsep + os.environ["PATH"]
# Generate wrappers for the various Python versions we support to ensure
# they're included in our PATH.
wrap_pythons = ["python", "python3", "python3.6", "python3.7", "python3.8"]
for python in wrap_pythons:
with open(os.path.join(tempdir, python), "w") as f:
f.write(PYTHON_TEMPLATE.format(python=python))
os.chmod(f.name, 0o755)
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