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Ensure that errors in Python callbacks that are called from multithreaded C++ code propogate the correct Python error back to the parent Python callback site, and that no callbacks are called from other threads if an error has already ocurred. - protects each recipe callback with a mutex, stores python exception, catches and throws python exception if occured - methods calling recipe (in simulation and partition_load_balance) are protected as well by try catch, resets and rethrows python exception (if occured) or else throws C++ exception fixes #792
f30c4204
error.cpp 337 B
#include <pybind11/pybind11.h>
#include "error.hpp"
namespace pyarb {
std::exception_ptr py_exception;
std::mutex py_callback_mutex;
void py_reset_and_throw() {
if (py_exception) {
std::exception_ptr copy = py_exception;
py_exception = nullptr;
std::rethrow_exception(copy);
}
}
} // namespace pyarb