Function handleOOM

BeefRT/JEMalloc/src/jemalloc_cpp.cpp:56–92

#endif

JEMALLOC_NOINLINE
static void *
handleOOM(std::size_t size, bool nothrow) {
	if (opt_experimental_infallible_new) {
		safety_check_fail("<jemalloc>: Allocation failed and "
		    "opt.experimental_infallible_new is true. Aborting.\n");
		return nullptr;
	}

	void *ptr = nullptr;

	while (ptr == nullptr) {
		std::new_handler handler;
		// GCC-4.8 and clang 4.0 do not have std::get_new_handler.
		{
			static std::mutex mtx;
			std::lock_guard<std::mutex> lock(mtx);

			handler = std::set_new_handler(nullptr);
			std::set_new_handler(handler);
		}
		if (handler == nullptr)
			break;

		try {
			handler();
		} catch (const std::bad_alloc &) {
			break;
		}

		ptr = je_malloc(size);
	}

	if (ptr == nullptr && !nothrow)
		std::__throw_bad_alloc();
	return ptr;
}

template <bool IsNoExcept>
JEMALLOC_NOINLINE