Method fork

sources/covscript.cpp:156–169

	}

	std::unique_ptr<process_context> process_context::fork()
	{
		std::unique_ptr<process_context> new_process(new process_context(current_process->child_stack_size()));
		new_process->output_precision = current_process->output_precision;
		new_process->import_path = current_process->import_path;
		process_context *curr = current_process;
		new_process->on_process_exit.add_listener([curr](void *data) -> bool
		{ return curr->on_process_exit.touch(data); });
		new_process->on_process_sigint.add_listener([curr](void *data) -> bool
		{ return curr->on_process_sigint.touch(data); });
		new_process->std_eh_callback = current_process->std_eh_callback;
		new_process->cs_eh_callback = current_process->cs_eh_callback;
		return std::move(new_process);
	}

	process_context this_process;
	process_context *current_process = &this_process;