/* restore the old hook */
lua_sethook(L, Hsig, Hmask, Hcount);
lua_pushstring(L, LUA_SIGNAL);
lua_gettable(L, LUA_REGISTRYINDEX);
/* restore the old hook */
lua_sethook(L, Hsig, Hmask, Hcount);
lua_pushstring(L, LUA_SIGNAL);
lua_gettable(L, LUA_REGISTRYINDEX);