+ string ret = lua_tostring(L, -1);
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return ret;
+}
+
+int Theme::get_channel_signal(unsigned channel)
+{
+ unique_lock<mutex> lock(m);
+ lua_getglobal(L, "channel_signal");
+ lua_pushnumber(L, channel);
+ if (lua_pcall(L, 1, 1, 0) != 0) {
+ fprintf(stderr, "error running function `channel_signal': %s\n", lua_tostring(L, -1));
+ exit(1);
+ }
+
+ int ret = luaL_checknumber(L, 1);
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return ret;
+}
+
+std::string Theme::get_channel_color(unsigned channel)
+{
+ unique_lock<mutex> lock(m);
+ lua_getglobal(L, "channel_color");
+ lua_pushnumber(L, channel);
+ if (lua_pcall(L, 1, 1, 0) != 0) {
+ fprintf(stderr, "error running function `channel_color': %s\n", lua_tostring(L, -1));
+ exit(1);
+ }
+
+ std::string ret = checkstdstring(L, -1);