After clamp_and_log_if_invalid() clamps the value in-place, the
LightColorValues setter's clamp() is guaranteed to be a no-op. For 5
of 9 fields the compiler was inlining the setter's clamp, generating
~18 bytes of redundant float compare + conditional move per field.
Use friend access to assign directly to LightColorValues fields,
bypassing the setter. Also apply the same optimization to
normalize_color() where division by max_value guarantees results
stay in [0,1].
After clamp_and_log_if_invalid() clamps the value in-place, the
LightColorValues setter's clamp() is guaranteed to be a no-op. For 5
of 9 fields the compiler was inlining the setter's clamp, generating
~18 bytes of redundant float compare + conditional move per field.
Use friend access to assign directly to LightColorValues fields,
bypassing the setter. Saves ~204 bytes of flash on ESP32.
Previously ready() always returned true on ESP8266/RP2040, causing
every socket to be checked on every loop iteration even when no data
was available.
Override ready() in LWIPRawImpl to check rx_buf_/rx_closed_/pcb_ state,
and in LWIPRawListenImpl to check accepted_socket_count_. This uses
existing fields so no extra memory is needed per socket.
Keep ready() virtual only on the non-select path (ESP8266/RP2040) so
the select()-based path (ESP32) retains the non-virtual optimization
from the previous commit.
On ESP8266 and RP2040, MDNS.update() was called every loop iteration
(~120 Hz) but only manages timer-driven probe/announce state machines.
Incoming mDNS packets are handled independently via the lwIP onRx UDP
callback and are unaffected by update() frequency.
Replace the loop() override with set_interval() at 50ms. This removes
the component from the loop list entirely via has_overridden_loop(),
eliminating all per-iteration overhead including virtual dispatch.
The 50ms interval provides sufficient resolution for all internal
timers (shortest is 250ms probe interval per RFC 6762 Section 8.1).
On ESP8266 and RP2040, MDNS.update() is called every loop iteration
(~120 Hz) but only manages timer-driven probe/announce state machines.
Incoming mDNS packets are handled independently via the lwIP onRx UDP
callback and are unaffected by update() frequency.
The shortest internal timer is the 250ms probe interval (RFC 6762).
Throttling to 50ms provides sufficient resolution while reducing CPU
overhead by ~84% (from ~360ms to ~60ms per 60s measurement period).
Tomasz Duda