esphome

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T

J. Nick Koston c43015a467 [ota,socket] Use SO_RCVTIMEO for OTA data transfer instead of polling

Replace the non-blocking poll + delay(1) pattern in OTA data transfer
with SO_RCVTIMEO blocking reads. The socket now wakes immediately when
data arrives instead of sleeping 1ms between polls.

Adds SO_RCVTIMEO support to the raw TCP socket implementation (ESP8266,
RP2040) using the existing socket_delay()/socket_wake() infrastructure.
The timeout is stored as a uint8_t in centiseconds, fitting in existing
struct padding with zero RAM cost.

Tested OTA improvements across platforms:
- ESP32-S3: ~15% faster (6.96-7.76s -> 5.87-6.60s)
- LibreTiny RTL: 24% faster (18.84s -> 14.33s)
- LibreTiny BK72xx: 56% faster (55.52s -> 24.38s)
- ESP8266: ~1% faster (compressed OTA, already efficient)

2026-03-09 21:28:08 -10:00

__init__.py

[core] Wake main loop from ISR in enable_loop_soon_any_context() (#14383 )

2026-03-01 18:20:14 -10:00

bsd_sockets_impl.cpp

[socket] Cache lwip_sock pointers and inline ready() chain (#14408 )

2026-03-03 07:03:02 -10:00

bsd_sockets_impl.h

[socket] Cache lwip_sock pointers and inline ready() chain (#14408 )

2026-03-03 07:03:02 -10:00

headers.h

[ota,socket] Use SO_RCVTIMEO for OTA data transfer instead of polling