Async WebSockets Client

[Sparkxxx]

Hello Luc and congratulations for greatest creation i've seen so far in the esp config world. I know it's kinda off topic but I'm asking for your advice although others could benefit from your answer. I have made some tests with both esp3d versions (including async webserver) trying to integrate websockets client library Links2004/arduinoWebSockets. With normal websockets it works but the transmit intervals are not even and it's throttling so I thought to try the async client and in both esp3d versions I get the ESP to crash with the exact same exception:

Exception (28): epc1=0x4021214e epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

ctx: cont sp: 3fff2150 end: 3fff2450 offset: 01a0

stack>>> 0x4020d5ec: WebSocketsClient::clientIsConnected(WSclient_t) at ?? line ? 0x4020e45d: WebSocketsClient::handleHeader(WSclient_t, String) at ?? line ? 0x402135ec: std::_Function_handler (WebSocketsClient, WSclient_t, String)> >::_M_invoke(std::_Any_data const&, bool, void) at ?? line ? 0x4021250f: std::function ::operator()(bool, void) const at ?? line ? 0x40212544: AsyncTCPbuffer::stop() at ?? line ? 0x4020e85e: WebSockets::clientDisconnect(WSclient_t, unsigned short, char, unsigned int) at ?? line ? 0x4020d57d: WebSocketsClient::clientDisconnect(WSclient_t) at ?? line ? 0x40202d74: yield at ?? line ? 0x4020e8a4: WebSockets::clientDisconnect(WSclient_t, unsigned short, char*, unsigned int) at ?? line ? 0x4020204c: String::~String() at ?? line ? 0x4020156a: HardwareSerial::available() at ?? line ? 0x40214119: BRIDGE::processFromSerial2TCP() at ?? line ? 0x4020d9ec: WebSocketsClient::disconnect() at ?? line ? 0x40213d65: loop at ?? line ? 0x40202d48: loop_wrapper() at core_esp8266_main.cpp line ? 0x40204ea0: cont_norm at cont.o line ? <<<stack<<<

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16 tail 8 chksum 0x2d csum 0x2d v02f0c112 ~ld

I think that the problem is an incompatibility of some sort between the libraries but I don't have the knowledge to debug it. Hope you can help, Thanks

[luc-github]

well can be a lot but if you check here : https://github.com/esp8266/Arduino/blob/master/doc/exception_causes.md

exception 28 is a memory access violation - I would suggest to add debug flag and see what command generate the exception, but looking at the stack decoding, I see 0x40202d74: yield at ?? line ? and async method must not use yield per readme (https://github.com/luc-github/ESPAsyncWebServer#important-things-to-remember) : You can not use yield or delay or any function that uses them inside the callbacks

I hope it help

[luc-github]

if no update I close issue

[github-actions[bot]]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.