ESP8266 NodeMCU src:listen Running Out of Heap Memory

Asked Aug 24 '17 at 08:22

Active Aug 26 '17 at 20:09

Viewed 387 times

Can anybody tell me why my Lua code is running out of memory. It successfully sets up the wifi connection. However, it runs out of heap memory before I connect the first client.

This is why this is imho NOT A DUP of ESP8266 NodeMCU Running Out of Heap Memory

wifi.setmode(wifi.STATION)
station_cfg={}
station_cfg.ssid="WLAN-xxxx"
station_cfg.pwd="xxxxxxx"
wifi.sta.config(station_cfg)
wifi.sta.connect()

print(wifi.sta.getip())
RELAIS = 5
LED=0

gpio.mode(RELAIS, gpio.OUTPUT)
srv=net.createServer(net.TCP)
print(node.heap())
srv:listen(80,function(conn)
    conn:on("receive", function(client,request)
        print(node.heap())
--[[   ... some more stuff not relevant for the bug ...

   ]]
        client:close();
        collectgarbage();
    end)
end)
print(node.heap())

The output for the first heap call is 38984. There is no output for the second heap.

edited Aug 26 '17 at 20:09

asked Aug 24 '17 at 08:22

CAFEBABE

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Why do you think it's running out of memory? Just because your on-receive callback never fires? – Marcel Stör Aug 25 '17 at 12:46
Maybe you should remove the commented code to avoid confusion here. – Marcel Stör Aug 25 '17 at 12:47
The Esplorer tells me that the there is no heap memory left – CAFEBABE Aug 26 '17 at 20:10
What NodeMCU version does this run on? This code looks odd anyway because it doesn't wait until WiFi setup is fully completed (remember, `wifi.sta.connect()` is non-blocking). – Marcel Stör Aug 26 '17 at 20:49

ESP8266 NodeMCU src:listen Running Out of Heap Memory

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