Closed
Description
Hardware:
Board: DOIT ESP32 DEVKIT V1
Core Installation version: 1.0.4
IDE name: Platform.io
Flash Frequency: Can't tell (Crystal is 40MHz?)
PSRAM enabled: Can't tell
Upload Speed: 921600
Computer OS: Mac OSX
Description:
After reading the http response line with WiFiClient::readBytesUntil() calling WiFiClient::flush() hangs indefinitely. Doesn't always happen, best guess is it depends on response length. First noticed with 204 No Content response from an influxdb server.
Sketch:
#include <WiFi.h>
#include <WiFiClient.h>
const char ssid[] = "FIXME";
const char pass[] = "FIXME";
void setup()
{
Serial.begin(115200);
WiFiClient client;
WiFi.begin(ssid, pass);
WiFi.waitForConnectResult();
client.connect("httpbin.org", 80);
client.printf("GET /status/200 HTTP/1.0\r\nHost: httpbin.org\r\n\r\n");
auto res = client.readStringUntil('\n');
Serial.println(res);
client.flush();
Serial.println("Done.");
}
void loop()
{
}Debug Messages:
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 2 - STA_START
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 4 - STA_CONNECTED
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.2, MASK: 255.255.255.0, GW: 192.168.1.1
HTTP/1.1 204 NO CONTENT
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3AAC
a class="Box-sc-g0xbh4-0 fsUZub prc-Link-Link-85e08" data-underline="false" data-hover-color="accent.fg" href="https://github.com/orgs/espressif/projects/3" tabindex="0">
Arduino ESP32 Core Project Roadmap
Status
Done