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feat: log timings for slow work, socket clients and boot crashes

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Add Timing.h and use it to log what holds up the main loop, how long a
new socket client's setup takes, slow socket sends, and how long each
web request took and from which client. Socket connects and disconnects
are logged with how long the client stayed, and late pings as warnings.
Routine sends and pings are not logged, as each line costs several ms
on a 115200 baud console.

Report a stored crash once with the crashed and running build IDs, then
erase it, since it was reported on every boot and its backtrace only
decodes against the build that crashed. Mount the file system once.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
cjkas 2026-10-11 20:35:43 +02:00
parent 05c3d309a6
commit dd47c04905
6 changed files with 157 additions and 18 deletions
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28
src/Web.cpp
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@ -14,6 +14,7 @@
#include "MQTT.h"
#include "GitOTA.h"
#include "ESPNetwork.h"
#include "Timing.h"
#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <AsyncJson.h>
@ -1245,8 +1246,35 @@ void Web::handleNotFound(AsyncWebServerRequest *request) {
request->send(404, _encoding_text, g_async_content);
}
// Logs how long a request takes to handle and, once the connection closes, how
// long the whole exchange took. The total includes chunked bodies like
// /controller that are built while they are sent, after the handler returns.
// The server name must be a literal as the disconnect handler keeps it.
static void timeRequest(AsyncWebServerRequest *request, ArMiddlewareNext next, const char *server) {
ElapsedTimer timer;
// Taken now as the client may already be gone when the disconnect runs.
IPAddress ip = request->client() ? request->client()->remoteIP() : IPAddress();
// Uploads set their own disconnect handler while the body arrives, before
// this runs, and replacing it would stop the reboot after an update.
if(!request->multipart()) {
request->onDisconnect([request, timer, server, ip]() {
char what[112];
snprintf(what, sizeof(what), "%s %s %s from %u.%u.%u.%u total", server, request->methodToString(), request->url().c_str(),
ip[0], ip[1], ip[2], ip[3]);
logElapsed(TAG, what, timer.us());
});
}
next();
char what[112];
snprintf(what, sizeof(what), "%s %s %s from %u.%u.%u.%u handler", server, request->methodToString(), request->url().c_str(),
ip[0], ip[1], ip[2], ip[3]);
logElapsed(TAG, what, timer.us());
}
void Web::begin() {
ESP_LOGI(TAG, "Creating Web MicroServices...");
asyncApiServer.addMiddleware([](AsyncWebServerRequest *r, ArMiddlewareNext next) { timeRequest(r, next, "api"); });
asyncServer.addMiddleware([](AsyncWebServerRequest *r, ArMiddlewareNext next) { timeRequest(r, next, "web"); });
// Async API Server (port 8081)
DefaultHeaders::Instance().addHeader("Access-Control-Allow-Origin", "*");
DefaultHeaders::Instance().addHeader("Access-Control-Allow-Methods", "PUT,POST,GET,OPTIONS");