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https://github.com/go-gitea/gitea.git
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7069369e03
1. Add a OpenTelemetry-like shim-layer to collect traces 2. Add a simple builtin trace collector and exporter, end users could download the diagnosis report to get the traces. This PR's design is quite lightweight, no hard-dependency, and it is easy to improve or remove. We can try it on gitea.com first to see whether it works well, and fine tune the details. --------- Co-authored-by: silverwind <me@silverwind.io>
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package routing
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import (
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"context"
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"net/http"
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"code.gitea.io/gitea/modules/gtprof"
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"code.gitea.io/gitea/modules/reqctx"
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)
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type contextKeyType struct{}
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var contextKey contextKeyType
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// RecordFuncInfo records a func info into context
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func RecordFuncInfo(ctx context.Context, funcInfo *FuncInfo) (end func()) {
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end = func() {}
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if reqCtx := reqctx.FromContext(ctx); reqCtx != nil {
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var traceSpan *gtprof.TraceSpan
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traceSpan, end = gtprof.GetTracer().StartInContext(reqCtx, "http.func")
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traceSpan.SetAttributeString("func", funcInfo.shortName)
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}
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if record, ok := ctx.Value(contextKey).(*requestRecord); ok {
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record.lock.Lock()
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record.funcInfo = funcInfo
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record.lock.Unlock()
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}
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return end
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}
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// MarkLongPolling marks the request is a long-polling request, and the logger may output different message for it
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func MarkLongPolling(resp http.ResponseWriter, req *http.Request) {
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record, ok := req.Context().Value(contextKey).(*requestRecord)
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if !ok {
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return
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}
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record.lock.Lock()
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record.isLongPolling = true
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record.lock.Unlock()
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}
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// UpdatePanicError updates a context's error info, a panic may be recovered by other middlewares, but we still need to know that.
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func UpdatePanicError(ctx context.Context, err any) {
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record, ok := ctx.Value(contextKey).(*requestRecord)
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if !ok {
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return
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}
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record.lock.Lock()
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record.panicError = err
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record.lock.Unlock()
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}
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