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71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
46 lines
942 B
Go
46 lines
942 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build !js
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// Package logheap logs a heap pprof profile.
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package logheap
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import (
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"bytes"
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"context"
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"log"
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"net/http"
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"runtime"
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"runtime/pprof"
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"time"
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)
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// LogHeap uploads a JSON logtail record with the base64 heap pprof by means
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// of an HTTP POST request to the endpoint referred to in postURL.
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func LogHeap(postURL string) {
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if postURL == "" {
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return
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}
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runtime.GC()
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buf := new(bytes.Buffer)
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if err := pprof.WriteHeapProfile(buf); err != nil {
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log.Printf("LogHeap: %v", err)
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return
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}
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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req, err := http.NewRequestWithContext(ctx, "POST", postURL, buf)
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if err != nil {
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log.Printf("LogHeap: %v", err)
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return
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}
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res, err := http.DefaultClient.Do(req)
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if err != nil {
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log.Printf("LogHeap: %v", err)
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return
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}
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defer res.Body.Close()
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}
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