mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-25 19:15:34 +00:00
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
891 B
Go
46 lines
891 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package tstest
|
|
|
|
import (
|
|
"bytes"
|
|
"runtime"
|
|
"runtime/pprof"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/google/go-cmp/cmp"
|
|
)
|
|
|
|
func ResourceCheck(tb testing.TB) {
|
|
tb.Helper()
|
|
startN, startStacks := goroutines()
|
|
tb.Cleanup(func() {
|
|
if tb.Failed() {
|
|
// Something else went wrong.
|
|
return
|
|
}
|
|
// Goroutines might be still exiting.
|
|
for i := 0; i < 100; i++ {
|
|
if runtime.NumGoroutine() <= startN {
|
|
return
|
|
}
|
|
time.Sleep(5 * time.Millisecond)
|
|
}
|
|
endN, endStacks := goroutines()
|
|
if endN <= startN {
|
|
return
|
|
}
|
|
tb.Logf("goroutine diff:\n%v\n", cmp.Diff(startStacks, endStacks))
|
|
tb.Fatalf("goroutine count: expected %d, got %d\n", startN, endN)
|
|
})
|
|
}
|
|
|
|
func goroutines() (int, []byte) {
|
|
p := pprof.Lookup("goroutine")
|
|
b := new(bytes.Buffer)
|
|
p.WriteTo(b, 1)
|
|
return p.Count(), b.Bytes()
|
|
}
|