mirror of
https://github.com/pgsty/silo.git
synced 2026-10-26 05:39:56 +00:00
Feng Ruohang
103 lines
3.1 KiB
Go
103 lines
3.1 KiB
Go
// Copyright (c) 2026 Feng Ruohang
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//
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// This file is part of Silo Object Storage.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"strings"
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"testing"
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"time"
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)
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func TestPutObjectGenerationFollowsCommitLock(t *testing.T) {
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z, bucket := consistencyPools(t)
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for _, preserve := range []bool{false, true} {
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t.Run(map[bool]string{false: "generated", true: "preserved"}[preserve], func(t *testing.T) {
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const object = "ordered-generation"
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set := z.serverPools[0].getHashedSet(object)
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lock := set.NewNSLock(bucket, object)
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lc, err := lock.GetLock(t.Context(), globalOperationTimeout)
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if err != nil {
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t.Fatal(err)
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}
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locked := true
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defer func() {
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if locked {
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lock.Unlock(lc)
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}
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}()
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opts := ObjectOptions{}
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if preserve {
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opts.MTime = time.Unix(1234567890, 0)
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}
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reader := mustGetPutObjReader(t, strings.NewReader("payload"), 7, "", "")
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type result struct {
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info ObjectInfo
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err error
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}
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done := make(chan result, 1)
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go func() {
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info, err := set.PutObject(t.Context(), bucket, object, reader, opts)
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done <- result{info, err}
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}()
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// Wait for the real writer to queue behind the held namespace
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// lock. No elapsed delay is used to infer its progress.
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deadline := time.Now().Add(5 * time.Second)
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for {
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set.nsMutex.lockMapMutex.Lock()
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entry := set.nsMutex.lockMap[pathJoin(bucket, object)]
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waiting := entry != nil && entry.ref == 2
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set.nsMutex.lockMapMutex.Unlock()
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if waiting {
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break
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}
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select {
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case got := <-done:
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t.Fatalf("PUT bypassed the held commit lock: %v", got.err)
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default:
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}
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if time.Now().After(deadline) {
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t.Fatal("PUT did not queue for the commit lock")
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}
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time.Sleep(time.Millisecond)
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}
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beforeUnlock := UTCNow()
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lock.Unlock(lc)
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locked = false
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got := <-done
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if got.err != nil {
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t.Fatal(got.err)
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}
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if preserve {
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if !got.info.ModTime.Equal(opts.MTime) {
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t.Fatalf("explicit modification time changed: %s", got.info.ModTime)
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}
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} else if got.info.ModTime.Before(beforeUnlock) {
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t.Fatalf("generation %s predates commit lock release %s", got.info.ModTime, beforeUnlock)
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}
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for i, disk := range set.getDisks() {
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fi, err := disk.ReadVersion(t.Context(), "", bucket, object, nullVersionID, ReadOptions{})
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if err != nil || !fi.ModTime.Equal(got.info.ModTime) {
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t.Errorf("disk %d stored a different generation: %s, %v", i, fi.ModTime, err)
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}
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}
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})
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}
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}
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