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9a588ce12b |
@@ -1718,3 +1718,12 @@ issue #3 未关闭,`feat/fix-3-downlink-deadlock` 未合入 `main`。下面是
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- 原因:原先 12 项备注写着未穷尽仍标通过,交付说明写成「通过 23」。
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- 备选方案:为每个未测子项补验收用例(本波不做,避免为变绿放松断言)。
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- 影响:汇总改为通过 19、部分通过 4(F03/F08/F21/F22)、失败 0。F19 仍引用仓库内 SDK 清单、本波不重跑。
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### 复审修复 R3-04
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- 日期:2026-09-30
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- 原条款:Gitea #68;`dispatchSend` 在 `PublishUp` 失败且未停止重连时清 inflight 后静默 return,`Send` 永久挂起。
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- 实际做法:失败且未 `stopReconnect` 时保留 id/body/send_at_ms,经 `regenerateSendLocked` 换新 rid,清本次 inflight 并 `drainSendQueue` 继续泵;已停止重连时仍 `finishSend` 返回错误。
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- 原因:条目已不在途,重连时的 `requeueInflightLocked` 不会捡回,调用方一直等 `result`。
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- 备选方案:失败即 `finishSend` 报错(否决,与断线/限速重交语义不一致);只换 rid 不唤醒队列(否决,等同 JS #69)。
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- 影响:仅 `sdk/go`;假传输可模拟 send 发布失败一次。
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@@ -156,6 +156,66 @@ func TestFrameTooLargeLocal(t *testing.T) {
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}
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}
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func TestPublishUpFailRetriesWithNewRID(t *testing.T) {
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fake := NewFakeTransport()
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fake.FailSendPublishN(1)
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c := connectFake(t, fake)
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defer c.Close()
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at := time.UnixMilli(1_700_000_000_000)
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fixedID := "msg-publish-retry"
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done := make(chan struct{})
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var firstRID, secondRID string
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go func() {
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defer close(done)
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deadline := time.Now().Add(3 * time.Second)
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for time.Now().Before(deadline) {
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sends := fake.FindUp("send")
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if len(sends) < 2 {
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time.Sleep(5 * time.Millisecond)
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continue
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}
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first, second := sends[0], sends[1]
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firstRID, _ = first["rid"].(string)
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secondRID, _ = second["rid"].(string)
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if first["id"] != fixedID || second["id"] != fixedID {
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t.Errorf("id changed: %v -> %v", first["id"], second["id"])
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}
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if first["send_at_ms"] != second["send_at_ms"] {
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t.Errorf("send_at_ms changed: %v -> %v", first["send_at_ms"], second["send_at_ms"])
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}
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body1, _ := json.Marshal(first["body"])
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body2, _ := json.Marshal(second["body"])
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if string(body1) != string(body2) {
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t.Errorf("body changed: %s -> %s", body1, body2)
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}
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if firstRID == "" || firstRID == secondRID {
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t.Errorf("rid not regenerated: %q -> %q", firstRID, secondRID)
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}
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fake.ReplyOK(secondRID, map[string]any{
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"id": fixedID, "send_at_ms": second["send_at_ms"], "state": "scheduled",
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})
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return
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}
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t.Error("timed out waiting for send retry")
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}()
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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res, err := c.Send(ctx, Target{Kind: "endpoint", ID: "b"}, Body{Enc: "utf8", Data: "hi"}, SendOptions{ID: fixedID, SendAt: &at})
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<-done
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if err != nil {
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t.Fatalf("Send hung or failed: %v", err)
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}
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if res.ID != fixedID {
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t.Fatalf("result id=%q want %q", res.ID, fixedID)
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}
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if firstRID == "" || secondRID == "" || firstRID == secondRID {
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t.Fatalf("rids=%q/%q", firstRID, secondRID)
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}
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}
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func TestResendKeepsIDAndSendAt(t *testing.T) {
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fake := NewFakeTransport()
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c := connectFake(t, fake)
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@@ -3,6 +3,7 @@ package nixmsg
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import (
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"context"
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"encoding/json"
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"errors"
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"sync"
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"sync/atomic"
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"time"
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@@ -29,6 +30,8 @@ type FakeTransport struct {
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MaxFrameBytes int
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HelloDelay time.Duration
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ReceiveMaximumSet bool
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// failSendLeft 接下来若干次 type=send 的 PublishUp 返回错误(仍记入 up)。
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failSendLeft int
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}
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type fakeConnect struct {
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@@ -65,6 +68,13 @@ func (f *FakeTransport) Start(ctx context.Context, cfg transportConfig) error {
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return nil
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}
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// FailSendPublishN 让接下来 n 次 send 帧 PublishUp 失败(hello 等其它类型不受影响)。
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func (f *FakeTransport) FailSendPublishN(n int) {
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f.mu.Lock()
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f.failSendLeft = n
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f.mu.Unlock()
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}
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func (f *FakeTransport) PublishUp(payload []byte) error {
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f.mu.Lock()
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cp := append([]byte(nil), payload...)
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@@ -80,6 +90,17 @@ func (f *FakeTransport) PublishUp(payload []byte) error {
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if auto && head.Type == "hello" && head.RID != "" {
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f.replyHello(head.RID)
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}
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if head.Type == "send" {
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f.mu.Lock()
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fail := f.failSendLeft > 0
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if fail {
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f.failSendLeft--
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}
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f.mu.Unlock()
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if fail {
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return errors.New("publish failed")
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}
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}
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return nil
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}
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+7
-2
@@ -202,7 +202,10 @@ func (c *Client) dispatchSend(tr transport, item *sendItem, rid string, payload
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if err := tr.PublishUp(payload); err != nil {
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c.mu.Lock()
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delete(c.pending, rid)
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if item.epoch == epoch && item.inflight {
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if item.epoch != epoch || !item.inflight {
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c.mu.Unlock()
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return
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}
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item.inflight = false
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if c.inflight > 0 {
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c.inflight--
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@@ -213,8 +216,10 @@ func (c *Client) dispatchSend(tr transport, item *sendItem, rid string, payload
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c.finishSend(item, SendResult{}, errStop)
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return
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}
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}
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// 保留 id/body/send_at_ms,换新 rid 后继续泵,避免 Send 永久挂起。
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c.regenerateSendLocked(item)
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c.mu.Unlock()
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c.drainSendQueue()
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return
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}
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