func (list *TargetList) decCurrentSendCalls(id TargetID) {
	list.statLock.Lock()
	defer list.statLock.Unlock()

	stats, ok := list.targetStats[id]
	if !ok {
		// should not happen
		return
	}

	stats.currentSendCalls--
	list.targetStats[id] = stats
}

func (list *TargetList) incFailedEvents(id TargetID) {
	list.statLock.Lock()
	defer list.statLock.Unlock()

	stats, ok := list.targetStats[id]

}

func (t *tierMetrics) logSuccess(tier string) {
	t.Lock()
	defer t.Unlock()

	stat := t.requestsCount[tier]
	stat.success++
	t.requestsCount[tier] = stat
}

func (t *tierMetrics) logFailure(tier string) {
	t.Lock()
	defer t.Unlock()

	stat := t.requestsCount[tier]
	stat.failure++
	t.requestsCount[tier] = stat
}

            - .github/workflows/test.yml
            - docs_src/**
            - fastapi/**
            - scripts/**
            - tests/**
            - .python-version
            - pyproject.toml
            - uv.lock

  test:
    needs:
      - changes
    if: needs.changes.outputs.src == 'true' || github.ref == 'refs/heads/master'
    strategy:
      matrix:
        os: [ windows-latest, macos-latest ]

func (pr *syncReadCloser) Read(p []byte) (n int, err error) {
	// This ensures that Close will block until Read has completed.
	// This allows another goroutine to close the reader.
	pr.mu.Lock()
	defer pr.mu.Unlock()
	if pr.rc == nil {
		return 0, io.EOF
	}
	return pr.rc.Read(p)
}

func (pr *syncReadCloser) Close() error {
	pr.mu.Lock()
	defer pr.mu.Unlock()
	if pr.rc != nil {
		err := pr.rc.Close()
		pr.rc = nil

		case <-ctx.Done():
			return
		case <-r.wTimer.C:
			r.wlock.Lock()
			r.workers.update()
			r.wlock.Unlock()
		}
	}
}

func (r *ReplicationStats) collectQueueMetrics(ctx context.Context) {
	if r == nil {
		return
	}

	for {
		select {
		case <-ctx.Done():
			return
		case <-r.qTimer.C:
			r.qCache.update()
		}
	}
}

func (h *metrics) setConnSuccess(reqStartTime time.Time) {
	h.Lock()
	defer h.Unlock()
	h.LastCheckSuccess = reqStartTime
}

func (h *metrics) setConnFailure(reqStartTime time.Time) {
	h.Lock()
	defer h.Unlock()
	h.LastCheckFailure = reqStartTime
}

func (h *metrics) updateLastFullMinute(currReqMinute time.Time) {
	// Assumes the caller has h.Lock()'ed
	h.lastFullMinute = h.currentMinute

func (r *lockedRandSource) Int63() (n int64) {
	r.lk.Lock()
	n = r.src.Int63()
	r.lk.Unlock()
	return n
}

// Seed uses the provided seed value to initialize the generator to a
// deterministic state.
func (r *lockedRandSource) Seed(seed int64) {
	r.lk.Lock()
	r.src.Seed(seed)
	r.lk.Unlock()

func (srv *Server) Shutdown() error {
	srv.listenerMutex.Lock()
	if srv.listener == nil {
		srv.listenerMutex.Unlock()
		return http.ErrServerClosed
	}
	srv.listenerMutex.Unlock()

	if atomic.AddUint32(&srv.inShutdown, 1) > 1 {
		// shutdown in progress
		return http.ErrServerClosed
	}

	// Close underneath HTTP listener.
	srv.listenerMutex.Lock()
	err := srv.listener.Close()
	srv.listenerMutex.Unlock()

     * be RARELY used (if used at all). It may help in special cases like "aligning" a reactor build subprojects
     * build numbers to perform a "snapshot lock down". Value given here must be <code>maxRemoteBuildNumber + 1</code>
     * or greater, otherwise build will fail. How the number to be obtained is left to user (ie by inspecting
     * snapshot repository metadata or alike).

// if it is not successful yet.
func (l *Init) Do(f func() error) error {
	if atomic.LoadUint32(&l.done) == 0 {
		return l.do(f)
	}
	return nil
}

func (l *Init) do(f func() error) error {
	l.m.Lock()
	defer l.m.Unlock()
	if atomic.LoadUint32(&l.done) == 0 {
		if err := f(); err != nil {
			return err
		}
		// Mark as done only when f() is successful
		atomic.StoreUint32(&l.done, 1)
	}
	return nil
}