db.Mux.Unlock()

	// prepare completed
	defer close(cacheStmt.prepared)

	// Reason why cannot lock conn.PrepareContext
	// suppose the maxopen is 1, g1 is creating record and g2 is querying record.
	// 1. g1 begin tx, g1 is requeue because of waiting for the system call, now `db.ConnPool` db.numOpen == 1.
	// 2. g2 select lock `conn.PrepareContext(ctx, query)`, now db.numOpen == db.maxOpen , wait for release.

	CreatedAt         time.Time // only for site replication
	NoLock            bool      // does not lock the make bucket call if set to 'true'
}

// DeleteBucketOptions provides options for DeleteBucket calls.
type DeleteBucketOptions struct {
	NoLock     bool             // does not lock the delete bucket call if set to 'true'
	NoRecreate bool             // do not recreate bucket on delete failures

This directory is intended to contain Hazelcast [1] JARs for Maven Resolver Named Locks using Hazelcast.

See here [2] on how to add necessary JARs.

[1] https://github.com/hazelcast/hazelcast

        if( pipe.pipeIn != null ) {
            TransactNamedPipeInputStream in = (TransactNamedPipeInputStream)pipe.pipeIn;
            synchronized( in.lock ) {
                in.receive( buffer, bufferIndex, len );
                in.lock.notify();
            }
        }
        return len;
    }
    public String toString() {
        return new String( "TransCallNamedPipeResponse[" + super.toString() + "]" );

public class TestLogHandler extends Handler {
  private final Object lock = new Object();

  /** We will keep a private list of all logged records */
  @GuardedBy("lock")
  private final List<LogRecord> list = new ArrayList<>();

  /** Adds the most recently logged record to our list. */
  @Override
  public void publish(@Nullable LogRecord record) {
    synchronized (lock) {
      if (record != null) {
        list.add(record);
      }

	}
	ps.Lock()
	defer ps.Unlock()

	sub := &Sub[T]{ch: subCh, types: Mask(mask.Mask()), filter: filter}
	ps.subs = append(ps.subs, sub)

	// We hold a lock, so we are safe to update
	combined := Mask(atomic.LoadUint64(&ps.types))
	combined.Merge(Mask(mask.Mask()))
	atomic.StoreUint64(&ps.types, uint64(combined))

	go func() {
		<-doneCh

		ps.Lock()
		defer ps.Unlock()

   * needed.
   *
   * A single spinlock ("busy") is used for initializing and
   * resizing the table, as well as populating slots with new Cells.
   * There is no need for a blocking lock; when the lock is not
   * available, threads try other slots (or the base).  During these
   * retries, there is increased contention and reduced locality,
   * which is still better than alternatives.
   *

	return false
}

// Close closes the underlying socket file descriptor.
func (restClient *ReconnectRESTClient) Close() error {
	return nil
}

var (
	errLockConflict = errors.New("lock conflict")
	errLockNotFound = errors.New("lock not found")
)

func toLockError(err error) error {
	if err == nil {
		return nil
	}

	switch err.Error() {
	case errLockConflict.Error():
		return errLockConflict

		if peer.DeploymentID == globalDeploymentID() {
			continue
		}
		rs, err := loadSiteResyncMetadata(ctx, objAPI, peer.DeploymentID)
		if err != nil {
			return err
		}
		sm.Lock()
		if _, ok := sm.peerResyncMap[peer.DeploymentID]; !ok {
			sm.peerResyncMap[peer.DeploymentID] = resyncState{resyncID: rs.ResyncID, LastSaved: time.Time{}}
			sm.resyncStatus[rs.ResyncID] = rs
		}
		sm.Unlock()
	}

func (sys *BucketTargetSys) markOffline(ep *url.URL) {
	sys.hMutex.Lock()
	defer sys.hMutex.Unlock()
	if h, ok := sys.hc[ep.Host]; ok {
		h.Online = false
		sys.hc[ep.Host] = h
	}
}

func (sys *BucketTargetSys) initHC(ep *url.URL) {
	sys.hMutex.Lock()
	sys.hc[ep.Host] = epHealth{
		Endpoint: ep.Host,
		Scheme:   ep.Scheme,
		Online:   true,
	}