continue
		}

		// There is at least one SSE-S3 single-part object.
		// For all SSE-S3 single-part objects we have to
		// fetch their decryption keys. We do this using
		// a Bulk-Decryption API call, if available.
		keys, err := crypto.S3.UnsealObjectKeys(ctx, k, metadata, buckets, names)
		if err != nil {
			return err
		}

		// Now, we have to decrypt the ETags of SSE-S3 single-part

		case <-mTimer.C:
			saveMRFToDisk()
			mTimer.Reset(mrfSaveInterval)
		case <-p.ctx.Done():
			p.mrfStopCh <- struct{}{}
			xioutil.SafeClose(p.mrfSaveCh)
			// We try to save if possible, but we don't care beyond that.
			saveMRFToDisk()
			return
		case e, ok := <-p.mrfSaveCh:
			if !ok {
				return
			}
			entries[e.versionID] = e

			if len(entries) >= mrfMaxEntries {

    - `scheduler_async_api_call_execution_total`: tracks executed API calls by call type and result (success/error)
    - `scheduler_async_api_call_duration_seconds`: histogram of API call execution duration by call type and result

		for _, oi := range objInfos {
			actualSz, err := oi.GetActualSize()
			if err != nil {
				scannerLogIf(ctx, err)
				continue
			}
			size := healActions(oi, actualSz)
			if fn != nil { // call accountingfn
				fn(oi, size, actualSz, sizeS)
			}
			cumulativeSize += size
		}
		// end ILM check timer
		done(len(objInfos))
		i.alertExcessiveVersions(len(objInfos), cumulativeSize)
		return

	// otherwise return failure. Cleanup successful renames.
	return evalDisks(disks, errs), err
}

// PutObjectPart - reads incoming stream and internally erasure codes
// them. This call is similar to single put operation but it is part
// of the multipart transaction.
//
// Implements S3 compatible Upload Part API.

		}
		if len(key) == 0 {
			return fmt.Errorf("xlMetaInlineData: key %d is length 0", i)
		}
		// Read data...
		val, buf, err = msgp.ReadBytesZC(buf)
		if err != nil {
			return err
		}
		// Call back.
		fn(string(key), val)
	}
	return nil
}

const (
	xlHeaderVersion = 3
	xlMetaVersion   = 3
)

type xlHeaders struct {
	versions           int
	headerVer, metaVer uint
}

// Read is never called with an empty buffer.
type testNonEmptyReader struct{ io.Reader }

func (r testNonEmptyReader) Read(b []byte) (int, error) {
	if len(b) == 0 {
		return 0, errors.New("unexpected empty Read call")
	}
	return r.Reader.Read(b)
}

func TestFileReader(t *testing.T) {
	type (
		testRead struct { // Read(cnt) == (wantStr, wantErr)
			cnt     int
			wantStr string
			wantErr error

			yes, err := target.IsActive()
			if err == nil && !yes {
				err = ErrTargetsOffline
			}
			if err != nil {
				return fmt.Errorf("error (%s): %w", target.ID(), err)
			}
		} else {
			// Just for call init.
			// Ignore target is online or offline
			_, _ = target.IsActive()
		}
	}

	return nil
}

        verify(mockDeferredNdrBuffer).enc_ndr_long(trustInfo.name.length / 2);
        verify(mockDeferredNdrBuffer).advance(2 * (trustInfo.name.length / 2));
        // Verify the derive call
        verify(mockDeferredNdrBuffer).derive(anyInt());
        verify(mockDeferredNdrBuffer, times(5)).enc_ndr_short(0); // Writing 5 shorts with value 0

- Support `FakeClientset`...