See the License for the specific language governing permissions and
limitations under the License.
*/

// Package coverage provides tools for coverage-instrumented binaries to collect and
// flush coverage information.
package coverage

import (
	"flag"
	"fmt"
	"os"
	"testing"
	"time"

	"k8s.io/apimachinery/pkg/util/wait"
	"k8s.io/klog/v2"
)

var coverageFile string

				return
			}
			grid.PutByteBuffer(entry)
			if len(traceCh) == 0 {
				// Flush if nothing is queued
				w.(http.Flusher).Flush()
			}
		case <-keepAliveTicker.C:
			if len(traceCh) > 0 {
				continue
			}
			if _, err := w.Write([]byte(" ")); err != nil {
				return
			}
			w.(http.Flusher).Flush()
		case <-ctx.Done():
			return
		}
	}
}

            }
            dispatching = true;
            try {
                delegate.dispatch(message);
                delegate.flush();
            } finally {
                dispatching = false;
            }
        } finally {
            lock.unlock();
        }
    }

    @Override
    public T receive() {

	systemstack(freeStackSpans)

	// Ensure all mcaches are flushed. Each P will flush its own
	// mcache before allocating, but idle Ps may not. Since this
	// is necessary to sweep all spans, we need to ensure all
	// mcaches are flushed before we start the next GC cycle.
	//
	// While we're here, flush the page cache for idle Ps to avoid
	// having pages get stuck on them. These pages are hidden from

func traceSnapshotMemory(gen uintptr) {
	assertWorldStopped()

	// Write a batch containing information that'll be necessary to
	// interpret the events.
	var flushed bool
	w := unsafeTraceExpWriter(gen, nil, traceExperimentAllocFree)
	w, flushed = w.ensure(1 + 4*traceBytesPerNumber)
	if flushed {
		// Annotate the batch as containing additional info.
		w.byte(byte(traceAllocFreeInfoBatch))
	}

	// Emit info.

		defer timer.Stop()

		w.Header().Set("Transfer-Encoding", "chunked")
		w.WriteHeader(200)

		flusher, _ := w.(http.Flusher)
		flusher.Flush()

		count := 0
		for {
			<-timer.C
			n, err := w.Write(responseBody[count : count+1])
			if err != nil {
				return
			}
			flusher.Flush()
			count += n
			if count == len(responseBody) {
				return
			}
		}
	})

	// If nil, http.DefaultTransport is used.
	Transport http.RoundTripper

	// FlushInterval specifies the flush interval
	// to flush to the client while copying the
	// response body.
	// If zero, no periodic flushing is done.
	// A negative value means to flush immediately
	// after each write to the client.
	// The FlushInterval is ignored when ReverseProxy

        BCPGOutputStream bufferedOutput = new BCPGOutputStream(signatureDestination);
        pgpSignature.encode(bufferedOutput);
        bufferedOutput.flush();
    }

    public PGPSignatureGenerator createSignatureGenerator() {
        try {

	str := strings.Repeat("x", 1<<10)
	bs := []byte(str)
	for i := 0; i < b.N; i++ {
		bw := NewWriter(io.Discard)
		bw.Flush()
		bw.WriteByte('a')
		bw.Flush()
		bw.WriteRune('B')
		bw.Flush()
		bw.Write(bs)
		bw.Flush()
		bw.WriteString(str)
		bw.Flush()
	}
}

func BenchmarkWriterFlush(b *testing.B) {
	b.ReportAllocs()
	bw := NewWriter(io.Discard)

	// data should be formatted like the output of SaveInto()
	// flush sets the presence of the "--noflush" flag. see: FlushFlag
	// counters sets the "--counters" flag. see: RestoreCountersFlag
	Restore(table Table, data []byte, flush FlushFlag, counters RestoreCountersFlag) error
	// RestoreAll is the same as Restore except that no table is specified.
	RestoreAll(data []byte, flush FlushFlag, counters RestoreCountersFlag) error