"fmt"
	"io"
	"os"
	"slices"
	"strconv"
	"unicode"
)

func ExampleBuffer() {
	var b bytes.Buffer // A Buffer needs no initialization.
	b.Write([]byte("Hello "))
	fmt.Fprintf(&b, "world!")
	b.WriteTo(os.Stdout)
	// Output: Hello world!
}

func ExampleBuffer_reader() {
	// A Buffer can turn a string or a []byte into an io.Reader.
	buf := bytes.NewBufferString("R29waGVycyBydWxlIQ==")

  @Test
  fun responseBodyIsBinary() {
    setLevel(Level.BODY)
    val buffer = Buffer()
    buffer.writeUtf8CodePoint(0x89)
    buffer.writeUtf8CodePoint(0x50)
    buffer.writeUtf8CodePoint(0x4e)
    buffer.writeUtf8CodePoint(0x47)
    buffer.writeUtf8CodePoint(0x0d)
    buffer.writeUtf8CodePoint(0x0a)
    buffer.writeUtf8CodePoint(0x1a)
    buffer.writeUtf8CodePoint(0x0a)
    server.enqueue(
      MockResponse

	}
	for i, test := range erasureEncodeDecodeTests {
		buffer := make([]byte, len(data), 2*len(data))
		copy(buffer, data)

		erasure, err := NewErasure(t.Context(), test.dataBlocks, test.parityBlocks, blockSizeV2)
		if err != nil {
			t.Fatalf("Test %d: failed to create erasure: %v", i, err)
		}
		encoded, err := erasure.EncodeData(t.Context(), buffer)
		if err != nil {
			t.Fatalf("Test %d: failed to encode data: %v", i, err)

        }
    }

    private void parseHtmlEntity(StringBuilder buffer) {
        scanner.next();
        scanner.mark();
        scanner.find(';');
        String value = ENTITIES.get(scanner.region().toLowerCase(Locale.ROOT));
        buffer.append(value);
        scanner.next();
    }

    private void parseHtmlEncodedChar(StringBuilder buffer) {
        scanner.next(2);
        scanner.mark();

	v := PartialOperation{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodePartialOperation(b *testing.B) {
	v := PartialOperation{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))

	v := listPathOptions{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodelistPathOptions(b *testing.B) {
	v := listPathOptions{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))

	v := WalkDirOptions{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodeWalkDirOptions(b *testing.B) {
	v := WalkDirOptions{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))

	v := SiteResyncStatus{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodeSiteResyncStatus(b *testing.B) {
	v := SiteResyncStatus{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))

	v := TierConfigMgr{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodeTierConfigMgr(b *testing.B) {
	v := TierConfigMgr{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))

const DirectioAlignSize = 4096

// CopyAligned - copies from reader to writer using the aligned input
// buffer, it is expected that input buffer is page aligned to
// 4K page boundaries. Without passing aligned buffer may cause
// this function to return error.
//
// This code is similar in spirit to io.Copy but it is only to be