private Platform() {}

  /** Returns a thread-local 1024-char array. */
  static char[] charBufferFromThreadLocal() {
    // requireNonNull accommodates Android's @RecentlyNullable annotation on ThreadLocal.get
    return requireNonNull(DEST_TL.get());
  }

  /**
   * A thread-local destination buffer to keep us from creating new buffers. The starting size is

        response.lastWriteTime = time;
        assertEquals(time, response.lastWriteTime);
    }

    @Test
    void testSetDataSize() {
        response.dataSize = 1024;
        assertEquals(1024, response.dataSize);
    }

    @Test
    void testSetGrantedAccess() {
        response.grantedAccess = 0x02; // FILE_WRITE_DATA
        assertEquals(0x02, response.grantedAccess);
    }

        ByteBuffer buffer = ByteBuffer.allocateDirect(1024);
        EnumSet<RdmaAccess> access = EnumSet.of(RdmaAccess.LOCAL_READ, RdmaAccess.LOCAL_WRITE);

        RdmaMemoryRegion region = provider.registerMemory(buffer, access);
        assertNotNull(region, "Memory region should not be null");
        assertEquals(buffer, region.getBuffer(), "Buffer should match");
        assertEquals(1024, region.getSize(), "Size should match buffer size");

            fileId[i] = (byte) (i + 1);
        }

        request.setFileId(fileId);

        // Verify by writing to buffer and checking the fileId position
        byte[] buffer = new byte[1024];
        request.writeBytesWireFormat(buffer, Smb2Constants.SMB2_HEADER_LENGTH);

        // FileId is at offset 8 in the request structure
        for (int i = 0; i < 16; i++) {

[![wikipedia](Circular_Buffer_Animation.gif)](https://github.com/smallnest/ringbuffer)

# Usage

```go
package main

import (
	"fmt"

	"github.com/smallnest/ringbuffer"
)

func main() {
	rb := ringbuffer.New(1024)

	// write
	rb.Write([]byte("abcd"))
	fmt.Println(rb.Length())
	fmt.Println(rb.Free())

	// read
	buf := make([]byte, 4)
	rb.Read(buf)
	fmt.Println(string(buf))
}
```

    }

    @Test
    @DisplayName("Should set and get original message size")
    void testOriginalMessageSize() {
        // Given
        int messageSize = 1024;

        // When
        transformHeader.setOriginalMessageSize(messageSize);

        // Then
        assertEquals(messageSize, transformHeader.getOriginalMessageSize());
    }

    @Test

        request = new Smb2CreateRequest(mockConfig, "test.txt");

        request.setSecurityFlags((byte) 0x01);
        // Verify through writeBytesWireFormat
        byte[] buffer = new byte[1024];
        request.writeBytesWireFormat(buffer, 0);
        assertEquals((byte) 0x01, buffer[2]);
    }

    @Test
    @DisplayName("Test oplock level setter")
    void testSetRequestedOplockLevel() {

            cache.getBuffer();
            cache.releaseBuffer(new byte[1024]);
        }, "All BufferCache interface methods should be callable");
    }

    @Test
    @DisplayName("getBuffer should return non-null byte array")
    void testGetBufferContract() {
        // Given
        byte[] expectedBuffer = new byte[1024];
        when(mockBufferCache.getBuffer()).thenReturn(expectedBuffer);

        // When

    val builder = OkHttpClient.Builder()
    assertFailsWith<IllegalArgumentException> {
      builder.minWebSocketMessageToCompress(-1024)
    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("minWebSocketMessageToCompress must be positive: -1024")
    }
  }

  companion object {
    private val DEFAULT_PROXY_SELECTOR = ProxySelector.getDefault()

if "%unit%" == "G" goto giga

rem no unit found, must be bytes; consider the whole value
set conv=%value%
rem convert to KB
set /a conv=%conv% / 1024
:kilo
rem convert to MB
set /a conv=%conv% / 1024
goto mega
:giga
rem convert to MB
set /a conv=%conv% * 1024
:mega
set "%~2=%conv%"
goto:eof