*/

package jcifs.smb1.smb1;

import jcifs.smb1.Config;

/**
 * Buffer cache implementation for SMB1 protocol operations.
 * Manages a pool of byte buffers to reduce garbage collection overhead.
 *
 * Performance optimizations:
 * - Uses ConcurrentLinkedQueue for O(1) operations
 * - Lock-free operations for better concurrency
 * - Proper buffer validation and limits
 */
public class BufferCache {

    /**

        assertTrue(e.getMessage().contains("PAC"));
    }

    // Test exception for missing buffers
    @Test
    void testConstructorMissingBuffers() throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(baos);

        // Write header with no buffers
        dos.writeInt(Integer.reverseBytes(0));

	if uint64(len(bp.c)) != size {
		t.Fatalf("bytepool size invalid: got %v want %v", len(bp.c), size)
	}

	// lets drain the buf channel first before we validate invalid buffers.
	for range size {
		bp.Get() // discard
	}

	// Try putting some invalid buffers into pool
	bp.Put(make([]byte, bp.w, bp.wcap-1)) // wrong capacity is rejected (less)
	bp.Put(make([]byte, bp.w, bp.wcap+1)) // wrong capacity is rejected (more)

  private lateinit var server: MockWebServer
  private lateinit var client: OkHttpClient

  @BeforeEach
  fun setUp() {
    // Sockets on some platforms can have large buffers that mean writes do not block when
    // required. These socket factories explicitly set the buffer sizes on sockets created.
    server = MockWebServer()
    server.serverSocketFactory =
      object : DelegatingServerSocketFactory(getDefault()) {

        // Given
        byte[] buffer1 = new byte[256];
        byte[] buffer2 = new byte[256];

        // Prepare both buffers with valid structure
        SMBUtil.writeInt2(4, buffer1, 0);
        SMBUtil.writeInt2(0, buffer1, 2);
        SMBUtil.writeInt2(4, buffer2, 10);
        SMBUtil.writeInt2(0, buffer2, 12);

        // When

/**
 * Internal API for managing reusable buffers
 *
 * @author mbechler
 *
 * <p>This interface is intended for internal use.</p>
 */
public interface BufferCache {

    /**
     * Gets a buffer from the cache or creates a new one if the cache is empty.
     *
     * @return a buffer from the cache, or a new one
     */
    byte[] getBuffer();

    /**
     * Return a buffer to the cache
     *

 * Fix: Support the `PATCH` method.
 * Fix: Support request bodies on `DELETE` method.
 * Fix: Drop the `okhttp-protocols` module.
 * Internal: Replaced internal byte array buffers with pooled buffers ("OkBuffer").


## Version 1.3.0

_2014-01-11_

 * New: Support for "PATCH" HTTP method in client and MockWebServer.
 * Fix: Drop `Content-Length` header when redirected from POST to GET.

package jcifs.internal.dfs;

import java.nio.charset.StandardCharsets;

import jcifs.Encodable;
import jcifs.internal.util.SMBUtil;

/**
 * DFS (Distributed File System) referral request buffer encoder.
 * Creates encoded request buffers for DFS referral requests, specifying the maximum
 * referral level and target path for which DFS resolution is requested.
 *
 * @author mbechler
 */

#### Do-stuff-later pool

    // 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
   * 1024 characters. If we grow past this we don't put it back in the threadlocal, we just keep
   * going and grow as needed.
   */
  private static final ThreadLocal<char[]> DEST_TL =