timeout.LogSuccess(UTCNow().Sub(start))
	return LockContext{ctx: newCtx, cancel: cancel}, nil
}

// Unlock - block until write lock is released.
func (di *distLockInstance) Unlock(lc LockContext) {
	if lc.cancel != nil {
		lc.cancel()
	}
	di.rwMutex.Unlock(lc.ctx)
}

// RLock - block until read lock is taken or timeout has occurred.

	// Counter to increment total written.
	var totalWritten int64

	// Write all data blocks to dst.
	for _, block := range enBlocks[:dataBlocks] {
		// Skip blocks until we have reached our offset.
		if offset >= int64(len(block)) {
			// Decrement offset.
			offset -= int64(len(block))
			continue
		}

		// Skip until offset.
		block = block[offset:]

		// Reset the offset for next iteration to read everything

        length -= remainder;
        int block;
        int i = 0;
        while (i < length) {
            block = ((bytes[i++] & 0xff) << 16) | ((bytes[i++] & 0xff) << 8) |
                    (bytes[i++] & 0xff);
            buffer.append(ALPHABET.charAt(block >>> 18));
            buffer.append(ALPHABET.charAt((block >>> 12) & 0x3f));
            buffer.append(ALPHABET.charAt((block >>> 6) & 0x3f));

     *    <p>
     *    Transforms context based on 512 bits from input block starting
     *    from the offset'th byte.
     *
     *    @param    block    input sub-array.
     *    @param    offset    starting position of sub-array.
     */
    private void transform (byte[] block, int offset) {

        // encodes 64 bytes from input block into an array of 16 32-bit
        // entities. Use A as a temp var.

    }

    BlockDoc getBlock(String name) {
        def block = classBlocks.find { it.name == name }
        if (block) {
            return block
        }
        for (extensionDoc in classExtensions) {
            block = extensionDoc.extensionBlocks.find { it.name == name }
            if (block) {
                return block
            }
        }

    }

    List<BlockDoc> getExtensionBlocks() {
        List<BlockDoc> blocks = []
        mixinClasses.each { mixin ->
            mixin.classBlocks.each { block ->
                blocks << block.forClass(targetClass)
            }
        }
        extraBlocks.each { block->
            blocks << block.forClass(targetClass)
        }
        return blocks.sort { it.name }
    }

   */
  fun schedule(
    name: String,
    delayNanos: Long = 0L,
    block: () -> Long,
  ) {
    schedule(
      object : Task(name) {
        override fun runOnce(): Long {
          return block()
        }
      },
      delayNanos,
    )
  }

  /**
   * Executes [block] once on a task runner thread.
   *

        MethodMetaData tooManyParams = method('block', classMetaData, paramTypes: ['String', 'boolean'])
        MethodMetaData notAClosure = method('block', classMetaData, paramTypes: ['String'])
        MethodMetaData noBlockProperty = method('notBlock', classMetaData, paramTypes: [Closure.class.name])
        _ * classMetaData.findProperty('block') >> blockProperty

.termynal-comment {
  color: #4a968f;
  font-style: italic;
  display: block;
}

.termy {
  /* For right to left languages */
  direction: ltr;
}

.termy [data-termynal] {
  white-space: pre-wrap;
}

a.external-link {
  /* For right to left languages */
  direction: ltr;
  display: inline-block;
}

a.external-link::after {
  /* \00A0 is a non-breaking space

### Locks

We have 3 different things that we synchronize on.

#### Http2Connection

This lock guards internal state of each connection. This lock is never held for blocking operations. That means that we acquire the lock, read or write a few fields and release the lock. No I/O and no application-layer callbacks.

#### Http2Stream