.addHeader("icy-br:128")
        .addHeader("ice-audio-info: bitrate=128;samplerate=44100;channels=2")
        .addHeader("icy-br:128")
        .addHeader("icy-description:Rock")
        .addHeader("icy-genre:riders")
        .addHeader("icy-name:A2RRock")
        .addHeader("icy-pub:1")
        .addHeader("icy-url:http://www.A2Rradio.com")
        .addHeader("Server: Icecast 2.3.3-kh8")

Framing rules make it impractical to implement http/2 correctly on a single blocking thread. The flow-control features introduce feedback between reads and writes, requiring writes to acknowledge reads and reads to throttle writes.

In OkHttp we expose a blocking API over a framed protocol. This document explains the code and policy that makes that work.

### Threads

#### Application's calling thread

    result = 31 * result + defaultValue.hashCode()
    result = 31 * result + (if (typeHint) 1 else 0)
    return result
  }

  override fun toString(): String = "$name [$tagClass/$tag]"

  /** Reads and writes values without knowledge of the enclosing tag, length, or defaults. */
  interface Codec<T> {
    fun decode(reader: DerReader): T

    fun encode(
      writer: DerWriter,
      value: T,
    )
  }

  }

  fun getMaxHeaderListSize(defaultValue: Int): Int {
    val bit = 1 shl MAX_HEADER_LIST_SIZE
    return if (bit and set != 0) values[MAX_HEADER_LIST_SIZE] else defaultValue
  }

  /**
   * Writes `other` into this. If any setting is populated by this and `other`, the
   * value and flags from `other` will be kept.
   */
  fun merge(other: Settings) {
    for (i in 0 until COUNT) {
      if (!other.isSet(i)) continue

   * directory including files that weren't created by the cache.
   */
  @Throws(IOException::class)
  fun delete() {
    cache.delete()
  }

  /**
   * Deletes all values stored in the cache. In-flight writes to the cache will complete normally,
   * but the corresponding responses will not be stored.
   */
  @Throws(IOException::class)
  fun evictAll() {
    cache.evictAll()
  }

  /**

 * Returns true if file streams can be manipulated independently of their paths. This is typically
 * true for systems like Mac, Unix, and Linux that use inodes in their file system interface. It is
 * typically false on Windows.
 *
 * If this returns false we won't permit simultaneous reads and writes. When writes commit we need
 * to delete the previous snapshots, and that won't succeed if the file is open. (We do permit
 * multiple simultaneous reads.)
 *

import okhttp3.internal.http.promisesBody
import okhttp3.internal.stripBody
import okio.Buffer
import okio.Source
import okio.Timeout
import okio.buffer

/** Serves requests from the cache and writes responses to the cache. */
class CacheInterceptor(internal val cache: Cache?) : Interceptor {
  @Throws(IOException::class)
  override fun intercept(chain: Interceptor.Chain): Response {
    val call = chain.call()

OkHttp 1.x Change Log
=====================

## Version 1.6.0

_2014-05-23_

 * Offer bridges to make it easier to migrate from OkHttp 1.x to OkHttp 2.0.
   This adds `OkUrlFactory`, `Cache`, and `@Deprecated` annotations for APIs
   dropped in 2.0.

## Version 1.5.4

_2014-04-14_

 * Drop ALPN support in Android. There's a concurrency bug in all
   currently-shipping versions.

  }

internal fun Socket.peerName(): String {
  val address = remoteSocketAddress
  return if (address is InetSocketAddress) address.hostName else address.toString()
}

/**
 * Returns true if new reads and writes should be attempted on this.
 *
 * Unfortunately Java's networking APIs don't offer a good health check, so we go on our own by
 * attempting to read with a short timeout. If the fails immediately we know the socket is

import okhttp3.internal.http2.Http2.frameLog
import okhttp3.internal.http2.Http2.frameLogWindowUpdate
import okhttp3.internal.writeMedium
import okio.Buffer
import okio.BufferedSink

/** Writes HTTP/2 transport frames. */
@Suppress("NAME_SHADOWING")
class Http2Writer(
  private val sink: BufferedSink,
  private val client: Boolean,
) : Closeable {
  internal val lock: ReentrantLock = ReentrantLock()