Method writeSync

lib/internal/streams/iter/push.js:151–182

* Write chunks synchronously if possible. * Returns true if write completed, false if buffer is full. * @returns {boolean}

(chunks)

   * @returns {boolean}
   */
  writeSync(chunks) {
    if (this.#writerState !== 'open') return false;
    if (this.#consumerState !== 'active') return false;

    if (this.#slots.length >= this.#highWaterMark) {
      switch (this.#backpressure) {
        case 'strict':
          return false;
        case 'block':
          return false;
        case 'drop-oldest':
          if (this.#slots.length > 0) {
            this.#slots.shift();
          }
          break;
        case 'drop-newest':
          // Discard this write, but return true
          for (let i = 0; i < chunks.length; i++) {
            this.#bytesWritten += TypedArrayPrototypeGetByteLength(chunks[i]);
          }
          return true;
      }
    }

    this.#slots.push(chunks);
    for (let i = 0; i < chunks.length; i++) {
      this.#bytesWritten += TypedArrayPrototypeGetByteLength(chunks[i]);
    }

    this.#resolvePendingReads();
    return true;
  }

  /**
   * Write chunks asynchronously.