Method ensure

packages/pg-protocol/src/buffer-writer.ts:11–21

(size: number)

  }

  private ensure(size: number): void {
    const remaining = this.buffer.length - this.offset
    if (remaining < size) {
      const oldBuffer = this.buffer
      // exponential growth factor of around ~ 1.5
      // https://stackoverflow.com/questions/2269063/buffer-growth-strategy
      const newSize = oldBuffer.length + (oldBuffer.length >> 1) + size
      this.buffer = Buffer.allocUnsafe(newSize)
      oldBuffer.copy(this.buffer)
    }
  }

  public addInt32(num: number): Writer {
    this.ensure(4)