/// <summary>
/// Asynchronously write to a <see cref="Stream"/>.
/// </summary>
/// <param name="stream">Target <see cref="Stream"/>.</param>
/// <param name="buffer">Byte array to write to the target.</param>
/// <param name="offset">Position in buffer to start reading from.</param>
/// <param name="count">Number of bytes to read from buffer.</param>
/// <param name="result">The <see cref="Result"/> instance to be returned by the call.</param>
/// <returns>Synchronization handle for the number of bytes read.</returns>
public static Result Write(this Stream stream, byte[] buffer, int offset, int count, Result result)
{
if (SysUtil.UseAsyncIO)
{
return(AsyncUtil.From(stream.BeginWrite, stream.EndWrite, buffer, offset, count, null, result));
}
return(AsyncUtil.Fork(() => stream.Write(buffer, offset, count), result));
}
/// <summary>
/// Asynchronously read from a <see cref="Stream"/>
/// </summary>
/// <param name="stream">Source <see cref="Stream"/></param>
/// <param name="buffer">Byte array to fill from the source</param>
/// <param name="offset">Position in buffer to start writing to</param>
/// <param name="count">Number of bytes to read from the <see cref="Stream"/></param>
/// <param name="result">The <see cref="Result"/> instance to be returned by the call.</param>
/// <returns>Synchronization handle for the number of bytes read.</returns>
public static Result <int> Read(this Stream stream, byte[] buffer, int offset, int count, Result <int> result)
{
if (SysUtil.UseAsyncIO)
{
return(AsyncUtil.From(stream.BeginRead, stream.EndRead, buffer, offset, count, null, result));
}
return(AsyncUtil.Fork(() => SyncRead_Helper(stream, buffer, offset, count), result));
}