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std.stdio.STDIN

class pub STDIN

The standard input stream of the current OS process.

Static methods

new

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fn pub static new -> STDIN {
  STDIN()
}

fn pub static new -> STDIN

Returns a new handle to the input stream.

Instance methods

read

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fn pub mut read(into: mut ByteArray, size: Int) -> Result[Int, Error] {
  match inko_stdin_read(_INKO.process, into, size) {
    case { @tag = 0, @value = v } -> Result.Ok(v)
    case { @tag = _, @value = e } -> Result.Error(Error.from_os_error(e))
  }
}

fn pub mut read(into: mut ByteArray, size: Int) -> Result[Int, Error]

Reads bytes from a stream into a ByteArray.

The return value is the number of bytes read.

The size argument specifies how many bytes are to be read. The actual number of bytes read may be less than this value.

read_all

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fn pub mut read_all(bytes: mut ByteArray) -> Result[Int, Error] {
  let mut total = 0
  let mut read_size = INITIAL_READ_ALL_SIZE

  loop {
    let bytes_read = try read(into: bytes, size: read_size)

    if bytes_read == 0 { return Result.Ok(total) }

    total += bytes_read

    # To reduce the overhead of large buffer reads, we increase the buffer
    # size as more data is read.
    if read_size < MAX_READ_ALL_SIZE { read_size *= 2 }
  }
}

fn pub mut read_all(bytes: mut ByteArray) -> Result[Int, Error]

Reads all bytes from the stream into the ByteArray.

If an error is encountered while reading, this method stops reading any more bytes and re-throws the error.

The return value is the number of bytes read.

Implemented traits

std.io.

Read

impl Read for STDIN