Import std.io.streams

Reader

std.io.streams

interface

Public Interface Reader

What bytes come from: a file, a socket, memory, or another Reader they go through.

Examples

// A Reader of the same byte, forever.
Class Zeros Implements Reader
    Public Method Read(into: Buffer<UInt8>): Int64 Throws IOError
        For i = 0 Until into.Count
            into[i] = 0
        End For
        Return into.Count
    End Method
End Class

Local four = Buffer<UInt8>(4)
Try ReadExact(Zeros(), four)
Expect(four.ToArray() == [0, 0, 0, 0] As UInt8[])

std/io/streams.fb, line 59

Method Read(into: Buffer<UInt8>): Int64 Throws IOError method #

Reads up to into.Count bytes into the start of into, and gives how many it read: one at least, or 0 once the stream has ended, or for an empty Buffer.
Async Method ReadAsync(into: Buffer<UInt8>): Int64 Throws IOError method #

Read's Async twin, which waits on the main thread instead of blocking it. One that can only block reads with Read.

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