forked from enlightenment/efl
44 lines
1.9 KiB
Plaintext
44 lines
1.9 KiB
Plaintext
class @beta Efl.Net.Socket_Simple extends Efl.Io.Buffered_Stream implements Efl.Net.Socket {
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[[A wrapper socket offering an easy to use, buffered I/O.
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The simple socket encapsulates an actual @Efl.Net.Socket and
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uses it with an @Efl.Io.Buffered_Stream, which creates an input
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@Efl.Io.Queue and an output @Efl.Io.Queue. These are linked
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using a receiver and a sender @Efl.Io.Copier.
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The idea is that unlike the traditional @Efl.Net.Socket which
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attempts to write directly to socket and thus may take less data
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than requested, this one will keep the pending data in its own
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buffer, feeding to the actual socket when
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@Efl.Io.Writer.can_write. This makes its operation much simpler
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as @Efl.Io.Writer.write will always take the full data -- allows
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"write and forget", if unlimited (see
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@Efl.Io.Buffered_Stream.max_queue_size_output).
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Reading is also much simpler since received data is kept in an
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@Efl.Io.Queue, thus its size can be queried with
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@Efl.Io.Buffered_Stream.pending_read and read with
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@Efl.Io.Reader.read or peeked with
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@Efl.Io.Buffered_Stream.slice, then discarded with
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@Efl.Io.Buffered_Stream.discard or
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@Efl.Io.Buffered_Stream.clear.
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When waiting for a complete message, you can just peek at its
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contents: if incomplete do nothing, if complete then use either
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@Efl.Io.Reader.read to get a copy or manipulate a read-only
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reference from @Efl.Io.Buffered_Stream.slice and then
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@Efl.Io.Buffered_Stream.discard
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The actual socket is set with the constructor method
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@Efl.Io.Buffered_Stream.inner_io.set and can be retrieved with
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@Efl.Io.Buffered_Stream.inner_io.get, which should be used with
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care.
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]]
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implements {
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Efl.Io.Buffered_Stream.inner_io { set; }
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Efl.Net.Socket.address_local { get; }
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Efl.Net.Socket.address_remote { get; }
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}
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}
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