boost::capy::Stream

Concept for types providing both read and write operations.

Synopsis

Declared in <boost/capy/concept/stream.hpp>

template<typename T>
concept Stream = ReadStream<T> && WriteStream<T>;

Description

A type satisfies Stream if it satisfies both ReadStream and WriteStream.

Syntactic Requirements

  • Must satisfy ReadStream

  • Must satisfy WriteStream

Semantic Requirements

The semantics are the union of ReadStream and WriteStream. The stream supports bidirectional I/O through read_some and write_some operations.

Example

template<Stream S>
task<> echo(S& stream)
{
    char buf[1024];
    auto [ec, n] = co_await stream.read_some(mutable_buffer(buf));
    if(ec)
        co_return;
    co_await stream.write_some(const_buffer(buf, n));
}

See Also

ReadStream, WriteStream

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