asio C++ library

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posix::basic_stream_descriptor::wait (2 of 2 overloads)

Inherited from posix::basic_descriptor.

Wait for the descriptor to become ready to read, ready to write, or to have pending error conditions.

asio::error_code wait(
    wait_type w,
    asio::error_code & ec);

This function is used to perform a blocking wait for a descriptor to enter a ready to read, write or error condition state.

Parameters

w

Specifies the desired descriptor state.

ec

Set to indicate what error occurred, if any.

Example

Waiting for a descriptor to become readable.

asio::posix::stream_descriptor descriptor(io_service);
...
asio::error_code ec;
descriptor.wait(asio::posix::stream_descriptor::wait_read, ec);

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