Boost C++ Libraries

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This version of Boost is under active development. You are currently in the develop branch. The current version is 1.90.0.

posix::descriptor_base::bytes_readable

posix::descriptor_base::bytes_readable

IO control command to get the amount of data that can be read without blocking.

typedef implementation_defined bytes_readable;

Implements the FIONREAD IO control command.

Example

boost::asio::posix::stream_descriptor descriptor(my_context);
...
boost::asio::descriptor_base::bytes_readable command(true);
descriptor.io_control(command);
std::size_t bytes_readable = command.get();

Requirements

Header: boost/asio/posix/descriptor_base.hpp

Convenience header: boost/asio.hpp