|  | 
        The posix::descriptor_base
        class is used as a base for the posix::basic_stream_descriptor class template
        so that we have a common place to define the associated IO control commands.
      
class descriptor_base
| Name | Description | 
|---|---|
| IO control command to get the amount of data that can be read without blocking. | |
| (Deprecated: Use non_blocking().) IO control command to set the blocking mode of the descriptor. | 
| Name | Description | 
|---|---|
| Protected destructor to prevent deletion through this type. | 
        Header: asio/posix/descriptor_base.hpp
      
        Convenience header: asio.hpp