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Typedef for the typical
        usage of posix::basic_descriptor.
      
typedef basic_descriptor descriptor;
| Name | Description | 
|---|---|
| Rebinds the descriptor type to another executor. | |
| IO control command to get the amount of data that can be read without blocking. | |
| The type of the executor associated with the object. | |
| A descriptor is always the lowest layer. | |
| The native representation of a descriptor. | |
| Wait types. | 
| Name | Description | 
|---|---|
| Assign an existing native descriptor to the descriptor. | |
| Asynchronously wait for the descriptor to become ready to read, ready to write, or to have pending error conditions. | |
| 
                  Construct a descriptor without opening it.  | |
| Cancel all asynchronous operations associated with the descriptor. | |
| Close the descriptor. | |
| Get the executor associated with the object. | |
| Perform an IO control command on the descriptor. | |
| Determine whether the descriptor is open. | |
| 
                  Get a reference to the lowest layer.  | |
| Get the native descriptor representation. | |
| 
                  Gets the non-blocking mode of the native descriptor implementation.
                   | |
| 
                  Gets the non-blocking mode of the descriptor.  | |
| Move-assign a descriptor from another. | |
| Release ownership of the native descriptor implementation. | |
| Wait for the descriptor to become ready to read, ready to write, or to have pending error conditions. | 
| Name | Description | 
|---|---|
| Protected destructor to prevent deletion through this type. | 
| Name | Description | 
|---|---|
        The posix::basic_descriptor
        class template provides the ability to wrap a POSIX descriptor.
      
Distinct objects: Safe.
Shared objects: Unsafe.
        Header: boost/asio/posix/descriptor.hpp
      
        Convenience header: boost/asio.hpp