[boost] Re: Asynchronous I/O

From: Robert Ramey (ramey_at_[hidden])
Date: 2005-03-29 11:01:38

I refreshed my memory re aio.h and found it uses no callback.

aio_read
Start an asynchronous read operation
aio_write
Start an asynchronous write operation
lio_listio
Start a list of asynchronous I/O operations
aio_suspend
Wait for completion of one or more asynchronous I/O operations
aio_error
Retrieve the error status of an asynchronous I/O operation
aio_return
Retrieve the return status of an asynchronous I/O operation and free any
associated system resources
aio_cancel
Request cancellation of a pending asynchronous I/O operation
aio_fsync
Initiate synchronization of the media image of a file to which asynchronous
operations have been addressed

The question here is:

iIs aio.h interface not sufficient in some way?  If not, what facility is it
missing?  If it is sufficient, then just depend on the available
implementation or re-implement the interface in the most convenient way.

Robert Ramey

Boris wrote:
> I am not sure if I understand correctly. Just as Don I think we can't
> get around threads when we have callbacks. I don't know about Windows
> but the callback in aio (Posix) is done by creating a new thread.
>