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Subject: [boost] [asio] file i/o under linux
From: Kamil Nowosad (kamil.nowosad_at_[hidden])
Date: 2011-03-15 14:43:00


I have been working recently on support for asynchronous file i/o in
asio library in linux. Perhaps some of my code will interest you.

The interface allows for doing read, write and fsync/fdatasync
operations. The implementation uses either POSIX AIO or linux-native
libaio (this may be currently switched by #define ASIO_USE_LIBAIO).

I have based the initial work on patch brought by Felipe Magno de
Almeida in 2005 (
/93068.php). As you may realize by studying my modifications of
task_io_service, the file i/o operations are unable to coexist with
operations of other kind within single io_service. I did not have time
to test it thoroughly, but basic tests pass.

The patch is created against 1_45_0 version, however everything works
well when applied to 1_46_1. The tarball contains also a simple example
file and a script that compiles it.

I will be pleased to receive any feedback.

Best regards,
Kamil Nowosad

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