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SubjectRe: [PATCH 2/3] signalfd: add ability to return siginfo in a raw format (v2)
> As SFD_RAW is being added to the kernel API we should document it.
> Please keep Michael cc'ed and work with him on getting the manpages
> updated.

The API is certainly no thing of beauty, as I already remarked here:
http://thread.gmane.org/gmane.linux.file-systems/70420/focus=1420228

A description of the API can be found here:
https://lwn.net/Articles/531939/

The main problem is the ugliness of changing the meaning of pread()'s
'offset' argument to be a multiplexed [signal queue selector + queue
position].

I do wonder if we can do better, though I have no particular solution
to offer beyond the sledgehammer of adding a new system call.

Cheers,

Michael


--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/


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