diff options
| author | Richard Braun <rbraun@sceen.net> | 2013-01-11 23:49:23 +0100 |
|---|---|---|
| committer | Richard Braun <rbraun@sceen.net> | 2013-01-11 23:49:23 +0100 |
| commit | 644a177521a390133c98b9de83934a25e2be4f67 (patch) | |
| tree | 186d4c4d5b23b4e0a94460ecb75e7a1f910a249f /kern/error.h | |
| parent | fb1b8cf4f196903f770ce9b0274423626c145517 (diff) | |
kern/thread: improve processor-local scheduling
This change introduces scheduling classes, including support for real-time
and time-sharing threads. The real-time class matches the requirements of
the POSIX SCHED_FIFO and SCHED_RR policies. The time-sharing class makes
use of a scheduling algorithm based on group ratio round-robin (GR3) to
provide proportional fairness.
Diffstat (limited to 'kern/error.h')
| -rw-r--r-- | kern/error.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kern/error.h b/kern/error.h index bb1514a..93de842 100644 --- a/kern/error.h +++ b/kern/error.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2012 Richard Braun. + * Copyright (c) 2012, 2013 Richard Braun. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -19,5 +19,6 @@ #define _KERN_ERROR_H #define ERROR_NOMEM 1 +#define ERROR_AGAIN 2 #endif /* _KERN_ERROR_H */ |