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authorJörg Frings-Fürst <jff@merkur>2014-05-18 16:08:14 +0200
committerJörg Frings-Fürst <jff@merkur>2014-05-18 16:08:14 +0200
commita15cf65c44d5c224169c32ef5495b68c758134b7 (patch)
tree3419f58fc8e1b315ba8171910ee044c5d467c162 /libcult/cult/sched/spin.ixx
Imported Upstream version 3.3.0.2upstream/3.3.0.2
Diffstat (limited to 'libcult/cult/sched/spin.ixx')
-rw-r--r--libcult/cult/sched/spin.ixx43
1 files changed, 43 insertions, 0 deletions
diff --git a/libcult/cult/sched/spin.ixx b/libcult/cult/sched/spin.ixx
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+// file : cult/sched/spin.ixx
+// author : Boris Kolpackov <boris@kolpackov.net>
+// copyright : Copyright (c) 2005-2010 Boris Kolpackov
+// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#include <cult/sched/exception.hxx>
+
+namespace Cult
+{
+ namespace Sched
+ {
+ inline
+ Void Spin::
+ lock ()
+ {
+ if (Int e = pthread_spin_lock (&spin_))
+ throw Implementation (e);
+ }
+
+ inline
+ Boolean Spin::
+ try_lock ()
+ {
+ Int e (pthread_spin_trylock (&spin_));
+
+ switch (e)
+ {
+ case 0: return true;
+ case EBUSY: return false;
+ default: throw Implementation (e);
+ }
+ }
+
+ inline
+ Void Spin::
+ unlock ()
+ {
+ if (Int e = pthread_spin_unlock (&spin_))
+ throw Implementation (e);
+ }
+ }
+}
+