From 7e4938ca42472510631c10b53502d84f81262d1a Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Mon, 6 Oct 1997 21:28:40 +0000
Subject: Make Post an atomic operation.

---
 cpukit/rtems/inline/rtems/rtems/eventset.inl | 6 +++++-
 cpukit/rtems/macros/rtems/rtems/eventset.inl | 8 +++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

(limited to 'cpukit')

diff --git a/cpukit/rtems/inline/rtems/rtems/eventset.inl b/cpukit/rtems/inline/rtems/rtems/eventset.inl
index a32190888b..375b15c65c 100644
--- a/cpukit/rtems/inline/rtems/rtems/eventset.inl
+++ b/cpukit/rtems/inline/rtems/rtems/eventset.inl
@@ -48,7 +48,11 @@ RTEMS_INLINE_ROUTINE void _Event_sets_Post(
   rtems_event_set *the_event_set
 )
 {
-   *the_event_set |= the_new_events;
+  ISR_Level level;
+
+  _ISR_Disable( level );
+    *the_event_set |= the_new_events;
+  _ISR_Enable( level );
 }
 
 /*PAGE
diff --git a/cpukit/rtems/macros/rtems/rtems/eventset.inl b/cpukit/rtems/macros/rtems/rtems/eventset.inl
index d5e95e4db6..a924935196 100644
--- a/cpukit/rtems/macros/rtems/rtems/eventset.inl
+++ b/cpukit/rtems/macros/rtems/rtems/eventset.inl
@@ -31,7 +31,13 @@
  */
 
 #define _Event_sets_Post( _the_new_events, _the_event_set ) \
-   *(_the_event_set) |= (_the_new_events)
+   do { \
+     ISR_Level level; \
+     \
+     _ISR_Disable( level ); \
+       *(_the_event_set) |= (_the_new_events); \
+     _ISR_Enable( level ); \
+   } while (0);
 
 /*PAGE
  *
-- 
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