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authorJoel Sherrill <joel.sherrill@OARcorp.com>2000-01-05 22:19:21 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2000-01-05 22:19:21 +0000
commit5870ac55678115857215a4199f519263599ee341 (patch)
tree8b6f044ae7cccc3da9a3bd69b2468c2ca77acff8 /cpukit/rtems/macros
parent5283cc823dcfa6f91837702d910fb37984909f35 (diff)
downloadrtems-5870ac55678115857215a4199f519263599ee341.tar.bz2
Added support for simple binary semaphores in addition to the high
power binary/mutex style semaphores already supported by RTEMS. This was done at the request of Eric Norum <eric@cls.usask.ca> in support of his effort to port EPICS to RTEMS. This change consisted of changing the nesting_allowed boolean into a lock_nesting_behavior enumerated value as well as allowing the core mutex object to optionally support ensuring that the holder of a binary semaphore released it. Finally, a more subtle enhancement was to allow the non-holder to release a priority inheritance/ceiling mutex and still allow the holding task to return to its original priority.
Diffstat (limited to 'cpukit/rtems/macros')
-rw-r--r--cpukit/rtems/macros/rtems/rtems/attr.inl29
1 files changed, 19 insertions, 10 deletions
diff --git a/cpukit/rtems/macros/rtems/rtems/attr.inl b/cpukit/rtems/macros/rtems/rtems/attr.inl
index 516752b7d1..56ccac6657 100644
--- a/cpukit/rtems/macros/rtems/rtems/attr.inl
+++ b/cpukit/rtems/macros/rtems/rtems/attr.inl
@@ -68,7 +68,25 @@
*/
#define _Attributes_Is_binary_semaphore( _attribute_set ) \
- ( (_attribute_set) & RTEMS_BINARY_SEMAPHORE )
+ (((_attribute_set) & RTEMS_SEMAPHORE_CLASS) == RTEMS_BINARY_SEMAPHORE)
+
+/*PAGE
+ *
+ * _Attributes_Is_simple_binary_semaphore
+ *
+ */
+
+#define _Attributes_Is_simple_binary_semaphore( _attribute_set ) \
+ (((_attribute_set) & RTEMS_SEMAPHORE_CLASS) == RTEMS_SIMPLE_BINARY_SEMAPHORE)
+
+/*PAGE
+ *
+ * _Attributes_Is_counting_semaphore
+ *
+ */
+
+#define _Attributes_Is_counting_semaphore( _attribute_set ) \
+ (((_attribute_set) & RTEMS_SEMAPHORE_CLASS) == RTEMS_COUNTING_SEMAPHORE)
/*PAGE
*
@@ -90,15 +108,6 @@
/*PAGE
*
- * _Attributes_Is_nesting_allowed
- *
- */
-
-#define _Attributes_Is_nesting_allowed( _attribute_set ) \
- ( !((_attribute_set) & RTEMS_NO_NESTING_ALLOWED) )
-
-/*PAGE
- *
* _Attributes_Is_system_task
*
*/