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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-01-05 22:19:21 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-01-05 22:19:21 +0000 |
| commit | 5870ac55678115857215a4199f519263599ee341 (patch) | |
| tree | 8b6f044ae7cccc3da9a3bd69b2468c2ca77acff8 /cpukit/rtems/macros/rtems/rtems | |
| parent | Updated to reflect a time that had previously been left out due to (diff) | |
| download | rtems-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/rtems/rtems')
| -rw-r--r-- | cpukit/rtems/macros/rtems/rtems/attr.inl | 29 |
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 * */ |