diff options
Diffstat (limited to 'c/src/exec/posix/macros/rtems/posix/priority.inl')
| -rw-r--r-- | c/src/exec/posix/macros/rtems/posix/priority.inl | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/c/src/exec/posix/macros/rtems/posix/priority.inl b/c/src/exec/posix/macros/rtems/posix/priority.inl new file mode 100644 index 0000000000..ea1ce82669 --- /dev/null +++ b/c/src/exec/posix/macros/rtems/posix/priority.inl @@ -0,0 +1,25 @@ +/* + * $Id$ + */ + +#ifndef __RTEMS_POSIX_PRIORITY_inl +#define __RTEMS_POSIX_PRIORITY_inl + +/* + * 1003.1b-1993,2.2.2.80 definition of priority, p. 19 + * + * "Numericallly higher values represent higher priorities." + * + * Thus, RTEMS Core has priorities run in the opposite sense of the POSIX API. + */ + +#define _POSIX_Priority_Is_valid( _priority ) \ + ((boolean) ((_priority) >= 1 && (_priority) <= 254)) + +#define _POSIX_Priority_To_core( _priority ) \ + ((Priority_Control) (255 - (_priority))) + +#define _POSIX_Priority_From_core( _priority ) \ + (255 - (_priority)) + +#endif |