T-Kernel Specification (1.B0.02)

110 CHAPTER 4. T-KERNEL/OS FUNCTIONS
TA TFIFO
TA TPRI
TA INHERIT
TA CEILING
TA NODISWAI
Tasks are queued in FIFO order
Tasks are queued in priority order
Priority inheritance protocol
Priority ceiling protocol
Wait disabling by tk dis wai is prohibited
When the TA TFIFO attribute is designated, the order of the mutex task queue is FIFO. If TA TPRI,
TA INHERIT, or TA CEILING is designated, tasks are ordered by their priority. TA INHERIT indicates that
priority inheritance protocol is used, and TA CEILING designates priority ceiling protocol.
Only when TA CEILING is designated does ceilpri have validity, setting the mutex ceiling priority.
#define TA_TFIFO 0x00000000 /* manage task queue by FIFO */
#define TA_TPRI 0x00000001 /* manage task queue by priority */
#define TA_INHERIT 0x00000002 /* priority inheritance protocol */
#define TA_CEILING 0x00000003 /* priority ceiling protocol */
#define TA_NODISWAI 0x00000080 /* reject wait disabling */
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T-Kernel 1.B0.02