T-Kernel Specification (1.B0.02)

4.1. TASK MANAGEMENT FUNCTIONS 27
tk cre tsk
Create Task
[C Language Interface]
ID tskid = tk_cre_tsk ( T_CTSK *pk_ctsk ) ;
[Parameters]
T CTSK* pk ctsk Information about the task to be created
pk ctsk detail:
VP exinf Extended information
ATR tskatr Task attributes
FP task Task start address
PRI itskpri Initial task priority
INT stksz Stack size (bytes)
INT sstksz System stack size (bytes)
VP stkptr User stack pointer
VP uatb Task space page table
INT lsid Logical space ID
ID resid Resource ID
(Other implementation-dependent parameters may be added beyond this point.)
[Return Parameters]
ID tskid Task ID
or Error Code
[Error Codes]
E NOMEM
E LIMIT
E RSATR
E NOSPT
E PAR
E ID
E NOCOP
Insufficient memory (memory for control block or user stack cannot be allocated)
Number of tasks exceeds the system limit
Reserved attribute (tskatr is invalid or cannot be used), or the designated coprocessor
does not exist
Unsupported function (when TA USERSTACK or TA TASKSPACE is not supported)
Parameter error
Invalid resource ID (resid)
The designated coprocessor cannot be used (not installed, or abnormal operation detected)
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T-Kernel 1.B0.02