T-Kernel Specification (1.B0.02)

4.10. SUBSYSTEM MANAGEMENT FUNCTIONS 205
tk def ssy
Define Subsystem
[C Language Interface]
ER ercd = tk_def_ssy ( ID ssid, T_DSSY *pk_dssy ) ;
[Parameters]
ID ssid Subsystem ID
T DSSY* pk dssy Subsystem definition information
pk dssy detail:
ATR ssyatr Subsystem attributes
PRI ssypri Subsystem priority
FP svchdr Extended SVC handler address
FP breakfn Break function address
FP startupfn Startup function address
FP cleanupfn Cleanup function address
FP eventfn Event handling function address
INT resblksz Resource control block size (in bytes)
(Other implementation-dependent parameters may be added beyond this point.)
[Return Parameters]
ER ercd Error code
[Error Codes]
E OK
E ID
E NOMEM
E RSATR
E PAR
E OBJ
E NOEXS
Normal completion
Invalid ID number (ssid is invalid or cannot be used)
Insufficient memory (memory for control block cannot be allocated)
Reserved attribute (svcatr is invalid or cannot be used)
Parameter error (pk dssy is invalid or cannot be used)
ssid is already defined (when pk dssy ≠ NULL)
ssid is not defined(when pk dssy = NULL)
[Description]
Defines subsystem ssid.
One subsystem ID must be assigned to one subsystem without overlapping with other subsystems. The
OS does not have a function for assigning these automatically.
Copyright c○ 2002, 2003 by T-Engine Forum
T-Kernel 1.B0.02