The following conditions are only checked for, and only return
errors if
CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS
is enabled (see the configuration option “Return Error Codes for Bad
Params”):
invalid tskid; less than 1 or greater than
CYGNUM_UITRON_TASKS
returns E_ID
wup_tsk()
,
sus_tsk()
,
rsm_tsk()
,
frsm_tsk()
on the calling task returns E_OBJ
dispatching is enabled in
tslp_tsk()
and
slp_tsk()
, or E_CTX
tmout must be positive, otherwise E_PAR
return value pointer in
can_wup()
is a valid pointer, or E_PAR
The following conditions are checked for, and can
return error codes, regardless of the setting of
CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS:
When create and delete functions
cre_tsk()
and
del_tsk()
are supported, all calls which use a valid task ID number check
that the task exists; if not, E_NOEXS is returned
sus_tsk()
: the task must not be dormant, else E_OBJ
frsm/rsm_tsk()
: the task must be suspended, else E_OBJ
tslp/slp_tsk()
: return codes E_TMOUT, E_RLWAI and E_DLT
are returned depending on the reason for terminating the sleep
wup_tsk()
and
can_wup()
: the task must not be dormant, or E_OBJ is returned
