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>Task-Dependent Synchronization Functions</TITLE
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><H1
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><A
NAME="COMPAT-UITRON-TASK-DEPENDENT-SYNCH-FUNCTIONS">Task-Dependent Synchronization Functions</H1
><P
>These functions are fully supported in this release: </P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>ER <TT
CLASS="FUNCTION"
>sus_tsk</TT
>(
ID <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>tskid</I
></SPAN
> )</PRE
></TD
></TR
></TABLE
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>ER <TT
CLASS="FUNCTION"
>rsm_tsk</TT
>(
ID <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>tskid</I
></SPAN
> )</PRE
></TD
></TR
></TABLE
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>ER <TT
CLASS="FUNCTION"
>frsm_tsk</TT
>(
ID <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>tskid</I
></SPAN
> )</PRE
></TD
></TR
></TABLE
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>ER <TT
CLASS="FUNCTION"
>slp_tsk</TT
>( void )</PRE
></TD
></TR
></TABLE
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>ER <TT
CLASS="FUNCTION"
>tslp_tsk</TT
>(
TMO <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>tmout</I
></SPAN
> )</PRE
></TD
></TR
></TABLE
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>ER <TT
CLASS="FUNCTION"
>wup_tsk</TT
>(
ID <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>tskid</I
></SPAN
> )</PRE
></TD
></TR
></TABLE
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>ER <TT
CLASS="FUNCTION"
>can_wup</TT
>(
INT *<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>p_wupcnt,</I
></SPAN
> ID <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>tskid</I
></SPAN
> )</PRE
></TD
></TR
></TABLE
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN13571">Error checking</H2
><P
>The following conditions are only checked for, and only return
errors if
<TT
CLASS="LITERAL"
>CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS</TT
>
is enabled (see the configuration option “Return Error Codes for Bad
Params”):</P
><P
></P
><UL
><LI
><P
>invalid tskid; less than 1 or greater than
<TT
CLASS="LITERAL"
>CYGNUM_UITRON_TASKS</TT
>
returns E_ID</P
></LI
><LI
><P
><TT
CLASS="FUNCTION"
>wup_tsk()</TT
>
,
<TT
CLASS="FUNCTION"
>sus_tsk()</TT
>
,
<TT
CLASS="FUNCTION"
>rsm_tsk()</TT
>
,
<TT
CLASS="FUNCTION"
>frsm_tsk()</TT
>
on the calling task returns E_OBJ</P
></LI
><LI
><P
>dispatching is enabled in
<TT
CLASS="FUNCTION"
>tslp_tsk()</TT
>
and
<TT
CLASS="FUNCTION"
>slp_tsk()</TT
>
, or E_CTX</P
></LI
><LI
><P
>tmout must be positive, otherwise E_PAR</P
></LI
><LI
><P
>return value pointer in
<TT
CLASS="FUNCTION"
>can_wup()</TT
>
is a valid pointer, or E_PAR</P
></LI
></UL
><P
>The following conditions are checked for, and can
return error codes, regardless of the setting of
<TT
CLASS="LITERAL"
>CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS</TT
>:</P
><P
></P
><UL
><LI
><P
>When create and delete functions
<TT
CLASS="FUNCTION"
>cre_tsk()</TT
>
and
<TT
CLASS="FUNCTION"
>del_tsk()</TT
>
are supported, all calls which use a valid task ID number check
that the task exists; if not, E_NOEXS is returned</P
></LI
><LI
><P
><TT
CLASS="FUNCTION"
>sus_tsk()</TT
>
: the task must not be dormant, else E_OBJ</P
></LI
><LI
><P
><TT
CLASS="FUNCTION"
>frsm/rsm_tsk()</TT
>
: the task must be suspended, else E_OBJ</P
></LI
><LI
><P
><TT
CLASS="FUNCTION"
>tslp/slp_tsk()</TT
>
: return codes E_TMOUT, E_RLWAI and E_DLT
are returned depending on the reason for terminating the sleep</P
></LI
><LI
><P
><TT
CLASS="FUNCTION"
>wup_tsk()</TT
>
and
<TT
CLASS="FUNCTION"
>can_wup()</TT
>
: the task must not be dormant, or E_OBJ is returned</P
></LI
></UL
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