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><A
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><A
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NAME="COMPAT-UITRON-MEMORY-POOL-MGMT-FUNCTIONS">Memory pool Management Functions</H1
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NAME="COMPAT-UITRON-MEMORY-POOL-MGMT-FUNCTIONS">Memory pool Management Functions</H1
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><P
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><P
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>These functions are fully supported in this release: </P
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>These functions are fully supported in this release: </P
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><TABLE
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="PROGRAMLISTING"
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CLASS="PROGRAMLISTING"
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>ER <TT
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>ER <TT
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CLASS="FUNCTION"
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CLASS="FUNCTION"
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>get_blf</TT
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>get_blf</TT
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>(
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>(
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VP *<SPAN
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VP *<SPAN
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CLASS="emphasis"
|
CLASS="emphasis"
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><I
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><I
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CLASS="EMPHASIS"
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CLASS="EMPHASIS"
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>p_blf,</I
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>p_blf,</I
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></SPAN
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></SPAN
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> ID <SPAN
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> ID <SPAN
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CLASS="emphasis"
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CLASS="emphasis"
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><I
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><I
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CLASS="EMPHASIS"
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CLASS="EMPHASIS"
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>mpfid</I
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>mpfid</I
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></SPAN
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></SPAN
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> )</PRE
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> )</PRE
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></TD
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></TD
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="PROGRAMLISTING"
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CLASS="PROGRAMLISTING"
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>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>pget_blf</TT
|
>pget_blf</TT
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>(
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>(
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VP *<SPAN
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VP *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
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><I
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><I
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CLASS="EMPHASIS"
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CLASS="EMPHASIS"
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>p_blf,</I
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>p_blf,</I
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></SPAN
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></SPAN
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> ID <SPAN
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> ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
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><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mpfid</I
|
>mpfid</I
|
></SPAN
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></SPAN
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> )</PRE
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> )</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><TABLE
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><TABLE
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="PROGRAMLISTING"
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CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>tget_blf</TT
|
>tget_blf</TT
|
>(
|
>(
|
VP *<SPAN
|
VP *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>p_blf,</I
|
>p_blf,</I
|
></SPAN
|
></SPAN
|
> ID <SPAN
|
> ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mpfid,</I
|
>mpfid,</I
|
></SPAN
|
></SPAN
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> TMO <SPAN
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> TMO <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>tmout</I
|
>tmout</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><TABLE
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><TABLE
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BORDER="5"
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WIDTH="70%"
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WIDTH="70%"
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>rel_blf</TT
|
>rel_blf</TT
|
>(
|
>(
|
ID <SPAN
|
ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mpfid,</I
|
>mpfid,</I
|
></SPAN
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></SPAN
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> VP <SPAN
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> VP <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
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><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>blf</I
|
>blf</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
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></TD
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></TD
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></TR
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></TR
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></TABLE
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></TABLE
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><TABLE
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><TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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WIDTH="70%"
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><TR
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><TR
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><TD
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><TD
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><PRE
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><PRE
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CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>ref_mpf</TT
|
>ref_mpf</TT
|
>(
|
>(
|
T_RMPF *<SPAN
|
T_RMPF *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>pk_rmpf,</I
|
>pk_rmpf,</I
|
></SPAN
|
></SPAN
|
> ID <SPAN
|
> ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mpfid</I
|
>mpfid</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
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></TABLE
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></TABLE
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><TABLE
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><TABLE
|
BORDER="5"
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BORDER="5"
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BGCOLOR="#E0E0F0"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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WIDTH="70%"
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><TR
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><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>get_blk</TT
|
>get_blk</TT
|
>(
|
>(
|
VP *<SPAN
|
VP *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>p_blk,</I
|
>p_blk,</I
|
></SPAN
|
></SPAN
|
> ID <SPAN
|
> ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mplid,</I
|
>mplid,</I
|
></SPAN
|
></SPAN
|
> INT <SPAN
|
> INT <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>blksz</I
|
>blksz</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>pget_blk</TT
|
>pget_blk</TT
|
>(
|
>(
|
VP *<SPAN
|
VP *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>p_blk,</I
|
>p_blk,</I
|
></SPAN
|
></SPAN
|
> ID <SPAN
|
> ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mplid,</I
|
>mplid,</I
|
></SPAN
|
></SPAN
|
> INT <SPAN
|
> INT <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>blksz</I
|
>blksz</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
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><TABLE
|
><TABLE
|
BORDER="5"
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|
BGCOLOR="#E0E0F0"
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WIDTH="70%"
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WIDTH="70%"
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><TR
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><TR
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><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>tget_blk</TT
|
>tget_blk</TT
|
>(
|
>(
|
VP *<SPAN
|
VP *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>p_blk,</I
|
>p_blk,</I
|
></SPAN
|
></SPAN
|
> ID <SPAN
|
> ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mplid,</I
|
>mplid,</I
|
></SPAN
|
></SPAN
|
> INT <SPAN
|
> INT <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>blksz,</I
|
>blksz,</I
|
></SPAN
|
></SPAN
|
> TMO <SPAN
|
> TMO <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>tmout</I
|
>tmout</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
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></TABLE
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></TABLE
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><TABLE
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><TABLE
|
BORDER="5"
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BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
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><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>rel_blk</TT
|
>rel_blk</TT
|
>(
|
>(
|
ID <SPAN
|
ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mplid,</I
|
>mplid,</I
|
></SPAN
|
></SPAN
|
> VP <SPAN
|
> VP <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>blk</I
|
>blk</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
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><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
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><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>ref_mpl</TT
|
>ref_mpl</TT
|
>(
|
>(
|
T_RMPL *<SPAN
|
T_RMPL *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>pk_rmpl,</I
|
>pk_rmpl,</I
|
></SPAN
|
></SPAN
|
> ID <SPAN
|
> ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mplid )</I
|
>mplid )</I
|
></SPAN
|
></SPAN
|
></PRE
|
></PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>Note that of the memory provided for a particular pool to
|
>Note that of the memory provided for a particular pool to
|
manage in the static initialization of the memory pool objects,
|
manage in the static initialization of the memory pool objects,
|
some memory will be used to manage the pool itself. Therefore the
|
some memory will be used to manage the pool itself. Therefore the
|
number of blocks * the blocksize will be less than the total
|
number of blocks * the blocksize will be less than the total
|
memory size. </P
|
memory size. </P
|
><P
|
><P
|
>The following functions are supported in this release, when
|
>The following functions are supported in this release, when
|
enabled with
|
enabled with
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYGPKG_UITRON_MEMPOOLVAR_CREATE_DELETE</TT
|
>CYGPKG_UITRON_MEMPOOLVAR_CREATE_DELETE</TT
|
>
|
>
|
or
|
or
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYGPKG_UITRON_MEMPOOLFIXED_CREATE_DELETE</TT
|
>CYGPKG_UITRON_MEMPOOLFIXED_CREATE_DELETE</TT
|
>
|
>
|
as appropriate, with some restrictions: </P
|
as appropriate, with some restrictions: </P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_mpl</TT
|
>cre_mpl</TT
|
>(
|
>(
|
ID <SPAN
|
ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mplid,</I
|
>mplid,</I
|
></SPAN
|
></SPAN
|
> T_CMPL *<SPAN
|
> T_CMPL *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>pk_cmpl</I
|
>pk_cmpl</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>del_mpl</TT
|
>del_mpl</TT
|
>(
|
>(
|
ID <SPAN
|
ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mplid</I
|
>mplid</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_mpf</TT
|
>cre_mpf</TT
|
>(
|
>(
|
ID <SPAN
|
ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mpfid,</I
|
>mpfid,</I
|
></SPAN
|
></SPAN
|
> T_CMPF *<SPAN
|
> T_CMPF *<SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>pk_cmpf</I
|
>pk_cmpf</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>ER <TT
|
>ER <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>del_mpf</TT
|
>del_mpf</TT
|
>(
|
>(
|
ID <SPAN
|
ID <SPAN
|
CLASS="emphasis"
|
CLASS="emphasis"
|
><I
|
><I
|
CLASS="EMPHASIS"
|
CLASS="EMPHASIS"
|
>mpfid</I
|
>mpfid</I
|
></SPAN
|
></SPAN
|
> )</PRE
|
> )</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>Because of the static initialization facilities provided for
|
>Because of the static initialization facilities provided for
|
system objects, a memory pool is allocated a region of memory to
|
system objects, a memory pool is allocated a region of memory to
|
manage statically in the configuration. So while memory pools can
|
manage statically in the configuration. So while memory pools can
|
be created and deleted, the same area of memory is used for that
|
be created and deleted, the same area of memory is used for that
|
memory pool (memory pool ID number) each time. The requested variable pool
|
memory pool (memory pool ID number) each time. The requested variable pool
|
size (pk_cmpl->mplsz) or the number of fixed-size
|
size (pk_cmpl->mplsz) or the number of fixed-size
|
blocks (pk_cmpf->mpfcnt) times the block size
|
blocks (pk_cmpf->mpfcnt) times the block size
|
(pk_cmpf->blfsz) are checked for fitting within
|
(pk_cmpf->blfsz) are checked for fitting within
|
the statically allocated memory area, so if a create call succeeds,
|
the statically allocated memory area, so if a create call succeeds,
|
the resulting pool will be at least as large as that requested.
|
the resulting pool will be at least as large as that requested.
|
For this reason <TT
|
For this reason <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>del_mpl()</TT
|
>del_mpl()</TT
|
> and <TT
|
> and <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>del_mpf()</TT
|
>del_mpf()</TT
|
> do
|
> do
|
not in any sense free the memory that was managed by the deleted
|
not in any sense free the memory that was managed by the deleted
|
pool for use by other pools; it may only be managed by a pool of
|
pool for use by other pools; it may only be managed by a pool of
|
the same object id. </P
|
the same object id. </P
|
><P
|
><P
|
>For both fixed and variable memory pools, the queueing order
|
>For both fixed and variable memory pools, the queueing order
|
when waiting on a synchronization object depends on the underlying
|
when waiting on a synchronization object depends on the underlying
|
kernel configuration. The multi-level queue scheduler is required
|
kernel configuration. The multi-level queue scheduler is required
|
for strict µITRON conformance and
|
for strict µITRON conformance and
|
it queues tasks in FIFO order, so requests to create an object with
|
it queues tasks in FIFO order, so requests to create an object with
|
priority queueing of tasks (pk_cxxx->xxxatr = TA_TPRI)
|
priority queueing of tasks (pk_cxxx->xxxatr = TA_TPRI)
|
are rejected with E_RSATR. Additional undefined bits in
|
are rejected with E_RSATR. Additional undefined bits in
|
the attributes fields must be zero. </P
|
the attributes fields must be zero. </P
|
><P
|
><P
|
>In general, extended information (pk_cxxx->exinf)
|
>In general, extended information (pk_cxxx->exinf)
|
is ignored. </P
|
is ignored. </P
|
><DIV
|
><DIV
|
CLASS="SECT2"
|
CLASS="SECT2"
|
><H2
|
><H2
|
CLASS="SECT2"
|
CLASS="SECT2"
|
><A
|
><A
|
NAME="AEN13913">Error checking</H2
|
NAME="AEN13913">Error checking</H2
|
><P
|
><P
|
>The following conditions are only checked for, and only return
|
>The following conditions are only checked for, and only return
|
errors if
|
errors if
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS</TT
|
>CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS</TT
|
>
|
>
|
is enabled:</P
|
is enabled:</P
|
><P
|
><P
|
></P
|
></P
|
><UL
|
><UL
|
><LI
|
><LI
|
><P
|
><P
|
>invalid object id; less than 1 or greater than
|
>invalid object id; less than 1 or greater than
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYGNUM_UITRON_MEMPOOLVAR/MEMPOOLFIXED</TT
|
>CYGNUM_UITRON_MEMPOOLVAR/MEMPOOLFIXED</TT
|
>
|
>
|
as appropriate returns E_ID</P
|
as appropriate returns E_ID</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>dispatching is enabled in any call which can sleep, or
|
>dispatching is enabled in any call which can sleep, or
|
E_CTX</P
|
E_CTX</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>tmout must be positive, otherwise E_PAR</P
|
>tmout must be positive, otherwise E_PAR</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>pk_cxxx pointers in
|
>pk_cxxx pointers in
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_xxx()</TT
|
>cre_xxx()</TT
|
>
|
>
|
must be valid pointers, or E_PAR</P
|
must be valid pointers, or E_PAR</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>return value pointer in
|
>return value pointer in
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>ref_xxx()</TT
|
>ref_xxx()</TT
|
>
|
>
|
is a valid pointer, or E_PAR</P
|
is a valid pointer, or E_PAR</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>return value pointers in get block routines is a valid
|
>return value pointers in get block routines is a valid
|
pointer, or E_PAR</P
|
pointer, or E_PAR</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>blocksize request in get variable block routines is greater
|
>blocksize request in get variable block routines is greater
|
than zero, or E_PAR</P
|
than zero, or E_PAR</P
|
></LI
|
></LI
|
></UL
|
></UL
|
><P
|
><P
|
>The following conditions are checked for, and can return error
|
>The following conditions are checked for, and can return error
|
codes, regardless of the setting of
|
codes, regardless of the setting of
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS</TT
|
>CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS</TT
|
>:</P
|
>:</P
|
><P
|
><P
|
></P
|
></P
|
><UL
|
><UL
|
><LI
|
><LI
|
><P
|
><P
|
>When create and delete functions
|
>When create and delete functions
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_xxx()</TT
|
>cre_xxx()</TT
|
>
|
>
|
and
|
and
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>del_xxx()</TT
|
>del_xxx()</TT
|
>
|
>
|
are supported, all calls which use a valid object ID number check
|
are supported, all calls which use a valid object ID number check
|
that the object exists. If not, E_NOEXS is returned.</P
|
that the object exists. If not, E_NOEXS is returned.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>When create functions
|
>When create functions
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_xxx()</TT
|
>cre_xxx()</TT
|
>
|
>
|
are supported, if the object already exists, then E_OBJ</P
|
are supported, if the object already exists, then E_OBJ</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>In any call which can sleep, such as
|
>In any call which can sleep, such as
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>get_blk()</TT
|
>get_blk()</TT
|
>
|
>
|
: return codes E_TMOUT, E_RLWAI, E_DLT
|
: return codes E_TMOUT, E_RLWAI, E_DLT
|
or of course E_OK are returned depending on the reason
|
or of course E_OK are returned depending on the reason
|
for terminating the sleep</P
|
for terminating the sleep</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>In polling functions such as
|
>In polling functions such as
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>pget_blk()</TT
|
>pget_blk()</TT
|
>
|
>
|
return codes E_TMOUT or E_OK are returned depending
|
return codes E_TMOUT or E_OK are returned depending
|
on the state of the synchronization object</P
|
on the state of the synchronization object</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>In creation functions, the attributes must be compatible
|
>In creation functions, the attributes must be compatible
|
with the selected underlying kernel configuration: in
|
with the selected underlying kernel configuration: in
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_mpl()</TT
|
>cre_mpl()</TT
|
>
|
>
|
|
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>pk_cmpl->mplatr</TT
|
>pk_cmpl->mplatr</TT
|
>
|
>
|
must be equal to
|
must be equal to
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>TA_TFIFO</TT
|
>TA_TFIFO</TT
|
>
|
>
|
else E_RSATR.</P
|
else E_RSATR.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>In
|
>In
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_mpf()</TT
|
>cre_mpf()</TT
|
>
|
>
|
|
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>pk_cmpf->mpfatr</TT
|
>pk_cmpf->mpfatr</TT
|
>
|
>
|
must be equal to
|
must be equal to
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>TA_TFIFO</TT
|
>TA_TFIFO</TT
|
>
|
>
|
else E_RSATR.</P
|
else E_RSATR.</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>In creation functions, the requested size of the memory
|
>In creation functions, the requested size of the memory
|
pool must not be larger than that statically configured for the
|
pool must not be larger than that statically configured for the
|
pool else E_RSATR; see the configuration option
|
pool else E_RSATR; see the configuration option
|
“Option: Static initializers”.
|
“Option: Static initializers”.
|
In
|
In
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_mpl()</TT
|
>cre_mpl()</TT
|
>
|
>
|
|
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>pk_cmpl->mplsz</TT
|
>pk_cmpl->mplsz</TT
|
>
|
>
|
is the field of interest</P
|
is the field of interest</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>In
|
>In
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cre_mpf()</TT
|
>cre_mpf()</TT
|
>
|
>
|
the product of
|
the product of
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>pk_cmpf->blfsz</TT
|
>pk_cmpf->blfsz</TT
|
>
|
>
|
and
|
and
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>pk_cmpf->mpfcnt</TT
|
>pk_cmpf->mpfcnt</TT
|
>
|
>
|
must be smaller than the memory statically configured for the pool
|
must be smaller than the memory statically configured for the pool
|
else E_RSATR</P
|
else E_RSATR</P
|
></LI
|
></LI
|
><LI
|
><LI
|
><P
|
><P
|
>In functions which return memory to the pool
|
>In functions which return memory to the pool
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>rel_blk()</TT
|
>rel_blk()</TT
|
>
|
>
|
and
|
and
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>rel_blf()</TT
|
>rel_blf()</TT
|
>
|
>
|
, if the free fails, for example because the memory did not come
|
, if the free fails, for example because the memory did not come
|
from that pool originally, then E_PAR is returned</P
|
from that pool originally, then E_PAR is returned</P
|
></LI
|
></LI
|
></UL
|
></UL
|
></DIV
|
></DIV
|
></DIV
|
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|
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|
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