[Commit-gnuradio] gr-howto-write-a-block ChangeLog doc/howto-writ...

[Eric Blossom]

CVSROOT:        /sources/gnuradio
Module name:    gr-howto-write-a-block
Changes by:     Eric Blossom <eb>       06/07/21 19:39:43

Modified files:
        .              : ChangeLog 
        doc            : howto-write-a-block.xml 

Log message:
        clarified 1:1 fixed rate vs i/o item size

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/gr-howto-write-a-block/ChangeLog?cvsroot=gnuradio&r1=1.6&r2=1.7
http://cvs.savannah.gnu.org/viewcvs/gr-howto-write-a-block/doc/howto-write-a-block.xml?cvsroot=gnuradio&r1=1.8&r2=1.9

Patches:
Index: ChangeLog
===================================================================
RCS file: /sources/gnuradio/gr-howto-write-a-block/ChangeLog,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -b -r1.6 -r1.7
--- ChangeLog   3 Jul 2005 05:53:22 -0000       1.6
+++ ChangeLog   21 Jul 2006 19:39:43 -0000      1.7
@@ -1,3 +1,8 @@
+2006-07-21  Eric Blossom  <address@hidden>
+
+       * doc/howto-write-a-block.xml: clarified 1:1 i/o relationship
+       versus size of input and output items.  Thanks Jens!
+
 2005-07-02  Eric Blossom  <address@hidden>
 
        * config/gr_no_undefined.m4, config/gr_x86_64.m4: new, x86_64 support.

Index: doc/howto-write-a-block.xml
===================================================================
RCS file: /sources/gnuradio/gr-howto-write-a-block/doc/howto-write-a-block.xml,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -b -r1.8 -r1.9
--- doc/howto-write-a-block.xml 3 Feb 2005 00:09:11 -0000       1.8
+++ doc/howto-write-a-block.xml 21 Jul 2006 19:39:43 -0000      1.9
@@ -49,6 +49,11 @@
   <date>2005-02-02</date>
   <revremark>Updated for SWIG 1.3.24</revremark>
   </revision>
+  <revision>
+  <revnumber>0.3</revnumber>
+  <date>2006-07-21</date>
+  <revremark>Clarification of 1:1 fixed rate vs item size</revremark>
+  </revision>
 </revhistory>
 
 <copyright>
@@ -700,7 +705,10 @@
 
 <para>The default implementation of <methodname>forecast</methodname>
 says there is a 1:1 relationship between noutput_items and the
-requirements for each input stream.
+requirements for each input stream.  The size of the items is defined by
+<classname>gr_io_signature</classname>s in the constructor of
+<classname>gr_block</classname>. The sizes of the input and output items
+can of course differ; this still qualifies as a 1:1 relationship.
 <programlisting>
   // default implementation:  1:1