Commits on Mar 9, 2020

1. Fix #32: Consolidate SCH_LAB globals into struct …

   Creating a single struct for the SCH_LAB globals adds namespace
   protection and is consistent with the way other CFE modules do this.

   

   jphickey authored and astrogeco committed Mar 9, 2020
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2. Fix #31: Add alignment union to command buffers …

   Use a union type to allocate the message buffers to ensure
   it is aligned properly for a CFE_SB_Msg_t type.

   

   jphickey authored and astrogeco committed Mar 9, 2020
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3. Fix #27: Improve table handling …

   Simplify the SCH_LAB table definition:
   
   - Do not use "aux_source_directory" which will also pull in the table
     file (table file should not be built w/source)
   - Make an "entry" structure that only has the MessagID and Rate/Period
   - Put runtime data (count) in a runtime struct, not the table
   - Popluate the runtime config from the table and then release the table
   - Delete the validation function - not used here - example should be
     in the sample_app.
   - No need to use "END_OF_TABLE" marker - tables are always fixed length
     and a rate of "0" is sufficient to identify an unconfigured entry.
   - Make no attempt to deal with live table updates.  SCH_LAB app can be
     restarted if the config table changes.

   

   jphickey authored and astrogeco committed Mar 9, 2020
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