Used the correct value in table_create_alloc and remove unused
parameter. Use the pre-calculated end pointer when looking for events.
Always use the column count of the TABLE_MAP event as all mismatches are
detected earlier.
When a table map event is read after an alter table, the old TABLE_MAP
object contains old information. Due to this, as well as the added benefit
of making the code easier to read, the recycling of TABLE_MAP objects was
removed. In practice, there were no benefits to re-mapping the tables to a
different ID.
If the binlog has binlog checksums enabled, the extra checksum bytes are
removed from the end of the event. The avrorouter assumes that whatever
caused the binlogs to appear in the first place already checked that the
checksums are OK.
Also removed one extra byte being added to the length of all query events.
All modules now declare a name for the module. This is name is added as a
prefix to all messages logged by a module. The prefix should help
determine which part of the system logs a message.
Currently, when the avrorouter finishes reading a binlog file or when a
certain number of rows or transactions is reached, it will flush all
tables to disk. This is quite slow as events can easily be written faster
into the binlog than they can be processed by avrorouter.
A solution to this would be to only sync the tables (close the Avro block)
instead of flushing them to disk. This would allow more efficient
processing of the files while still retaining the safe shutdown that
flushing offers.
