What is the “purify cleanliness” autoconf option ?
This (unfinished) option allows the ORB to be configured to run in a slightly slower, but ‘cleaner’ mode. Purify is a tool that performs advanced memory debugging, and it will detect many common errors. Some of the things ORBit2 can do eg. using uninitialized stack space as a source of randomness will flag false positives as purify errors ( an Uninitialized Memory Read or UMR ). Enabling this flag ensures that all such memory will be blanked first before being read. This also applies to initializing return values before returning them, even on exceptions – a case where CORBA specifies an uninitialized return value. The performance impact of having a putify clean ORB is probably fairly minimal, perhaps ~10% slower max., finger in the air guestimation.
