Re: Difference between 4.12 and 6.0 frontend tools

In article <Pfezkq4b9$6Q075yn@kcbbs.gen.nz> kerry@kcbbs.gen.nz (Kerry Sainsbury) writes: >The 6.0x tools are just 4.1x tools compiled to use the new communications "just", says he. If he ONLY knew how much this really took to pull off... several of us are facing decades of therapy for the resulting damage... \\-: At a *feature level*, things didn't change that much (for example, we didn't add full 5.X/6.X engine details and direct SPL support); shared memory implementation for c4gl is one new faeture that comes to mind (but that's also in 4.13 too). In the internals, and in the compilation system, a LOT changed. >routines used in the 6+ engines. Pre 6.0 engines communicated via pipes, >while post 6.0 engines communicate via semaphores (which are apparently >faster). Well, *shared memory* semaphores. Not tiny little guys with tinier little flags... >It's possible to use 4.1x tools against 6+ engines, just you have to use >a thing called a "Relay Module" which translates from the pipe-based >communications to the semaphore method. This slows things down a bit. Plus, if moving to 7.X is in your near future, I don't think 4.1X tools to 7.1X servers is a supported configuration, technically speaking... >Regards, >Kerry S >--------------------------------------,------------------------------------- >Kerry Sainsbury, kerry@kcbbs.gen.nz | THE INFORMIX FAQ >Quanta Systems, Auckland, New Zealand | kcbbs.gen.nz:/informix/* > | mathcs.emory.edu:/pub/informix/faq/* >+64 9 377-4473 (work) 276-5546 (home) | quasar.ucar.edu:/? If it's winter solstice here and summer solstice there, what is it on the equator??? -- Alan Denney aland@informix.com {pyramid|uunet}!infmx!aland "We have a great holiday tradition in our family: we get together and psychologically abuse each other until one of us has a seizure. And then we have pie." -- Mark Roberts