Thanks for the responses. Yes, we are saving a 100+ MB data file to disk, and when the free memory gets to be under 100 MB, saving to a standard hard drive (not SSD) sometimes ends up taking a very long time (in Mac OS X), making it appear to the user that the program has locked up. We have contemplated going about this a different way, but the quickest fix for us at the moment is to catch low memory situations.
Mark: Yes, we need to know the amount of free ram (without counting the swap/inactive memory). Gabe Johnson gwj...@gmail.com 603-978-9881 On Sun, Feb 23, 2014 at 9:09 PM, Mark Wieder <mwie...@ahsoftware.net> wrote: > Gabriel- > > Thursday, February 20, 2014, 11:07:59 AM, you wrote: > > > Hey All, > > > I am working on a program where I need to know the amount of available > > memory. > > > I'm running on OS X and hasMemory() appears to return true/false for the > > same values regardless changes to free/available memory. Is there some > > trick to getting hasMemory() to correspond with the actual available > > memory? Is this possibly something that is being addressed in newer > > versions of LiveCode? > > Ah, the curse of modern operating systems... > > What the hasMemory() function does is allocate and then free the > specified amount of memory, and then returns a boolean telling whether > it was successful. However, before doing that, it casts the desired > amount as a uint4, which limits the amount to 2147483647. If you're > trying to see if more than 2G of memory is available, that won't help. > And because modern operating systems will very happily exchange chunks > of memory out to swap files when necessary, it's unlikely that you'll > see the malloc fail, and thus you should see a "true" return value. > > Are you doing something where you really need to see the actual free > ram without the swap/inactive memory? The "available" term here is a > bit ambiguous, and depends on your needs. > > -- > -Mark Wieder > ahsoftw...@gmail.com > > This communication may be unlawfully collected and stored by the National > Security Agency (NSA) in secret. The parties to this email do not > consent to the retrieving or storing of this communication and any > related metadata, as well as printing, copying, re-transmitting, > disseminating, or otherwise using it. If you believe you have received > this communication in error, please delete it immediately. > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
