Hey John, 2008/8/21 John Giordano <[EMAIL PROTECTED]>: > I want to try and use this library in an embedded environment. > > My Coldfire 32-bit V2 processor board has 512K bytes of flash and 2MB of > ram.
This platform is probably too limited to run a decent Wt application. I am not entirely sure, since the specs are borderline for a minimum hello world application. We have not used Wt before on a platform with less than 8MB of ram. Those were however platforms running a stock embedded Linux, which already takes quite some resources itself. Perhaps the bigger problem is flash. I'm not sure how much flash is already been used by other applications, but a minimum sized hello world, that is linked dynamically only against libc and libstdc++, takes 300KB. It runs well on a 200MHz ARM processor, which is the slowest device we tested on so far. I guess anything more than 100MHz should be acceptible. You need to take into account that as your application size increases, you are likely to use more widgets, which also results in a bigger library (next to a bigger application). > Is there a way I can easily remove support I don't need. > > What comes to mind offhand is the support for wide characters and Unicode. > > Maybe I can strip out the std::wstring support. > > Is there an easy way to make the library lean and mean? You can easily: - remove SSL cmake config: -DHTTP_WITH_SSL=OFF - remove compression cmake config: -DHTTP_WITH_ZLIB=OFF - remove boost regex if you have GNU regex: compile flag -DHAVE_GNU_REGEX - remove boost spirit: compile flag -DNO_SPIRIT Can you get boost built for the platform ? In principle, you can also get rid of wide chars (std::wstring). We have done some work for this, but the patch is not up to date with the latest releases of Wt, and, not integrated. This was initially developed to support a uClibc without wide char support. > When this library was designed, did the designer/developer have embedded > systems in mind? We have spent alot of effort to make Wt work well on embedded linux, with respect to code size, memory usage, and run-time performance. Obviously, the embedded sytem market is very diverse in architecture capabilities, and Wt is not suitable for very small devices. > Has this library ever been used on anything else besides Linux and > Windows? Next to Linux and Windows: - Mac OS X using the GNU compiler - Solaris using the Sun Studio 12 compiler - AIX 5.3 using the Visual Age 9 compiler - HP-UX PARISC using the GNU compiler > I don't want to spend a lot of effort getting a clean build only to find > out that I don't have enough memory or horsepower to run. I am afraid that without substantial effort in trying to further downsize the library, it is not straightforward to fit Wt with some application on your platform. On the other hand we (emweb) would certainly be interested in seeing what it takes to make Wt fit well! I hope this answers some of your questions? Regards, koen ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ witty-interest mailing list witty-interest@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/witty-interest
