Am 05.10.2017 um 22:44 schrieb Hui Yie Teh: > I'm trying to initialize bsdnetwork using > 'rtems_bsdnet_initialize_network()' as in the mghttpd example but it > doesn't work. > > It is giving me an error "Can't get network cluster memory". > > Any help would be much appreciated. > > Thanks. > > On 6 October 2017 at 08:46, Hui Yie Teh <hteh...@aucklanduni.ac.nz > <mailto:hteh...@aucklanduni.ac.nz>> wrote: > > Hi Christian, > > Thank you for the reply! > > My app will be doing some simple HTTP, with GET and POST requests > that has a text response body, e.g. "Received". I think following > the mghttpd test will suffice. > > However, I'm currently looking at the code for the mghttpd test and > I was wondering if there is a way I can run it or get a non-test > version of it? I can't really tell what I need or what the code does > without running it. > > Cheers. > > On 6 October 2017 at 07:47, Christian Mauderer <l...@c-mauderer.de > <mailto:l...@c-mauderer.de>> wrote: > > Am 05.10.2017 um 17:52 schrieb Hui Yie Teh: > > Hi, > > > > I am trying to build a HTTP client using RTEMS. Is there any > tutorials > > that I can follow? I already have a server running, and I just > need to > > send some GET and POST requests. > > > > I am new to RTEMS and embedded programming in general. Any > help is much > > appreciated. > > > > Cheers, > > Yie > > > > Hello Yie, > > it depends a little on your application. > > If you just want to learn a little about the HTTP protocol and > only want > to try some requests, you can just use a raw socket. The HTTP > basics are > really quite simple if you don't want to use things like > compression or > different MIME types. Writing a simple request for some simple html > document is quite easy. Something like that is done in the test > for the > mghttpd in RTEMS: > > > https://git.rtems.org/rtems/tree/testsuites/libtests/mghttpd01 > <https://git.rtems.org/rtems/tree/testsuites/libtests/mghttpd01> > > Note that there are most likely a lot of error cases that are > not caught > in that test (like unexpected HTTP responses). > > If you need your client for some more professional application or > something that should be more robust, I would suggest to use some > library that does most of the low level handling. I'm not aware > of one > integrated into RTEMS but it shouldn't be hard to find one that > works. > > I think that I have seen some client functions in civetweb (still > MIT-licensed fork of mongoose httpd which has been forked off > before the > license change in mongoose). From my experience, civetweb needs only > very few modifications to work with RTEMS. > > Most likely you can also (with some more effort) compile some > bigger C > or C++ libraries like libcurl. But I haven't tried that yet. By > the way: > there is also a large list of http client libraries on the libcurl > Homepage: https://curl.haxx.se/libcurl/competitors.html > <https://curl.haxx.se/libcurl/competitors.html> > > Regards > > Christian >
Hello Yie, you said in your initial mail that you already have a server running. Is that an RTEMS based server? In that case I would suggest to just use the initialization from that one. The "Can't get network cluster memory" is printed if a malloc for a cluster of mbufs fails in the initialization. A possible reason for that is that there isn't enough memory. On what platform are you working? How many RAM do you have? Regards Christian -- -------------------------------------------- embedded brains GmbH Christian Mauderer Dornierstr. 4 D-82178 Puchheim Germany email: christian.maude...@embedded-brains.de Phone: +49-89-18 94 741 - 18 Fax: +49-89-18 94 741 - 08 PGP: Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
