Hi Christian, No, it's not an RTEMS based server. I have a simple server running on python.
I am emulating the LM3S6965 ARM board on Qemu, and I think it has 64kB of RAM? On 6 October 2017 at 19:52, Christian Mauderer < christian.maude...@embedded-brains.de> wrote: > > 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. >
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