Re: [xml] how to read and parse an xml from socket?

[Steve Yan <syan tbdnetworks com>]

Thanks, Eric :)

Good to know this so that I do not spend more time on the socket 
approach. Yes, I am switching to the xmlParseMemory approach.

Steve

Eric S. Eberhard wrote:
> Steve,
>
> I have never had good luck with parsing off a socket.  I find it much 
> easier to just read off the socket myself in to a memory area, and 
> then parse the memory area using xmlParseMemory
>
> Of course, if you read off the socket yourself make sure and look for 
> the end tag to speed things up.  And, of course, don't read past the 
> end tag ...
>
> Eric
>
>
>
> At 04:56 PM 1/22/2007, Steve Yan wrote:
> > Thanks a lot, Daniel.
> >
> > For windows, HANDLE (and SOCKET) are defined as void *. Since the
> > libxml2 takes fd (integer type) as its argument, I am using the
> > following function to get fd from HANDLE:
> >
> > int fd = _open_osfhandle((long)my_handle, O_RDONLY);
> >
> > However, when I call libxml2 function such as:
> >
> >     xmlTextReaderPtr  reader = xmlReaderForFd(fd, NULL, NULL,
> > XML_PARSE_COMPACT);
> >
> >     if (reader != NULL) {
> >         ret = xmlTextReaderRead(reader);
> >        .....................................................
> >     }
> >
> > xmlTextReaderRead(reader) returns -1, and I got the following error;
> >
> > I/O Error: Invalid argument
> > Entity:  line 1: parser error: Extra content at the end of document.
> >
> > BTW, the XML string is valid and no extra  content at its end.
> >
> > What is the problem? What to do to read xml from socket in windows?
> >
> > Steve
> >
> > Daniel Veillard wrote:
> > > On Sat, Jan 20, 2007 at 05:57:27PM -0800, Steve Yan wrote:
> > >
> > >> Hi,
> > >>
> > >> This may be a question asked by people before, but I could not 
> > find answer
> > >> from google.
> > >>
> > >
> > >   Bad excuse:
> > >     http://xmlsoft.org/docs.html
> > >
> > >
> > >> I am trying to read out and parse XML from a socket, which API 
> > should I
> > >> use? any sample code?
> > >>
> > >
> > >   There is multiple parsing APIs, tree, xmlReader or SAX, all of 
> > them can
> > > consume from a file descriptor, and you can build your own I/O 
> > handlers too.
> > >
> > >    http://xmlsoft.org/html/libxml-parser.html#xmlReadFd
> > >    http://xmlsoft.org/html/libxml-parser.html#xmlReadIO
> > > and
> > >    http://xmlsoft.org/xmlio.html
> > >
> > > Daniel
> > >
> > > P.S.: posting a completely unrelated message by replying to an 
> > existing
> > >       mail and changing the subject if fine if you understand you also
> > >       need to remove the In-Reply-To: and References: headers, 
> > otherwise
> > >       you just break mail threading of people using decent email 
> > clients...
> > >       Please don't do that !
> > >
> > >
> > _______________________________________________
> > xml mailing list, project page  http://xmlsoft.org/
> > xml gnome org
> > http://mail.gnome.org/mailman/listinfo/xml
>
>
> This email sent by:
>
> Eric S. Eberhard
> (928) 567-3727          Voice
> (928) 567-6122          Fax
> (928) 301-7537                           Cell
>
> For Metropolis support and VICS MBA Support!!!!
>
> http://www.vicsmba.com