コード例 #1
0
ファイル: HTFSave.c プロジェクト: svagionitis/libwww
/*	Save and Call Back
**	------------------
**	This stream works exactly like the HTSaveAndExecute
**	stream but in addition when EOF has been reached, it checks whether a
**	callback function has been associated with the request object in which
**	case, this callback is being called. This can be use by the
**	application to do some processing after the system command
**	has terminated. The callback function is called with the file name of
**	the temporary file as parameter.
*/
PUBLIC HTStream* HTSaveAndCallback (HTRequest *		request,
				    void *		param,
				    HTFormat		input_format,
				    HTFormat		output_format,
				    HTStream *		output_stream)
{
    HTStream * me = HTSaveAndExecute(request, param, input_format,
				     output_format, output_stream);
    if (me) {
	me->callback = HTRequest_callback(request);
	return me;
    }
    return HTErrorStream();
}
コード例 #2
0
ファイル: HTFormat.c プロジェクト: elgreg/ncsa-mosaic
/*		Create a filter stack
**		---------------------
**
**	If a wildcard match is made, a temporary HTPresentation
**	structure is made to hold the destination format while the
**	new stack is generated. This is just to pass the out format to
**	MIME so far.  Storing the format of a stream in the stream might
**	be a lot neater.
*/
PUBLIC HTStream * HTStreamStack ARGS5(
	HTFormat,		format_in,
	HTFormat,		rep_out,
        int,                    compressed,
	HTStream*,		sink,
	HTParentAnchor*,	anchor)
{
  HTAtom * wildcard = HTAtom_for("*");
  HTPresentation temp;

  /* Inherit force_dump_to_file from mo-www.c. */
  extern int force_dump_to_file;

#ifndef DISABLE_TRACE
  if (www2Trace) 
    fprintf(stderr,
            "[HTStreamStack] Constructing stream stack for %s to %s\n",
            HTAtom_name(format_in),	
            HTAtom_name(rep_out));
#endif
#ifndef DISABLE_TRACE
  if (www2Trace)
    fprintf (stderr,
             "               Compressed is %d\n", compressed);
#endif
    
  if (rep_out == WWW_SOURCE ||
      rep_out == format_in) 
    {
#ifndef DISABLE_TRACE
      if (www2Trace)
        fprintf (stderr,
                 "[HTStreamStack] rep_out == WWW_SOURCE | rep_out == format_in; returning sink\n");
#endif
      return sink;
    }
  
  if (!HTPresentations) 
    HTFormatInit();	/* set up the list */
  
  if (force_dump_to_file && format_in != WWW_MIME)
    {
      return HTSaveAndExecute (NULL, anchor, sink, format_in, compressed);
    }
  
  {
    int n = HTList_count(HTPresentations);
    int i;
    HTPresentation * pres;
    for(i=0; i<n; i++) 
      {
        pres = HTList_objectAt(HTPresentations, i);
#ifndef DISABLE_TRACE
        if (www2Trace)
          {
            fprintf (stderr, "HTFormat: looking at pres '%s'\n",
                     HTAtom_name (pres->rep));
            if (pres->command)
              fprintf (stderr, "HTFormat: pres->command is '%s'\n",
                       pres->command);
            else
              fprintf (stderr, "HTFormat: pres->command doesn't exist\n");
          }
#endif
        if (pres->rep == format_in ||
            partial_wildcard_matches (pres->rep, format_in))
          {
            if (pres->command && strstr (pres->command, "mosaic-internal-present"))
              {
#ifndef DISABLE_TRACE
                if (www2Trace)
                  fprintf (stderr, "[HTStreamStack] HEY HEY HEY caught internal-present\n");
#endif
                return HTPlainPresent (pres, anchor, sink, format_in, compressed);
              }
            if (pres->rep_out == rep_out)
              {
#ifndef DISABLE_TRACE
                if (www2Trace)
                  fprintf (stderr,
                           "[HTStreamStack] pres->rep_out == rep_out\n");
#endif
                return (*pres->converter)(pres, anchor, sink, format_in, compressed);
              }
            if (pres->rep_out == wildcard) 
              {
#ifndef DISABLE_TRACE
                if (www2Trace)
                  fprintf (stderr,
                           "[HTStreamStack] pres->rep_out == wildcard\n");
#endif
                temp = *pres;/* make temp conversion to needed fmt */
                temp.rep_out = rep_out;		/* yuk */
                return (*pres->converter)(&temp, anchor, sink, format_in, compressed);
              }
          }
      }
  }

#ifndef DISABLE_TRACE
  if (www2Trace)
    {
      fprintf (stderr, "[HTStreamStack] Returning NULL at bottom.\n");
    }
#endif
  
  return NULL;
}