formats/ctf-text/types/variant.c

   1 /*
   2  * Common Trace Format
   3  *
   4  * Variant format access functions.
   5  *
   6  * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
   7  *
   8  * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   9  *
  10  * Permission is hereby granted, free of charge, to any person obtaining a copy
  11  * of this software and associated documentation files (the "Software"), to deal
  12  * in the Software without restriction, including without limitation the rights
  13  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  14  * copies of the Software, and to permit persons to whom the Software is
  15  * furnished to do so, subject to the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included in
  18  * all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  23  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  26  * SOFTWARE.
  27  */
  28
  29 #include <babeltrace/ctf-text/types.h>
  30 #include <stdio.h>
  31
  32 int ctf_text_variant_write(struct bt_stream_pos *ppos, struct bt_definition *definition)
  33 {
  34         struct ctf_text_stream_pos *pos = ctf_text_pos(ppos);
  35         int field_nr_saved;
  36         int ret;
  37
  38         if (!print_field(definition))
  39                 return 0;
  40
  41         if (!pos->dummy) {
  42                 if (pos->depth >= 0) {
  43                         if (pos->field_nr++ != 0)
  44                                 fprintf(pos->fp, ",");
  45                         fprintf(pos->fp, " ");
  46                         if (pos->print_names)
  47                                 fprintf(pos->fp, "%s = ",
  48                                         rem_(g_quark_to_string(definition->name)));
  49                         fprintf(pos->fp, "{");
  50                 }
  51                 pos->depth++;
  52         }
  53         field_nr_saved = pos->field_nr;
  54         pos->field_nr = 0;
  55         ret = bt_variant_rw(ppos, definition);
  56         if (!pos->dummy) {
  57                 pos->depth--;
  58                 if (pos->depth >= 0) {
  59                         fprintf(pos->fp, " }");
  60                 }
  61         }
  62         pos->field_nr = field_nr_saved;
  63         return ret;
  64 }