src/common/filter.h

   1 /*
   2  * Copyright 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License, version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with
  14  * this program; if not, write to the Free Software Foundation, Inc., 51
  15  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  16  */
  17
  18 #ifndef LTTNG_COMMON_FILTER_H
  19 #define LTTNG_COMMON_FILTER_H
  20
  21 #include <common/sessiond-comm/sessiond-comm.h>
  22
  23 struct bytecode_symbol_iterator;
  24
  25 /*
  26  * Create an iterator on a bytecode's symbols. The iterator points to the
  27  * first element after creation.
  28  */
  29 LTTNG_HIDDEN
  30 struct bytecode_symbol_iterator *bytecode_symbol_iterator_create(
  31                 struct lttng_filter_bytecode *bytecode);
  32
  33 /*
  34  * Advance iterator of one element.
  35  *
  36  * Returns 0 if a next element exists or a negative value at the end.
  37  */
  38 LTTNG_HIDDEN
  39 int bytecode_symbol_iterator_next(struct bytecode_symbol_iterator *it);
  40
  41 LTTNG_HIDDEN
  42 int bytecode_symbol_iterator_get_type(struct bytecode_symbol_iterator *it);
  43
  44 LTTNG_HIDDEN
  45 const char *bytecode_symbol_iterator_get_name(
  46                 struct bytecode_symbol_iterator *it);
  47
  48 LTTNG_HIDDEN
  49 void bytecode_symbol_iterator_destroy(struct bytecode_symbol_iterator *it);
  50
  51 #endif /* LTTNG_COMMON_FILTER_H */