include/lttng/event-rule/tracepoint-internal.h

   1 /*
   2  * Copyright (C) 2019 - Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
   3  *
   4  * This library is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU Lesser General Public License, version 2.1 only,
   6  * as published by the Free Software Foundation.
   7  *
   8  * This library 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 Lesser General Public License
  11  * for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this library; if not, write to the Free Software Foundation,
  15  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  16  */
  17
  18 #ifndef LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H
  19 #define LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H
  20
  21 #include <lttng/event-rule/tracepoint.h>
  22 #include <lttng/event-rule/event-rule-internal.h>
  23 #include <lttng/domain.h>
  24 #include <lttng/event.h>
  25 #include <common/buffer-view.h>
  26 #include <common/macros.h>
  27
  28 struct lttng_event_rule_tracepoint {
  29         struct lttng_event_rule parent;
  30
  31         /* Domain */
  32         enum lttng_domain_type domain;
  33
  34         /* Name pattern */
  35         char *pattern;
  36
  37         /* Filter */
  38         char *filter_expression;
  39
  40         /* Loglevel */
  41         struct {
  42                 enum lttng_loglevel_type type;
  43                 int value;
  44         } loglevel;
  45
  46         /* Exclusions */
  47
  48         struct {
  49                 char **values;
  50                 unsigned int count;
  51         } exclusions;
  52
  53         /* internal use only */
  54         struct {
  55                 char *filter;
  56                 struct lttng_filter_bytecode *bytecode;
  57         } internal_filter;
  58 };
  59
  60 struct lttng_event_rule_tracepoint_comm {
  61         /* enum lttng_domain_type */
  62         int8_t domain_type;
  63         /* enum lttng_event_logleven_type */
  64         int8_t loglevel_type;
  65         int32_t loglevel_value;
  66         uint32_t pattern_len;
  67         uint32_t filter_expression_len;
  68         uint32_t exclusions_count;
  69         uint32_t exclusions_len;
  70         /*
  71          * pattern, filter expression and exclusions each terminating with '\0'
  72          */
  73         char payload[];
  74 } LTTNG_PACKED;
  75
  76 LTTNG_HIDDEN
  77 ssize_t lttng_event_rule_tracepoint_create_from_buffer(
  78                 const struct lttng_buffer_view *view,
  79                 struct lttng_event_rule **rule);
  80
  81 #endif /* LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H */