SoW-2019-0002: Dynamic Snapshot

[lttng-tools.git] / include / lttng / event-rule / tracepoint-internal.h

diff --git a/include/lttng/event-rule/tracepoint-internal.h b/include/lttng/event-rule/tracepoint-internal.h
new file mode 100644 (file)
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--- /dev/null
+++ b/include/lttng/event-rule/tracepoint-internal.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2019 - Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License, version 2.1 only,
+ * as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H
+#define LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H
+
+#include <lttng/event-rule/tracepoint.h>
+#include <lttng/event-rule/event-rule-internal.h>
+#include <lttng/domain.h>
+#include <lttng/event.h>
+#include <common/buffer-view.h>
+#include <common/macros.h>
+
+struct lttng_event_rule_tracepoint {
+       struct lttng_event_rule parent;
+
+       /* Domain */
+       enum lttng_domain_type domain;
+
+       /* Name pattern */
+       char *pattern;
+
+       /* Filter */
+       char *filter_expression;
+
+       /* Loglevel */
+       struct {
+               enum lttng_loglevel_type type;
+               int value;
+       } loglevel;
+
+       /* Exclusions */
+
+       struct {
+               char **values;
+               unsigned int count;
+       } exclusions;
+
+       /* internal use only */
+       struct {
+               char *filter;
+               struct lttng_filter_bytecode *bytecode;
+       } internal_filter;
+};
+
+struct lttng_event_rule_tracepoint_comm {
+       /* enum lttng_domain_type */
+       int8_t domain_type;
+       /* enum lttng_event_logleven_type */
+       int8_t loglevel_type;
+       int32_t loglevel_value;
+       uint32_t pattern_len;
+       uint32_t filter_expression_len;
+       uint32_t exclusions_count;
+       uint32_t exclusions_len;
+       /*
+        * pattern, filter expression and exclusions each terminating with '\0'
+        */
+       char payload[];
+} LTTNG_PACKED;
+
+LTTNG_HIDDEN
+ssize_t lttng_event_rule_tracepoint_create_from_buffer(
+               const struct lttng_buffer_view *view,
+               struct lttng_event_rule **rule);
+
+#endif /* LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H */