event-rule: introduce event rule tracepoint

[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)
index 0000000..039b0a6
--- /dev/null
+++ b/include/lttng/event-rule/tracepoint-internal.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2019 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#ifndef LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H
+#define LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H
+
+#include <common/payload-view.h>
+#include <common/macros.h>
+#include <lttng/domain.h>
+#include <lttng/event-rule/event-rule-internal.h>
+#include <lttng/event-rule/tracepoint.h>
+#include <lttng/event.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 lttng_dynamic_pointer_array 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;
+       /* Includes terminator `\0`. */
+       uint32_t pattern_len;
+       /* Includes terminator `\0`. */
+       uint32_t filter_expression_len;
+       uint32_t exclusions_count;
+       uint32_t exclusions_len;
+       /*
+        * Payload is composed of, in that order:
+        *   - pattern (null terminated),
+        *   - filter expression (null terminated),
+        *   - exclusions (32 bit length + null terminated string).
+        */
+       char payload[];
+} LTTNG_PACKED;
+
+LTTNG_HIDDEN
+ssize_t lttng_event_rule_tracepoint_create_from_payload(
+               struct lttng_payload_view *view,
+               struct lttng_event_rule **rule);
+
+#endif /* LTTNG_EVENT_RULE_TRACEPOINT_INTERNAL_H */