Add client notification API

[lttng-tools.git] / include / lttng / condition / buffer-usage.h

diff --git a/include/lttng/condition/buffer-usage.h b/include/lttng/condition/buffer-usage.h
new file mode 100644 (file)
index 0000000..1463ef8
--- /dev/null
+++ b/include/lttng/condition/buffer-usage.h
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@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_CONDITION_BUFFER_USAGE_H
+#define LTTNG_CONDITION_BUFFER_USAGE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct lttng_condition;
+struct lttng_evaluation;
+
+extern struct lttng_condition *
+lttng_condition_buffer_usage_low_create(void);
+
+extern struct lttng_condition *
+lttng_condition_buffer_usage_high_create(void);
+
+/* threshold_ratio expressed as [0.0, 1.0]. */
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_get_threshold_ratio(
+               const struct lttng_condition *condition,
+               double *threshold_ratio);
+
+/* threshold_ratio expressed as [0.0, 1.0]. */
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_set_threshold_ratio(
+               struct lttng_condition *condition,
+               double threshold_ratio);
+
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_get_threshold(
+               const struct lttng_condition *condition,
+               uint64_t *threshold_bytes);
+
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_set_threshold(
+               struct lttng_condition *condition,
+               uint64_t threshold_bytes);
+
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_get_session_name(
+               const struct lttng_condition *condition,
+               const char **session_name);
+
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_set_session_name(
+               struct lttng_condition *condition,
+               const char *session_name);
+
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_get_channel_name(
+               const struct lttng_condition *condition,
+               const char **channel_name);
+
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_set_channel_name(
+               struct lttng_condition *condition,
+               const char *channel_name);
+
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_get_domain_type(
+               const struct lttng_condition *condition,
+               enum lttng_domain_type *type);
+
+extern enum lttng_condition_status
+lttng_condition_buffer_usage_set_domain_type(
+               struct lttng_condition *condition,
+               enum lttng_domain_type type);
+
+
+/* LTTng Condition Evaluation */
+extern enum lttng_evaluation_status
+lttng_evaluation_buffer_usage_get_usage_ratio(
+               const struct lttng_evaluation *evaluation,
+               double *usage_ratio);
+
+extern enum lttng_evaluation_status
+lttng_evaluation_buffer_usage_get_usage(
+               const struct lttng_evaluation *evaluation,
+               uint64_t *usage_bytes);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LTTNG_CONDITION_BUFFER_USAGE_H */