SoW-2020-0002: Trace Hit Counters: trigger error reporting integration

[lttng-tools.git] / include / lttng / snapshot.h

diff --git a/include/lttng/snapshot.h b/include/lttng/snapshot.h
index 8f5ee898ee1bdc7c52f7cdc8506445e1f7fd265a..e674c0c7bd11777cea95e5f4b5af894703039757 100644 (file)
--- a/include/lttng/snapshot.h
+++ b/include/lttng/snapshot.h
@@ -1,18 +1,8 @@
 /*
- * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2013 David Goulet <dgoulet@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.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * 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_SNAPSHOT_H
@@ -49,20 +39,20 @@ void lttng_snapshot_output_destroy(struct lttng_snapshot_output *output);
  */
 
 /* Return snapshot ID. */
-uint32_t lttng_snapshot_output_get_id(struct lttng_snapshot_output *output);
+uint32_t lttng_snapshot_output_get_id(const struct lttng_snapshot_output *output);
 /* Return maximum size of a snapshot. */
-uint64_t lttng_snapshot_output_get_maxsize(struct lttng_snapshot_output *output);
+uint64_t lttng_snapshot_output_get_maxsize(const struct lttng_snapshot_output *output);
 /* Return snapshot name. */
-const char *lttng_snapshot_output_get_name(struct lttng_snapshot_output *output);
+const char *lttng_snapshot_output_get_name(const struct lttng_snapshot_output *output);
 /* Return snapshot control URL in a text format. */
-const char *lttng_snapshot_output_get_ctrl_url(struct lttng_snapshot_output *output);
+const char *lttng_snapshot_output_get_ctrl_url(const struct lttng_snapshot_output *output);
 /* Return snapshot data URL in a text format. */
-const char *lttng_snapshot_output_get_data_url(struct lttng_snapshot_output *output);
+const char *lttng_snapshot_output_get_data_url(const struct lttng_snapshot_output *output);
 
 /*
  * Snapshot output setter family functions.
  *
- * For every set* call, 0 is returned on success or else LTTNG_ERR_INVALID is
+ * For every set* call, 0 is returned on success or else -LTTNG_ERR_INVALID is
  * returned indicating that at least one given parameter is invalid.
  */
 
@@ -75,6 +65,42 @@ int lttng_snapshot_output_set_size(uint64_t size,
 /* Set the snapshot name. */
 int lttng_snapshot_output_set_name(const char *name,
                struct lttng_snapshot_output *output);
+
+/*
+ * Set the output destination to be a path on the local filesystem.
+ *
+ * The path must be absolute. It can optionally begin with `file://`.
+ *
+ * Return 0 on success or else a negative LTTNG_ERR code.
+ */
+int lttng_snapshot_output_set_local_path(const char *path,
+               struct lttng_snapshot_output *output);
+
+/*
+ * Set the output destination to be the network from a combined control/data
+ * URL.
+ *
+ * `url` must start with `net://` or `net6://`.
+ *
+ * Return 0 on success or else a negative LTTNG_ERR code.
+ */
+int lttng_snapshot_output_set_network_url(const char *url,
+               struct lttng_snapshot_output *output);
+
+/*
+ * Set the output destination to be the network using separate URLs for control
+ * and data.
+ *
+ * Both ctrl_url and data_url must be non-null.
+ *
+ * `ctrl_url` and `data_url` must start with `tcp://` or `tcp6://`.
+ *
+ * Return 0 on success or else a negative LTTNG_ERR code.
+ */
+int lttng_snapshot_output_set_network_urls(
+               const char *ctrl_url, const char *data_url,
+               struct lttng_snapshot_output *output);
+
 /* Set the control URL. Local and remote URL are supported. */
 int lttng_snapshot_output_set_ctrl_url(const char *url,
                struct lttng_snapshot_output *output);