bin: compile lttng-sessiond as C++

[lttng-tools.git] / include / lttng / location-internal.h

diff --git a/include/lttng/location-internal.h b/include/lttng/location-internal.h
index 568040da829a0b1815d9571e71992fe8fb9ed739..9eafd471a2d5273cb4aa2273cfc304ce8f9f0b02 100644 (file)
--- a/include/lttng/location-internal.h
+++ b/include/lttng/location-internal.h
@@ -1,18 +1,8 @@
 /*
- * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * 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.
+ * 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_LOCATION_INTERNAL_H
@@ -22,8 +12,21 @@
 #include <common/dynamic-buffer.h>
 #include <common/buffer-view.h>
 #include <common/macros.h>
+#include <sys/types.h>
+#include <urcu/ref.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
+/*
+ * The public API assumes that trace archive locations are always
+ * provided as "constant". This means that the user of liblttng-ctl never
+ * has to destroy a trace archive location. Hence, users of liblttng-ctl
+ * have no visibility of the reference counting of archive locations.
+ */
 struct lttng_trace_archive_location {
+       struct urcu_ref ref;
        enum lttng_trace_archive_location_type type;
        union {
                struct {
@@ -75,29 +78,31 @@ struct lttng_trace_archive_location_comm {
 } LTTNG_PACKED;
 
 
-LTTNG_HIDDEN
 struct lttng_trace_archive_location *lttng_trace_archive_location_local_create(
                const char *path);
 
-LTTNG_HIDDEN
 struct lttng_trace_archive_location *lttng_trace_archive_location_relay_create(
                const char *host,
                enum lttng_trace_archive_location_relay_protocol_type protocol,
                uint16_t control_port, uint16_t data_port,
                const char *relative_path);
 
-LTTNG_HIDDEN
 ssize_t lttng_trace_archive_location_create_from_buffer(
                const struct lttng_buffer_view *buffer,
                struct lttng_trace_archive_location **location);
 
-LTTNG_HIDDEN
 ssize_t lttng_trace_archive_location_serialize(
                const struct lttng_trace_archive_location *location,
                struct lttng_dynamic_buffer *buffer);
 
-LTTNG_HIDDEN
-void lttng_trace_archive_location_destroy(
+void lttng_trace_archive_location_get(
                struct lttng_trace_archive_location *location);
 
+void lttng_trace_archive_location_put(
+               struct lttng_trace_archive_location *location);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* LTTNG_LOCATION_INTERNAL_H */