Add trace archive location serialization/deserialization methods
[lttng-tools.git] / include / lttng / location-internal.h
index dc7137337641ba35417f645fd4c86d3c69428c4f..568040da829a0b1815d9571e71992fe8fb9ed739 100644 (file)
@@ -19,6 +19,8 @@
 #define LTTNG_LOCATION_INTERNAL_H
 
 #include <lttng/location.h>
+#include <common/dynamic-buffer.h>
+#include <common/buffer-view.h>
 #include <common/macros.h>
 
 struct lttng_trace_archive_location {
@@ -38,6 +40,41 @@ struct lttng_trace_archive_location {
        } types;
 };
 
+struct lttng_trace_archive_location_comm {
+       /* A value from enum lttng_trace_archive_location_type */
+       int8_t type;
+       union {
+               struct {
+                       /* Includes the trailing \0. */
+                       uint32_t absolute_path_len;
+               } LTTNG_PACKED local;
+               struct {
+                       /* Includes the trailing \0. */
+                       uint32_t hostname_len;
+                       /*
+                        * A value from
+                        * enum lttng_trace_archive_location_relay_protocol_type.
+                        */
+                       int8_t protocol;
+                       struct {
+                               uint16_t control, data;
+                       } ports;
+                       /* Includes the trailing \0. */
+                       uint32_t relative_path_len;
+               } LTTNG_PACKED relay;
+       } LTTNG_PACKED types;
+       /*
+        * Payload is composed of:
+        * - LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_LOCAL
+        *   - absolute path, including \0
+        * - LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_RELAY
+        *   - hostname, including \0
+        *   - relative path, including \0
+        */
+       char payload[];
+} LTTNG_PACKED;
+
+
 LTTNG_HIDDEN
 struct lttng_trace_archive_location *lttng_trace_archive_location_local_create(
                const char *path);
@@ -49,6 +86,16 @@ struct lttng_trace_archive_location *lttng_trace_archive_location_relay_create(
                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(
                struct lttng_trace_archive_location *location);
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