X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fmi-lttng.c;h=bdd6dcea15be62314c67256603e4bc1e4255f24e;hp=197add2d470518bf0e18f4f2ecc16320d8a88265;hb=3b13cbcca15abc7ddb64731ba047cfdad75d97a0;hpb=cf0bcb51ea857687a353d2851e572dba6cc63cb0

diff --git a/src/common/mi-lttng.c b/src/common/mi-lttng.c
index 197add2d4..bdd6dcea1 100644
--- a/src/common/mi-lttng.c
+++ b/src/common/mi-lttng.c
@@ -1,32 +1,24 @@
 /*
- * Copyright (C) 2014 - Jonathan Rajotte <jonathan.r.julien@gmail.com>
- *                    - Olivier Cotte <olivier.cotte@polymtl.ca>
- * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2014 Jonathan Rajotte <jonathan.r.julien@gmail.com>
+ * Copyright (C) 2014 Olivier Cotte <olivier.cotte@polymtl.ca>
+ * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program 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 General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#include "lttng/tracker.h"
 #define _LGPL_SOURCE
+#include "mi-lttng.h"
 #include <common/config/session-config.h>
 #include <common/defaults.h>
-#include <lttng/snapshot-internal.h>
+#include <common/tracker.h>
 #include <lttng/channel.h>
-#include "mi-lttng.h"
+#include <lttng/snapshot-internal.h>
 
 #include <assert.h>
 
-#define MI_SCHEMA_MAJOR_VERSION 3
+#define MI_SCHEMA_MAJOR_VERSION 4
 #define MI_SCHEMA_MINOR_VERSION 0
 
 /* Machine interface namespace URI */
@@ -36,7 +28,7 @@ LTTNG_HIDDEN const char * const mi_lttng_w3_schema_uri = "http://www.w3.org/2001
 LTTNG_HIDDEN const char * const mi_lttng_schema_location = "xsi:schemaLocation";
 LTTNG_HIDDEN const char * const mi_lttng_schema_location_uri =
 	DEFAULT_LTTNG_MI_NAMESPACE " "
-	"http://lttng.org/xml/schemas/lttng-mi/" XSTR(MI_SCHEMA_MAJOR_VERSION)
+	"https://lttng.org/xml/schemas/lttng-mi/" XSTR(MI_SCHEMA_MAJOR_VERSION)
 	"/lttng-mi-" XSTR(MI_SCHEMA_MAJOR_VERSION) "."
 	XSTR(MI_SCHEMA_MINOR_VERSION) ".xsd";
 LTTNG_HIDDEN const char * const mi_lttng_schema_version = "schemaVersion";
@@ -74,6 +66,10 @@ const char * const mi_lttng_element_command_success = "success";
 const char * const mi_lttng_element_command_track = "track";
 const char * const mi_lttng_element_command_untrack = "untrack";
 const char * const mi_lttng_element_command_version = "version";
+LTTNG_HIDDEN const char * const mi_lttng_element_command_rotate = "rotate";
+LTTNG_HIDDEN const char * const mi_lttng_element_command_enable_rotation = "enable-rotation";
+LTTNG_HIDDEN const char * const mi_lttng_element_command_disable_rotation = "disable-rotation";
+LTTNG_HIDDEN const char * const mi_lttng_element_command_clear = "clear";
 
 /* Strings related to version command */
 const char * const mi_lttng_element_version = "version";
@@ -179,6 +175,42 @@ const char * const mi_lttng_element_snapshots = "snapshots";
 /* String related to track/untrack command */
 const char * const mi_lttng_element_track_untrack_all_wildcard = "*";
 
+LTTNG_HIDDEN const char * const mi_lttng_element_session_name = "session_name";
+
+/* String related to rotate command */
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation = "rotation";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotate_status = "status";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule = "rotation_schedule";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedules = "rotation_schedules";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_result = "rotation_schedule_result";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_results = "rotation_schedule_results";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_periodic = "periodic";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_periodic_time_us = "time_us";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_size_threshold = "size_threshold";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_schedule_size_threshold_bytes = "bytes";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_state = "state";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location = "location";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_local = "local";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_local_absolute_path = "absolute_path";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay = "relay";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_host = "host";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_control_port = "control_port";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_data_port = "data_port";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_protocol = "protocol";
+LTTNG_HIDDEN const char * const mi_lttng_element_rotation_location_relay_relative_path = "relative_path";
+
+/* String related to enum lttng_rotation_state */
+LTTNG_HIDDEN const char * const mi_lttng_rotation_state_str_ongoing = "ONGOING";
+LTTNG_HIDDEN const char * const mi_lttng_rotation_state_str_completed = "COMPLETED";
+LTTNG_HIDDEN const char * const mi_lttng_rotation_state_str_expired = "EXPIRED";
+LTTNG_HIDDEN const char * const mi_lttng_rotation_state_str_error = "ERROR";
+
+/* String related to enum lttng_trace_archive_location_relay_protocol_type */
+LTTNG_HIDDEN const char * const mi_lttng_rotation_location_relay_protocol_str_tcp = "TCP";
+
+/* String related to add-context command */
+LTTNG_HIDDEN const char * const mi_lttng_element_context_symbol = "symbol";
+
 /* Deprecated symbols preserved for ABI compatibility. */
 const char * const mi_lttng_context_type_perf_counter;
 const char * const mi_lttng_context_type_perf_cpu_counter;
@@ -324,7 +356,7 @@ const char *mi_lttng_logleveltype_string(enum lttng_loglevel_type value)
 	}
 }
 
-LTTNG_HIDDEN
+static
 const char *mi_lttng_eventtype_string(enum lttng_event_type value)
 {
 	switch (value) {
@@ -334,6 +366,8 @@ const char *mi_lttng_eventtype_string(enum lttng_event_type value)
 		return config_event_type_tracepoint;
 	case LTTNG_EVENT_PROBE:
 		return config_event_type_probe;
+	case LTTNG_EVENT_USERSPACE_PROBE:
+		return config_event_type_userspace_probe;
 	case LTTNG_EVENT_FUNCTION:
 		return config_event_type_function;
 	case LTTNG_EVENT_FUNCTION_ENTRY:
@@ -375,6 +409,58 @@ const char *mi_lttng_event_contexttype_string(enum lttng_event_context_type val)
 		return config_event_context_hostname;
 	case LTTNG_EVENT_CONTEXT_IP:
 		return config_event_context_ip;
+	case LTTNG_EVENT_CONTEXT_INTERRUPTIBLE:
+		return config_event_context_interruptible;
+	case LTTNG_EVENT_CONTEXT_PREEMPTIBLE:
+		return config_event_context_preemptible;
+	case LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE:
+		return config_event_context_need_reschedule;
+	case LTTNG_EVENT_CONTEXT_MIGRATABLE:
+		return config_event_context_migratable;
+	case LTTNG_EVENT_CONTEXT_CALLSTACK_USER:
+		return config_event_context_callstack_user;
+	case LTTNG_EVENT_CONTEXT_CALLSTACK_KERNEL:
+		return config_event_context_callstack_kernel;
+	case LTTNG_EVENT_CONTEXT_CGROUP_NS:
+		return config_event_context_cgroup_ns;
+	case LTTNG_EVENT_CONTEXT_IPC_NS:
+		return config_event_context_ipc_ns;
+	case LTTNG_EVENT_CONTEXT_MNT_NS:
+		return config_event_context_mnt_ns;
+	case LTTNG_EVENT_CONTEXT_NET_NS:
+		return config_event_context_net_ns;
+	case LTTNG_EVENT_CONTEXT_PID_NS:
+		return config_event_context_pid_ns;
+	case LTTNG_EVENT_CONTEXT_TIME_NS:
+		return config_event_context_time_ns;
+	case LTTNG_EVENT_CONTEXT_USER_NS:
+		return config_event_context_user_ns;
+	case LTTNG_EVENT_CONTEXT_UTS_NS:
+		return config_event_context_uts_ns;
+	case LTTNG_EVENT_CONTEXT_UID:
+		return config_event_context_uid;
+	case LTTNG_EVENT_CONTEXT_EUID:
+		return config_event_context_euid;
+	case LTTNG_EVENT_CONTEXT_SUID:
+		return config_event_context_suid;
+	case LTTNG_EVENT_CONTEXT_GID:
+		return config_event_context_gid;
+	case LTTNG_EVENT_CONTEXT_EGID:
+		return config_event_context_egid;
+	case LTTNG_EVENT_CONTEXT_SGID:
+		return config_event_context_sgid;
+	case LTTNG_EVENT_CONTEXT_VUID:
+		return config_event_context_vuid;
+	case LTTNG_EVENT_CONTEXT_VEUID:
+		return config_event_context_veuid;
+	case LTTNG_EVENT_CONTEXT_VSUID:
+		return config_event_context_vsuid;
+	case LTTNG_EVENT_CONTEXT_VGID:
+		return config_event_context_vgid;
+	case LTTNG_EVENT_CONTEXT_VEGID:
+		return config_event_context_vegid;
+	case LTTNG_EVENT_CONTEXT_VSGID:
+		return config_event_context_vsgid;
 	default:
 		return NULL;
 	}
@@ -436,6 +522,39 @@ const char *mi_lttng_buffertype_string(enum lttng_buffer_type value)
 	}
 }
 
+LTTNG_HIDDEN
+const char *mi_lttng_rotation_state_string(enum lttng_rotation_state value)
+{
+	switch (value) {
+	case LTTNG_ROTATION_STATE_ONGOING:
+		return mi_lttng_rotation_state_str_ongoing;
+	case LTTNG_ROTATION_STATE_COMPLETED:
+		return mi_lttng_rotation_state_str_completed;
+	case LTTNG_ROTATION_STATE_EXPIRED:
+		return mi_lttng_rotation_state_str_expired;
+	case LTTNG_ROTATION_STATE_ERROR:
+		return mi_lttng_rotation_state_str_error;
+	default:
+		/* Should not have an unknow rotation state. */
+		assert(0);
+		return NULL;
+	}
+}
+
+LTTNG_HIDDEN
+const char *mi_lttng_trace_archive_location_relay_protocol_type_string(
+		enum lttng_trace_archive_location_relay_protocol_type value)
+{
+	switch (value) {
+	case LTTNG_TRACE_ARCHIVE_LOCATION_RELAY_PROTOCOL_TYPE_TCP:
+		return mi_lttng_rotation_location_relay_protocol_str_tcp;
+	default:
+		/* Should not have an unknow relay protocol. */
+		assert(0);
+		return NULL;
+	}
+}
+
 LTTNG_HIDDEN
 struct mi_writer *mi_lttng_writer_create(int fd_output, int mi_output_type)
 {
@@ -863,6 +982,7 @@ int mi_lttng_channel_attr(struct mi_writer *writer,
 	struct lttng_channel *chan = caa_container_of(attr,
 			struct lttng_channel, attr);
 	uint64_t discarded_events, lost_packets, monitor_timer_interval;
+	int64_t blocking_timeout;
 
 	assert(attr);
 
@@ -882,6 +1002,12 @@ int mi_lttng_channel_attr(struct mi_writer *writer,
 		goto end;
 	}
 
+	ret = lttng_channel_get_blocking_timeout(chan,
+			&blocking_timeout);
+	if (ret) {
+		goto end;
+	}
+
 	/* Opening Attributes */
 	ret = mi_lttng_writer_open_element(writer, config_element_attributes);
 	if (ret) {
@@ -936,6 +1062,14 @@ int mi_lttng_channel_attr(struct mi_writer *writer,
 		goto end;
 	}
 
+	/* Retry timeout in usec */
+	ret = mi_lttng_writer_write_element_signed_int(writer,
+		config_element_blocking_timeout,
+		blocking_timeout);
+	if (ret) {
+		goto end;
+	}
+
 	/* Event output */
 	ret = mi_lttng_writer_write_element_string(writer,
 		config_element_output_type,
@@ -1174,6 +1308,141 @@ end:
 	return ret;
 }
 
+static
+int mi_lttng_event_userspace_probe(struct mi_writer *writer,
+		struct lttng_event *event)
+{
+	int ret;
+	const struct lttng_userspace_probe_location *location;
+	const struct lttng_userspace_probe_location_lookup_method *lookup_method;
+	enum lttng_userspace_probe_location_lookup_method_type lookup_type;
+
+	location = lttng_event_get_userspace_probe_location(event);
+	if (!location) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	lookup_method = lttng_userspace_probe_location_get_lookup_method(location);
+	if (!lookup_method) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	lookup_type = lttng_userspace_probe_location_lookup_method_get_type(lookup_method);
+
+	ret = mi_lttng_writer_open_element(writer, config_element_attributes);
+	if (ret) {
+		goto end;
+	}
+
+	switch (lttng_userspace_probe_location_get_type(location)) {
+	case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION:
+	{
+		const char *function_name;
+		const char *binary_path;
+
+		ret = mi_lttng_writer_open_element(writer,
+				config_element_userspace_probe_function_attributes);
+		if (ret) {
+			goto end;
+		}
+
+		switch (lookup_type) {
+		case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_ELF:
+			ret = mi_lttng_writer_write_element_string(writer,
+					config_element_userspace_probe_lookup,
+					config_element_userspace_probe_lookup_function_elf);
+			if (ret) {
+				goto end;
+			}
+			break;
+		case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_DEFAULT:
+			ret = mi_lttng_writer_write_element_string(writer,
+					config_element_userspace_probe_lookup,
+					config_element_userspace_probe_lookup_function_default);
+			if (ret) {
+				goto end;
+			}
+			break;
+		default:
+			goto end;
+		}
+
+		binary_path = lttng_userspace_probe_location_function_get_binary_path(location);
+		ret = mi_lttng_writer_write_element_string(writer,
+				config_element_userspace_probe_location_binary_path, binary_path);
+		if (ret) {
+			goto end;
+		}
+
+		function_name = lttng_userspace_probe_location_function_get_function_name(location);
+		ret = mi_lttng_writer_write_element_string(writer,
+				config_element_userspace_probe_function_location_function_name,
+				function_name);
+		if (ret) {
+			goto end;
+		}
+
+		break;
+	}
+	case LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT:
+	{
+		const char *probe_name, *provider_name;
+		const char *binary_path;
+
+		ret = mi_lttng_writer_open_element(writer,
+				config_element_userspace_probe_function_attributes);
+		if (ret) {
+			goto end;
+		}
+
+		switch (lookup_type) {
+		case LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_TRACEPOINT_SDT:
+			ret = mi_lttng_writer_write_element_string(writer,
+					config_element_userspace_probe_lookup,
+					config_element_userspace_probe_lookup_tracepoint_sdt);
+			if (ret) {
+				goto end;
+			}
+			break;
+		default:
+			goto end;
+		}
+
+		binary_path = lttng_userspace_probe_location_tracepoint_get_binary_path(location);
+		ret = mi_lttng_writer_write_element_string(writer,
+				config_element_userspace_probe_location_binary_path,
+				binary_path);
+		if (ret) {
+			goto end;
+		}
+
+		provider_name = lttng_userspace_probe_location_tracepoint_get_provider_name(location);
+		ret = mi_lttng_writer_write_element_string(writer,
+				config_element_userspace_probe_tracepoint_location_provider_name,
+				provider_name);
+		if (ret) {
+			goto end;
+		}
+
+		probe_name = lttng_userspace_probe_location_tracepoint_get_probe_name(location);
+		ret = mi_lttng_writer_write_element_string(writer,
+				config_element_userspace_probe_tracepoint_location_probe_name, probe_name);
+		if (ret) {
+			goto end;
+		}
+		break;
+	}
+	default:
+		ERR("Invalid probe type encountered");
+	}
+	/* Close probe_attributes and attributes */
+	ret = mi_lttng_close_multi_element(writer, 2);
+end:
+	return ret;
+}
+
 LTTNG_HIDDEN
 int mi_lttng_event_function_entry(struct mi_writer *writer,
 		struct lttng_event *event)
@@ -1238,12 +1507,19 @@ int mi_lttng_event(struct mi_writer *writer,
 	case LTTNG_EVENT_FUNCTION_ENTRY:
 		ret = mi_lttng_event_function_entry(writer, event);
 		break;
+	case LTTNG_EVENT_USERSPACE_PROBE:
+		ret = mi_lttng_event_userspace_probe(writer, event);
+		break;
 	case LTTNG_EVENT_ALL:
 		/* Fallthrough */
 	default:
 		break;
 	}
 
+	if (ret) {
+		goto end;
+	}
+
 	if (!is_open) {
 		ret = mi_lttng_writer_close_element(writer);
 	}
@@ -1255,22 +1531,80 @@ end:
 LTTNG_HIDDEN
 int mi_lttng_trackers_open(struct mi_writer *writer)
 {
-	return mi_lttng_writer_open_element(writer, config_element_trackers);
+	return mi_lttng_writer_open_element(
+			writer, config_element_process_attr_trackers);
+}
+
+static int get_tracker_elements(enum lttng_process_attr process_attr,
+		const char **element_process_attr_tracker,
+		const char **element_process_attr_value)
+{
+	int ret = 0;
+
+	switch (process_attr) {
+	case LTTNG_PROCESS_ATTR_PROCESS_ID:
+		*element_process_attr_tracker =
+				config_element_process_attr_tracker_pid;
+		*element_process_attr_value =
+				config_element_process_attr_pid_value;
+		break;
+	case LTTNG_PROCESS_ATTR_VIRTUAL_PROCESS_ID:
+		*element_process_attr_tracker =
+				config_element_process_attr_tracker_vpid;
+		*element_process_attr_value =
+				config_element_process_attr_vpid_value;
+		break;
+	case LTTNG_PROCESS_ATTR_USER_ID:
+		*element_process_attr_tracker =
+				config_element_process_attr_tracker_uid;
+		*element_process_attr_value =
+				config_element_process_attr_uid_value;
+		break;
+	case LTTNG_PROCESS_ATTR_VIRTUAL_USER_ID:
+		*element_process_attr_tracker =
+				config_element_process_attr_tracker_vuid;
+		*element_process_attr_value =
+				config_element_process_attr_vuid_value;
+		break;
+	case LTTNG_PROCESS_ATTR_GROUP_ID:
+		*element_process_attr_tracker =
+				config_element_process_attr_tracker_gid;
+		*element_process_attr_value =
+				config_element_process_attr_gid_value;
+		break;
+	case LTTNG_PROCESS_ATTR_VIRTUAL_GROUP_ID:
+		*element_process_attr_tracker =
+				config_element_process_attr_tracker_vgid;
+		*element_process_attr_value =
+				config_element_process_attr_vgid_value;
+		break;
+	default:
+		ret = LTTNG_ERR_SAVE_IO_FAIL;
+	}
+	return ret;
 }
 
 LTTNG_HIDDEN
-int mi_lttng_pid_tracker_open(struct mi_writer *writer)
+int mi_lttng_process_attribute_tracker_open(
+		struct mi_writer *writer, enum lttng_process_attr process_attr)
 {
 	int ret;
+	const char *element_tracker, *element_value;
 
-	/* Open element pid_tracker */
-	ret = mi_lttng_writer_open_element(writer, config_element_pid_tracker);
+	ret = get_tracker_elements(
+			process_attr, &element_tracker, &element_value);
+	if (ret) {
+		return ret;
+	}
+
+	/* Open process attribute tracker element */
+	ret = mi_lttng_writer_open_element(writer, element_tracker);
 	if (ret) {
 		goto end;
 	}
 
-	/* Open targets element */
-	ret = mi_lttng_targets_open(writer);
+	/* Open values element */
+	ret = mi_lttng_process_attr_values_open(writer);
 end:
 	return ret;
 }
@@ -1286,7 +1620,9 @@ int mi_lttng_pids_open(struct mi_writer *writer)
  * mi api bump. The use of process element break the mi api.
  */
 LTTNG_HIDDEN
-int mi_lttng_pid(struct mi_writer *writer, pid_t pid , const char *name,
+int mi_lttng_pid(struct mi_writer *writer,
+		pid_t pid,
+		const char *name,
 		int is_open)
 {
 	int ret;
@@ -1323,35 +1659,136 @@ end:
 }
 
 LTTNG_HIDDEN
-int mi_lttng_targets_open(struct mi_writer *writer)
+int mi_lttng_process_attr_values_open(struct mi_writer *writer)
 {
-	return mi_lttng_writer_open_element(writer,
-			config_element_targets);
+	return mi_lttng_writer_open_element(
+			writer, config_element_process_attr_values);
 }
 
 LTTNG_HIDDEN
-int mi_lttng_pid_target(struct mi_writer *writer, pid_t pid, int is_open)
+int mi_lttng_all_process_attribute_value(struct mi_writer *writer,
+		enum lttng_process_attr process_attr,
+		bool is_open)
 {
 	int ret;
+	const char *element_id_tracker, *element_target_id;
 
-	ret = mi_lttng_writer_open_element(writer,
-			config_element_target_pid);
+	ret = get_tracker_elements(
+			process_attr, &element_id_tracker, &element_target_id);
+	if (ret) {
+		return ret;
+	}
+
+	ret = mi_lttng_writer_open_element(writer, element_target_id);
 	if (ret) {
 		goto end;
 	}
 
-	/* Writing pid number
-	 * Special case for element all on track untrack command
-	 * All pid is represented as wildcard *
-	 */
-	if ((int) pid == -1) {
-		ret = mi_lttng_writer_write_element_string(writer,
-				config_element_pid,
-				mi_lttng_element_track_untrack_all_wildcard);
-	} else {
-		ret = mi_lttng_writer_write_element_signed_int(writer,
-				config_element_pid, (int) pid);
+	ret = mi_lttng_writer_open_element(writer, config_element_type);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_write_element_bool(writer, config_element_all, 1);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		goto end;
+	}
+
+	if (!is_open) {
+		ret = mi_lttng_writer_close_element(writer);
+		if (ret) {
+			goto end;
+		}
+	}
+end:
+	return ret;
+}
+
+LTTNG_HIDDEN
+int mi_lttng_integral_process_attribute_value(struct mi_writer *writer,
+		enum lttng_process_attr process_attr,
+		int64_t value,
+		bool is_open)
+{
+	int ret;
+	const char *element_id_tracker, *element_target_id;
+
+	ret = get_tracker_elements(
+			process_attr, &element_id_tracker, &element_target_id);
+	if (ret) {
+		return ret;
+	}
+
+	ret = mi_lttng_writer_open_element(writer, element_target_id);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_open_element(writer, config_element_type);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_write_element_signed_int(
+			writer, config_element_process_attr_id, value);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		goto end;
+	}
+
+	if (!is_open) {
+		ret = mi_lttng_writer_close_element(writer);
+		if (ret) {
+			goto end;
+		}
+	}
+
+end:
+	return ret;
+}
+
+LTTNG_HIDDEN
+int mi_lttng_string_process_attribute_value(struct mi_writer *writer,
+		enum lttng_process_attr process_attr,
+		const char *value,
+		bool is_open)
+
+{
+	int ret;
+	const char *element_id_tracker, *element_target_id;
+
+	ret = get_tracker_elements(
+			process_attr, &element_id_tracker, &element_target_id);
+	if (ret) {
+		return ret;
+	}
+
+	ret = mi_lttng_writer_open_element(writer, element_target_id);
+	if (ret) {
+		goto end;
 	}
+
+	ret = mi_lttng_writer_open_element(writer, config_element_type);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_write_element_string(
+			writer, config_element_name, value);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_close_element(writer);
 	if (ret) {
 		goto end;
 	}
@@ -1796,3 +2233,309 @@ int mi_lttng_snapshot_record(struct mi_writer *writer,
 end:
 	return ret;
 }
+
+LTTNG_HIDDEN
+int mi_lttng_rotation_schedule(struct mi_writer *writer,
+		const struct lttng_rotation_schedule *schedule)
+{
+	int ret = 0;
+	enum lttng_rotation_status status;
+	uint64_t value;
+	const char *element_name;
+	const char *value_name;
+	bool empty_schedule = false;
+
+	switch (lttng_rotation_schedule_get_type(schedule)) {
+	case LTTNG_ROTATION_SCHEDULE_TYPE_PERIODIC:
+		status = lttng_rotation_schedule_periodic_get_period(schedule,
+				&value);
+		element_name = mi_lttng_element_rotation_schedule_periodic;
+		value_name = mi_lttng_element_rotation_schedule_periodic_time_us;
+		break;
+	case LTTNG_ROTATION_SCHEDULE_TYPE_SIZE_THRESHOLD:
+		status = lttng_rotation_schedule_size_threshold_get_threshold(
+				schedule, &value);
+		element_name = mi_lttng_element_rotation_schedule_size_threshold;
+		value_name = mi_lttng_element_rotation_schedule_size_threshold_bytes;
+		break;
+	default:
+		ret = -1;
+		goto end;
+	}
+
+	if (status != LTTNG_ROTATION_STATUS_OK) {
+		if (status == LTTNG_ROTATION_STATUS_UNAVAILABLE) {
+			empty_schedule = true;
+		} else {
+			ret = -1;
+			goto end;
+		}
+	}
+
+	ret = mi_lttng_writer_open_element(writer, element_name);
+	if (ret) {
+		goto end;
+	}
+
+	if (!empty_schedule) {
+		ret = mi_lttng_writer_write_element_unsigned_int(writer,
+				value_name, value);
+		if (ret) {
+			goto end;
+		}
+	}
+
+	/* Close schedule descriptor element. */
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		goto end;
+	}
+end:
+	return ret;
+}
+
+LTTNG_HIDDEN
+int mi_lttng_rotation_schedule_result(struct mi_writer *writer,
+		const struct lttng_rotation_schedule *schedule,
+		bool success)
+{
+	int ret = 0;
+
+	ret = mi_lttng_writer_open_element(writer,
+			mi_lttng_element_rotation_schedule_result);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_open_element(writer,
+			mi_lttng_element_rotation_schedule);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_rotation_schedule(writer, schedule);
+	if (ret) {
+		goto end;
+	}
+
+	/* Close rotation_schedule element */
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_write_element_bool(writer,
+			mi_lttng_element_command_success, success);
+	if (ret) {
+		goto end;
+	}
+
+	/* Close rotation_schedule_result element */
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		goto end;
+	}
+end:
+	return ret;
+}
+
+static
+int mi_lttng_location(struct mi_writer *writer,
+		const struct lttng_trace_archive_location *location)
+{
+	int ret = 0;
+	enum lttng_trace_archive_location_type location_type;
+	enum lttng_trace_archive_location_status status;
+
+	location_type = lttng_trace_archive_location_get_type(location);
+
+	switch (location_type) {
+	case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_LOCAL:
+	{
+		const char *absolute_path;
+
+		status = lttng_trace_archive_location_local_get_absolute_path(
+				location, &absolute_path);
+		if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
+			ret = -1;
+			goto end;
+		}
+
+		ret = mi_lttng_writer_open_element(writer,
+				mi_lttng_element_rotation_location_local);
+		if (ret) {
+			goto end;
+		}
+
+
+		ret = mi_lttng_writer_write_element_string(writer,
+				mi_lttng_element_rotation_location_local_absolute_path,
+				absolute_path);
+		if (ret) {
+			goto end;
+		}
+
+		/* Close local element */
+		ret = mi_lttng_writer_close_element(writer);
+		if (ret) {
+			goto end;
+		}
+		break;
+	}
+	case LTTNG_TRACE_ARCHIVE_LOCATION_TYPE_RELAY:
+	{
+		uint16_t control_port, data_port;
+		const char *host, *relative_path;
+		enum lttng_trace_archive_location_relay_protocol_type protocol;
+
+		/* Fetch all relay location parameters. */
+		status = lttng_trace_archive_location_relay_get_protocol_type(
+				location, &protocol);
+		if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
+			ret = -1;
+			goto end;
+		}
+
+		status = lttng_trace_archive_location_relay_get_host(
+				location, &host);
+		if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
+			ret = -1;
+			goto end;
+		}
+
+		status = lttng_trace_archive_location_relay_get_control_port(
+				location, &control_port);
+		if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
+			ret = -1;
+			goto end;
+		}
+
+		status = lttng_trace_archive_location_relay_get_data_port(
+				location, &data_port);
+		if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
+			ret = -1;
+			goto end;
+		}
+
+		status = lttng_trace_archive_location_relay_get_relative_path(
+				location, &relative_path);
+		if (status != LTTNG_TRACE_ARCHIVE_LOCATION_STATUS_OK) {
+			ret = -1;
+			goto end;
+		}
+
+		ret = mi_lttng_writer_open_element(writer,
+				mi_lttng_element_rotation_location_relay);
+		if (ret) {
+			goto end;
+		}
+
+		ret = mi_lttng_writer_write_element_string(writer,
+				mi_lttng_element_rotation_location_relay_host,
+				host);
+		if (ret) {
+			goto end;
+		}
+
+		ret = mi_lttng_writer_write_element_unsigned_int(writer,
+				mi_lttng_element_rotation_location_relay_control_port,
+				control_port);
+		if (ret) {
+			goto end;
+		}
+
+		ret = mi_lttng_writer_write_element_unsigned_int(writer,
+				mi_lttng_element_rotation_location_relay_data_port,
+				data_port);
+		if (ret) {
+			goto end;
+		}
+
+		ret = mi_lttng_writer_write_element_string(writer,
+				mi_lttng_element_rotation_location_relay_protocol,
+				mi_lttng_trace_archive_location_relay_protocol_type_string(protocol));
+		if (ret) {
+			goto end;
+		}
+
+		ret = mi_lttng_writer_write_element_string(writer,
+				mi_lttng_element_rotation_location_relay_relative_path,
+				relative_path);
+		if (ret) {
+			goto end;
+		}
+
+		/* Close relay element */
+		ret = mi_lttng_writer_close_element(writer);
+		if (ret) {
+			goto end;
+		}
+		break;
+	}
+	default:
+		abort();
+	}
+end:
+	return ret;
+}
+
+LTTNG_HIDDEN
+int mi_lttng_rotate(struct mi_writer *writer,
+		const char *session_name,
+		enum lttng_rotation_state rotation_state,
+		const struct lttng_trace_archive_location *location)
+{
+	int ret;
+
+	ret = mi_lttng_writer_open_element(writer,
+			mi_lttng_element_rotation);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_write_element_string(writer,
+			mi_lttng_element_session_name,
+			session_name);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_writer_write_element_string(writer,
+			mi_lttng_element_rotation_state,
+			mi_lttng_rotation_state_string(rotation_state));
+	if (ret) {
+		goto end;
+	}
+
+	if (!location) {
+		/* Not a serialization error. */
+		goto close_rotation;
+	}
+
+	ret = mi_lttng_writer_open_element(writer,
+			mi_lttng_element_rotation_location);
+	if (ret) {
+		goto end;
+	}
+
+	ret = mi_lttng_location(writer, location);
+	if (ret) {
+		goto close_location;
+	}
+
+close_location:
+	/* Close location element */
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		goto end;
+	}
+	
+close_rotation:
+	/* Close rotation element */
+	ret = mi_lttng_writer_close_element(writer);
+	if (ret) {
+		goto end;
+	}
+end:
+	return ret;
+}