<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (C) 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>

SPDX-License-Identifier: MIT

-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified" version="2.12">

<xs:simpleType name="name_type">
	<xs:restriction base="xs:string">
		<xs:maxLength value="255"/>
	</xs:restriction>
</xs:simpleType>

<xs:simpleType name="uint64_type">
	<xs:restriction base="xs:integer">
		<xs:minInclusive value="0"/>
		<xs:maxInclusive value="18446744073709551615"/>
	</xs:restriction>
</xs:simpleType>

<xs:simpleType name="uint32_type">
	<xs:restriction base="xs:integer">
		<xs:minInclusive value="0"/>
		<xs:maxInclusive value="4294967295"/>
	</xs:restriction>
</xs:simpleType>

<!--
Maps to the range allowed for blocking timeout: -1 (block forever),
0 (do not block), positive integer value (blocking time in usec) limited
by its signed 32-bit representation when converted to msec.
-->
<xs:simpleType name="blocking_timeout_type">
	<xs:restriction base="xs:integer">
		<xs:minInclusive value="-1" />
		<xs:maxInclusive value="2147483648000" />
	</xs:restriction>
</xs:simpleType>

<xs:simpleType name="channel_overwrite_mode_type">
	<xs:restriction base="xs:string">
		<xs:enumeration value="DISCARD"/>
		<xs:enumeration value="OVERWRITE"/>
	</xs:restriction>
</xs:simpleType>

<!-- Maps to the lttng_event_output enum -->
<xs:simpleType name="event_output_type">
	<xs:restriction base="xs:string">
		<xs:enumeration value="SPLICE"/>
		<xs:enumeration value="MMAP"/>
	</xs:restriction>
</xs:simpleType>

<!-- Maps to the lttng_loglevel_type enum -->
<xs:simpleType name="loglevel_type">
	<xs:restriction base="xs:string">
		<xs:enumeration value="ALL"/>
		<xs:enumeration value="RANGE"/>
		<xs:enumeration value="SINGLE"/>
	</xs:restriction>
</xs:simpleType>

<!-- Maps to the lttng_event_type enum -->
<xs:simpleType name="event_type_type">
	<xs:restriction base="xs:string">
		<xs:enumeration value="ALL"/>
		<xs:enumeration value="TRACEPOINT"/>
		<xs:enumeration value="PROBE"/>
		<xs:enumeration value="USERSPACE_PROBE"/>
		<xs:enumeration value="FUNCTION"/>
		<xs:enumeration value="FUNCTION_ENTRY"/>
		<xs:enumeration value="NOOP"/>
		<xs:enumeration value="SYSCALL"/>
		<xs:enumeration value="KPROBE"/>
		<xs:enumeration value="KRETPROBE"/>
	</xs:restriction>
</xs:simpleType>

<xs:complexType name="event_probe_attributes_type">
	<xs:all>
		<xs:element name="symbol_name" type="name_type" minOccurs="0"/>
		<xs:element name="address" type="uint64_type" minOccurs="0"/>
		<xs:element name="offset" type="uint64_type" minOccurs="0"/>
	</xs:all>
</xs:complexType>

<xs:simpleType name="userspace_probe_lookup_method">
	<xs:restriction base="xs:string">
		<xs:enumeration value="DEFAULT"/>
		<xs:enumeration value="ELF"/>
		<xs:enumeration value="SDT"/>
	</xs:restriction>
</xs:simpleType>

<xs:complexType name="event_userspace_probe_function_attributes_type">
	<xs:all>
		<xs:element name="lookup_method" type="userspace_probe_lookup_method"/>
		<xs:element name="binary_path" type="xs:string"/>
		<xs:element name="function_name" type="xs:string"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="event_userspace_probe_tracepoint_attributes_type">
	<xs:all>
		<xs:element name="lookup_method" type="userspace_probe_lookup_method"/>
		<xs:element name="binary_path" type="xs:string"/>
		<xs:element name="probe_name" type="xs:string"/>
		<xs:element name="provider_name" type="xs:string"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="event_ftrace_attributes_type">
	<xs:all>
		<xs:element name="symbol_name" type="name_type"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="event_attributes_type">
	<xs:choice>
		<xs:element name="probe_attributes" type="event_probe_attributes_type"/>
		<xs:element name="function_attributes" type="event_ftrace_attributes_type"/>
		<xs:element name="userspace_probe_function_attributes" type="event_userspace_probe_function_attributes_type"/>
		<xs:element name="userspace_probe_tracepoint_attributes" type="event_userspace_probe_tracepoint_attributes_type"/>
	</xs:choice>
</xs:complexType>

<xs:complexType name="event_exclusion_list_type">
	<xs:sequence>
		<xs:element name="exclusion" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
	</xs:sequence>
</xs:complexType>

<xs:complexType name="event_type">
	<xs:all>
		<xs:element name="name" type="name_type" minOccurs="0"/>
		<xs:element name="enabled" type="xs:boolean" default="true" minOccurs="0"/>
		<xs:element name="type" type="event_type_type" default="TRACEPOINT" minOccurs="0"/>
		<xs:element name="loglevel_type" type="loglevel_type" default="ALL" minOccurs="0"/>
		<xs:element name="loglevel" type="xs:int" default="-1" minOccurs="0"/>
		<xs:element name="filter" type="xs:string" minOccurs="0"/>
		<xs:element name="exclusions" type="event_exclusion_list_type" minOccurs="0"/>
		<xs:element name="attributes" type="event_attributes_type" minOccurs="0"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="event_list_type">
	<xs:sequence>
		<xs:element name="event" type="event_type" minOccurs="0" maxOccurs="unbounded"/>
	</xs:sequence>
</xs:complexType>

<xs:complexType name="event_perf_context_type">
	<xs:all>
		<xs:element name="type" type="uint32_type"/>
		<xs:element name="config" type="uint64_type"/>
		<xs:element name="name" type="name_type"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="event_app_context_type">
	<xs:all>
	  <xs:element name="provider_name" type="xs:string"/>
	  <xs:element name="ctx_name" type="xs:string"/>
	</xs:all>
</xs:complexType>

<!-- Maps to the lttng_event_context_type enum -->
<xs:simpleType name="event_context_type_type">
	<xs:restriction base="xs:string">
		<xs:enumeration value="PID"/>
		<xs:enumeration value="PROCNAME"/>
		<xs:enumeration value="PRIO"/>
		<xs:enumeration value="NICE"/>
		<xs:enumeration value="VPID"/>
		<xs:enumeration value="TID"/>
		<xs:enumeration value="VTID"/>
		<xs:enumeration value="PPID"/>
		<xs:enumeration value="VPPID"/>
		<xs:enumeration value="PTHREAD_ID"/>
		<xs:enumeration value="HOSTNAME"/>
		<xs:enumeration value="IP"/>
		<xs:enumeration value="APP"/>
		<xs:enumeration value="INTERRUPTIBLE" />
		<xs:enumeration value="PREEMPTIBLE" />
		<xs:enumeration value="NEED_RESCHEDULE" />
		<xs:enumeration value="MIGRATABLE" />
		<xs:enumeration value="CALLSTACK_USER" />
		<xs:enumeration value="CALLSTACK_KERNEL" />
	</xs:restriction>
</xs:simpleType>

<xs:complexType name="event_context_type">
	<xs:choice>
		<xs:element name="type" type="event_context_type_type"/>
		<xs:element name="perf" type="event_perf_context_type"/>
		<xs:element name="app" type="event_app_context_type"/>
	</xs:choice>
</xs:complexType>

<xs:complexType name="event_context_list_type">
	<xs:sequence>
		<xs:element name="context" type="event_context_type" minOccurs="0" maxOccurs="unbounded"/>
	</xs:sequence>
</xs:complexType>

<!-- Maps to struct lttng_channel -->
<xs:complexType name="channel_type">
	<xs:all>
		<xs:element name="name" type="name_type"/>
		<xs:element name="enabled" type="xs:boolean" default="true" minOccurs="0"/>
		<xs:element name="overwrite_mode" type="channel_overwrite_mode_type" default="DISCARD" minOccurs="0"/>
		<xs:element name="subbuffer_size" type="uint64_type" minOccurs="0"/> <!-- bytes -->
		<xs:element name="subbuffer_count" type="uint64_type" default="4" minOccurs="0"/>
		<xs:element name="switch_timer_interval" type="uint32_type" default="0" minOccurs="0"/>  <!-- usec -->
		<xs:element name="read_timer_interval" type="uint32_type"/>  <!-- usec -->
		<xs:element name="blocking_timeout" type="blocking_timeout_type" default="0" minOccurs="0" /> <!-- usec -->
		<xs:element name="output_type" type="event_output_type"/>
		<xs:element name="tracefile_size" type="uint64_type" default="0" minOccurs="0"/> <!-- bytes -->
		<xs:element name="tracefile_count" type="uint64_type" default="0" minOccurs="0"/>
		<xs:element name="live_timer_interval" type="uint32_type" default="0" minOccurs="0"/> <!-- usec -->
		<xs:element name="events" type="event_list_type" minOccurs="0"/>
		<xs:element name="contexts" type="event_context_list_type" minOccurs="0"/>
		<xs:element name="monitor_timer_interval" type="uint64_type" default="0" minOccurs="0"/>  <!-- usec -->
	</xs:all>
</xs:complexType>

<!-- Maps to the lttng_domain_type enum -->
<xs:simpleType name="domain_type_type">
	<xs:restriction base="xs:string">
		<xs:enumeration value="KERNEL"/>
		<xs:enumeration value="UST"/>
		<xs:enumeration value="JUL"/>
		<xs:enumeration value="LOG4J"/>
		<xs:enumeration value="PYTHON"/>
	</xs:restriction>
</xs:simpleType>

<!-- Maps to the lttng_buffer_type enum -->
<xs:simpleType name="domain_buffer_type">
	<xs:restriction base="xs:string">
		<xs:enumeration value="PER_PID"/>
		<xs:enumeration value="PER_UID"/>
		<xs:enumeration value="GLOBAL"/>
	</xs:restriction>
</xs:simpleType>

<xs:complexType name="channel_list_type">
	<xs:sequence>
		<xs:element name="channel" type="channel_type" minOccurs="0" maxOccurs="unbounded" />
	</xs:sequence>
</xs:complexType>

<xs:complexType name="pid_value_type">
	<xs:choice minOccurs="0">
		<xs:element name="id" type="xs:integer" />
	</xs:choice>
</xs:complexType>

<!-- Maps to a list of pid_process_attr_values-->
<xs:complexType name="pid_process_attr_values_type">
	<xs:sequence>
		<xs:choice minOccurs="0" maxOccurs="unbounded" >
			<xs:element name="pid" type="pid_value_type" />
		</xs:choice>
	</xs:sequence>
</xs:complexType>

<!-- Maps to a pid_process_attr_tracker-->
<xs:complexType name="pid_process_attr_tracker_type">
	<xs:all>
		<xs:element name="process_attr_values" type="pid_process_attr_values_type" />
	</xs:all>
</xs:complexType>

<xs:complexType name="vpid_value_type">
	<xs:all>
		<xs:element name="id" type="xs:integer" />
	</xs:all>
</xs:complexType>

<!-- Maps to a list of vpid_process_attr_values-->
<xs:complexType name="vpid_process_attr_values_type">
	<xs:sequence>
		<xs:element name="vpid" type="vpid_value_type" minOccurs="0" maxOccurs="unbounded" />
	</xs:sequence>
</xs:complexType>

<!-- Maps to a pid_process_attr_tracker-->
<xs:complexType name="vpid_process_attr_tracker_type">
	<xs:all>
		<xs:element name="process_attr_values" type="vpid_process_attr_values_type" />
	</xs:all>
</xs:complexType>

<xs:complexType name="uid_value_type">
	<xs:choice>
		<xs:element name="id" type="xs:integer" />
		<xs:element name="name" type="xs:string" />
	</xs:choice>
</xs:complexType>

<!-- Maps to a list of uid_process_attr_values-->
<xs:complexType name="uid_process_attr_values_type">
	<xs:sequence>
		<xs:element name="uid" type="uid_value_type" minOccurs="0" maxOccurs="unbounded" />
	</xs:sequence>
</xs:complexType>

<!-- Maps to a uid_process_attr_tracker-->
<xs:complexType name="uid_process_attr_tracker_type">
	<xs:all>
		<xs:element name="process_attr_values" type="uid_process_attr_values_type" />
	</xs:all>
</xs:complexType>

<xs:complexType name="vuid_value_type">
	<xs:choice>
		<xs:element name="id" type="xs:integer" />
		<xs:element name="name" type="xs:string" />
	</xs:choice>
</xs:complexType>

<!-- Maps to a list of vuid_process_attr_values-->
<xs:complexType name="vuid_process_attr_values_type">
	<xs:sequence>
		<xs:element name="vuid" type="vuid_value_type" minOccurs="0" maxOccurs="unbounded" />
	</xs:sequence>
</xs:complexType>

<!-- Maps to a vuid_process_attr_tracker-->
<xs:complexType name="vuid_process_attr_tracker_type">
	<xs:all>
		<xs:element name="process_attr_values" type="vuid_process_attr_values_type" />
	</xs:all>
</xs:complexType>

<xs:complexType name="gid_value_type">
	<xs:choice>
		<xs:element name="id" type="xs:integer" />
		<xs:element name="name" type="xs:string" />
	</xs:choice>
</xs:complexType>

<!-- Maps to a list of gid_process_attr_values-->
<xs:complexType name="gid_process_attr_values_type">
	<xs:sequence>
		<xs:element name="gid" type="gid_value_type" minOccurs="0" maxOccurs="unbounded" />
	</xs:sequence>
</xs:complexType>

<!-- Maps to a gid_process_attr_tracker-->
<xs:complexType name="gid_process_attr_tracker_type">
	<xs:all>
		<xs:element name="process_attr_values" type="gid_process_attr_values_type" />
	</xs:all>
</xs:complexType>

<xs:complexType name="vgid_value_type">
	<xs:choice>
		<xs:element name="id" type="xs:integer" />
		<xs:element name="name" type="xs:string" />
	</xs:choice>
</xs:complexType>

<!-- Maps to a list of vgid_process_attr_values-->
<xs:complexType name="vgid_process_attr_values_type">
	<xs:sequence>
		<xs:element name="vgid" type="vgid_value_type" minOccurs="0" maxOccurs="unbounded" />
	</xs:sequence>
</xs:complexType>

<!-- Maps to a vgid_process_attr_tracker-->
<xs:complexType name="vgid_process_attr_tracker_type">
	<xs:all>
		<xs:element name="process_attr_values" type="vgid_process_attr_values_type" />
	</xs:all>
</xs:complexType>

<!-- Maps to a list of trackers-->
<xs:complexType name="process_attr_tracker_type">
	<xs:sequence>
		<xs:choice minOccurs="0" maxOccurs="unbounded" >
			<xs:element name="pid_process_attr_tracker" type="pid_process_attr_tracker_type" maxOccurs="1" />
			<xs:element name="vpid_process_attr_tracker" type="vpid_process_attr_tracker_type" maxOccurs="1" />
			<xs:element name="uid_process_attr_tracker" type="uid_process_attr_tracker_type" maxOccurs="1" />
			<xs:element name="vuid_process_attr_tracker" type="vuid_process_attr_tracker_type" maxOccurs="1" />
			<xs:element name="gid_process_attr_tracker" type="gid_process_attr_tracker_type" maxOccurs="1" />
			<xs:element name="vgid_process_attr_tracker" type="vgid_process_attr_tracker_type" maxOccurs="1" />
		</xs:choice>
	</xs:sequence>
</xs:complexType>

<xs:complexType name="pid_target_type">
	<xs:all>
		<xs:element name="pid" type="xs:integer" />
	</xs:all>
</xs:complexType>

<!-- Maps to a list of pid_targets (legacy)-->
<xs:complexType name="targets_type">
	<xs:sequence>
		<xs:choice>
			<xs:element name="pid_target" type="pid_target_type" minOccurs="0" maxOccurs="unbounded" />
		</xs:choice>
	</xs:sequence>
</xs:complexType>

<!-- Maps to a pid_tracker (legacy)-->
<xs:complexType name="pid_tracker_type">
	<xs:all>
		<xs:element name="targets" type="targets_type" />
	</xs:all>
</xs:complexType>

<!-- Maps to a list of trackers (legacy)-->
<xs:complexType name="trackers_type">
	<xs:sequence minOccurs="0" maxOccurs="unbounded">
		<xs:element name="pid_tracker" type="pid_tracker_type" maxOccurs="1" />
	</xs:sequence>
</xs:complexType>

<!-- Maps to struct lttng_domain, contains channels and pid_process_attr_tracker -->
<xs:complexType name="domain_type">
	<xs:all>
		<xs:element name="type" type="domain_type_type"/>
		<xs:element name="buffer_type" type="domain_buffer_type"/>
		<xs:element name="channels" type="channel_list_type" minOccurs="0"/>
		<xs:element name="process_attr_trackers" type="process_attr_tracker_type" minOccurs="0"/>
		<!-- Support of legacy tracker specification -->
		<xs:element name="trackers" type="trackers_type" minOccurs="0"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="periodic_rotation_schedule_type">
	<xs:all>
		<xs:element name="time_us" type="uint64_type" minOccurs="0" />
	</xs:all>
</xs:complexType>

<xs:complexType name="size_threshold_rotation_schedule_type">
	<xs:all>
		<xs:element name="bytes" type="uint64_type" minOccurs="0" />
	</xs:all>
</xs:complexType>

<xs:complexType name="rotation_schedule_type">
	<xs:sequence>
		<xs:choice maxOccurs="unbounded">
			<xs:element name="periodic" type="periodic_rotation_schedule_type" maxOccurs="unbounded" />
			<xs:element name="size_threshold" type="size_threshold_rotation_schedule_type" maxOccurs="unbounded" />
		</xs:choice>
	</xs:sequence>
</xs:complexType>

<xs:complexType name="session_attributes_type">
	<xs:all>
		<xs:element name="snapshot_mode" type="xs:boolean" minOccurs="0"/>
		<xs:element name="live_timer_interval" type="uint32_type" minOccurs="0"/> <!-- usec -->
		<xs:element name="rotation_schedules" type="rotation_schedule_type" minOccurs="0" />
	</xs:all>
</xs:complexType>

<xs:complexType name="domain_list_type">
	<xs:sequence>
		<xs:element name="domain" type="domain_type" minOccurs="0" maxOccurs="unbounded"/>
	</xs:sequence>
</xs:complexType>

<xs:complexType name="net_output_type">
	<xs:all>
		<xs:element name="control_uri" type="xs:string"/>
		<xs:element name="data_uri" type="xs:string"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="destination_type">
	<xs:choice>
		<xs:element name="path" type="xs:string"/>
		<xs:element name="net_output" type="net_output_type"/>
	</xs:choice>
</xs:complexType>

<xs:complexType name="consumer_output_type">
	<xs:all>
		<xs:element name="enabled" type="xs:boolean" default="true"/>
		<xs:element name="destination" type="destination_type"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="snapshot_output_type">
	<xs:all>
		<xs:element name="name" type="name_type"/>
		<xs:element name="max_size" type="uint64_type"/>
		<xs:element name="consumer_output" type="consumer_output_type"/>
	</xs:all>
</xs:complexType>

<xs:complexType name="snapshot_output_list_type">
	<xs:sequence>
		<xs:element name="output" type="snapshot_output_type" minOccurs="0" maxOccurs="unbounded"/>
	</xs:sequence>
</xs:complexType>

<xs:complexType name="session_output_type">
	<xs:choice>
		<xs:element name="snapshot_outputs" type="snapshot_output_list_type"/>
		<xs:element name="consumer_output" type="consumer_output_type"/>
	</xs:choice>
</xs:complexType>

<xs:complexType name="session_type">
	<xs:all>
		<xs:element name="name" type="name_type"/>
		<xs:element name="shared_memory_path" type="xs:string" minOccurs="0"/>
		<xs:element name="domains" type="domain_list_type" minOccurs="0"/>
		<xs:element name="started" type="xs:boolean" default="0" minOccurs="0"/>
		<xs:element name="attributes" type="session_attributes_type" minOccurs="0"/>
		<xs:element name="output" type="session_output_type" minOccurs="0"/>
	</xs:all>
</xs:complexType>

<xs:element name="sessions">
	<xs:complexType>
		<xs:sequence>
			<xs:element name="session" type="session_type" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>
</xs:element>

</xs:schema>
