SoW-2020-0002: Trace Hit Counters: trigger error reporting integration
[lttng-tools.git] / src / bin / lttng-sessiond / cmd.h
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2f77fc4b 1/*
ab5be9fa 2 * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
2f77fc4b 3 *
ab5be9fa 4 * SPDX-License-Identifier: GPL-2.0-only
2f77fc4b 5 *
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6 */
7
8#ifndef CMD_H
9#define CMD_H
10
11#include "context.h"
aa74bd72 12#include "lttng-sessiond.h"
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13#include "lttng/tracker.h"
14#include "session.h"
15#include <common/tracker.h>
2f77fc4b 16
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17struct notification_thread_handle;
18
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19/*
20 * A callback (and associated user data) that should be run after a command
21 * has been executed. No locks should be taken while executing this handler.
22 *
23 * The command's reply should not be sent until the handler has run and
24 * completed successfully. On failure, the handler's return code should
25 * be the only reply sent to the client.
26 */
27typedef enum lttng_error_code (*completion_handler_function)(void *);
28struct cmd_completion_handler {
29 completion_handler_function run;
30 void *data;
31};
32
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33/*
34 * Init the command subsystem. Must be called before using any of the functions
35 * above. This is called in the main() of the session daemon.
36 */
37void cmd_init(void);
38
39/* Session commands */
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40enum lttng_error_code cmd_create_session(struct command_ctx *cmd_ctx, int sock,
41 struct lttng_session_descriptor **return_descriptor);
e32d7f27 42int cmd_destroy_session(struct ltt_session *session,
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43 struct notification_thread_handle *notification_thread_handle,
44 int *sock_fd);
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45
46/* Channel commands */
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47int cmd_disable_channel(struct ltt_session *session,
48 enum lttng_domain_type domain, char *channel_name);
7972aab2 49int cmd_enable_channel(struct ltt_session *session,
df4f5a87 50 const struct lttng_domain *domain, const struct lttng_channel *attr,
56a37563 51 int wpipe);
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52
53/* Process attribute tracker commands */
54enum lttng_error_code cmd_process_attr_tracker_get_tracking_policy(
55 struct ltt_session *session,
55c9e7ca 56 enum lttng_domain_type domain,
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57 enum lttng_process_attr process_attr,
58 enum lttng_tracking_policy *policy);
59enum lttng_error_code cmd_process_attr_tracker_set_tracking_policy(
60 struct ltt_session *session,
61 enum lttng_domain_type domain,
62 enum lttng_process_attr process_attr,
63 enum lttng_tracking_policy policy);
64enum lttng_error_code cmd_process_attr_tracker_inclusion_set_add_value(
65 struct ltt_session *session,
55c9e7ca 66 enum lttng_domain_type domain,
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67 enum lttng_process_attr process_attr,
68 const struct process_attr_value *value);
69enum lttng_error_code cmd_process_attr_tracker_inclusion_set_remove_value(
70 struct ltt_session *session,
71 enum lttng_domain_type domain,
72 enum lttng_process_attr process_attr,
73 const struct process_attr_value *value);
74enum lttng_error_code cmd_process_attr_tracker_get_inclusion_set(
75 struct ltt_session *session,
76 enum lttng_domain_type domain,
77 enum lttng_process_attr process_attr,
78 struct lttng_process_attr_values **values);
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79
80/* Event commands */
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81int cmd_disable_event(struct ltt_session *session,
82 enum lttng_domain_type domain,
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83 const char *channel_name,
84 const struct lttng_event *event);
56a37563 85int cmd_add_context(struct ltt_session *session, enum lttng_domain_type domain,
df4f5a87 86 char *channel_name, const struct lttng_event_context *ctx, int kwpipe);
56a37563 87int cmd_set_filter(struct ltt_session *session, enum lttng_domain_type domain,
178191b3 88 char *channel_name, struct lttng_event *event,
2463b787 89 struct lttng_bytecode *bytecode);
df4f5a87 90int cmd_enable_event(struct ltt_session *session, const struct lttng_domain *domain,
025faf73 91 char *channel_name, struct lttng_event *event,
6b453b5e 92 char *filter_expression,
2463b787 93 struct lttng_bytecode *filter,
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94 struct lttng_event_exclusion *exclusion,
95 int wpipe);
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96
97/* Trace session action commands */
98int cmd_start_trace(struct ltt_session *session);
99int cmd_stop_trace(struct ltt_session *session);
100
101/* Consumer commands */
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102int cmd_register_consumer(struct ltt_session *session,
103 enum lttng_domain_type domain,
2f77fc4b 104 const char *sock_path, struct consumer_data *cdata);
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105int cmd_set_consumer_uri(struct ltt_session *session, size_t nb_uri,
106 struct lttng_uri *uris);
ffe60014 107int cmd_setup_relayd(struct ltt_session *session);
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108
109/* Listing commands */
110ssize_t cmd_list_domains(struct ltt_session *session,
111 struct lttng_domain **domains);
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112ssize_t cmd_list_events(enum lttng_domain_type domain,
113 struct ltt_session *session, char *channel_name,
e368fb43 114 struct lttng_payload *payload);
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115ssize_t cmd_list_channels(enum lttng_domain_type domain,
116 struct ltt_session *session, struct lttng_channel **channels);
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117ssize_t cmd_list_domains(struct ltt_session *session,
118 struct lttng_domain **domains);
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119void cmd_list_lttng_sessions(struct lttng_session *sessions,
120 size_t session_count, uid_t uid, gid_t gid);
56a37563 121ssize_t cmd_list_tracepoint_fields(enum lttng_domain_type domain,
2f77fc4b 122 struct lttng_event_field **fields);
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123ssize_t cmd_list_tracepoints(enum lttng_domain_type domain,
124 struct lttng_event **events);
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125ssize_t cmd_snapshot_list_outputs(struct ltt_session *session,
126 struct lttng_snapshot_output **outputs);
834978fd 127ssize_t cmd_list_syscalls(struct lttng_event **events);
2f77fc4b 128
6d805429 129int cmd_data_pending(struct ltt_session *session);
2f77fc4b 130
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131/* Snapshot */
132int cmd_snapshot_add_output(struct ltt_session *session,
df4f5a87 133 const struct lttng_snapshot_output *output, uint32_t *id);
6dc3064a 134int cmd_snapshot_del_output(struct ltt_session *session,
df4f5a87 135 const struct lttng_snapshot_output *output);
6dc3064a 136int cmd_snapshot_record(struct ltt_session *session,
df4f5a87 137 const struct lttng_snapshot_output *output, int wait);
6dc3064a 138
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139int cmd_set_session_shm_path(struct ltt_session *session,
140 const char *shm_path);
eded6438 141int cmd_regenerate_metadata(struct ltt_session *session);
c2561365 142int cmd_regenerate_statedump(struct ltt_session *session);
d7ba1388 143
b0880ae5 144int cmd_register_trigger(struct command_ctx *cmd_ctx, int sock,
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145 struct notification_thread_handle *notification_thread_handle,
146 struct lttng_trigger **return_trigger);
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147int cmd_unregister_trigger(struct command_ctx *cmd_ctx, int sock,
148 struct notification_thread_handle *notification_thread_handle);
149
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150int cmd_list_triggers(struct command_ctx *cmd_ctx,
151 struct notification_thread_handle *notification_thread_handle,
152 struct lttng_triggers **return_triggers);
153
5c408ad8 154int cmd_rotate_session(struct ltt_session *session,
7fdbed1c 155 struct lttng_rotate_session_return *rotate_return,
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156 bool quiet_rotation,
157 enum lttng_trace_chunk_command_type command);
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158int cmd_rotate_get_info(struct ltt_session *session,
159 struct lttng_rotation_get_info_return *info_return,
160 uint64_t rotate_id);
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161int cmd_rotation_set_schedule(struct ltt_session *session,
162 bool activate, enum lttng_rotation_schedule_type schedule_type,
163 uint64_t value,
90936dcf 164 struct notification_thread_handle *notification_thread_handle);
5c408ad8 165
a503e1ef 166const struct cmd_completion_handler *cmd_pop_completion_handler(void);
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167int start_kernel_session(struct ltt_kernel_session *ksess);
168int stop_kernel_session(struct ltt_kernel_session *ksess);
a503e1ef 169
2f77fc4b 170#endif /* CMD_H */
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