src/bin/lttng-sessiond/cmd.h

   1 /*
   2  * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License, version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with
  14  * this program; if not, write to the Free Software Foundation, Inc., 51
  15  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  16  */
  17
  18 #ifndef CMD_H
  19 #define CMD_H
  20
  21 #include "context.h"
  22 #include "session.h"
  23
  24 struct notification_thread_handle;
  25
  26 /*
  27  * Init the command subsystem. Must be called before using any of the functions
  28  * above. This is called in the main() of the session daemon.
  29  */
  30 void cmd_init(void);
  31
  32 /* Session commands */
  33 int cmd_create_session_uri(char *name, struct lttng_uri *uris,
  34                 size_t nb_uri, lttng_sock_cred *creds, unsigned int live_timer);
  35 int cmd_create_session_snapshot(char *name, struct lttng_uri *uris,
  36                 size_t nb_uri, lttng_sock_cred *creds);
  37 int cmd_destroy_session(struct ltt_session *session, int wpipe,
  38                 struct notification_thread_handle *notification_thread_handle);
  39
  40 /* Channel commands */
  41 int cmd_disable_channel(struct ltt_session *session,
  42                 enum lttng_domain_type domain, char *channel_name);
  43 int cmd_enable_channel(struct ltt_session *session,
  44                 struct lttng_domain *domain, struct lttng_channel *attr,
  45                 int wpipe);
  46 int cmd_track_pid(struct ltt_session *session, enum lttng_domain_type domain,
  47                 int pid);
  48 int cmd_untrack_pid(struct ltt_session *session, enum lttng_domain_type domain,
  49                 int pid);
  50
  51 /* Event commands */
  52 int cmd_disable_event(struct ltt_session *session,
  53                 enum lttng_domain_type domain,
  54                 char *channel_name,
  55                 struct lttng_event *event);
  56 int cmd_add_context(struct ltt_session *session, enum lttng_domain_type domain,
  57                 char *channel_name, struct lttng_event_context *ctx, int kwpipe);
  58 int cmd_set_filter(struct ltt_session *session, enum lttng_domain_type domain,
  59                 char *channel_name, struct lttng_event *event,
  60                 struct lttng_filter_bytecode *bytecode);
  61 int cmd_enable_event(struct ltt_session *session, struct lttng_domain *domain,
  62                 char *channel_name, struct lttng_event *event,
  63                 char *filter_expression,
  64                 struct lttng_filter_bytecode *filter,
  65                 struct lttng_event_exclusion *exclusion,
  66                 int wpipe);
  67
  68 /* Trace session action commands */
  69 int cmd_start_trace(struct ltt_session *session);
  70 int cmd_stop_trace(struct ltt_session *session);
  71
  72 /* Consumer commands */
  73 int cmd_register_consumer(struct ltt_session *session,
  74                 enum lttng_domain_type domain,
  75                 const char *sock_path, struct consumer_data *cdata);
  76 int cmd_set_consumer_uri(struct ltt_session *session, size_t nb_uri,
  77                 struct lttng_uri *uris);
  78 int cmd_setup_relayd(struct ltt_session *session);
  79
  80 /* Listing commands */
  81 ssize_t cmd_list_domains(struct ltt_session *session,
  82                 struct lttng_domain **domains);
  83 ssize_t cmd_list_events(enum lttng_domain_type domain,
  84                 struct ltt_session *session, char *channel_name,
  85                 struct lttng_event **events, size_t *total_size);
  86 ssize_t cmd_list_channels(enum lttng_domain_type domain,
  87                 struct ltt_session *session, struct lttng_channel **channels);
  88 ssize_t cmd_list_domains(struct ltt_session *session,
  89                 struct lttng_domain **domains);
  90 void cmd_list_lttng_sessions(struct lttng_session *sessions, uid_t uid,
  91                 gid_t gid);
  92 ssize_t cmd_list_tracepoint_fields(enum lttng_domain_type domain,
  93                 struct lttng_event_field **fields);
  94 ssize_t cmd_list_tracepoints(enum lttng_domain_type domain,
  95                 struct lttng_event **events);
  96 ssize_t cmd_snapshot_list_outputs(struct ltt_session *session,
  97                 struct lttng_snapshot_output **outputs);
  98 ssize_t cmd_list_syscalls(struct lttng_event **events);
  99 ssize_t cmd_list_tracker_pids(struct ltt_session *session,
 100                 enum lttng_domain_type domain, int32_t **pids);
 101
 102 int cmd_data_pending(struct ltt_session *session);
 103
 104 /* Snapshot */
 105 int cmd_snapshot_add_output(struct ltt_session *session,
 106                 struct lttng_snapshot_output *output, uint32_t *id);
 107 int cmd_snapshot_del_output(struct ltt_session *session,
 108                 struct lttng_snapshot_output *output);
 109 int cmd_snapshot_record(struct ltt_session *session,
 110                 struct lttng_snapshot_output *output, int wait);
 111
 112 int cmd_set_session_shm_path(struct ltt_session *session,
 113                 const char *shm_path);
 114 int cmd_regenerate_metadata(struct ltt_session *session);
 115 int cmd_regenerate_statedump(struct ltt_session *session);
 116
 117 int cmd_register_trigger(struct command_ctx *cmd_ctx, int sock,
 118                 struct notification_thread_handle *notification_thread_handle);
 119 int cmd_unregister_trigger(struct command_ctx *cmd_ctx, int sock,
 120                 struct notification_thread_handle *notification_thread_handle);
 121
 122 int cmd_rotate_session(struct ltt_session *session,
 123                 struct lttng_rotate_session_return *rotate_return);
 124 int cmd_rotate_get_info(struct ltt_session *session,
 125                 struct lttng_rotation_get_info_return *info_return,
 126                 uint64_t rotate_id);
 127 int cmd_session_get_current_output(struct ltt_session *session,
 128                 struct lttng_session_get_current_output_return *output_return);
 129 int cmd_rotation_set_schedule(struct ltt_session *session, uint64_t timer_us,
 130                 uint64_t size,
 131                 struct notification_thread_handle *notification_thread_handle);
 132
 133 #endif /* CMD_H */