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
  39 /* Channel commands */
  40 int cmd_disable_channel(struct ltt_session *session,
  41                 enum lttng_domain_type domain, char *channel_name);
  42 int cmd_enable_channel(struct ltt_session *session,
  43                 struct lttng_domain *domain, struct lttng_channel *attr,
  44                 int wpipe);
  45 int cmd_track_pid(struct ltt_session *session, enum lttng_domain_type domain,
  46                 int pid);
  47 int cmd_untrack_pid(struct ltt_session *session, enum lttng_domain_type domain,
  48                 int pid);
  49
  50 /* Event commands */
  51 int cmd_disable_event(struct ltt_session *session,
  52                 enum lttng_domain_type domain,
  53                 char *channel_name,
  54                 struct lttng_event *event);
  55 int cmd_add_context(struct ltt_session *session, enum lttng_domain_type domain,
  56                 char *channel_name, struct lttng_event_context *ctx, int kwpipe);
  57 int cmd_set_filter(struct ltt_session *session, enum lttng_domain_type domain,
  58                 char *channel_name, struct lttng_event *event,
  59                 struct lttng_filter_bytecode *bytecode);
  60 int cmd_enable_event(struct ltt_session *session, struct lttng_domain *domain,
  61                 char *channel_name, struct lttng_event *event,
  62                 char *filter_expression,
  63                 struct lttng_filter_bytecode *filter,
  64                 struct lttng_event_exclusion *exclusion,
  65                 int wpipe);
  66
  67 /* Trace session action commands */
  68 int cmd_start_trace(struct ltt_session *session);
  69 int cmd_stop_trace(struct ltt_session *session);
  70
  71 /* Consumer commands */
  72 int cmd_register_consumer(struct ltt_session *session,
  73                 enum lttng_domain_type domain,
  74                 const char *sock_path, struct consumer_data *cdata);
  75 int cmd_set_consumer_uri(struct ltt_session *session, size_t nb_uri,
  76                 struct lttng_uri *uris);
  77 int cmd_setup_relayd(struct ltt_session *session);
  78
  79 /* Listing commands */
  80 ssize_t cmd_list_domains(struct ltt_session *session,
  81                 struct lttng_domain **domains);
  82 ssize_t cmd_list_events(enum lttng_domain_type domain,
  83                 struct ltt_session *session, char *channel_name,
  84                 struct lttng_event **events, size_t *total_size);
  85 ssize_t cmd_list_channels(enum lttng_domain_type domain,
  86                 struct ltt_session *session, struct lttng_channel **channels);
  87 ssize_t cmd_list_domains(struct ltt_session *session,
  88                 struct lttng_domain **domains);
  89 void cmd_list_lttng_sessions(struct lttng_session *sessions, uid_t uid,
  90                 gid_t gid);
  91 ssize_t cmd_list_tracepoint_fields(enum lttng_domain_type domain,
  92                 struct lttng_event_field **fields);
  93 ssize_t cmd_list_tracepoints(enum lttng_domain_type domain,
  94                 struct lttng_event **events);
  95 ssize_t cmd_snapshot_list_outputs(struct ltt_session *session,
  96                 struct lttng_snapshot_output **outputs);
  97 ssize_t cmd_list_syscalls(struct lttng_event **events);
  98 ssize_t cmd_list_tracker_pids(struct ltt_session *session,
  99                 enum lttng_domain_type domain, int32_t **pids);
 100
 101 int cmd_data_pending(struct ltt_session *session);
 102
 103 /* Snapshot */
 104 int cmd_snapshot_add_output(struct ltt_session *session,
 105                 struct lttng_snapshot_output *output, uint32_t *id);
 106 int cmd_snapshot_del_output(struct ltt_session *session,
 107                 struct lttng_snapshot_output *output);
 108 int cmd_snapshot_record(struct ltt_session *session,
 109                 struct lttng_snapshot_output *output, int wait);
 110
 111 int cmd_set_session_shm_path(struct ltt_session *session,
 112                 const char *shm_path);
 113 int cmd_regenerate_metadata(struct ltt_session *session);
 114 int cmd_regenerate_statedump(struct ltt_session *session);
 115
 116 int cmd_register_trigger(struct command_ctx *cmd_ctx, int sock,
 117                 struct notification_thread_handle *notification_thread_handle);
 118 int cmd_unregister_trigger(struct command_ctx *cmd_ctx, int sock,
 119                 struct notification_thread_handle *notification_thread_handle);
 120
 121 #endif /* CMD_H */