projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| ab0ee2ca JG |
1 | /* |
| 2 | * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@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 NOTIFICATION_THREAD_H | |
| 19 | #define NOTIFICATION_THREAD_H | |
| 20 | ||
| 21 | #include <urcu/list.h> | |
| 22 | #include <urcu.h> | |
| 23 | #include <urcu/rculfhash.h> | |
| 24 | #include <lttng/trigger/trigger.h> | |
| 25 | #include <common/pipe.h> | |
| 26 | #include <common/compat/poll.h> | |
| 27 | #include <common/hashtable/hashtable.h> | |
| 28 | #include <pthread.h> | |
| 29 | ||
| 30 | struct notification_thread_handle { | |
| 31 | /* | |
| 32 | * Queue of struct notification command. | |
| 33 | * event_fd must be WRITE(2) to signal that a new command | |
| 34 | * has been enqueued. | |
| 35 | */ | |
| 36 | struct { | |
| 37 | int event_fd; | |
| 38 | struct cds_list_head list; | |
| 39 | pthread_mutex_t lock; | |
| 40 | } cmd_queue; | |
| 41 | /* | |
| 42 | * Read side of pipes used to receive channel status info collected | |
| 43 | * by the various consumer daemons. | |
| 44 | */ | |
| 45 | struct { | |
| 46 | int ust32_consumer; | |
| 47 | int ust64_consumer; | |
| 48 | int kernel_consumer; | |
| 49 | } channel_monitoring_pipes; | |
| 50 | }; | |
| 51 | ||
| 52 | struct notification_thread_state { | |
| 53 | int notification_channel_socket; | |
| 54 | struct lttng_poll_event events; | |
| 55 | struct cds_lfht *client_socket_ht; | |
| 56 | struct cds_lfht *channel_triggers_ht; | |
| 57 | struct cds_lfht *channel_state_ht; | |
| 58 | struct cds_lfht *notification_trigger_clients_ht; | |
| 59 | struct cds_lfht *channels_ht; | |
| 60 | struct cds_lfht *triggers_ht; | |
| 61 | }; | |
| 62 | ||
| 63 | /* notification_thread_data takes ownership of the channel monitor pipes. */ | |
| 64 | struct notification_thread_handle *notification_thread_handle_create( | |
| 65 | struct lttng_pipe *ust32_channel_monitor_pipe, | |
| 66 | struct lttng_pipe *ust64_channel_monitor_pipe, | |
| 67 | struct lttng_pipe *kernel_channel_monitor_pipe); | |
| 68 | void notification_thread_handle_destroy( | |
| 69 | struct notification_thread_handle *handle); | |
| 70 | ||
| 71 | void *thread_notification(void *data); | |
| 72 | ||
| 73 | #endif /* NOTIFICATION_THREAD_H */ |