projects / deliverable / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 6e0be6cc JD |
1 | /* |
| 2 | * Copyright (C) 2017 - Julien Desfossez <jdesfossez@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 ROTATION_THREAD_H | |
| 19 | #define ROTATION_THREAD_H | |
| 20 | ||
| 21 | #include <urcu/list.h> | |
| 22 | #include <urcu.h> | |
| 23 | #include <urcu/rculfhash.h> | |
| 24 | #include <lttng/domain.h> | |
| 25 | #include <common/pipe.h> | |
| 26 | #include <common/compat/poll.h> | |
| 27 | #include <common/hashtable/hashtable.h> | |
| 28 | #include <pthread.h> | |
| 29 | ||
| 6e0be6cc JD |
30 | struct rotation_channel_key { |
| 31 | uint64_t key; | |
| 32 | enum lttng_domain_type domain; | |
| 33 | }; | |
| 34 | ||
| 35 | struct rotation_channel_info { | |
| 36 | union { | |
| 37 | struct ltt_kernel_channel *kchan; | |
| 38 | struct ltt_ust_channel *uchan; | |
| 39 | } chan; | |
| 40 | struct ltt_session *session; | |
| 41 | struct rotation_channel_key channel_key; | |
| 42 | struct cds_lfht_node rotate_channels_ht_node; | |
| 43 | }; | |
| 44 | ||
| 45 | struct rotation_thread_handle { | |
| 46 | /* | |
| 47 | * Read side of pipes used to receive channel status info collected | |
| 48 | * by the various consumer daemons. | |
| 49 | */ | |
| 50 | int ust32_consumer; | |
| 51 | int ust64_consumer; | |
| 52 | int kernel_consumer; | |
| 53 | int thread_quit_pipe; | |
| 55c2a7f9 | 54 | int rotate_timer_pipe; |
| 6e0be6cc JD |
55 | }; |
| 56 | ||
| 57 | struct rotation_thread_state { | |
| 58 | struct lttng_poll_event events; | |
| 59 | }; | |
| 60 | ||
| 61 | /* rotation_thread_data takes ownership of the channel rotate pipes. */ | |
| 62 | struct rotation_thread_handle *rotation_thread_handle_create( | |
| 63 | struct lttng_pipe *ust32_channel_rotate_pipe, | |
| 64 | struct lttng_pipe *ust64_channel_rotate_pipe, | |
| 65 | struct lttng_pipe *kernel_channel_rotate_pipe, | |
| 55c2a7f9 | 66 | int thread_quit_pipe, int rotate_timer_pipe); |
| 6e0be6cc JD |
67 | |
| 68 | void rotation_thread_handle_destroy( | |
| 69 | struct rotation_thread_handle *handle); | |
| 70 | ||
| 71 | void rotation_thread_quit(struct rotation_thread_handle *handle); | |
| 72 | ||
| 73 | int rotate_add_channel_pending(uint64_t key, enum lttng_domain_type domain, | |
| 74 | struct ltt_session *session); | |
| 6e0be6cc JD |
75 | |
| 76 | void *thread_rotation(void *data); | |
| 77 | ||
| 6e0be6cc | 78 | #endif /* ROTATION_THREAD_H */ |