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_COMMANDS_H | |
| 19 | #define NOTIFICATION_THREAD_COMMANDS_H | |
| 20 | ||
| 21 | #include <lttng/domain.h> | |
| 22 | #include <lttng/lttng-error.h> | |
| 23 | #include <urcu/rculfhash.h> | |
| 24 | #include "notification-thread.h" | |
| 25 | ||
| 26 | struct notification_thread_data; | |
| 27 | struct lttng_trigger; | |
| 28 | ||
| 29 | enum notification_thread_command_type { | |
| 30 | NOTIFICATION_COMMAND_TYPE_REGISTER_TRIGGER, | |
| 31 | NOTIFICATION_COMMAND_TYPE_UNREGISTER_TRIGGER, | |
| 32 | NOTIFICATION_COMMAND_TYPE_ADD_CHANNEL, | |
| 33 | NOTIFICATION_COMMAND_TYPE_REMOVE_CHANNEL, | |
| 34 | NOTIFICATION_COMMAND_TYPE_QUIT, | |
| 35 | }; | |
| 36 | ||
| 37 | struct channel_key { | |
| 38 | uint64_t key; | |
| 39 | enum lttng_domain_type domain; | |
| 40 | }; | |
| 41 | ||
| 42 | struct channel_info { | |
| 43 | struct channel_key key; | |
| 44 | char *session_name; | |
| 45 | uid_t uid; | |
| 46 | gid_t gid; | |
| 47 | char *channel_name; | |
| 48 | uint64_t capacity; | |
| 49 | struct cds_lfht_node channels_ht_node; | |
| 50 | }; | |
| 51 | ||
| 52 | struct notification_thread_command { | |
| 53 | struct cds_list_head cmd_list_node; | |
| 54 | ||
| 55 | enum notification_thread_command_type type; | |
| 56 | union { | |
| 57 | /* Register/Unregister trigger. */ | |
| 58 | struct lttng_trigger *trigger; | |
| 59 | /* Add channel. */ | |
| 60 | struct channel_info add_channel; | |
| 61 | /* Remove channel. */ | |
| 62 | struct { | |
| 63 | uint64_t key; | |
| 64 | enum lttng_domain_type domain; | |
| 65 | } remove_channel; | |
| 66 | } parameters; | |
| 67 | ||
| 68 | /* Futex on which to wait for command reply (optional). */ | |
| 69 | int32_t reply_futex; | |
| 70 | enum lttng_error_code reply_code; | |
| 71 | }; | |
| 72 | ||
| 73 | enum lttng_error_code notification_thread_command_register_trigger( | |
| 74 | struct notification_thread_handle *handle, | |
| 75 | struct lttng_trigger *trigger); | |
| 76 | ||
| 77 | enum lttng_error_code notification_thread_command_unregister_trigger( | |
| 78 | struct notification_thread_handle *handle, | |
| 79 | struct lttng_trigger *trigger); | |
| 80 | ||
| 81 | enum lttng_error_code notification_thread_command_add_channel( | |
| 82 | struct notification_thread_handle *handle, | |
| 83 | char *session_name, uid_t uid, gid_t gid, | |
| 84 | char *channel_name, uint64_t key, | |
| 85 | enum lttng_domain_type domain, uint64_t capacity); | |
| 86 | ||
| 87 | enum lttng_error_code notification_thread_command_remove_channel( | |
| 88 | struct notification_thread_handle *handle, | |
| 89 | uint64_t key, enum lttng_domain_type domain); | |
| 90 | ||
| 91 | void notification_thread_command_quit( | |
| 92 | struct notification_thread_handle *handle); | |
| 93 | ||
| 94 | #endif /* NOTIFICATION_THREAD_COMMANDS_H */ |