| 1 | /* |
| 2 | * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0-only |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #ifndef NOTIFICATION_THREAD_COMMANDS_H |
| 9 | #define NOTIFICATION_THREAD_COMMANDS_H |
| 10 | |
| 11 | #include <lttng/domain.h> |
| 12 | #include <lttng/lttng-error.h> |
| 13 | #include <urcu/rculfhash.h> |
| 14 | #include "notification-thread.h" |
| 15 | #include "notification-thread-internal.h" |
| 16 | #include "notification-thread-events.h" |
| 17 | #include <common/waiter.h> |
| 18 | |
| 19 | struct notification_thread_data; |
| 20 | struct lttng_trigger; |
| 21 | |
| 22 | enum notification_thread_command_type { |
| 23 | NOTIFICATION_COMMAND_TYPE_REGISTER_TRIGGER, |
| 24 | NOTIFICATION_COMMAND_TYPE_UNREGISTER_TRIGGER, |
| 25 | NOTIFICATION_COMMAND_TYPE_ADD_CHANNEL, |
| 26 | NOTIFICATION_COMMAND_TYPE_REMOVE_CHANNEL, |
| 27 | NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_ONGOING, |
| 28 | NOTIFICATION_COMMAND_TYPE_SESSION_ROTATION_COMPLETED, |
| 29 | NOTIFICATION_COMMAND_TYPE_QUIT, |
| 30 | }; |
| 31 | |
| 32 | struct notification_thread_command { |
| 33 | struct cds_list_head cmd_list_node; |
| 34 | |
| 35 | enum notification_thread_command_type type; |
| 36 | union { |
| 37 | /* Register/Unregister trigger. */ |
| 38 | struct lttng_trigger *trigger; |
| 39 | /* Add channel. */ |
| 40 | struct { |
| 41 | struct { |
| 42 | const char *name; |
| 43 | uid_t uid; |
| 44 | gid_t gid; |
| 45 | } session; |
| 46 | struct { |
| 47 | const char *name; |
| 48 | enum lttng_domain_type domain; |
| 49 | uint64_t key; |
| 50 | uint64_t capacity; |
| 51 | } channel; |
| 52 | } add_channel; |
| 53 | /* Remove channel. */ |
| 54 | struct { |
| 55 | uint64_t key; |
| 56 | enum lttng_domain_type domain; |
| 57 | } remove_channel; |
| 58 | struct { |
| 59 | const char *session_name; |
| 60 | uid_t uid; |
| 61 | gid_t gid; |
| 62 | uint64_t trace_archive_chunk_id; |
| 63 | /* Weak reference. */ |
| 64 | struct lttng_trace_archive_location *location; |
| 65 | } session_rotation; |
| 66 | } parameters; |
| 67 | |
| 68 | /* lttng_waiter on which to wait for command reply (optional). */ |
| 69 | struct lttng_waiter reply_waiter; |
| 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 session_uid, gid_t session_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 | enum lttng_error_code notification_thread_command_session_rotation_ongoing( |
| 92 | struct notification_thread_handle *handle, |
| 93 | const char *session_name, uid_t session_uid, gid_t session_gid, |
| 94 | uint64_t trace_archive_chunk_id); |
| 95 | |
| 96 | /* Ownership of location is transferred. */ |
| 97 | enum lttng_error_code notification_thread_command_session_rotation_completed( |
| 98 | struct notification_thread_handle *handle, |
| 99 | const char *session_name, uid_t session_uid, gid_t session_gid, |
| 100 | uint64_t trace_archive_chunk_id, |
| 101 | struct lttng_trace_archive_location *location); |
| 102 | |
| 103 | void notification_thread_command_quit( |
| 104 | struct notification_thread_handle *handle); |
| 105 | |
| 106 | #endif /* NOTIFICATION_THREAD_COMMANDS_H */ |