| 1 | #ifndef LTTNG_RELAYD_H |
| 2 | #define LTTNG_RELAYD_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 2012 - Julien Desfossez <jdesfossez@efficios.com> |
| 6 | * David Goulet <dgoulet@efficios.com> |
| 7 | * 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License, version 2 only, |
| 11 | * as published by the Free Software Foundation. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 16 | * more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 21 | */ |
| 22 | |
| 23 | #include <limits.h> |
| 24 | #include <urcu.h> |
| 25 | #include <urcu/wfcqueue.h> |
| 26 | |
| 27 | #include <common/hashtable/hashtable.h> |
| 28 | |
| 29 | /* |
| 30 | * Queue used to enqueue relay requests |
| 31 | */ |
| 32 | struct relay_conn_queue { |
| 33 | struct cds_wfcq_head head; |
| 34 | struct cds_wfcq_tail tail; |
| 35 | int32_t futex; |
| 36 | }; |
| 37 | |
| 38 | /* |
| 39 | * Contains stream indexed by ID. This is important since many commands lookup |
| 40 | * streams only by ID thus also keeping them in this hash table makes the |
| 41 | * search O(1). |
| 42 | */ |
| 43 | extern struct lttng_ht *sessions_ht; |
| 44 | extern struct lttng_ht *relay_streams_ht; |
| 45 | extern struct lttng_ht *viewer_streams_ht; |
| 46 | |
| 47 | extern char *opt_output_path; |
| 48 | extern const char *tracing_group_name; |
| 49 | extern const char * const config_section_name; |
| 50 | |
| 51 | extern int thread_quit_pipe[2]; |
| 52 | |
| 53 | void lttng_relay_notify_ready(void); |
| 54 | int lttng_relay_stop_threads(void); |
| 55 | |
| 56 | #endif /* LTTNG_RELAYD_H */ |