projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 8c0faa1d DG |
1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
| fac6795d | 3 | * |
| d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License, version 2 only, | |
| 6 | * as published by the Free Software Foundation. | |
| 8c0faa1d | 7 | * |
| fac6795d DG |
8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| d14d33bf | 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| fac6795d | 11 | * GNU General Public License for more details. |
| 8c0faa1d | 12 | * |
| d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| fac6795d DG |
16 | */ |
| 17 | ||
| 18 | #ifndef _LTT_SESSIOND_H | |
| 19 | #define _LTT_SESSIOND_H | |
| 20 | ||
| 099e26bd | 21 | #define _LGPL_SOURCE |
| f6a9efaa | 22 | #include <urcu.h> |
| 099e26bd DG |
23 | #include <urcu/wfqueue.h> |
| 24 | ||
| 10a8a223 | 25 | #include <common/sessiond-comm/sessiond-comm.h> |
| d0b96690 | 26 | #include <common/compat/poll.h> |
| 730389d9 | 27 | #include <common/compat/socket.h> |
| 10a8a223 DG |
28 | |
| 29 | #include "session.h" | |
| 56fff090 | 30 | #include "ust-app.h" |
| 099e26bd | 31 | |
| 686204ab MD |
32 | extern const char default_home_dir[], |
| 33 | default_tracing_group[], | |
| 34 | default_ust_sock_dir[], | |
| 35 | default_global_apps_pipe[]; | |
| fac6795d | 36 | |
| 2f77fc4b DG |
37 | /* Set in main.c at boot time of the daemon */ |
| 38 | extern int kernel_tracer_fd; | |
| 39 | ||
| 5461b305 DG |
40 | /* |
| 41 | * This contains extra data needed for processing a command received by the | |
| 42 | * session daemon from the lttng client. | |
| 43 | */ | |
| 44 | struct command_ctx { | |
| 45 | int ust_sock; | |
| 46 | unsigned int lttng_msg_size; | |
| 47 | struct ltt_session *session; | |
| 48 | struct lttcomm_lttng_msg *llm; | |
| 49 | struct lttcomm_session_msg *lsm; | |
| 730389d9 | 50 | lttng_sock_cred creds; |
| 5461b305 DG |
51 | }; |
| 52 | ||
| 099e26bd DG |
53 | struct ust_command { |
| 54 | int sock; | |
| 55 | struct ust_register_msg reg_msg; | |
| 56 | struct cds_wfq_node node; | |
| 57 | }; | |
| 58 | ||
| 59 | /* | |
| 60 | * Queue used to enqueue UST registration request (ust_commant) and protected | |
| 61 | * by a futex with a scheme N wakers / 1 waiters. See futex.c/.h | |
| 62 | */ | |
| 63 | struct ust_cmd_queue { | |
| 64 | int32_t futex; | |
| 65 | struct cds_wfq_queue queue; | |
| 66 | }; | |
| 67 | ||
| d0b96690 DG |
68 | /* |
| 69 | * This pipe is used to inform the thread managing application notify | |
| 70 | * communication that a command is queued and ready to be processed. | |
| 71 | */ | |
| 72 | extern int apps_cmd_notify_pipe[2]; | |
| 73 | ||
| 74 | int sessiond_set_thread_pollset(struct lttng_poll_event *events, size_t size); | |
| 75 | int sessiond_check_thread_quit_pipe(int fd, uint32_t events); | |
| 76 | ||
| fac6795d | 77 | #endif /* _LTT_SESSIOND_H */ |