| 1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; only version 2 |
| 7 | * of the License. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifndef _LTT_KERNEL_CTL_H |
| 20 | #define _LTT_KERNEL_CTL_H |
| 21 | |
| 22 | #include "session.h" |
| 23 | #include "trace.h" |
| 24 | |
| 25 | /* |
| 26 | * Default size for the event list when kernel_list_events is called. This size |
| 27 | * value is based on the initial LTTng 2.0 version set of tracepoints. This is |
| 28 | * NOT an upper bound because if the real event list size is bigger, dynamic |
| 29 | * reallocation is performed. |
| 30 | */ |
| 31 | #define KERNEL_EVENT_LIST_SIZE 2000 |
| 32 | |
| 33 | int kernel_add_channel_context(struct ltt_kernel_channel *chan, |
| 34 | struct lttng_kernel_context *ctx); |
| 35 | int kernel_add_event_context(struct ltt_kernel_event *event, |
| 36 | struct lttng_kernel_context *ctx); |
| 37 | int kernel_create_session(struct ltt_session *session, int tracer_fd); |
| 38 | int kernel_create_channel(struct ltt_kernel_session *session, |
| 39 | struct lttng_channel *chan, char *path); |
| 40 | int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel); |
| 41 | int kernel_disable_channel(struct ltt_kernel_channel *chan); |
| 42 | int kernel_disable_event(struct ltt_kernel_event *event); |
| 43 | int kernel_enable_event(struct ltt_kernel_event *event); |
| 44 | int kernel_enable_channel(struct ltt_kernel_channel *chan); |
| 45 | int kernel_open_metadata(struct ltt_kernel_session *session, char *path); |
| 46 | int kernel_open_metadata_stream(struct ltt_kernel_session *session); |
| 47 | int kernel_open_channel_stream(struct ltt_kernel_channel *channel); |
| 48 | int kernel_flush_buffer(struct ltt_kernel_channel *channel); |
| 49 | int kernel_metadata_flush_buffer(int fd); |
| 50 | int kernel_start_session(struct ltt_kernel_session *session); |
| 51 | int kernel_stop_session(struct ltt_kernel_session *session); |
| 52 | ssize_t kernel_list_events(int tracer_fd, char **event_list); |
| 53 | void kernel_wait_quiescent(int fd); |
| 54 | |
| 55 | #endif /* _LTT_KERNEL_CTL_H */ |