2 * Copyright (C) - 2011 - David Goulet <david.goulet@polymtl.ca>
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
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.
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.
19 #ifndef _LTTNG_SHARE_H
20 #define _LTTNG_SHARE_H
22 #include <asm/types.h>
30 /* Default channel attributes */
31 #define DEFAULT_CHANNEL_NAME "channel0"
32 #define DEFAULT_CHANNEL_OVERWRITE 0 /* usec */
33 /* DEFAULT_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
34 #define DEFAULT_CHANNEL_SUBBUF_SIZE 4096 /* bytes */
35 /* DEFAULT_CHANNEL_SUBBUF_NUM must always be a power of 2 */
36 #define DEFAULT_CHANNEL_SUBBUF_NUM 8
37 #define DEFAULT_CHANNEL_SWITCH_TIMER 0 /* usec */
38 #define DEFAULT_CHANNEL_READ_TIMER 200 /* usec */
39 #define DEFAULT_CHANNEL_OUTPUT LTTNG_EVENT_MMAP
41 #define DEFAULT_METADATA_SUBBUF_SIZE 4096
42 #define DEFAULT_METADATA_SUBBUF_NUM 8
43 //TODO: keeping value to 8 currently because consumer is only spawned after
44 //start, so it cannot empty the metadata buffer at trace start.
45 //#define DEFAULT_METADATA_SUBBUF_NUM 2
47 /* Kernel has different defaults */
49 /* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
50 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE 262144 /* bytes */
51 /* DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2 */
52 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM 4
53 /* See lttng-kernel.h enum lttng_kernel_output for channel output */
54 #define DEFAULT_KERNEL_CHANNEL_OUTPUT LTTNG_EVENT_SPLICE
57 * lttng user-space instrumentation type
59 enum lttng_ust_instrumentation
{
64 #endif /* _LTTNG_SHARE_H */