Implement consumer ring buffer position sampling
[lttng-tools.git] / src / bin / lttng-sessiond / channel.h
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1/*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 *
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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.
54d01ffb 7 *
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8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
54d01ffb 12 *
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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.
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16 */
17
18#ifndef _LTT_CHANNEL_H
19#define _LTT_CHANNEL_H
20
21#include <lttng/lttng.h>
22
23#include "trace-kernel.h"
44d3bd01 24#include "trace-ust.h"
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25
26int channel_kernel_disable(struct ltt_kernel_session *ksession,
27 char *channel_name);
28int channel_kernel_enable(struct ltt_kernel_session *ksession,
29 struct ltt_kernel_channel *kchan);
30int channel_kernel_create(struct ltt_kernel_session *ksession,
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31 struct lttng_channel *chan, int kernel_pipe);
32
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33struct lttng_channel *channel_new_default_attr(int domain,
34 enum lttng_buffer_type type);
e9404c27 35void channel_attr_destroy(struct lttng_channel *channel);
f6cd6b0f 36
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37int channel_ust_create(struct ltt_ust_session *usess,
38 struct lttng_channel *attr, enum lttng_buffer_type type);
39int channel_ust_enable(struct ltt_ust_session *usess,
7885e399 40 struct ltt_ust_channel *uchan);
7972aab2 41int channel_ust_disable(struct ltt_ust_session *usess,
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42 struct ltt_ust_channel *uchan);
43
54d01ffb 44#endif /* _LTT_CHANNEL_H */
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