2 * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
3 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
4 * 2012 - David Goulet <dgoulet@efficios.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License, version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #ifndef CONSUMER_TIMER_H
21 #define CONSUMER_TIMER_H
27 #define LTTNG_CONSUMER_SIG_SWITCH SIGRTMIN + 10
28 #define LTTNG_CONSUMER_SIG_TEARDOWN SIGRTMIN + 11
29 #define LTTNG_CONSUMER_SIG_LIVE SIGRTMIN + 12
31 #define CLOCKID CLOCK_MONOTONIC
34 * Handle timer teardown race wrt memory free of private data by consumer
35 * signals are handled by a single thread, which permits a synchronization
36 * point between handling of each signal. Internal lock ensures mutual
39 struct timer_signal_data
{
40 pthread_t tid
; /* thread id managing signals */
46 void consumer_timer_switch_start(struct lttng_consumer_channel
*channel
,
47 unsigned int switch_timer_interval
);
48 void consumer_timer_switch_stop(struct lttng_consumer_channel
*channel
);
49 void consumer_timer_live_start(struct lttng_consumer_channel
*channel
,
50 int live_timer_interval
);
51 void consumer_timer_live_stop(struct lttng_consumer_channel
*channel
);
52 void *consumer_timer_thread(void *data
);
53 void consumer_signal_init(void);
55 #endif /* CONSUMER_TIMER_H */
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