2 * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
3 * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
4 * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
6 * SPDX-License-Identifier: GPL-2.0-only
10 #ifndef CONSUMER_TIMER_H
11 #define CONSUMER_TIMER_H
21 #define LTTNG_CONSUMER_SIG_SWITCH SIGRTMIN + 10
22 #define LTTNG_CONSUMER_SIG_TEARDOWN SIGRTMIN + 11
23 #define LTTNG_CONSUMER_SIG_LIVE SIGRTMIN + 12
24 #define LTTNG_CONSUMER_SIG_MONITOR SIGRTMIN + 13
25 #define LTTNG_CONSUMER_SIG_EXIT SIGRTMIN + 14
27 #define CLOCKID CLOCK_MONOTONIC
30 * Handle timer teardown race wrt memory free of private data by consumer
31 * signals are handled by a single thread, which permits a synchronization
32 * point between handling of each signal. Internal lock ensures mutual
35 struct timer_signal_data
{
36 pthread_t tid
; /* thread id managing signals */
42 void consumer_timer_switch_start(struct lttng_consumer_channel
*channel
,
43 unsigned int switch_timer_interval_us
);
44 void consumer_timer_switch_stop(struct lttng_consumer_channel
*channel
);
45 void consumer_timer_live_start(struct lttng_consumer_channel
*channel
,
46 unsigned int live_timer_interval_us
);
47 void consumer_timer_live_stop(struct lttng_consumer_channel
*channel
);
48 int consumer_timer_monitor_start(struct lttng_consumer_channel
*channel
,
49 unsigned int monitor_timer_interval_us
);
50 int consumer_timer_monitor_stop(struct lttng_consumer_channel
*channel
);
51 void *consumer_timer_thread(void *data
);
52 int consumer_signal_init(void);
54 int consumer_flush_kernel_index(struct lttng_consumer_stream
*stream
);
55 int consumer_flush_ust_index(struct lttng_consumer_stream
*stream
);
57 int consumer_timer_thread_get_channel_monitor_pipe(void);
58 int consumer_timer_thread_set_channel_monitor_pipe(int fd
);
64 #endif /* CONSUMER_TIMER_H */