src/common/kernel-consumer/kernel-consumer.h

   1 /*
   2  * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
   3  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-only
   7  *
   8  */
   9
  10 #ifndef _LTTNG_KCONSUMER_H
  11 #define _LTTNG_KCONSUMER_H
  12
  13 #include <stdbool.h>
  14 #include <common/consumer/consumer.h>
  15
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif
  19
  20 int lttng_kconsumer_take_snapshot(struct lttng_consumer_stream *stream);
  21 int lttng_kconsumer_sample_snapshot_positions(
  22                 struct lttng_consumer_stream *stream);
  23 int lttng_kconsumer_get_produced_snapshot(struct lttng_consumer_stream *stream,
  24                 unsigned long *pos);
  25 int lttng_kconsumer_get_consumed_snapshot(struct lttng_consumer_stream *stream,
  26                 unsigned long *pos);
  27 int lttng_kconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
  28                 int sock, struct pollfd *consumer_sockpoll);
  29 int lttng_kconsumer_on_recv_stream(struct lttng_consumer_stream *stream);
  30 int lttng_kconsumer_data_pending(struct lttng_consumer_stream *stream);
  31 enum sync_metadata_status lttng_kconsumer_sync_metadata(
  32                 struct lttng_consumer_stream *metadata);
  33
  34 #ifdef __cplusplus
  35 }
  36 #endif
  37
  38 #endif /* _LTTNG_KCONSUMER_H */