include/lttng/channel-internal.h

   1 /*
   2  * Copyright (C) 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * SPDX-License-Identifier: LGPL-2.1-only
   5  *
   6  */
   7
   8 #ifndef LTTNG_CHANNEL_INTERNAL_H
   9 #define LTTNG_CHANNEL_INTERNAL_H
  10
  11 #include <common/macros.h>
  12 #include <lttng/channel.h>
  13 #include <lttng/lttng-error.h>
  14
  15 struct lttng_dynamic_buffer;
  16 struct lttng_buffer_view;
  17
  18 struct lttng_channel_extended {
  19         uint64_t discarded_events;
  20         uint64_t lost_packets;
  21         uint64_t monitor_timer_interval;
  22         int64_t blocking_timeout;
  23 } LTTNG_PACKED;
  24
  25 struct lttng_channel_comm {
  26         /* Includes terminator `\0`. */
  27         uint32_t name_len;
  28         uint8_t enabled;
  29
  30         /* attr */
  31         int8_t overwrite;
  32         uint64_t subbuf_size;
  33         uint64_t num_subbuf;
  34         uint32_t switch_timer_interval;
  35         uint32_t read_timer_interval;
  36         uint8_t output;
  37         uint64_t tracefile_size;
  38         uint64_t tracefile_count;
  39         uint32_t live_timer_interval;
  40
  41         /* Extended struct */
  42         uint64_t discarded_events;
  43         uint64_t lost_packets;
  44         uint64_t monitor_timer_interval;
  45         int64_t blocking_timeout;
  46 } LTTNG_PACKED;
  47
  48 struct lttng_channel *lttng_channel_create_internal(void);
  49
  50 struct lttng_channel *lttng_channel_copy(const struct lttng_channel *src);
  51
  52 ssize_t lttng_channel_create_from_buffer(const struct lttng_buffer_view *view,
  53                 struct lttng_channel **event);
  54
  55 int lttng_channel_serialize(struct lttng_channel *channel,
  56                 struct lttng_dynamic_buffer *buf);
  57
  58 void lttng_channel_set_default_extended_attr(struct lttng_domain *domain,
  59                 struct lttng_channel_extended *extended_attr);
  60
  61 enum lttng_error_code lttng_channels_create_and_flatten_from_buffer(
  62                 const struct lttng_buffer_view *view,
  63                 unsigned int count,
  64                 struct lttng_channel **channels);
  65
  66 #endif /* LTTNG_CHANNEL_INTERNAL_H */