include/lttng/channel-internal.hpp

   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/error.hpp>
  12 #include <common/macros.hpp>
  13
  14 struct lttng_channel_extended {
  15         uint64_t discarded_events;
  16         uint64_t lost_packets;
  17         uint64_t monitor_timer_interval;
  18         int64_t blocking_timeout;
  19 } LTTNG_PACKED;
  20
  21 struct lttng_channel_comm {
  22         /* Includes terminator `\0`. */
  23         uint32_t name_len;
  24         uint8_t enabled;
  25
  26         /* attr */
  27         int8_t overwrite;
  28         uint64_t subbuf_size;
  29         uint64_t num_subbuf;
  30         uint32_t switch_timer_interval;
  31         uint32_t read_timer_interval;
  32         uint8_t output;
  33         uint64_t tracefile_size;
  34         uint64_t tracefile_count;
  35         uint32_t live_timer_interval;
  36
  37         /* Extended struct */
  38         uint64_t discarded_events;
  39         uint64_t lost_packets;
  40         uint64_t monitor_timer_interval;
  41         int64_t blocking_timeout;
  42 } LTTNG_PACKED;
  43
  44 struct lttng_channel *lttng_channel_create_internal();
  45
  46 struct lttng_channel *lttng_channel_copy(const struct lttng_channel *src);
  47
  48 ssize_t lttng_channel_create_from_buffer(const struct lttng_buffer_view *view,
  49                                          struct lttng_channel **event);
  50
  51 int lttng_channel_serialize(struct lttng_channel *channel, struct lttng_dynamic_buffer *buf);
  52
  53 void lttng_channel_set_default_extended_attr(struct lttng_domain *domain,
  54                                              struct lttng_channel_extended *extended_attr);
  55
  56 enum lttng_error_code lttng_channels_create_and_flatten_from_buffer(
  57         const struct lttng_buffer_view *view, unsigned int count, struct lttng_channel **channels);
  58
  59 #endif /* LTTNG_CHANNEL_INTERNAL_H */