src/bin/lttng-sessiond/ust-registry-session-uid.cpp

   1 /*
   2  * Copyright (C) 2022 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-only
   5  *
   6  */
   7
   8 #include "ust-registry.hpp"
   9
  10 namespace lst = lttng::sessiond::trace;
  11
  12 ust_registry_session_per_uid::ust_registry_session_per_uid(
  13                 const struct lst::abi& in_abi,
  14                 uint32_t major,
  15                 uint32_t minor,
  16                 const char *root_shm_path,
  17                 const char *shm_path,
  18                 uid_t euid,
  19                 gid_t egid,
  20                 uint64_t tracing_id,
  21                 uid_t tracing_uid) :
  22         ust_registry_session{in_abi, major, minor, root_shm_path, shm_path, euid, egid, tracing_id},
  23         _tracing_uid{tracing_uid}
  24 {
  25         lttng::pthread::lock_guard registry_lock(_lock);
  26         _generate_metadata();
  27 }
  28
  29 lttng_buffer_type ust_registry_session_per_uid::get_buffering_scheme() const noexcept
  30 {
  31         return LTTNG_BUFFER_PER_UID;
  32 }
  33
  34 void ust_registry_session_per_uid::_visit_environment(lst::trace_class_visitor& visitor) const
  35 {
  36         ust_registry_session::_visit_environment(visitor);
  37         visitor.visit(lst::environment_field<int64_t>("tracer_buffering_id", _tracing_uid));
  38 }