stats.cpp

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/* Flow-IPC: SHM-jemalloc
 * Copyright (c) 2023 Akamai Technologies, Inc.; and other contributors.
 * Each commit is copyright by its respective author or author's employer.
 *
 * Licensed under the MIT License:
 *
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 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
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 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
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/// @file
#include "ipc/shm/arena_lend/detail/stats.hpp"
#include "ipc/shm/arena_lend/detail/arena_lend_fwd.hpp"
 
namespace ipc::shm::arena_lend::detail::stat
{
 
// Free function implementations.
 
flow::util::Mutex_recursive& thread_end_gap_mutex()
{
  using flow::util::Mutex_recursive;
 
  /* We promised it'll outlive all C++ code; intentionally leak it making it immortal.  As usual in C++17
   * the local-static maneuver is thread-safe and efficient while creating the static-guy on-demand. */
  static const auto s_mutex = new Mutex_recursive;
  return *s_mutex;
}
 
} // namespace ipc::shm::arena_lend::detail::stat