session_service_psi.h

Go to the documentation of this file.

// Copyright (c) 2026, Oracle and/or its affiliates.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
//
// This program is designed to work with certain software (including
// but not limited to OpenSSL) that is licensed under separate terms,
// as designated in a particular file or component or in included license
// documentation.  The authors of MySQL hereby grant you an additional
// permission to link the program and your derivative works with the
// separately licensed software that they have either included with
// the program or referenced in the documentation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License, version 2.0, for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA.
 
#ifndef MYSQL_CSA_SESSION_SERVICE_PSI_H
#define MYSQL_CSA_SESSION_SERVICE_PSI_H
 
#include "mysql/allocators/memory_resource.h"
#include "mysql/concurrency/condition_variable.h"
#include "mysql/concurrency/mutex.h"
#include "mysql/concurrency/thread.h"
 
namespace mysql::csa {
 
/// @brief Dependency_tracker instrumentation parameters, packed into this
/// structure to simplify construction of a Dependency_tracker class instance
/// and prevent mistakes when passing a lot of integer parameters into the class
/// constructor
struct Session_service_psi {
  /// mutex: One key for mutexes used to synchronize access to each session (1
  /// mutex per 1 session)
  concurrency::Mutex_key key_mt_entry{0};
  /// stage: acquire session
  concurrency::Stage_key key_st_acquire{0};
  /// stage: release session
  concurrency::Stage_key key_st_release{0};
  /// memory: Memory resource object
  allocators::Memory_resource memory_resource{};
};
 
}  // namespace mysql::csa
 
#endif  // MYSQL_CSA_SESSION_SERVICE_PSI_H