X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2a6382661d9ccbe7198decb53b042e715998a4c4..6ee0c147e010bf1d2da12813b60593e805e49f3b:/include/simgrid/s4u/Mutex.hpp diff --git a/include/simgrid/s4u/Mutex.hpp b/include/simgrid/s4u/Mutex.hpp index e28f58a812..7791cd7e23 100644 --- a/include/simgrid/s4u/Mutex.hpp +++ b/include/simgrid/s4u/Mutex.hpp @@ -1,4 +1,4 @@ -/* Copyright (c) 2006-2020. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2006-2023. The SimGrid Team. All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ @@ -9,51 +9,51 @@ #include #include -namespace simgrid { -namespace s4u { +namespace simgrid::s4u { -/** @brief A classical mutex, but blocking in the simulation world - * @ingroup s4u_api +/** @brief A classical mutex, but blocking in the simulation world. * + * @beginrst * It is strictly impossible to use a real mutex, such as - * std::mutex - * or pthread_mutex_t, + * `std::mutex `_ + * or `pthread_mutex_t `_, * because it would block the whole simulation. - * Instead, you should use the present class, that is a drop-in replacement of - * std::mutex. + * Instead, you should use the present class, that is a drop-in replacement of these mechanisms. * - * @beginrst - * As for any S4U object, Mutexes are using the :ref:`RAII idiom ` for memory management. + * An example is available in Section :ref:`s4u_ex_IPC`. + * + * As for any S4U object, you can use the :ref:`RAII idiom ` for memory management of Mutexes. * Use :cpp:func:`create() ` to get a :cpp:type:`simgrid::s4u::MutexPtr` to a newly * created mutex, and only manipulate :cpp:type:`simgrid::s4u::MutexPtr`. * @endrst - * */ class XBT_PUBLIC Mutex { +#ifndef DOXYGEN friend ConditionVariable; friend kernel::activity::MutexImpl; + friend XBT_PUBLIC void kernel::activity::intrusive_ptr_release(kernel::activity::MutexImpl* mutex); +#endif kernel::activity::MutexImpl* const pimpl_; /* refcounting */ friend XBT_PUBLIC void intrusive_ptr_add_ref(const Mutex* mutex); friend XBT_PUBLIC void intrusive_ptr_release(const Mutex* mutex); -public: -#ifndef DOXYGEN explicit Mutex(kernel::activity::MutexImpl* mutex) : pimpl_(mutex) {} - ~Mutex(); + ~Mutex() = default; +#ifndef DOXYGEN Mutex(Mutex const&) = delete; // No copy constructor; Use MutexPtr instead Mutex& operator=(Mutex const&) = delete; // No direct assignment either. Use MutexPtr instead #endif - /** Constructs a new mutex */ +public: + /** \static Constructs a new mutex */ static MutexPtr create(); void lock(); void unlock(); bool try_lock(); }; -} // namespace s4u -} // namespace simgrid +} // namespace simgrid::s4u #endif /* SIMGRID_S4U_MUTEX_HPP */