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author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2019-10-07 04:52:50 +0200 |
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committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2019-10-07 04:52:50 +0200 |
commit | 0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d (patch) | |
tree | a71d934d8151dd43e7c16555fef17fd749c5da70 /lib/asio/detail/conditionally_enabled_mutex.hpp | |
parent | 558d74bffd9f069955af52c0b308a1d6169bcff0 (diff) | |
parent | 0330221d51421caa110b8c5dcb567cc3d0620eb9 (diff) | |
download | dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.tar.gz dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.tar.bz2 dabmod-0aa6201a490bfabc0ae021ceb9f1fb0f46727c5d.zip |
Merge lime output into next branch
Diffstat (limited to 'lib/asio/detail/conditionally_enabled_mutex.hpp')
-rw-r--r-- | lib/asio/detail/conditionally_enabled_mutex.hpp | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/lib/asio/detail/conditionally_enabled_mutex.hpp b/lib/asio/detail/conditionally_enabled_mutex.hpp deleted file mode 100644 index 2872db9..0000000 --- a/lib/asio/detail/conditionally_enabled_mutex.hpp +++ /dev/null @@ -1,149 +0,0 @@ -// -// detail/conditionally_enabled_mutex.hpp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com) -// -// Distributed under the Boost Software License, Version 1.0. (See accompanying -// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -// - -#ifndef ASIO_DETAIL_CONDITIONALLY_ENABLED_MUTEX_HPP -#define ASIO_DETAIL_CONDITIONALLY_ENABLED_MUTEX_HPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include "asio/detail/config.hpp" -#include "asio/detail/mutex.hpp" -#include "asio/detail/noncopyable.hpp" -#include "asio/detail/scoped_lock.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -// Mutex adapter used to conditionally enable or disable locking. -class conditionally_enabled_mutex - : private noncopyable -{ -public: - // Helper class to lock and unlock a mutex automatically. - class scoped_lock - : private noncopyable - { - public: - // Tag type used to distinguish constructors. - enum adopt_lock_t { adopt_lock }; - - // Constructor adopts a lock that is already held. - scoped_lock(conditionally_enabled_mutex& m, adopt_lock_t) - : mutex_(m), - locked_(m.enabled_) - { - } - - // Constructor acquires the lock. - explicit scoped_lock(conditionally_enabled_mutex& m) - : mutex_(m) - { - if (m.enabled_) - { - mutex_.mutex_.lock(); - locked_ = true; - } - else - locked_ = false; - } - - // Destructor releases the lock. - ~scoped_lock() - { - if (locked_) - mutex_.mutex_.unlock(); - } - - // Explicitly acquire the lock. - void lock() - { - if (mutex_.enabled_ && !locked_) - { - mutex_.mutex_.lock(); - locked_ = true; - } - } - - // Explicitly release the lock. - void unlock() - { - if (locked_) - { - mutex_.unlock(); - locked_ = false; - } - } - - // Test whether the lock is held. - bool locked() const - { - return locked_; - } - - // Get the underlying mutex. - asio::detail::mutex& mutex() - { - return mutex_.mutex_; - } - - private: - friend class conditionally_enabled_event; - conditionally_enabled_mutex& mutex_; - bool locked_; - }; - - // Constructor. - explicit conditionally_enabled_mutex(bool enabled) - : enabled_(enabled) - { - } - - // Destructor. - ~conditionally_enabled_mutex() - { - } - - // Determine whether locking is enabled. - bool enabled() const - { - return enabled_; - } - - // Lock the mutex. - void lock() - { - if (enabled_) - mutex_.lock(); - } - - // Unlock the mutex. - void unlock() - { - if (enabled_) - mutex_.unlock(); - } - -private: - friend class scoped_lock; - friend class conditionally_enabled_event; - asio::detail::mutex mutex_; - const bool enabled_; -}; - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#endif // ASIO_DETAIL_CONDITIONALLY_ENABLED_MUTEX_HPP |