Chris@16:  //////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga 2011-2012. Distributed under the Boost
Chris@16: // Software License, Version 1.0. (See accompanying file
Chris@16: // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/interprocess for documentation.
Chris@16: //
Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: #ifndef BOOST_INTERPROCESS_WINDOWS_NAMED_CONDITION_ANY_HPP
Chris@16: #define BOOST_INTERPROCESS_WINDOWS_NAMED_CONDITION_ANY_HPP
Chris@16: 
Chris@101: #ifndef BOOST_CONFIG_HPP
Chris@101: #  include <boost/config.hpp>
Chris@101: #endif
Chris@101: #
Chris@101: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@16: #  pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/interprocess/detail/config_begin.hpp>
Chris@16: #include <boost/interprocess/detail/workaround.hpp>
Chris@16: #include <boost/interprocess/creation_tags.hpp>
Chris@16: #include <boost/interprocess/permissions.hpp>
Chris@16: #include <boost/interprocess/detail/interprocess_tester.hpp>
Chris@16: #include <boost/interprocess/detail/posix_time_types_wrk.hpp>
Chris@16: #include <boost/interprocess/sync/windows/named_sync.hpp>
Chris@16: #include <boost/interprocess/sync/windows/winapi_semaphore_wrapper.hpp>
Chris@16: #include <boost/interprocess/sync/detail/condition_algorithm_8a.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace interprocess {
Chris@16: namespace ipcdetail {
Chris@16: 
Chris@16: class windows_named_condition_any
Chris@16: {
Chris@101:    #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
Chris@16: 
Chris@16:    //Non-copyable
Chris@16:    windows_named_condition_any();
Chris@16:    windows_named_condition_any(const windows_named_condition_any &);
Chris@16:    windows_named_condition_any &operator=(const windows_named_condition_any &);
Chris@101:    #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
Chris@16: 
Chris@16:    public:
Chris@16:    windows_named_condition_any
Chris@16:       (create_only_t, const char *name, const permissions &perm)
Chris@16:       : m_condition_data()
Chris@16:    {
Chris@16:       named_cond_callbacks callbacks(m_condition_data.get_members());
Chris@16:       m_named_sync.open_or_create(DoCreate, name, perm, callbacks);
Chris@16:    }
Chris@16: 
Chris@16:    windows_named_condition_any
Chris@16:       (open_or_create_t, const char *name, const permissions &perm)
Chris@16:       : m_condition_data()
Chris@16:    {
Chris@16:       named_cond_callbacks callbacks(m_condition_data.get_members());
Chris@16:       m_named_sync.open_or_create(DoOpenOrCreate, name, perm, callbacks);
Chris@16:    }
Chris@16: 
Chris@16:    windows_named_condition_any(open_only_t, const char *name)
Chris@16:       : m_condition_data()
Chris@16:    {
Chris@16:       named_cond_callbacks callbacks(m_condition_data.get_members());
Chris@16:       m_named_sync.open_or_create(DoOpen, name, permissions(), callbacks);
Chris@16:    }
Chris@16: 
Chris@16:    ~windows_named_condition_any()
Chris@16:    {
Chris@16:       named_cond_callbacks callbacks(m_condition_data.get_members());
Chris@16:       m_named_sync.close(callbacks);
Chris@16:    }
Chris@16: 
Chris@16:    void notify_one()
Chris@16:    {  m_condition_data.notify_one();   }
Chris@16: 
Chris@16:    void notify_all()
Chris@16:    {  m_condition_data.notify_all();   }
Chris@16: 
Chris@16:    template <typename L>
Chris@16:    bool timed_wait(L& lock, const boost::posix_time::ptime &abs_time)
Chris@16:    {  return m_condition_data.timed_wait(lock, abs_time);   }
Chris@16: 
Chris@16:    template <typename L, typename Pr>
Chris@16:    bool timed_wait(L& lock, const boost::posix_time::ptime &abs_time, Pr pred)
Chris@16:    {  return m_condition_data.timed_wait(lock, abs_time, pred);   }
Chris@16: 
Chris@16:    template <typename L>
Chris@16:    void wait(L& lock)
Chris@16:    {  m_condition_data.wait(lock);   }
Chris@16: 
Chris@16:    template <typename L, typename Pr>
Chris@16:    void wait(L& lock, Pr pred)
Chris@16:    {  m_condition_data.wait(lock, pred);   }
Chris@16: 
Chris@16:    static bool remove(const char *name)
Chris@16:    {  return windows_named_sync::remove(name);  }
Chris@16: 
Chris@101:    #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
Chris@16:    private:
Chris@16: 
Chris@101:    void dont_close_on_destruction()
Chris@16:    {}
Chris@16: 
Chris@16:    friend class interprocess_tester;
Chris@16: 
Chris@16:    struct condition_data
Chris@16:    {
Chris@16:       typedef boost::int32_t           integer_type;
Chris@16:       typedef winapi_semaphore_wrapper semaphore_type;
Chris@16:       typedef winapi_mutex_wrapper     mutex_type;
Chris@16: 
Chris@16:       integer_type    &get_nwaiters_blocked()
Chris@16:       {  return m_nwaiters_blocked;  }
Chris@16: 
Chris@16:       integer_type    &get_nwaiters_gone()
Chris@16:       {  return m_nwaiters_gone;  }
Chris@16: 
Chris@16:       integer_type    &get_nwaiters_to_unblock()
Chris@16:       {  return m_nwaiters_to_unblock;  }
Chris@16: 
Chris@16:       semaphore_type  &get_sem_block_queue()
Chris@16:       {  return m_sem_block_queue;  }
Chris@16: 
Chris@16:       semaphore_type  &get_sem_block_lock()
Chris@16:       {  return m_sem_block_lock;  }
Chris@16: 
Chris@16:       mutex_type      &get_mtx_unblock_lock()
Chris@16:       {  return m_mtx_unblock_lock;  }
Chris@16: 
Chris@16:       integer_type               m_nwaiters_blocked;
Chris@16:       integer_type               m_nwaiters_gone;
Chris@16:       integer_type               m_nwaiters_to_unblock;
Chris@16:       winapi_semaphore_wrapper   m_sem_block_queue;
Chris@16:       winapi_semaphore_wrapper   m_sem_block_lock;
Chris@16:       winapi_mutex_wrapper       m_mtx_unblock_lock;
Chris@16:    };
Chris@16: 
Chris@16:    class named_cond_callbacks : public windows_named_sync_interface
Chris@16:    {
Chris@16:       typedef __int64 sem_count_t;
Chris@16:       mutable sem_count_t sem_counts [2];
Chris@16: 
Chris@16:       public:
Chris@16:       named_cond_callbacks(condition_data &cond_data)
Chris@16:          : m_condition_data(cond_data)
Chris@16:       {}
Chris@16: 
Chris@16:       virtual std::size_t get_data_size() const
Chris@16:       {  return sizeof(sem_counts);   }
Chris@16: 
Chris@16:       virtual const void *buffer_with_final_data_to_file()
Chris@16:       {
Chris@16:          sem_counts[0] = m_condition_data.m_sem_block_queue.value();
Chris@16:          sem_counts[1] = m_condition_data.m_sem_block_lock.value();
Chris@16:          return &sem_counts;
Chris@16:       }
Chris@16: 
Chris@16:       virtual const void *buffer_with_init_data_to_file()
Chris@16:       {
Chris@16:          sem_counts[0] = 0;
Chris@16:          sem_counts[1] = 1;
Chris@16:          return &sem_counts;
Chris@16:       }
Chris@16: 
Chris@16:       virtual void *buffer_to_store_init_data_from_file()
Chris@16:       {  return &sem_counts; }
Chris@16: 
Chris@16:       virtual bool open(create_enum_t, const char *id_name)
Chris@16:       {
Chris@16:          m_condition_data.m_nwaiters_blocked = 0;
Chris@16:          m_condition_data.m_nwaiters_gone = 0;
Chris@16:          m_condition_data.m_nwaiters_to_unblock = 0;
Chris@16: 
Chris@16:          //Now open semaphores and mutex.
Chris@16:          //Use local variables + swap to guarantee consistent
Chris@16:          //initialization and cleanup in case any opening fails
Chris@16:          permissions perm;
Chris@16:          perm.set_unrestricted();
Chris@16:          std::string aux_str  = "Global\\bipc.cond.";
Chris@16:          aux_str += id_name;
Chris@16:          std::size_t pos = aux_str.size();
Chris@16: 
Chris@16:          //sem_block_queue
Chris@16:          aux_str += "_bq";
Chris@16:          winapi_semaphore_wrapper sem_block_queue;
Chris@16:          bool created;
Chris@16:          if(!sem_block_queue.open_or_create
Chris@16:             (aux_str.c_str(), sem_counts[0], winapi_semaphore_wrapper::MaxCount, perm, created))
Chris@16:             return false;
Chris@16:          aux_str.erase(pos);
Chris@16: 
Chris@16:          //sem_block_lock
Chris@16:          aux_str += "_bl";
Chris@16:          winapi_semaphore_wrapper sem_block_lock;
Chris@16:          if(!sem_block_lock.open_or_create
Chris@16:             (aux_str.c_str(), sem_counts[1], winapi_semaphore_wrapper::MaxCount, perm, created))
Chris@16:             return false;
Chris@16:          aux_str.erase(pos);
Chris@16: 
Chris@16:          //mtx_unblock_lock
Chris@16:          aux_str += "_ul";
Chris@16:          winapi_mutex_wrapper mtx_unblock_lock;
Chris@16:          if(!mtx_unblock_lock.open_or_create(aux_str.c_str(), perm))
Chris@16:             return false;
Chris@16: 
Chris@16:          //All ok, commit data
Chris@16:          m_condition_data.m_sem_block_queue.swap(sem_block_queue);
Chris@16:          m_condition_data.m_sem_block_lock.swap(sem_block_lock);
Chris@16:          m_condition_data.m_mtx_unblock_lock.swap(mtx_unblock_lock);
Chris@16:          return true;
Chris@16:       }
Chris@16: 
Chris@16:       virtual void close()
Chris@16:       {
Chris@16:          m_condition_data.m_sem_block_queue.close();
Chris@16:          m_condition_data.m_sem_block_lock.close();
Chris@16:          m_condition_data.m_mtx_unblock_lock.close();
Chris@16:          m_condition_data.m_nwaiters_blocked = 0;
Chris@16:          m_condition_data.m_nwaiters_gone = 0;
Chris@16:          m_condition_data.m_nwaiters_to_unblock = 0;
Chris@16:       }
Chris@16: 
Chris@16:       virtual ~named_cond_callbacks()
Chris@16:       {}
Chris@16: 
Chris@16:       private:
Chris@16:       condition_data &m_condition_data;
Chris@16:    };
Chris@16: 
Chris@16:    windows_named_sync   m_named_sync;
Chris@101:    ipcdetail::condition_8a_wrapper<condition_data> m_condition_data;
Chris@101:    #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
Chris@16: };
Chris@16: 
Chris@16: }  //namespace ipcdetail {
Chris@16: }  //namespace interprocess {
Chris@16: }  //namespace boost {
Chris@16: 
Chris@16: #include <boost/interprocess/detail/config_end.hpp>
Chris@16: 
Chris@16: #endif   //BOOST_INTERPROCESS_WINDOWS_NAMED_CONDITION_ANY_HPP