comparison DEPENDENCIES/generic/include/boost/interprocess/sync/posix/mutex.hpp @ 101:c530137014c0

Update Boost headers (1.58.0)

 //////////////////////////////////////////////////////////////////////////////
 
 #ifndef BOOST_INTERPROCESS_DETAIL_POSIX_MUTEX_HPP
 #define BOOST_INTERPROCESS_DETAIL_POSIX_MUTEX_HPP
 
-#if (defined _MSC_VER) && (_MSC_VER >= 1200)
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+#
+#if defined(BOOST_HAS_PRAGMA_ONCE)
 #  pragma once
 #endif
 
 #include <boost/interprocess/detail/config_begin.hpp>
 #include <boost/interprocess/detail/workaround.hpp>

 #include <boost/interprocess/exceptions.hpp>
 #include <boost/interprocess/sync/posix/pthread_helpers.hpp>
 
 #ifndef BOOST_INTERPROCESS_POSIX_TIMEOUTS
 #  include <boost/interprocess/detail/os_thread_functions.hpp>
-#  include <boost/interprocess/sync/spin/wait.hpp>
+#  include <boost/interprocess/sync/detail/common_algorithms.hpp>
 #endif
 #include <boost/assert.hpp>
 
 namespace boost {
 namespace interprocess {

    return res == 0;
 }
 
 inline bool posix_mutex::timed_lock(const boost::posix_time::ptime &abs_time)
 {
+   #ifdef BOOST_INTERPROCESS_POSIX_TIMEOUTS
+   //Posix does not support infinity absolute time so handle it here
    if(abs_time == boost::posix_time::pos_infin){
       this->lock();
       return true;
    }
-   #ifdef BOOST_INTERPROCESS_POSIX_TIMEOUTS
-
    timespec ts = ptime_to_timespec(abs_time);
    int res = pthread_mutex_timedlock(&m_mut, &ts);
    if (res != 0 && res != ETIMEDOUT)
       throw lock_exception();
    return res == 0;
 
    #else //BOOST_INTERPROCESS_POSIX_TIMEOUTS
 
-   //Obtain current count and target time
-   boost::posix_time::ptime now = microsec_clock::universal_time();
-
-   spin_wait swait;
-   do{
-      if(this->try_lock()){
-         break;
-      }
-      now = microsec_clock::universal_time();
-
-      if(now >= abs_time){
-         return false;
-      }
-      // relinquish current time slice
-      swait.yield();
-   }while (true);
-   return true;
+   return ipcdetail::try_based_timed_lock(*this, abs_time);
 
    #endif   //BOOST_INTERPROCESS_POSIX_TIMEOUTS
 }
 
 inline void posix_mutex::unlock()