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authorRemko Tronçon <git@el-tramo.be>2009-06-01 08:48:42 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-06-01 09:24:28 (GMT)
commit2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
treed46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/thread/pthread/condition_variable.hpp
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+#ifndef BOOST_THREAD_CONDITION_VARIABLE_PTHREAD_HPP
+#define BOOST_THREAD_CONDITION_VARIABLE_PTHREAD_HPP
+// 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)
+// (C) Copyright 2007-8 Anthony Williams
+
+#include "timespec.hpp"
+#include "pthread_mutex_scoped_lock.hpp"
+#include "thread_data.hpp"
+#include "condition_variable_fwd.hpp"
+
+#include <boost/config/abi_prefix.hpp>
+
+namespace boost
+{
+ inline void condition_variable::wait(unique_lock<mutex>& m)
+ {
+ detail::interruption_checker check_for_interruption(&cond);
+ BOOST_VERIFY(!pthread_cond_wait(&cond,m.mutex()->native_handle()));
+ }
+
+ inline bool condition_variable::timed_wait(unique_lock<mutex>& m,boost::system_time const& wait_until)
+ {
+ detail::interruption_checker check_for_interruption(&cond);
+ struct timespec const timeout=detail::get_timespec(wait_until);
+ int const cond_res=pthread_cond_timedwait(&cond,m.mutex()->native_handle(),&timeout);
+ if(cond_res==ETIMEDOUT)
+ {
+ return false;
+ }
+ BOOST_ASSERT(!cond_res);
+ return true;
+ }
+
+ inline void condition_variable::notify_one()
+ {
+ BOOST_VERIFY(!pthread_cond_signal(&cond));
+ }
+
+ inline void condition_variable::notify_all()
+ {
+ BOOST_VERIFY(!pthread_cond_broadcast(&cond));
+ }
+
+ class condition_variable_any
+ {
+ pthread_mutex_t internal_mutex;
+ pthread_cond_t cond;
+
+ condition_variable_any(condition_variable&);
+ condition_variable_any& operator=(condition_variable&);
+
+ public:
+ condition_variable_any()
+ {
+ int const res=pthread_mutex_init(&internal_mutex,NULL);
+ if(res)
+ {
+ throw thread_resource_error();
+ }
+ int const res2=pthread_cond_init(&cond,NULL);
+ if(res2)
+ {
+ BOOST_VERIFY(!pthread_mutex_destroy(&internal_mutex));
+ throw thread_resource_error();
+ }
+ }
+ ~condition_variable_any()
+ {
+ BOOST_VERIFY(!pthread_mutex_destroy(&internal_mutex));
+ BOOST_VERIFY(!pthread_cond_destroy(&cond));
+ }
+
+ template<typename lock_type>
+ void wait(lock_type& m)
+ {
+ int res=0;
+ {
+ detail::interruption_checker check_for_interruption(&cond);
+ {
+ boost::pthread::pthread_mutex_scoped_lock internal_lock(&internal_mutex);
+ m.unlock();
+ res=pthread_cond_wait(&cond,&internal_mutex);
+ }
+ m.lock();
+ }
+ if(res)
+ {
+ throw condition_error();
+ }
+ }
+
+ template<typename lock_type,typename predicate_type>
+ void wait(lock_type& m,predicate_type pred)
+ {
+ while(!pred()) wait(m);
+ }
+
+ template<typename lock_type>
+ bool timed_wait(lock_type& m,boost::system_time const& wait_until)
+ {
+ struct timespec const timeout=detail::get_timespec(wait_until);
+ int res=0;
+ {
+ detail::interruption_checker check_for_interruption(&cond);
+ {
+ boost::pthread::pthread_mutex_scoped_lock internal_lock(&internal_mutex);
+ m.unlock();
+ res=pthread_cond_timedwait(&cond,&internal_mutex,&timeout);
+ }
+ m.lock();
+ }
+ if(res==ETIMEDOUT)
+ {
+ return false;
+ }
+ if(res)
+ {
+ throw condition_error();
+ }
+ return true;
+ }
+ template<typename lock_type>
+ bool timed_wait(lock_type& m,xtime const& wait_until)
+ {
+ return timed_wait(m,system_time(wait_until));
+ }
+
+ template<typename lock_type,typename duration_type>
+ bool timed_wait(lock_type& m,duration_type const& wait_duration)
+ {
+ return timed_wait(m,get_system_time()+wait_duration);
+ }
+
+ template<typename lock_type,typename predicate_type>
+ bool timed_wait(lock_type& m,boost::system_time const& wait_until,predicate_type pred)
+ {
+ while (!pred())
+ {
+ if(!timed_wait(m, wait_until))
+ return pred();
+ }
+ return true;
+ }
+
+ template<typename lock_type,typename predicate_type>
+ bool timed_wait(lock_type& m,xtime const& wait_until,predicate_type pred)
+ {
+ return timed_wait(m,system_time(wait_until),pred);
+ }
+
+ template<typename lock_type,typename duration_type,typename predicate_type>
+ bool timed_wait(lock_type& m,duration_type const& wait_duration,predicate_type pred)
+ {
+ return timed_wait(m,get_system_time()+wait_duration,pred);
+ }
+
+ void notify_one()
+ {
+ boost::pthread::pthread_mutex_scoped_lock internal_lock(&internal_mutex);
+ BOOST_VERIFY(!pthread_cond_signal(&cond));
+ }
+
+ void notify_all()
+ {
+ boost::pthread::pthread_mutex_scoped_lock internal_lock(&internal_mutex);
+ BOOST_VERIFY(!pthread_cond_broadcast(&cond));
+ }
+ };
+
+}
+
+#include <boost/config/abi_suffix.hpp>
+
+#endif