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Diffstat (limited to '3rdParty/Boost/boost/thread/win32/basic_recursive_mutex.hpp')
-rw-r--r--3rdParty/Boost/boost/thread/win32/basic_recursive_mutex.hpp120
1 files changed, 120 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/thread/win32/basic_recursive_mutex.hpp b/3rdParty/Boost/boost/thread/win32/basic_recursive_mutex.hpp
new file mode 100644
index 0000000..05eb8d7
--- /dev/null
+++ b/3rdParty/Boost/boost/thread/win32/basic_recursive_mutex.hpp
@@ -0,0 +1,120 @@
+#ifndef BOOST_BASIC_RECURSIVE_MUTEX_WIN32_HPP
+#define BOOST_BASIC_RECURSIVE_MUTEX_WIN32_HPP
+
+// basic_recursive_mutex.hpp
+//
+// (C) Copyright 2006-8 Anthony Williams
+//
+// 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)
+
+#include "thread_primitives.hpp"
+#include "basic_timed_mutex.hpp"
+
+#include <boost/config/abi_prefix.hpp>
+
+namespace boost
+{
+ namespace detail
+ {
+ template<typename underlying_mutex_type>
+ struct basic_recursive_mutex_impl
+ {
+ long recursion_count;
+ long locking_thread_id;
+ underlying_mutex_type mutex;
+
+ void initialize()
+ {
+ recursion_count=0;
+ locking_thread_id=0;
+ mutex.initialize();
+ }
+
+ void destroy()
+ {
+ mutex.destroy();
+ }
+
+ bool try_lock()
+ {
+ long const current_thread_id=win32::GetCurrentThreadId();
+ return try_recursive_lock(current_thread_id) || try_basic_lock(current_thread_id);
+ }
+
+ void lock()
+ {
+ long const current_thread_id=win32::GetCurrentThreadId();
+ if(!try_recursive_lock(current_thread_id))
+ {
+ mutex.lock();
+ BOOST_INTERLOCKED_EXCHANGE(&locking_thread_id,current_thread_id);
+ recursion_count=1;
+ }
+ }
+ bool timed_lock(::boost::system_time const& target)
+ {
+ long const current_thread_id=win32::GetCurrentThreadId();
+ return try_recursive_lock(current_thread_id) || try_timed_lock(current_thread_id,target);
+ }
+ template<typename Duration>
+ bool timed_lock(Duration const& timeout)
+ {
+ return timed_lock(get_system_time()+timeout);
+ }
+
+ void unlock()
+ {
+ if(!--recursion_count)
+ {
+ BOOST_INTERLOCKED_EXCHANGE(&locking_thread_id,0);
+ mutex.unlock();
+ }
+ }
+
+ private:
+ bool try_recursive_lock(long current_thread_id)
+ {
+ if(::boost::detail::interlocked_read_acquire(&locking_thread_id)==current_thread_id)
+ {
+ ++recursion_count;
+ return true;
+ }
+ return false;
+ }
+
+ bool try_basic_lock(long current_thread_id)
+ {
+ if(mutex.try_lock())
+ {
+ BOOST_INTERLOCKED_EXCHANGE(&locking_thread_id,current_thread_id);
+ recursion_count=1;
+ return true;
+ }
+ return false;
+ }
+
+ bool try_timed_lock(long current_thread_id,::boost::system_time const& target)
+ {
+ if(mutex.timed_lock(target))
+ {
+ BOOST_INTERLOCKED_EXCHANGE(&locking_thread_id,current_thread_id);
+ recursion_count=1;
+ return true;
+ }
+ return false;
+ }
+
+ };
+
+ typedef basic_recursive_mutex_impl<basic_timed_mutex> basic_recursive_mutex;
+ typedef basic_recursive_mutex_impl<basic_timed_mutex> basic_recursive_timed_mutex;
+ }
+}
+
+#define BOOST_BASIC_RECURSIVE_MUTEX_INITIALIZER {0}
+
+#include <boost/config/abi_suffix.hpp>
+
+#endif