Imported Upstream version 1.62.0upstream/1.62.0

Change-Id: I9d4c1ddb7b7d8f0069217ecc582700f9fda6dd4c
Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/boost/fiber/mutex.hpp b/boost/fiber/mutex.hpp
new file mode 100644
index 0000000000..b56e96802a
--- /dev/null
+++ b/boost/fiber/mutex.hpp
@@ -0,0 +1,70 @@
+
+//          Copyright Oliver Kowalke 2013.
+// 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 BOOST_FIBERS_MUTEX_H
+#define BOOST_FIBERS_MUTEX_H
+
+#include <boost/config.hpp>
+
+#include <boost/assert.hpp>
+
+#include <boost/fiber/context.hpp>
+#include <boost/fiber/detail/config.hpp>
+#include <boost/fiber/detail/spinlock.hpp>
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_PREFIX
+#endif
+
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable:4251)
+#endif
+
+namespace boost {
+namespace fibers {
+
+class condition_variable;
+
+class BOOST_FIBERS_DECL mutex {
+private:
+    friend class condition_variable;
+
+    typedef context::wait_queue_t   wait_queue_t;
+
+    context                 *   owner_{ nullptr };
+    wait_queue_t                wait_queue_{};
+    detail::spinlock            wait_queue_splk_{};
+
+public:
+    mutex() = default;
+
+    ~mutex() {
+        BOOST_ASSERT( nullptr == owner_);
+        BOOST_ASSERT( wait_queue_.empty() );
+    }
+
+    mutex( mutex const&) = delete;
+    mutex & operator=( mutex const&) = delete;
+
+    void lock();
+
+    bool try_lock();
+
+    void unlock();
+};
+
+}}
+
+#ifdef _MSC_VER
+# pragma warning(pop)
+#endif
+
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_SUFFIX
+#endif
+
+#endif // BOOST_FIBERS_MUTEX_H