fixed adding file problem

[c11concurrency-benchmarks.git] / gdax-orderbook-hpp / demo / dependencies / libcds-2.3.2 / cds / gc / details / retired_ptr.h

diff --git a/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/gc/details/retired_ptr.h b/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/gc/details/retired_ptr.h
new file mode 100644 (file)
index 0000000..a581afd
--- /dev/null
+++ b/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/gc/details/retired_ptr.h
@@ -0,0 +1,148 @@
+/*
+    This file is a part of libcds - Concurrent Data Structures library
+
+    (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2017
+
+    Source code repo: http://github.com/khizmax/libcds/
+    Download: http://sourceforge.net/projects/libcds/files/
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this
+      list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+    OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef CDSLIB_GC_DETAILS_RETIRED_PTR_H
+#define CDSLIB_GC_DETAILS_RETIRED_PTR_H
+
+#include <cds/details/defs.h>
+#include <cds/details/static_functor.h>
+
+//@cond
+namespace cds { namespace gc {
+    /// Common implementation details for any GC
+    namespace details {
+
+        /// Pointer to function to free (destruct and deallocate) retired pointer of specific type
+        typedef void (* free_retired_ptr_func )( void * );
+
+        /// Retired pointer
+        /**
+            Pointer to an object that is ready to delete.
+        */
+        struct retired_ptr {
+            /// Pointer type
+            typedef void *          pointer;
+
+            union {
+                pointer                 m_p;        ///< retired pointer
+                uintptr_t               m_n;
+            };
+            free_retired_ptr_func   m_funcFree; ///< pointer to the destructor function
+
+            /// Comparison of two retired pointers
+            static bool less( const retired_ptr& p1, const retired_ptr& p2 ) noexcept
+            {
+                return p1.m_p < p2.m_p;
+            }
+
+            /// Default ctor initializes pointer to \p nullptr
+            retired_ptr() noexcept
+                : m_p( nullptr )
+                , m_funcFree( nullptr )
+            {}
+
+            /// Ctor
+            retired_ptr( pointer p, free_retired_ptr_func func ) noexcept
+                : m_p( p )
+                , m_funcFree( func )
+            {}
+
+            /// Typecasting ctor
+            template <typename T>
+            retired_ptr( T* p, free_retired_ptr_func func) noexcept
+                : m_p( reinterpret_cast<pointer>(p))
+                , m_funcFree( func )
+            {}
+/*
+            template <typename T>
+            retired_ptr( T * p, void (* pFreeFunc)(T *)) noexcept
+                : m_p( reinterpret_cast<pointer>(p))
+                , m_funcFree( reinterpret_cast< free_retired_ptr_func >( pFreeFunc ))
+            {}
+*/
+
+            /// Assignment operator
+            retired_ptr& operator =( retired_ptr const& s) noexcept
+            {
+                m_p = s.m_p;
+                m_funcFree = s.m_funcFree;
+                return *this;
+            }
+
+            /// Invokes destructor function for the pointer
+            void free()
+            {
+                assert( m_funcFree );
+                assert( m_p );
+                m_funcFree( m_p );
+
+                CDS_STRICT_DO( clear());
+            }
+
+            /// Checks if the retired pointer is not empty
+            explicit operator bool() const noexcept
+            {
+                return m_p != nullptr;
+            }
+
+            /// Clears retired pointer without \p free() call
+            void clear()
+            {
+                m_p = nullptr;
+                m_funcFree = nullptr;
+            }
+        };
+
+        static inline bool operator <( const retired_ptr& p1, const retired_ptr& p2 ) noexcept
+        {
+            return retired_ptr::less( p1, p2 );
+        }
+
+        static inline bool operator ==( const retired_ptr& p1, const retired_ptr& p2 ) noexcept
+        {
+            return p1.m_p == p2.m_p;
+        }
+
+        static inline bool operator !=( const retired_ptr& p1, const retired_ptr& p2 ) noexcept
+        {
+            return !(p1 == p2);
+        }
+    }  // namespace details
+
+    template <typename Func, typename T>
+    static inline cds::gc::details::retired_ptr make_retired_ptr( T * p )
+    {
+        return cds::gc::details::retired_ptr( p, cds::details::static_functor<Func, T>::call );
+    }
+
+}}   // namespace cds::gc
+//@endcond
+
+#endif // #ifndef CDSLIB_GC_DETAILS_RETIRED_PTR_H