fixed adding file problem

[c11concurrency-benchmarks.git] / gdax-orderbook-hpp / demo / dependencies / libcds-2.3.2 / cds / os / win / timer.h

diff --git a/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/os/win/timer.h b/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/os/win/timer.h
new file mode 100644 (file)
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--- /dev/null
+++ b/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/os/win/timer.h
@@ -0,0 +1,130 @@
+/*
+    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_OS_WIN_TIMER_H
+#define CDSLIB_OS_WIN_TIMER_H
+
+#ifndef CDSLIB_OS_TIMER_H
+#   error "<cds/os/timer.h> must be included"
+#endif
+
+#ifndef NOMINMAX
+#   define NOMINMAX
+#endif
+#include <windows.h>
+
+//@cond none
+namespace cds { namespace OS {
+    inline namespace Win32 {
+
+        /// High resolution timer
+        /**
+            Implementation of high resolution timer for Windows platforms.
+            The implementation build on QueryPerformanceCounter API.
+        */
+        class Timer {
+        public:
+            typedef LARGE_INTEGER    native_timer_type        ;    ///< Native timer type
+            typedef long long        native_duration_type    ;    ///< Native duration type
+
+        private:
+            native_timer_type    m_nFrequency;
+            native_timer_type    m_nStart;
+
+        public:
+            Timer()
+            {
+                ::QueryPerformanceFrequency( &m_nFrequency );
+                current( m_nStart );
+            }
+
+            /// Places into \p tmr the current time in native Windows format
+            static void current( native_timer_type& tmr )
+            {
+                ::QueryPerformanceCounter( &tmr );
+            }
+
+            /// Returns current time in native Windows format
+            static native_timer_type current()
+            {
+                native_timer_type    tmr;
+                current(tmr);
+                return tmr;
+            }
+
+            /// Sets internal start time to current time. Returns duration from prevoius start time to current.
+            double reset()
+            {
+                native_timer_type nCur;
+                current( nCur );
+                double dblRet = double(nCur.QuadPart - m_nStart.QuadPart) / m_nFrequency.QuadPart;
+                m_nStart.QuadPart = nCur.QuadPart;
+                return dblRet;
+            }
+
+            /// Translates \p dur from native format to seconds
+            double duration( native_duration_type dur )
+            {
+                return double( dur ) / m_nFrequency.QuadPart;
+            }
+
+            /// Returns duration (in seconds) from start time to current
+            double duration()
+            {
+                return duration( native_duration());
+            }
+
+            /// Returns duration (in native format) from start time to current
+            native_duration_type    native_duration()
+            {
+                native_timer_type ts;
+                current( ts );
+                return native_duration( m_nStart, ts );
+            }
+
+            /// Calculates duration (in native format) between \p nEnd and \p nStart
+            static native_duration_type    native_duration( const native_timer_type& nStart, const native_timer_type& nEnd )
+            {
+                return nEnd.QuadPart - nStart.QuadPart;
+            }
+
+            static unsigned long long random_seed()
+            {
+                return current().QuadPart;
+            }
+        };
+
+
+    }   // namespace Win32
+
+}}  // namespae cds::OS
+//@endcond
+
+#endif // #ifndef CDSLIB_OS_WIN_TIMER_H