fixed adding file problem
[c11concurrency-benchmarks.git] / gdax-orderbook-hpp / demo / dependencies / libcds-2.3.2 / cds / os / sunos / timer.h
diff --git a/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/os/sunos/timer.h b/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/os/sunos/timer.h
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+/*
+    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_SUNOS_TIMER_H
+#define CDSLIB_OS_SUNOS_TIMER_H
+
+#ifndef CDSLIB_OS_TIMER_H
+#   error "<cds/os/timer.h> must be included"
+#endif
+
+#include <sys/time.h>
+
+//@cond none
+namespace cds { namespace OS {
+    inline namespace Sun {
+
+        // High resolution timer
+        class Timer {
+            hrtime_t    m_tmStart;
+        public:
+            typedef hrtime_t    native_timer_type;
+            typedef long long    native_duration_type;
+
+            Timer() : m_tmStart( current()) {}
+
+            static native_timer_type    current()            { return gethrtime();    }
+            static void current( native_timer_type& tmr )    { tmr = gethrtime();    }
+
+            double reset()
+            {
+                native_timer_type tt = current();
+                double ret = (tt - m_tmStart) / 1.0E9;  //gethrtime() freq = nanoseconds
+                m_tmStart = tt;
+                return ret;
+            }
+
+            double duration( native_duration_type dur )
+            {
+                return double( dur ) / 1.0E9;
+            }
+
+            double duration()
+            {
+                return duration( native_duration());
+            }
+
+            native_duration_type    native_duration()
+            {
+                return native_duration( m_tmStart, current());
+            }
+
+            static native_duration_type    native_duration( native_timer_type nStart, native_timer_type nEnd )
+            {
+                return native_duration_type( nEnd - nStart );
+            }
+
+            static unsigned long long random_seed()
+            {
+                return (unsigned long long) current();
+            }
+        };
+
+    }   // namespace Sun
+
+}}  // namespace cds::OS
+//@endcond
+
+#endif // #ifndef CDSLIB_OS_SUNOS_TIMER_H