fixed adding file problem

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

diff --git a/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/os/aix/timer.h b/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/os/aix/timer.h
new file mode 100644 (file)
index 0000000..289e7ce
--- /dev/null
+++ b/gdax-orderbook-hpp/demo/dependencies/libcds-2.3.2/cds/os/aix/timer.h
@@ -0,0 +1,116 @@
+/*
+    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_AIX_TIMER_H
+#define CDSLIB_OS_AIX_TIMER_H
+
+// Source: http://publib16.boulder.ibm.com/doc_link/en_US/a_doc_lib/libs/basetrf2/read_real_time.htm
+
+#ifndef CDSLIB_OS_TIMER_H
+#   error "<cds/os/timer.h> must be included"
+#endif
+
+#include <sys/time.h>
+#include <sys/systemcfg.h>
+
+//@cond none
+namespace cds { namespace OS {
+    inline namespace Aix {
+
+        // High resolution timer
+        class Timer {
+            timebasestruct_t    m_tmStart;
+
+        protected:
+            static unsigned long long nano( native_timer_type const& nStart, native_timer_type const& nEnd )
+            {
+                return (((unsigned long long) (nEnd.tb_high - nStart.tb_high)) << 32) + (nEnd.tb_low - nStart.tb_low);
+            }
+
+        public:
+            typedef timebasestruct_t    native_timer_type;
+            typedef long long            native_duration_type;
+
+            Timer() : m_tmStart( current()) {}
+
+            static native_timer_type    current()
+            {
+                native_timer_type tm;
+                current( &tm );
+                return tm;
+            }
+            static void current( native_timer_type& tmr )
+            {
+                read_real_time( &tmr, sizeof(tmr));
+                time_base_to_time( &tmr, sizeof(tmr ));
+            }
+
+            double reset()
+            {
+                native_timer_type tt;
+                current( tt );
+                double ret = nano( m_tmStart, tt ) / 1.0E9;
+                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 const & nStart, native_timer_type const & nEnd )
+            {
+                return nano( nStart, nEnd );
+            }
+
+            static unsigned long long random_seed()
+            {
+                native_timer_type tmr;
+                read_real_time( &tmr, sizeof(tmr));
+                return ( ((unsigned long long)(tmr.tb_hight)) << 32 ) + tmr.tb_low;
+            }
+        };
+    }    // namespace Aix
+
+}}   // namespace cds::OS
+//@endcond
+
+#endif // #ifndef CDSLIB_OS_AIX_TIMER_H