From 354bb40e75d94466e91fe6960523612c9d17ccfb Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 2 Nov 2017 23:11:29 +0300
Subject: Add implementation

---
 mysql/my_rdtsc.h | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 mysql/my_rdtsc.h

(limited to 'mysql/my_rdtsc.h')

diff --git a/mysql/my_rdtsc.h b/mysql/my_rdtsc.h
new file mode 100644
index 0000000..0647096
--- /dev/null
+++ b/mysql/my_rdtsc.h
@@ -0,0 +1,130 @@
+/* Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+/*
+  rdtsc3 -- multi-platform timer code
+  pgulutzan@mysql.com, 2005-08-29
+  modified 2008-11-02
+*/
+
+#ifndef MY_RDTSC_H
+#define MY_RDTSC_H
+
+/**
+  Characteristics of a timer.
+*/
+struct my_timer_unit_info
+{
+  /** Routine used for the timer. */
+  ulonglong routine;
+  /** Overhead of the timer. */
+  ulonglong overhead;
+  /** Frequency of the  timer. */
+  ulonglong frequency;
+  /** Resolution of the timer. */
+  ulonglong resolution;
+};
+
+/**
+  Characteristics of all the supported timers.
+  @sa my_timer_init().
+*/
+struct my_timer_info
+{
+  /** Characteristics of the cycle timer. */
+  struct my_timer_unit_info cycles;
+  /** Characteristics of the nanosecond timer. */
+  struct my_timer_unit_info nanoseconds;
+  /** Characteristics of the microsecond timer. */
+  struct my_timer_unit_info microseconds;
+  /** Characteristics of the millisecond timer. */
+  struct my_timer_unit_info milliseconds;
+  /** Characteristics of the tick timer. */
+  struct my_timer_unit_info ticks;
+};
+
+typedef struct my_timer_info MY_TIMER_INFO;
+
+C_MODE_START
+
+/**
+  A cycle timer.
+  @return the current timer value, in cycles.
+*/
+ulonglong my_timer_cycles(void);
+
+/**
+  A namoseconds timer.
+  @return the current timer value, in nanoseconds.
+*/
+ulonglong my_timer_nanoseconds(void);
+
+/**
+  A microseconds timer.
+  @return the current timer value, in microseconds.
+*/
+ulonglong my_timer_microseconds(void);
+
+/**
+  A millisecond timer.
+  @return the current timer value, in milliseconds.
+*/
+ulonglong my_timer_milliseconds(void);
+
+/**
+  A ticks timer.
+  @return the current timer value, in ticks.
+*/
+ulonglong my_timer_ticks(void);
+
+/**
+  Timer initialization function.
+  @param [out] mti the timer characteristics.
+*/
+void my_timer_init(MY_TIMER_INFO *mti);
+
+C_MODE_END
+
+#define MY_TIMER_ROUTINE_ASM_X86                  1
+#define MY_TIMER_ROUTINE_ASM_X86_64               2
+/* #define MY_TIMER_ROUTINE_RDTSCLL                  3 - No longer used */
+#define MY_TIMER_ROUTINE_ASM_X86_WIN              4
+#define MY_TIMER_ROUTINE_RDTSC                    5
+#define MY_TIMER_ROUTINE_ASM_IA64                 6
+#define MY_TIMER_ROUTINE_ASM_PPC                  7
+/* #define MY_TIMER_ROUTINE_SGI_CYCLE                8  - No longer used */
+#define MY_TIMER_ROUTINE_GETHRTIME                9
+/* #define MY_TIMER_ROUTINE_READ_REAL_TIME          10  - No longer used */
+#define MY_TIMER_ROUTINE_CLOCK_GETTIME           11
+#define MY_TIMER_ROUTINE_NXGETTIME               12
+#define MY_TIMER_ROUTINE_GETTIMEOFDAY            13
+#define MY_TIMER_ROUTINE_QUERYPERFORMANCECOUNTER 14
+#define MY_TIMER_ROUTINE_GETTICKCOUNT            15
+/* #define MY_TIMER_ROUTINE_TIME                    16  - No longer used */
+#define MY_TIMER_ROUTINE_TIMES                   17
+/* #define MY_TIMER_ROUTINE_FTIME                   18  - No longer used */
+#define MY_TIMER_ROUTINE_ASM_PPC64               19
+#define MY_TIMER_ROUTINE_ASM_SUNPRO_SPARC64      20
+#define MY_TIMER_ROUTINE_ASM_SUNPRO_SPARC32      21
+#define MY_TIMER_ROUTINE_ASM_SUNPRO_I386         22
+#define MY_TIMER_ROUTINE_ASM_GCC_SPARC64         23
+#define MY_TIMER_ROUTINE_ASM_GCC_SPARC32         24
+#define MY_TIMER_ROUTINE_MACH_ABSOLUTE_TIME      25
+#define MY_TIMER_ROUTINE_GETSYSTEMTIMEASFILETIME 26
+#define MY_TIMER_ROUTINE_ASM_SUNPRO_X86_64       27
+#define MY_TIMER_ROUTINE_ASM_AARCH64             28
+
+#endif
+
-- 
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