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Diffstat (limited to 'mysql/my_rdtsc.h')
| -rw-r--r-- | mysql/my_rdtsc.h | 130 |
1 files changed, 130 insertions, 0 deletions
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 + |