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Direktori : /proc/self/root/proc/self/root/proc/thread-self/root/usr/include/mysql/server/private/ |
Current File : //proc/self/root/proc/self/root/proc/thread-self/root/usr/include/mysql/server/private/my_rdtsc.h |
/* Copyright (c) 2008 MySQL AB, 2009 Sun Microsystems, Inc. Use is subject to license terms. 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 02110-1335 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 #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 #define MY_TIMER_ROUTINE_GETHRTIME 9 #define MY_TIMER_ROUTINE_READ_REAL_TIME 10 #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 #define MY_TIMER_ROUTINE_TIMES 17 #define MY_TIMER_ROUTINE_FTIME 18 #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_S390 28 #endif