NdbTick.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* Copyright (C) 2003 MySQL AB
- 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; either version 2 of the License, or
- (at your option) any later version.
- 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #include <ndb_global.h>
- #include "NdbTick.h"
- //#include <windows.h>
- /*
- #define FILETIME_PER_MICROSEC 10
- #define FILETIME_PER_MILLISEC 10000
- #define FILETIME_PER_SEC 10000000
- NDB_TICKS NdbTick_CurrentMillisecond(void)
- {
- ULONGLONG ullTime;
- GetSystemTimeAsFileTime((LPFILETIME)&ullTime);
- return (ullTime / FILETIME_PER_MILLISEC);
- }
- int
- NdbTick_CurrentMicrosecond(NDB_TICKS * secs, Uint32 * micros)
- {
- ULONGLONG ullTime;
- GetSystemTimeAsFileTime((LPFILETIME)&ullTime);
- *secs = (ullTime / FILETIME_PER_SEC);
- *micros = (Uint32)((ullTime % FILETIME_PER_SEC) / FILETIME_PER_MICROSEC);
- return 0;
- }
- */
- NDB_TICKS NdbTick_CurrentMillisecond(void)
- {
- LARGE_INTEGER liCount, liFreq;
- QueryPerformanceCounter(&liCount);
- QueryPerformanceFrequency(&liFreq);
- return (liCount.QuadPart*1000) / liFreq.QuadPart;
- }
- int
- NdbTick_CurrentMicrosecond(NDB_TICKS * secs, Uint32 * micros)
- {
- LARGE_INTEGER liCount, liFreq;
- QueryPerformanceCounter(&liCount);
- QueryPerformanceFrequency(&liFreq);
- *secs = liCount.QuadPart / liFreq.QuadPart;
- liCount.QuadPart -= *secs * liFreq.QuadPart;
- *micros = (liCount.QuadPart*1000000) / liFreq.QuadPart;
- return 0;
- }