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/* 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"
#define NANOSEC_PER_SEC 1000000000
#define MICROSEC_PER_SEC 1000000
#define MILLISEC_PER_SEC 1000
#define MICROSEC_PER_MILLISEC 1000
#define MILLISEC_PER_NANOSEC 1000000
#ifdef HAVE_CLOCK_GETTIME
NDB_TICKS NdbTick_CurrentMillisecond(void)
{
struct timespec tick_time;
clock_gettime(CLOCK_REALTIME, &tick_time);
return
((NDB_TICKS)tick_time.tv_sec) * ((NDB_TICKS)MILLISEC_PER_SEC) +
((NDB_TICKS)tick_time.tv_nsec) / ((NDB_TICKS)MILLISEC_PER_NANOSEC);
}
int
NdbTick_CurrentMicrosecond(NDB_TICKS * secs, Uint32 * micros){
struct timespec t;
int res = clock_gettime(CLOCK_REALTIME, &t);
* secs = t.tv_sec;
* micros = t.tv_nsec / 1000;
return res;
}
#else
NDB_TICKS NdbTick_CurrentMillisecond(void)
{
struct timeval tick_time;
gettimeofday(&tick_time, 0);
return
((NDB_TICKS)tick_time.tv_sec) * ((NDB_TICKS)MILLISEC_PER_SEC) +
((NDB_TICKS)tick_time.tv_usec) / ((NDB_TICKS)MICROSEC_PER_MILLISEC);
}
int
NdbTick_CurrentMicrosecond(NDB_TICKS * secs, Uint32 * micros){
struct timeval tick_time;
int res = gettimeofday(&tick_time, 0);
if(secs==0) {
NDB_TICKS secs = tick_time.tv_sec;
*micros = tick_time.tv_usec;
*micros = secs*1000000+*micros;
} else {
* secs = tick_time.tv_sec;
* micros = tick_time.tv_usec;
}
return res;
}
#endif
#ifdef TIME_MEASUREMENT
int
NdbTick_getMicroTimer(struct MicroSecondTimer* input_timer)
{
NDB_TICKS secs;
Uint32 mics;
int ret_value;
ret_value = NdbTick_CurrentMicrosecond(&secs, &mics);
input_timer->seconds = secs;
input_timer->micro_seconds = (NDB_TICKS)mics;
return ret_value;
}
NDB_TICKS
NdbTick_getMicrosPassed(struct MicroSecondTimer start,
struct MicroSecondTimer stop)
{
NDB_TICKS ret_value = (NDB_TICKS)0;
if (start.seconds < stop.seconds) {
NDB_TICKS sec_passed = stop.seconds - start.seconds;
ret_value = ((NDB_TICKS)MICROSEC_PER_SEC) * sec_passed;
} else if (start.seconds > stop.seconds) {
return ret_value;
}
if (start.micro_seconds < stop.micro_seconds) {
ret_value += (stop.micro_seconds - start.micro_seconds);
} else if (ret_value != (NDB_TICKS)0) {
ret_value -= (start.micro_seconds - stop.micro_seconds);
}
return ret_value;
}
#endif
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