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/*******************************************************************
Various utilities for Innobase.
(c) 1994, 1995 Innobase Oy
Created 5/11/1994 Heikki Tuuri
********************************************************************/
#include "ut0ut.h"
#ifdef UNIV_NONINL
#include "ut0ut.ic"
#endif
#include "ut0sort.h"
ibool ut_always_false = FALSE;
/************************************************************
The following function returns a clock time in milliseconds. */
ulint
ut_clock(void)
{
return((clock() * 1000) / CLOCKS_PER_SEC);
}
/**************************************************************
Returns system time. We do not specify the format of the time returned:
the only way to manipulate it is to use the function ut_difftime. */
ib_time_t
ut_time(void)
/*=========*/
{
return(time(NULL));
}
/**************************************************************
Returns the difference of two times in seconds. */
double
ut_difftime(
/*========*/
/* out: time2 - time1 expressed in seconds */
ib_time_t time2, /* in: time */
ib_time_t time1) /* in: time */
{
return(difftime(time2, time1));
}
/**************************************************************
Prints a timestamp to a file. */
void
ut_print_timestamp(
/*===============*/
FILE* file) /* in: file where to print */
{
#ifdef __WIN__
SYSTEMTIME cal_tm;
GetLocalTime(&cal_tm);
fprintf(file,"%02d%02d%02d %2d:%02d:%02d",
(int)cal_tm.wYear % 100,
(int)cal_tm.wMonth,
(int)cal_tm.wDay,
(int)cal_tm.wHour,
(int)cal_tm.wMinute,
(int)cal_tm.wSecond);
#else
struct tm cal_tm;
struct tm* cal_tm_ptr;
time_t tm;
time(&tm);
#ifdef HAVE_LOCALTIME_R
localtime_r(&tm, &cal_tm);
cal_tm_ptr = &cal_tm;
#else
cal_tm_ptr = localtime(&tm);
#endif
fprintf(file,"%02d%02d%02d %2d:%02d:%02d",
cal_tm_ptr->tm_year % 100,
cal_tm_ptr->tm_mon+1,
cal_tm_ptr->tm_mday,
cal_tm_ptr->tm_hour,
cal_tm_ptr->tm_min,
cal_tm_ptr->tm_sec);
#endif
}
/*****************************************************************
Runs an idle loop on CPU. The argument gives the desired delay
in microseconds on 100 MHz Pentium + Visual C++. */
ulint
ut_delay(
/*=====*/
/* out: dummy value */
ulint delay) /* in: delay in microseconds on 100 MHz Pentium */
{
ulint i, j;
j = 0;
for (i = 0; i < delay * 50; i++) {
j += i;
}
if (ut_always_false) {
printf("%lu", j);
}
return(j);
}
/*****************************************************************
Prints the contents of a memory buffer in hex and ascii. */
void
ut_print_buf(
/*=========*/
byte* buf, /* in: memory buffer */
ulint len) /* in: length of the buffer */
{
byte* data;
ulint i;
printf(" len %lu; hex ", len);
data = buf;
for (i = 0; i < len; i++) {
printf("%02lx", (ulint)*data);
data++;
}
printf("; asc ");
data = buf;
for (i = 0; i < len; i++) {
if (isprint((char)(*data))) {
printf("%c", (char)*data);
}
data++;
}
printf(";");
}
/*****************************************************************
Prints the contents of a memory buffer in hex and ascii. */
ulint
ut_sprintf_buf(
/*===========*/
/* out: printed length in bytes */
char* str, /* in: buffer to print to */
byte* buf, /* in: memory buffer */
ulint len) /* in: length of the buffer */
{
byte* data;
ulint n;
ulint i;
n = 0;
n += sprintf(str + n, " len %lu; hex ", len);
data = buf;
for (i = 0; i < len; i++) {
n += sprintf(str + n, "%02lx", (ulint)*data);
data++;
}
n += sprintf(str + n, "; asc ");
data = buf;
for (i = 0; i < len; i++) {
if (isprint((char)(*data))) {
n += sprintf(str + n, "%c", (char)*data);
}
data++;
}
n += sprintf(str + n, ";");
return(n);
}
/****************************************************************
Sort function for ulint arrays. */
void
ut_ulint_sort(ulint* arr, ulint* aux_arr, ulint low, ulint high)
/*============================================================*/
{
UT_SORT_FUNCTION_BODY(ut_ulint_sort, arr, aux_arr, low, high,
ut_ulint_cmp);
}
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