#include "ut0ut.h"
#include "ut0sort.h"
#include "os0thread.h"
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include "trx0trx.h"
#include "ha_prototypes.h"
#include "mysql_com.h"

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Macros
#define	ut_gettimeofday gettimeofday

Functions
UNIV_INTERN ib_time_t	ut_time (void)
UNIV_INTERN int	ut_usectime (ulint sec, ulint ms)
UNIV_INTERN ullint	ut_time_us (ullint *tloc)
UNIV_INTERN ulint	ut_time_ms (void)
UNIV_INTERN double	ut_difftime (ib_time_t time2, ib_time_t time1)
UNIV_INTERN void	ut_print_timestamp (FILE *file)
UNIV_INTERN void	ut_sprintf_timestamp (char *buf)
UNIV_INTERN ulint	ut_delay (ulint delay)
UNIV_INTERN void	ut_print_buf (FILE file, const void buf, ulint len)
UNIV_INTERN void	ut_ulint_sort (ulint arr, ulint aux_arr, ulint low, ulint high)
UNIV_INTERN ulint	ut_2_power_up (ulint n)
UNIV_INTERN void	ut_print_filename (FILE f, const char name)
UNIV_INTERN void	ut_print_name (FILE f, const trx_t trx, ibool table_id, const char *name)
UNIV_INTERN void	ut_print_namel (FILE f, const trx_t trx, ibool table_id, const char *name, ulint namelen)
UNIV_INTERN char *	ut_format_name (const char name, ibool is_table, char formatted, ulint formatted_size)
UNIV_INTERN void	ut_copy_file (FILE dest, FILE src)
UNIV_INTERN const char *	ut_strerr (dberr_t num)

Variables
UNIV_INTERN ibool	ut_always_false = FALSE

Detailed Description

Various utilities for Innobase.

Created 5/11/1994 Heikki Tuuri

Definition in file ut0ut.cc.

Macro Definition Documentation

#define ut_gettimeofday gettimeofday

An alias for gettimeofday(2).  On Microsoft Windows, we have to

reimplement this function.

Definition at line 98 of file ut0ut.cc.

Function Documentation

UNIV_INTERN ulint ut_2_power_up ( ulint n )

Calculates fast the number rounded up to the nearest power of 2.

Returns: first power of 2 which is >= n

Parameters

n	in: number != 0

Definition at line 474 of file ut0ut.cc.

UNIV_INTERN void ut_copy_file	(	FILE *	dest,
		FILE *	src
	)

Catenate files.

Parameters

dest	in: output file
src	in: input file to be appended to output

Definition at line 612 of file ut0ut.cc.

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UNIV_INTERN ulint ut_delay ( ulint delay )

Runs an idle loop on CPU. The argument gives the desired delay in microseconds on 100 MHz Pentium + Visual C++.

Returns: dummy value

Parameters

delay in: delay in microseconds on 100 MHz Pentium

Definition at line 400 of file ut0ut.cc.

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UNIV_INTERN double ut_difftime	(	ib_time_t	time2,
		ib_time_t	time1
	)

Returns the difference of two times in seconds.

Returns: time2 - time1 expressed in seconds

Parameters

time2	in: time
time1	in: time

Definition at line 204 of file ut0ut.cc.

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UNIV_INTERN char* ut_format_name	(	const char *	name,
		ibool	is_table,
		char *	formatted,
		ulint	formatted_size
	)

Formats a table or index name, quoted as an SQL identifier. If the name contains a slash '/', the result will contain two identifiers separated by a period (.), as in SQL database_name.identifier.

Returns: pointer to 'formatted'

Parameters

name	in: table or index name, must be '\0'-terminated
is_table	in: if TRUE then 'name' is a table name
formatted	out: formatted result, will be '\0'-terminated
formatted_size	out: no more than this number of bytes will be written to 'formatted'

Definition at line 571 of file ut0ut.cc.

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UNIV_INTERN void ut_print_buf	(	FILE *	file,
		const void *	buf,
		ulint	len
	)

Prints the contents of a memory buffer in hex and ascii.

Parameters

file	in: file where to print
buf	in: memory buffer
len	in: length of the buffer

Definition at line 425 of file ut0ut.cc.

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UNIV_INTERN void ut_print_filename	(	FILE *	f,
		const char *	name
	)

Outputs a NUL-terminated file name, quoted with apostrophes.

Parameters

f	in: output stream
name	in: name to print

Definition at line 495 of file ut0ut.cc.

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UNIV_INTERN void ut_print_name	(	FILE *	f,
		const trx_t *	trx,
		ibool	table_id,
		const char *	name
	)

Outputs a fixed-length string, quoted as an SQL identifier. If the string contains a slash '/', the string will be output as two identifiers separated by a period (.), as in SQL database_name.identifier.

Parameters

f	in: output stream
trx	in: transaction
table_id	in: TRUE=print a table name, FALSE=print other identifier
name	in: name to print

Definition at line 524 of file ut0ut.cc.

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UNIV_INTERN void ut_print_namel	(	FILE *	f,
		const trx_t *	trx,
		ibool	table_id,
		const char *	name,
		ulint	namelen
	)

Outputs a fixed-length string, quoted as an SQL identifier. If the string contains a slash '/', the string will be output as two identifiers separated by a period (.), as in SQL database_name.identifier.

Parameters

f	in: output stream
trx	in: transaction (NULL=no quotes)
table_id	in: TRUE=print a table name, FALSE=print other identifier
name	in: name to print
namelen	in: length of name

Definition at line 542 of file ut0ut.cc.

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UNIV_INTERN void ut_print_timestamp ( FILE * file )

Prints a timestamp to a file.

Parameters

file	in: file where to print

Definition at line 218 of file ut0ut.cc.

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UNIV_INTERN void ut_sprintf_timestamp ( char * buf )

Sprintfs a timestamp to a buffer, 13..14 chars plus terminating NUL.

Parameters

buf	in: buffer where to sprintf

Definition at line 271 of file ut0ut.cc.

UNIV_INTERN const char* ut_strerr ( dberr_t num )

Convert an error number to a human readable text message. The returned string is static and should not be freed or modified.

Returns: string, describing the error

Parameters

num	in: error number

Definition at line 702 of file ut0ut.cc.

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UNIV_INTERN ib_time_t ut_time ( void )

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.

Returns: system time

Definition at line 107 of file ut0ut.cc.

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UNIV_INTERN ulint ut_time_ms ( void )

Returns the number of milliseconds since some epoch. The value may wrap around. It should only be used for heuristic purposes.

Returns: ms since epoch

Definition at line 188 of file ut0ut.cc.

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UNIV_INTERN ullint ut_time_us ( ullint * tloc )

Returns the number of microseconds since epoch. Similar to time(3), the return value is also stored in *tloc, provided that tloc is non-NULL.

Returns: us since epoch

Parameters

tloc	out: us since epoch, if non-NULL

Definition at line 163 of file ut0ut.cc.

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UNIV_INTERN void ut_ulint_sort	(	ulint *	arr,
		ulint *	aux_arr,
		ulint	low,
		ulint	high
	)

Sort function for ulint arrays.

Parameters

arr	in/out: array to sort
aux_arr	in/out: aux array to use in sort
low	in: lower bound
high	in: upper bound

Definition at line 458 of file ut0ut.cc.

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UNIV_INTERN int ut_usectime	(	ulint *	sec,
		ulint *	ms
	)

Returns system time. Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

Returns: 0 on success, -1 otherwise

Parameters

sec	out: seconds since the Epoch
ms	out: microseconds since the Epoch+*sec

Definition at line 122 of file ut0ut.cc.

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Variable Documentation

UNIV_INTERN ibool ut_always_false = FALSE

A constant to prevent the compiler from optimizing ut_delay() away.

Definition at line 48 of file ut0ut.cc.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation