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email-tracker/external/duckdb/extension/tpcds/dsdgen/dsdgen-c/misc.cpp
2025-10-24 19:21:19 -05:00

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C++

/*
* Legal Notice
*
* This document and associated source code (the "Work") is a part of a
* benchmark specification maintained by the TPC.
*
* The TPC reserves all right, title, and interest to the Work as provided
* under U.S. and international laws, including without limitation all patent
* and trademark rights therein.
*
* No Warranty
*
* 1.1 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE INFORMATION
* CONTAINED HEREIN IS PROVIDED "AS IS" AND WITH ALL FAULTS, AND THE
* AUTHORS AND DEVELOPERS OF THE WORK HEREBY DISCLAIM ALL OTHER
* WARRANTIES AND CONDITIONS, EITHER EXPRESS, IMPLIED OR STATUTORY,
* INCLUDING, BUT NOT LIMITED TO, ANY (IF ANY) IMPLIED WARRANTIES,
* DUTIES OR CONDITIONS OF MERCHANTABILITY, OF FITNESS FOR A PARTICULAR
* PURPOSE, OF ACCURACY OR COMPLETENESS OF RESPONSES, OF RESULTS, OF
* WORKMANLIKE EFFORT, OF LACK OF VIRUSES, AND OF LACK OF NEGLIGENCE.
* ALSO, THERE IS NO WARRANTY OR CONDITION OF TITLE, QUIET ENJOYMENT,
* QUIET POSSESSION, CORRESPONDENCE TO DESCRIPTION OR NON-INFRINGEMENT
* WITH REGARD TO THE WORK.
* 1.2 IN NO EVENT WILL ANY AUTHOR OR DEVELOPER OF THE WORK BE LIABLE TO
* ANY OTHER PARTY FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO THE
* COST OF PROCURING SUBSTITUTE GOODS OR SERVICES, LOST PROFITS, LOSS
* OF USE, LOSS OF DATA, OR ANY INCIDENTAL, CONSEQUENTIAL, DIRECT,
* INDIRECT, OR SPECIAL DAMAGES WHETHER UNDER CONTRACT, TORT, WARRANTY,
* OR OTHERWISE, ARISING IN ANY WAY OUT OF THIS OR ANY OTHER AGREEMENT
* RELATING TO THE WORK, WHETHER OR NOT SUCH AUTHOR OR DEVELOPER HAD
* ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
*
* Contributors:
* Gradient Systems
*/
#include "config.h"
#include "porting.h"
#include <stdio.h>
#include <time.h>
#include <errno.h>
#include <ctype.h>
#include <math.h>
#ifndef USE_STDLIB_H
#include <malloc.h>
#endif
#include <fcntl.h>
#ifdef AIX
#include <sys/mode.h>
#endif /* AIX */
#include <sys/types.h>
#include <sys/stat.h>
#include "date.h"
#include "decimal.h"
#include "dist.h"
#include "misc.h"
#include "tdefs.h"
#include "r_params.h"
#include "genrand.h"
static char alpha_num[65] = "0123456789abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ,";
char *getenv(const char *name);
int print_separator(int sep);
extern long Seed[];
#ifdef _WIN32
#define PATH_SEP '\\'
#else
#define PATH_SEP '/'
#endif
int file_num = -1;
/*
*
* Various routines that handle distributions, value selections and
* seed value management for the DSS benchmark. Current functions:
* env_config -- set config vars with optional environment override
* a_rnd(min, max) -- random alphanumeric within length range
*/
/*
* env_config: look for a environmental variable setting and return its
* value; otherwise return the default supplied
*/
char *env_config(char *var, char *dflt) {
static char *evar;
if ((evar = getenv(var)) != NULL)
return (evar);
else
return (dflt);
}
/*
* generate a random string with length randomly selected in [min, max]
* and using the characters in alphanum (currently includes a space
* and comma)
*/
int a_rnd(int min, int max, int column, char *dest) {
int i, len, char_int;
genrand_integer(&len, DIST_UNIFORM, min, max, 0, column);
for (i = 0; i < len; i++) {
if (i % 5 == 0)
genrand_integer(&char_int, DIST_UNIFORM, 0, 1 << 30, 0, column);
*(dest + i) = alpha_num[char_int & 077];
char_int >>= 6;
}
*(dest + len) = '\0';
return (len);
}