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minix/test/ipc/lib/parse_opts.c

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ipc tests by GQ
2009-09-21 16:53:53 +02:00
/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*/
/* $Id: parse_opts.c,v 1.10 2006/04/19 18:23:40 mreed10 Exp $ */
/**********************************************************
*
* OS Testing - Silicon Graphics, Inc.
*
* FUNCTION NAME : parse_opts
*
* FUNCTION TITLE : parse standard & user options for system call tests
*
* SYNOPSIS:
* #include "usctest.h"
*
* char *parse_opts(ac, av, user_optarr, uhf)
* int ac;
* char **av;
* option_t user_optarr[];
* void (*uhf)();
*
* AUTHOR : William Roske/Richard Logan
*
* INITIAL RELEASE : UNICOS 7.0
*
* DESCRIPTION
* The parse_opts library routine takes that argc and argv parameters
* recevied by main() and an array of structures defining user options.
* It parses the command line setting flag and argument locations
* associated with the options. It uses getopt to do the actual cmd line
* parsing. uhf() is a function to print user define help
*
* This module contains the functions usc_global_setup_hook and
* usc_test_looping, which are called by marcos defined in usctest.h.
*
* RETURN VALUE
* parse_opts returns a pointer to an error message if an error occurs.
* This pointer is (char *)NULL if parsing is successful.
*
*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/signal.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/time.h>
#if UNIT_TEST
#include <time.h>
#endif /* UNIT_TEST */
#include "test.h"
#define _USC_LIB_ 1 /* indicates we are the library to the usctest.h include */
#include "usctest.h"
#ifndef USC_COPIES
#define USC_COPIES "USC_COPIES"
#endif
#ifndef UNIT_TEST
#define UNIT_TEST 0
#endif
#ifndef DEBUG
#define DEBUG 0
#endif
/* The timing information block. */
struct tblock tblock={0,((long) -1)>>1,0,0};
/* Define flags and args for standard options */
int STD_FUNCTIONAL_TEST=1, /* flag indicating to do functional testing code */
STD_TIMING_ON=0, /* flag indicating to print timing stats */
STD_PAUSE=0, /* flag indicating to pause before actual start, */
/* for contention mode */
STD_INFINITE=0, /* flag indciating to loop forever */
STD_LOOP_COUNT=1, /* number of iterations */
STD_COPIES=1, /* number of copies */
STD_ERRNO_LOG=0; /* flag indicating to do errno logging */
float STD_LOOP_DURATION=0.0, /* duration value in fractional seconds */
STD_LOOP_DELAY=0.0; /* loop delay value in fractional seconds */
char **STD_opt_arr = NULL; /* array of option strings */
int STD_nopts=0, /* number of elements in STD_opt_arr */
STD_argind=1; /* argv index to next argv element */
/* (first argument) */
/* To getopt users, it is like optind */
/*
* The following variables are to support system testing additions.
*/
static int STD_TP_barrier=0; /* flag to do barrier in TEST_PAUSE */
/* 2 - wait_barrier(), 3 - set_barrier(), * - barrier() */
static int STD_LP_barrier=0; /* flag to do barrier in TEST_LOOPING */
/* 2 - wait_barrier(), 3 - set_barrier(), * - barrier() */
static int STD_TP_shmem_sz=0; /* shmalloc this many words per pe in TEST_PAUSE */
static int STD_LD_shmem=0; /* flag to do shmem_puts and shmem_gets during delay */
static int STD_LP_shmem=0; /* flag to do shmem_puts and gets during TEST_LOOPING */
static int STD_LD_recfun=0; /* do recressive function calls in loop delay */
static int STD_LP_recfun=0; /* do recressive function calls in TEST_LOOPING */
static int STD_TP_sbrk=0; /* do sbrk in TEST_PAUSE */
static int STD_LP_sbrk=0; /* do sbrk in TEST_LOOPING */
static char *STD_start_break=0; /* original sbrk size */
static int Debug=0;
struct std_option_t {
char *optstr;
char *help;
char *flag;
char **arg;
} std_options[] = {
{ "c:", " -c n Run n copies concurrently\n", NULL, NULL},
{ "e" , " -e Turn on errno logging\n", NULL, NULL},
{ "f" , " -f Turn off functional testing\n", NULL, NULL},
{ "h" , " -h Show this help screen\n", NULL, NULL},
{ "i:", " -i n Execute test n times\n", NULL, NULL},
{ "I:", " -I x Execute test for x seconds\n", NULL, NULL},
{ "p" , " -p Pause for SIGUSR1 before starting\n", NULL, NULL},
{ "P:", " -P x Pause for x seconds between iterations\n", NULL, NULL},
{ "t" , " -t Turn on syscall timing\n", NULL, NULL},
#ifdef UCLINUX
{ "C:", " -C ARG Run the child process with arguments ARG (for internal use)\n",
NULL, NULL},
#endif
{NULL, NULL, NULL, NULL}};
void print_help(void (*user_help)(void));
/*
* Structure for usc_recressive_func argument
*/
struct usc_bigstack_t {
char space[4096];
};
static struct usc_bigstack_t *STD_bigstack=NULL;
/*
* Counter of errnos returned (-e option). Indexed by errno.
* Make the array USC_MAX_ERRNO long. That is the first Fortran
* Lib errno. No syscall should return an errno that high.
*/
int STD_ERRNO_LIST[USC_MAX_ERRNO];
/* define the string length for Mesg and Mesg2 strings */
#define STRLEN 2048
static char Mesg2[STRLEN]; /* holds possible return string */
static void usc_recressive_func(int, int, struct usc_bigstack_t *);
/*
* Define bits for options that might have env variable default
*/
#define OPT_iteration 01
#define OPT_nofunccheck 02
#define OPT_duration 04
#define OPT_delay 010
#define OPT_copies 020
#ifdef UCLINUX
/* Allocated and used in self_exec.c: */
extern char *child_args; /* Arguments to child when -C is used */
#endif
/**********************************************************************
* parse_opts:
**********************************************************************/
char *
parse_opts(int ac, char **av, option_t *user_optarr, void (*uhf)(void))
{
int found; /* flag to indicate that an option specified was */
/* found in the user's list */
int k; /* scratch integer for returns and short time usage */
float ftmp; /* tmp float for parsing env variables */
char *ptr; /* used in getting env variables */
int options=0; /* no options specified */
int optstrlen, i;
char *optionstr;
int opt; /* return of getopt */
/*
* If not the first time this function is called, release the old STD_opt_arr
* vector.
*/
if ( STD_opt_arr != NULL ) {
free(STD_opt_arr);
STD_opt_arr=NULL;
}
/* Calculate how much space we need for the option string */
optstrlen = 0;
for (i = 0; std_options[i].optstr; ++i)
optstrlen += strlen(std_options[i].optstr);
if (user_optarr)
for (i = 0; user_optarr[i].option; ++i) {
if (strlen(user_optarr[i].option) > 2)
return "parse_opts: ERROR - Only short options are allowed";
optstrlen += strlen(user_optarr[i].option);
}
optstrlen += 1;
/* Create the option string for getopt */
optionstr = (char *)malloc(optstrlen);
if (!optionstr)
return "parse_opts: ERROR - Could not allocate memory for optionstr";
optionstr[0] = '\0';
for (i = 0; std_options[i].optstr; ++i)
strcat(optionstr, std_options[i].optstr);
if (user_optarr)
for (i = 0; user_optarr[i].option; ++i)
/* only add the option if it wasn't there already */
if (strchr(optionstr, user_optarr[i].option[0]) == NULL)
strcat(optionstr, user_optarr[i].option);
#if DEBUG > 1
printf("STD_nopts = %d\n", STD_nopts);
#endif
/*
* Loop through av parsing options.
*/
while ( (opt = getopt(ac, av, optionstr)) > 0) {
STD_argind = optind;
#if DEBUG > 0
printf("parse_opts: getopt returned '%c'\n", opt);
#endif
switch (opt) {
case '?': /* Unknown option */
return "Unknown option";
break;
case ':': /* Missing Arg */
return "Missing argument";
break;
case 'i': /* Iterations */
options |= OPT_iteration;
STD_LOOP_COUNT = atoi(optarg);
if (STD_LOOP_COUNT == 0) STD_INFINITE = 1;
break;
case 'P': /* Delay between iterations */
options |= OPT_delay;
STD_LOOP_DELAY = atof(optarg);
break;
case 'I': /* Time duration */
options |= OPT_duration;
STD_LOOP_DURATION = atof(optarg);
if ( STD_LOOP_DURATION == 0.0 ) STD_INFINITE=1;
break;
case 'c': /* Copies */
options |= OPT_copies;
STD_COPIES = atoi(optarg);
break;
case 'f': /* Functional testing */
STD_FUNCTIONAL_TEST = 0;
break;
case 'p': /* Pause for SIGUSR1 */
STD_PAUSE = 1;
break;
case 't': /* syscall timing */
STD_TIMING_ON = 1;
break;
case 'e': /* errno loggin */
STD_ERRNO_LOG = 1;
break;
case 'h': /* Help */
print_help(uhf);
exit(0);
break;
#ifdef UCLINUX
case 'C': /* Run child */
child_args = optarg;
break;
#endif
default:
/* Check all the user specified options */
found=0;
for(i = 0; user_optarr[i].option; ++i) {
if (opt == user_optarr[i].option[0]) {
/* Yup, This is a user option, set the flag and look for argument */
if ( user_optarr[i].flag ) {
*user_optarr[i].flag=1;
}
found++;
/* save the argument at the user's location */
if ( user_optarr[i].option[strlen(user_optarr[i].option)-1] == ':' ) {
*user_optarr[i].arg=optarg;
}
break; /* option found - break out of the for loop */
}
}
/* This condition "should never happen". SO CHECK FOR IT!!!! */
if ( ! found ) {
sprintf(Mesg2,
"parse_opts: ERROR - option:\"%c\" NOT FOUND... INTERNAL ERROR", opt);
return(Mesg2);
}
}
} /* end of while */
free(optionstr);
STD_argind = optind;
/*
* Turn on debug
*/
if ( (ptr=getenv("USC_DEBUG")) != NULL ) {
Debug=1;
printf("env USC_DEBUG is defined, turning on debug\n");
}
if ( (ptr=getenv("USC_VERBOSE")) != NULL ) {
Debug=1;
printf("env USC_VERBOSE is defined, turning on debug\n");
}
/*
* If the USC_ITERATION_ENV environmental variable is set to
* a number, use that number as iteration count (same as -c option).
* The -c option with arg will be used even if this env var is set.
*/
if ( !(options & OPT_iteration) && (ptr=getenv(USC_ITERATION_ENV)) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1) {
if ( k == 0 ) { /* if arg is 0, set infinite loop flag */
STD_INFINITE=1;
if ( Debug )
printf("Using env %s, set STD_INFINITE to 1\n",
USC_ITERATION_ENV);
} else { /* else, set the loop count to the arguement */
STD_LOOP_COUNT=k;
if ( Debug )
printf("Using env %s, set STD_LOOP_COUNT to %d\n",
USC_ITERATION_ENV, k);
}
}
}
/*
* If the USC_NO_FUNC_CHECK environmental variable is set, we'll
* unset the STD_FUNCTIONAL_TEST variable.
*/
if ( !(options & OPT_nofunccheck) && (ptr=getenv(USC_NO_FUNC_CHECK)) != NULL ) {
STD_FUNCTIONAL_TEST=0; /* Turn off functional testing */
if ( Debug )
printf("Using env %s, set STD_FUNCTIONAL_TEST to 0\n",
USC_NO_FUNC_CHECK);
}
/*
* If the USC_LOOP_WALLTIME environmental variable is set,
* use that number as duration (same as -I option).
* The -I option with arg will be used even if this env var is set.
*/
if ( !(options & OPT_duration) && (ptr=getenv(USC_LOOP_WALLTIME)) != NULL ) {
if ( sscanf(ptr, "%f", &ftmp) == 1 && ftmp >= 0.0 ) {
STD_LOOP_DURATION=ftmp;
if ( Debug )
printf("Using env %s, set STD_LOOP_DURATION to %f\n",
USC_LOOP_WALLTIME, ftmp);
if ( STD_LOOP_DURATION == 0.0 ) { /* if arg is 0, set infinite loop flag */
STD_INFINITE=1;
if ( Debug )
printf("Using env %s, set STD_INFINITE to 1\n", USC_LOOP_WALLTIME);
}
}
}
if ( !(options & OPT_duration) && (ptr=getenv("USC_DURATION")) != NULL ) {
if ( sscanf(ptr, "%f", &ftmp) == 1 && ftmp >= 0.0 ) {
STD_LOOP_DURATION=ftmp;
if ( Debug )
printf("Using env USC_DURATION, set STD_LOOP_DURATION to %f\n", ftmp);
if ( STD_LOOP_DURATION == 0.0 ) { /* if arg is 0, set infinite loop flag */
STD_INFINITE=1;
if ( Debug )
printf("Using env USC_DURATION, set STD_INFINITE to 1\n");
}
}
}
/*
* If the USC_LOOP_DELAY environmental variable is set,
* use that number as delay in factional seconds (same as -P option).
* The -P option with arg will be used even if this env var is set.
*/
if ( !(options & OPT_delay) && (ptr=getenv(USC_LOOP_DELAY)) != NULL ) {
if ( sscanf(ptr, "%f", &ftmp) == 1 && ftmp >= 0.0 ) {
STD_LOOP_DELAY=ftmp;
if ( Debug )
printf("Using env %s, set STD_LOOP_DELAY = %f\n",
USC_LOOP_DELAY, ftmp);
}
}
/*
* If the USC_COPIES environmental variable is set,
* use that number as copies (same as -c option).
* The -c option with arg will be used even if this env var is set.
*/
if ( !(options & OPT_copies) && (ptr=getenv(USC_COPIES)) != NULL ) {
if ( sscanf(ptr, "%d", &STD_COPIES) == 1 && STD_COPIES >= 0 ) {
if ( Debug )
printf("Using env %s, set STD_COPIES = %d\n",
USC_COPIES, STD_COPIES);
}
}
/*
* The following are special system testing envs to turn on special
* hooks in the code.
*/
if ( (ptr=getenv("USC_TP_BARRIER")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_TP_barrier=k;
}
else
STD_TP_barrier=1;
if ( Debug )
printf("using env USC_TP_BARRIER, Set STD_TP_barrier to %d\n",
STD_TP_barrier);
}
if ( (ptr=getenv("USC_LP_BARRIER")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_LP_barrier=k;
}
else
STD_LP_barrier=1;
if ( Debug )
printf("using env USC_LP_BARRIER, Set STD_LP_barrier to %d\n",
STD_LP_barrier);
}
if ( (ptr=getenv("USC_TP_SHMEM")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_TP_shmem_sz=k;
if ( Debug )
printf("Using env USC_TP_SHMEM, Set STD_TP_shmem_sz to %d\n",
STD_TP_shmem_sz);
}
}
if ( (ptr=getenv("USC_LP_SHMEM")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_LP_shmem=k;
if ( Debug )
printf("Using env USC_LP_SHMEM, Set STD_LP_shmem to %d\n",
STD_LP_shmem);
}
}
if ( (ptr=getenv("USC_LD_SHMEM")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_LD_shmem=k;
if ( Debug )
printf("Using env USC_LD_SHMEM, Set STD_LD_shmem to %d\n",
STD_LD_shmem);
}
}
if ( (ptr=getenv("USC_TP_SBRK")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_TP_sbrk=k;
if ( Debug )
printf("Using env USC_TP_SBRK, Set STD_TP_sbrk to %d\n",
STD_TP_sbrk);
}
}
#if !defined(UCLINUX)
if ( (ptr=getenv("USC_LP_SBRK")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_LP_sbrk=k;
if ( Debug )
printf("Using env USC_LP_SBRK, Set STD_LP_sbrk to %d\n",
STD_LP_sbrk);
}
}
#endif /* if !defined(UCLINUX) */
if ( (ptr=getenv("USC_LP_RECFUN")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_LP_recfun=k;
if ( STD_bigstack != (struct usc_bigstack_t *)NULL )
STD_bigstack=(struct usc_bigstack_t *)
malloc(sizeof(struct usc_bigstack_t));
if ( Debug )
printf("Using env USC_LP_RECFUN, Set STD_LP_recfun to %d\n",
STD_LP_recfun);
}
}
if ( (ptr=getenv("USC_LD_RECFUN")) != NULL ) {
if ( sscanf(ptr, "%i", &k) == 1 && k >= 0 ) {
STD_LD_recfun=k;
if ( STD_bigstack != (struct usc_bigstack_t *)NULL )
STD_bigstack=(struct usc_bigstack_t *)
malloc(sizeof(struct usc_bigstack_t));
if ( Debug )
printf("Using env USC_LD_RECFUN, Set STD_LD_recfun to %d\n",
STD_LD_recfun);
}
}
#if UNIT_TEST
printf("The following variables after option and env parsing:\n");
printf("STD_FUNCTIONAL_TEST = %d\n", STD_FUNCTIONAL_TEST);
printf("STD_LOOP_DURATION = %f\n", STD_LOOP_DURATION);
printf("STD_LOOP_DELAY = %f\n", STD_LOOP_DELAY);
printf("STD_COPIES = %d\n", STD_COPIES);
printf("STD_LOOP_COUNT = %d\n", STD_LOOP_COUNT);
printf("STD_INFINITE = %d\n", STD_INFINITE);
printf("STD_TIMING_ON = %d\n", STD_TIMING_ON);
printf("STD_ERRNO_LOG = %d\n", STD_ERRNO_LOG);
printf("STD_PAUSE = %d\n", STD_PAUSE);
#endif
return((char *) NULL);
} /* end of parse_opts */
/*********************************************************************
* print_help() - print help message and user help message
*********************************************************************/
void print_help(void (*user_help)(void))
{
STD_opts_help();
if (user_help) user_help();
}
/*********************************************************************
* STD_opts_help() - return a help string for the STD_OPTIONS.
*********************************************************************/
void
STD_opts_help(void)
{
int i;
for(i = 0; std_options[i].optstr; ++i) {
if (std_options[i].help)
printf(std_options[i].help);
}
}
/*
* routine to goto when we get the SIGUSR1 for STD_PAUSE
*/
void STD_go(int sig)
{
return;
}
/***********************************************************************
* This function will do desired end of global setup test
* hooks.
* Currently it will only do a pause waiting for sigusr1 if
* STD_PAUSE is set.
*
***********************************************************************/
int
usc_global_setup_hook(void)
{
#ifndef UCLINUX
int cnt;
/* temp variable to store old signal action to be restored after pause */
int (*_TMP_FUNC)(void);
/*
* Fork STD_COPIES-1 copies.
*/
for(cnt=1;cnt<STD_COPIES;cnt++) {
switch(fork() ) {
case -1:
fprintf(stderr, "%s: fork() failed, errno:%d %s\n",
__FILE__, errno, strerror(errno));
break;
case 0: /* child */
cnt=STD_COPIES; /* to stop the forking */
break;
default: /* parent */
break;
}
}
/*
* pause waiting for sigusr1.
*/
if ( STD_PAUSE ) {
_TMP_FUNC = (int (*)(void))signal(SIGUSR1, STD_go);
pause();
signal(SIGUSR1, (void (*)(int))_TMP_FUNC);
}
#if !defined(UCLINUX)
if ( STD_TP_sbrk || STD_LP_sbrk) {
STD_start_break=sbrk(0); /* get original sbreak size */
}
if ( STD_TP_sbrk ) {
sbrk(STD_TP_sbrk);
if ( Debug )
printf("after sbrk(%d)\n", STD_TP_sbrk);
}
#endif /* if !defined(UCLINUX) */
#endif
return 0;
}
#define USECS_PER_SEC 1000000 /* microseconds per second */
/***********************************************************************
* This function returns the number of get_current_time()'s return
* per second.
***********************************************************************/
static int
get_timepersec(void)
{
return USECS_PER_SEC; /* microseconds per second */
}
/***********************************************************************
* this function will get current time in microseconds since 1970.
***********************************************************************/
static int
get_current_time(void)
{
struct timeval curtime;
gettimeofday(&curtime, NULL);
/* microseconds since 1970 */
return (curtime.tv_sec*USECS_PER_SEC) + curtime.tv_usec;
}
/***********************************************************************
*
* This function will determine if test should continue iterating
* If the STD_INFINITE flag is set, return 1.
* If the STD_LOOP_COUNT variable is set, compare it against
* the counter.
* If the STD_LOOP_DURATION variable is set, compare current time against
* calculated stop_time.
* This function will return 1 until all desired looping methods
* have been met.
*
* counter integer is supplied by the user program.
***********************************************************************/
int
usc_test_looping(counter)
int counter;
{
static int first_time = 1;
static int stop_time = 0; /* stop time in rtc or usecs */
static int delay; /* delay in clocks or usecs */
int hertz=0; /* clocks per second or usecs per second */
int ct, end; /* current time, end delay time */
int keepgoing=0; /* used to determine return value */
/*
* If this is the first iteration and we are looping for
* duration of STD_LOOP_DURATION seconds (fractional) or
* doing loop delays, get the clocks per second.
*/
if ( first_time ) {
first_time=0;
if ( STD_LOOP_DELAY || STD_LOOP_DURATION ) {
hertz = get_timepersec();
}
/*
* If looping for duration, calculate stop time in
* clocks.
*/
if ( STD_LOOP_DURATION) {
ct=get_current_time();
stop_time=(int)((float)hertz * STD_LOOP_DURATION) + ct;
}
/*
* If doing delay each iteration, calcuate the number
* of clocks for each delay.
*/
if ( STD_LOOP_DELAY ) {
delay=(int)((float)hertz * STD_LOOP_DELAY);
}
}
/*
* if delay each iteration, loop for delay clocks.
* This will not be done on first iteration.
* The delay will happen before determining if
* there will be another iteration.
*/
else if ( STD_LOOP_DELAY ) {
ct=get_current_time();
end=ct+delay;
while ( ct < end ) {
/*
* The following are special test hooks in the delay loop.
*/
if ( STD_LD_recfun ) {
if ( Debug )
printf("calling usc_recressive_func(0, %d, STD_bigstack)\n",
STD_LD_recfun);
usc_recressive_func(0, STD_LD_recfun, STD_bigstack);
}
ct=get_current_time();
}
}
if ( STD_INFINITE ) {
keepgoing++;
}
if ( STD_LOOP_COUNT && counter < STD_LOOP_COUNT ) {
keepgoing++;
}
if ( STD_LOOP_DURATION != 0.0 && get_current_time() < stop_time ) {
keepgoing++;
}
if ( keepgoing == 0 )
return 0;
/*
* The following code allows special system testing hooks.
*/
if ( STD_LP_recfun ) {
if ( Debug )
printf("calling usc_recressive_func(0, %d, STD_bigstack)\n",
STD_LP_recfun);
usc_recressive_func(0, STD_LP_recfun, STD_bigstack);
}
#if !defined(UCLINUX)
if ( STD_LP_sbrk ) {
if ( Debug )
printf("about to do sbrk(%d)\n", STD_LP_sbrk);
sbrk(STD_LP_sbrk);
}
#endif
if ( keepgoing )
return 1;
else
return 0; /* done - stop iterating */
}
/*
* This function recressively calls itself max times.
*/
static void
usc_recressive_func(cnt, max, bstack)
int cnt;
int max;
struct usc_bigstack_t *bstack;
{
if ( cnt < max )
usc_recressive_func(cnt+1, max, bstack);
}
#if UNIT_TEST
/******************************************************************************
* UNIT TEST CODE
* UNIT TEST CODE
*
* this following code is provide so that unit testing can
* be done fairly easily.
******************************************************************************/
int Help = 0;
int Help2 = 0;
char *ptr;
/*
* Code from usctest.h that not part of this file since we are the library.
*/
struct usc_errno_t TEST_VALID_ENO[USC_MAX_ERRNO];
/***********************************************************************
* Globals for returning the return code and errno from the system call
* test macros.
***********************************************************************/
int TEST_RETURN;
int TEST_ERRNO;
/***********************************************************************
* temporary variables for determining max and min times in TEST macro
***********************************************************************/
long btime, etime, tmptime;
/* for test specific parse_opts options */
option_t Options[] = {
{ "help", &Help2, NULL }, /* -help option */
{ "h", &Help, NULL }, /* -h option */
{ TIMING, NULL, NULL}, /* disable -timing option */
#if INVALID_TEST_CASES
{ "missingflag", NULL, &ptr }, /* error */
{ "missingarg:", &Help, NULL }, /* error */
#endif /* INVALID_TEST_CASES */
{ NULL, NULL, NULL }
};
main(argc, argv)
int argc;
char **argv;
{
int lc;
char *msg;
struct timeval t;
int cnt;
if ( (msg=parse_opts(argc, argv,
(option_t *) Options)) != (char *) NULL ) {
printf("ERROR : %s\n", msg);
exit(1);
}
TEST_PAUSE;
for (lc=0; TEST_LOOPING(lc); lc++) {
TEST( gettimeofday(&t, NULL) );
printf("iter=%d: sec:%d, usec:%6.6d %s", lc+1, t.tv_sec,
t.tv_usec, ctime(&t.tv_sec));
}
TEST_CLEANUP;
exit(0);
}
#endif /* UNIT_TEST */
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