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Diffstat (limited to 'src/kernel/tests/lib/parse_opts.c')
| -rw-r--r-- | src/kernel/tests/lib/parse_opts.c | 621 |
1 files changed, 621 insertions, 0 deletions
diff --git a/src/kernel/tests/lib/parse_opts.c b/src/kernel/tests/lib/parse_opts.c new file mode 100644 index 0000000..a9d5058 --- /dev/null +++ b/src/kernel/tests/lib/parse_opts.c @@ -0,0 +1,621 @@ +/* + * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. + * AUTHOR : William Roske/Richard Logan + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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/ + */ + +#include "config.h" +#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 <time.h> +#include <stdint.h> + +#include "test.h" +#include "ltp_priv.h" +#include "usctest.h" +#include "tst_clocks.h" + +#ifndef UNIT_TEST +#define UNIT_TEST 0 +#endif + +/* Define flags and args for standard options */ +static int STD_INFINITE = 0; /* flag indciating to loop forever */ +int STD_LOOP_COUNT = 1; /* number of iterations */ + +static float STD_LOOP_DURATION = 0.0; /* duration value in fractional seconds */ + +static char **STD_opt_arr = NULL; /* array of option strings */ +static int 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; + +static struct std_option_t { + char *optstr; + char *help; + char *flag; + char **arg; +} std_options[] = { + {"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}, +#ifdef UCLINUX + {"C:", + " -C ARG Run the child process with arguments ARG (for internal use)\n", + NULL, NULL}, +#endif + {NULL, NULL, NULL, NULL} +}; + +/* + * Structure for usc_recressive_func argument + */ +struct usc_bigstack_t { + char space[4096]; +}; + +static struct usc_bigstack_t *STD_bigstack = NULL; + +/* 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(); + +/* + * Define bits for options that might have env variable default + */ +#define OPT_iteration 01 +#define OPT_duration 04 +#define OPT_delay 010 + +#ifdef UCLINUX +/* Allocated and used in self_exec.c: */ +extern char *child_args; /* Arguments to child when -C is used */ +#endif + +static void print_help(void (*user_help)(void)) +{ + int i; + + for (i = 0; std_options[i].optstr; ++i) { + if (std_options[i].help) + printf("%s", std_options[i].help); + } + + if (user_help) + user_help(); +} + +/********************************************************************** + * parse_opts: + **********************************************************************/ +const char *parse_opts(int ac, char **av, const 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; + + /* + * 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 = 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); + + /* + * Loop through av parsing options. + */ + while ((opt = getopt(ac, av, optionstr)) > 0) { + + STD_argind = optind; + + 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 'I': /* Time duration */ + options |= OPT_duration; + STD_LOOP_DURATION = atof(optarg); + if (STD_LOOP_DURATION == 0.0) + STD_INFINITE = 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); + } + } + + } + free(optionstr); + + STD_argind = optind; + + /* + * Turn on debug + */ + if (getenv("USC_DEBUG") != NULL) { + Debug = 1; + printf("env USC_DEBUG is defined, turning on debug\n"); + } + if (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_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"); + } + } + } + + /* + * 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 != NULL) + STD_bigstack = + 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 != NULL) + STD_bigstack = + 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_LOOP_DURATION = %f\n", STD_LOOP_DURATION); + printf("STD_LOOP_COUNT = %d\n", STD_LOOP_COUNT); + printf("STD_INFINITE = %d\n", STD_INFINITE); +#endif + + return NULL; +} + +/*********************************************************************** + * This function will do desired end of global setup test + * hooks. + ***********************************************************************/ +int usc_global_setup_hook(void) +{ +#ifndef 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 + return 0; +} + +#define USECS_PER_SEC 1000000 /* microseconds per second */ + +static uint64_t get_current_time(void) +{ + struct timespec ts; + + tst_clock_gettime(CLOCK_MONOTONIC, &ts); + + return (((uint64_t) ts.tv_sec) * USECS_PER_SEC) + ts.tv_nsec / 1000; +} + +/*********************************************************************** + * + * 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(int counter) +{ + static int first_time = 1; + static uint64_t stop_time = 0; + int keepgoing = 0; + + /* + * 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 looping for duration, calculate stop time in + * clocks. + */ + if (STD_LOOP_DURATION) { + stop_time = + (uint64_t) (USECS_PER_SEC * STD_LOOP_DURATION) + + 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; +} + +/* + * This function recressively calls itself max times. + */ +static void usc_recressive_func(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; + +long TEST_RETURN; +int TEST_ERRNO; + +/* for test specific parse_opts options */ +option_t Options[] = { + {"help", &Help2, NULL}, /* -help option */ + {"h", &Help, NULL}, /* -h option */ + +#if INVALID_TEST_CASES + {"missingflag", NULL, &ptr}, /* error */ + {"missingarg:", &Help, NULL}, /* error */ +#endif /* INVALID_TEST_CASES */ + + {NULL, NULL, NULL} +}; + +int main(int argc, char **argv) +{ + int lc; + char *msg; + struct timeval t; + int cnt; + + if ((msg = parse_opts(argc, argv, Options, NULL)) != 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 */ |