/* Copyright (C) 2002-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <argp.h>

#define OPT_TO_THREAD		300

#define OPT_TO_PROCESS		301

#define OPT_SYNC_SIGNAL		302

#define OPT_SYNC_JOIN		303

#define OPT_TOPLEVEL		304

static const struct argp_option test_options[] =

  {

    { NULL, 0, NULL, 0, "\

This is a test for threads so we allow ther user to selection the number of \

threads which are used at any one time.  Independently the total number of \

rounds can be selected.  This is the total number of threads which will have \

run when the process terminates:" },

    { "threads", 't', "NUMBER", 0, "Number of threads used at once" },

    { "starts", 's', "NUMBER", 0, "Total number of working threads" },

    { "toplevel", OPT_TOPLEVEL, "NUMBER", 0,

      "Number of toplevel threads which start the other threads; this \

implies --sync-join" },

    { NULL, 0, NULL, 0, "\

Each thread can do one of two things: sleep or do work.  The latter is 100% \

CPU bound.  The work load is the probability a thread does work.  All values \

from zero to 100 (inclusive) are valid.  How often each thread repeats this \

can be determined by the number of rounds.  The work cost determines how long \

each work session (not sleeping) takes.  If it is zero a thread would \

effectively nothing.  By setting the number of rounds to zero the thread \

does no work at all and pure thread creation times can be measured." },

    { "workload", 'w', "PERCENT", 0, "Percentage of time spent working" },

    { "workcost", 'c', "NUMBER", 0,

      "Factor in the cost of each round of working" },

    { "rounds", 'r', "NUMBER", 0, "Number of rounds each thread runs" },

    { NULL, 0, NULL, 0, "\

There are a number of different methods how thread creation can be \

synchronized.  Synchronization is necessary since the number of concurrently \

running threads is limited." },

    { "sync-signal", OPT_SYNC_SIGNAL, NULL, 0,

      "Synchronize using a signal (default)" },

    { "sync-join", OPT_SYNC_JOIN, NULL, 0, "Synchronize using pthread_join" },

    { NULL, 0, NULL, 0, "\

One parameter for each threads execution is the size of the stack.  If this \

parameter is not used the system's default stack size is used.  If many \

threads are used the stack size should be chosen quite small." },

    { "stacksize", 'S', "BYTES", 0, "Size of threads stack" },

    { "guardsize", 'g', "BYTES", 0,

      "Size of stack guard area; must fit into the stack" },

    { NULL, 0, NULL, 0, "Signal options:" },

    { "to-thread", OPT_TO_THREAD, NULL, 0, "Send signal to main thread" },

    { "to-process", OPT_TO_PROCESS, NULL, 0,

      "Send signal to process (default)" },

    { NULL, 0, NULL, 0, "Administrative options:" },

    { "progress", 'p', NULL, 0, "Show signs of progress" },

    { "timing", 'T', NULL, 0,

      "Measure time from startup to the last thread finishing" },

    { NULL, 0, NULL, 0, NULL }

  };

/* Prototype for option handler.  */

static error_t parse_opt (int key, char *arg, struct argp_state *state);

/* Data structure to communicate with argp functions.  */

static struct argp argp =

{

  test_options, parse_opt

};

static int

do_test (void)

{

  int argc = 2;

  char *argv[3] = { (char *) "tst-argp1", (char *) "--help", NULL };

  int remaining;

  /* Parse and process arguments.  */

  argp_parse (&argp, argc, argv, 0, &remaining, NULL);

  return 0;

}

/* Handle program arguments.  */

static error_t

parse_opt (int key, char *arg, struct argp_state *state)

{

  return ARGP_ERR_UNKNOWN;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"