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118 lines
4.3 KiB
C
118 lines
4.3 KiB
C
/* Copyright (C) 2002-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <argp.h>
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#define OPT_TO_THREAD 300
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#define OPT_TO_PROCESS 301
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#define OPT_SYNC_SIGNAL 302
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#define OPT_SYNC_JOIN 303
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#define OPT_TOPLEVEL 304
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static const struct argp_option test_options[] =
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{
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{ NULL, 0, NULL, 0, "\
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This is a test for threads so we allow ther user to selection the number of \
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threads which are used at any one time. Independently the total number of \
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rounds can be selected. This is the total number of threads which will have \
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run when the process terminates:" },
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{ "threads", 't', "NUMBER", 0, "Number of threads used at once" },
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{ "starts", 's', "NUMBER", 0, "Total number of working threads" },
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{ "toplevel", OPT_TOPLEVEL, "NUMBER", 0,
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"Number of toplevel threads which start the other threads; this \
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implies --sync-join" },
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{ NULL, 0, NULL, 0, "\
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Each thread can do one of two things: sleep or do work. The latter is 100% \
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CPU bound. The work load is the probability a thread does work. All values \
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from zero to 100 (inclusive) are valid. How often each thread repeats this \
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can be determined by the number of rounds. The work cost determines how long \
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each work session (not sleeping) takes. If it is zero a thread would \
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effectively nothing. By setting the number of rounds to zero the thread \
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does no work at all and pure thread creation times can be measured." },
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{ "workload", 'w', "PERCENT", 0, "Percentage of time spent working" },
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{ "workcost", 'c', "NUMBER", 0,
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"Factor in the cost of each round of working" },
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{ "rounds", 'r', "NUMBER", 0, "Number of rounds each thread runs" },
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{ NULL, 0, NULL, 0, "\
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There are a number of different methods how thread creation can be \
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synchronized. Synchronization is necessary since the number of concurrently \
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running threads is limited." },
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{ "sync-signal", OPT_SYNC_SIGNAL, NULL, 0,
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"Synchronize using a signal (default)" },
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{ "sync-join", OPT_SYNC_JOIN, NULL, 0, "Synchronize using pthread_join" },
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{ NULL, 0, NULL, 0, "\
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One parameter for each threads execution is the size of the stack. If this \
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parameter is not used the system's default stack size is used. If many \
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threads are used the stack size should be chosen quite small." },
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{ "stacksize", 'S', "BYTES", 0, "Size of threads stack" },
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{ "guardsize", 'g', "BYTES", 0,
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"Size of stack guard area; must fit into the stack" },
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{ NULL, 0, NULL, 0, "Signal options:" },
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{ "to-thread", OPT_TO_THREAD, NULL, 0, "Send signal to main thread" },
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{ "to-process", OPT_TO_PROCESS, NULL, 0,
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"Send signal to process (default)" },
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{ NULL, 0, NULL, 0, "Administrative options:" },
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{ "progress", 'p', NULL, 0, "Show signs of progress" },
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{ "timing", 'T', NULL, 0,
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"Measure time from startup to the last thread finishing" },
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{ NULL, 0, NULL, 0, NULL }
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};
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/* Prototype for option handler. */
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static error_t parse_opt (int key, char *arg, struct argp_state *state);
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/* Data structure to communicate with argp functions. */
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static struct argp argp =
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{
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test_options, parse_opt
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};
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static int
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do_test (void)
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{
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int argc = 2;
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char *argv[3] = { (char *) "tst-argp1", (char *) "--help", NULL };
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int remaining;
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/* Parse and process arguments. */
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argp_parse (&argp, argc, argv, 0, &remaining, NULL);
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return 0;
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}
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/* Handle program arguments. */
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static error_t
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parse_opt (int key, char *arg, struct argp_state *state)
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{
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return ARGP_ERR_UNKNOWN;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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