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30891f35fa
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
117 lines
4.2 KiB
C
117 lines
4.2 KiB
C
/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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<https://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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