--- /dev/null
+/* Copyright (C) 2002 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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 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 =
+{
+ options, parse_opt
+};
+
+
+int
+main (void)
+{
+ int argc = 2;
+ char *argv[3] = { "tst-argp1", "--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;
+}
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