From c4a6d859943d9f35bad48b82530fae2ff3a323e7 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 4 Dec 2002 19:53:08 +0000 Subject: Update. 2002-12-04 Ulrich Drepper * argp/Makefile (tests): Add tst-argp1. --- argp/tst-argp1.c | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 argp/tst-argp1.c (limited to 'argp/tst-argp1.c') diff --git a/argp/tst-argp1.c b/argp/tst-argp1.c new file mode 100644 index 0000000000..7f29ff2e7d --- /dev/null +++ b/argp/tst-argp1.c @@ -0,0 +1,115 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 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 + + + + +#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; +} -- cgit v1.2.3