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dff8da6b | 1 | /* Copyright (C) 2002-2024 Free Software Foundation, Inc. |
c4a6d859 | 2 | This file is part of the GNU C Library. |
c4a6d859 UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
c4a6d859 UD |
17 | |
18 | #include <argp.h> | |
19 | ||
20 | ||
21 | ||
22 | ||
23 | #define OPT_TO_THREAD 300 | |
24 | #define OPT_TO_PROCESS 301 | |
25 | #define OPT_SYNC_SIGNAL 302 | |
26 | #define OPT_SYNC_JOIN 303 | |
27 | #define OPT_TOPLEVEL 304 | |
28 | ||
29 | ||
4c7e2bb0 | 30 | static const struct argp_option test_options[] = |
c4a6d859 UD |
31 | { |
32 | { NULL, 0, NULL, 0, "\ | |
7f0d9e61 | 33 | This is a test for threads so we allow the user to select the number of \ |
c4a6d859 UD |
34 | threads which are used at any one time. Independently the total number of \ |
35 | rounds can be selected. This is the total number of threads which will have \ | |
36 | run when the process terminates:" }, | |
37 | { "threads", 't', "NUMBER", 0, "Number of threads used at once" }, | |
38 | { "starts", 's', "NUMBER", 0, "Total number of working threads" }, | |
39 | { "toplevel", OPT_TOPLEVEL, "NUMBER", 0, | |
40 | "Number of toplevel threads which start the other threads; this \ | |
41 | implies --sync-join" }, | |
42 | ||
43 | { NULL, 0, NULL, 0, "\ | |
44 | Each thread can do one of two things: sleep or do work. The latter is 100% \ | |
45 | CPU bound. The work load is the probability a thread does work. All values \ | |
46 | from zero to 100 (inclusive) are valid. How often each thread repeats this \ | |
47 | can be determined by the number of rounds. The work cost determines how long \ | |
48 | each work session (not sleeping) takes. If it is zero a thread would \ | |
49 | effectively nothing. By setting the number of rounds to zero the thread \ | |
50 | does no work at all and pure thread creation times can be measured." }, | |
51 | { "workload", 'w', "PERCENT", 0, "Percentage of time spent working" }, | |
52 | { "workcost", 'c', "NUMBER", 0, | |
53 | "Factor in the cost of each round of working" }, | |
54 | { "rounds", 'r', "NUMBER", 0, "Number of rounds each thread runs" }, | |
55 | ||
56 | { NULL, 0, NULL, 0, "\ | |
57 | There are a number of different methods how thread creation can be \ | |
58 | synchronized. Synchronization is necessary since the number of concurrently \ | |
59 | running threads is limited." }, | |
60 | { "sync-signal", OPT_SYNC_SIGNAL, NULL, 0, | |
61 | "Synchronize using a signal (default)" }, | |
62 | { "sync-join", OPT_SYNC_JOIN, NULL, 0, "Synchronize using pthread_join" }, | |
63 | ||
64 | { NULL, 0, NULL, 0, "\ | |
65 | One parameter for each threads execution is the size of the stack. If this \ | |
66 | parameter is not used the system's default stack size is used. If many \ | |
67 | threads are used the stack size should be chosen quite small." }, | |
68 | { "stacksize", 'S', "BYTES", 0, "Size of threads stack" }, | |
69 | { "guardsize", 'g', "BYTES", 0, | |
70 | "Size of stack guard area; must fit into the stack" }, | |
71 | ||
72 | { NULL, 0, NULL, 0, "Signal options:" }, | |
73 | { "to-thread", OPT_TO_THREAD, NULL, 0, "Send signal to main thread" }, | |
74 | { "to-process", OPT_TO_PROCESS, NULL, 0, | |
75 | "Send signal to process (default)" }, | |
76 | ||
77 | { NULL, 0, NULL, 0, "Administrative options:" }, | |
78 | { "progress", 'p', NULL, 0, "Show signs of progress" }, | |
79 | { "timing", 'T', NULL, 0, | |
80 | "Measure time from startup to the last thread finishing" }, | |
81 | { NULL, 0, NULL, 0, NULL } | |
82 | }; | |
83 | ||
84 | /* Prototype for option handler. */ | |
85 | static error_t parse_opt (int key, char *arg, struct argp_state *state); | |
86 | ||
87 | /* Data structure to communicate with argp functions. */ | |
88 | static struct argp argp = | |
89 | { | |
4c7e2bb0 | 90 | test_options, parse_opt |
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91 | }; |
92 | ||
93 | ||
4c7e2bb0 UD |
94 | static int |
95 | do_test (void) | |
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96 | { |
97 | int argc = 2; | |
abbd6175 | 98 | char *argv[3] = { (char *) "tst-argp1", (char *) "--help", NULL }; |
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99 | int remaining; |
100 | ||
101 | /* Parse and process arguments. */ | |
102 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
107 | ||
108 | /* Handle program arguments. */ | |
109 | static error_t | |
110 | parse_opt (int key, char *arg, struct argp_state *state) | |
111 | { | |
112 | return ARGP_ERR_UNKNOWN; | |
113 | } | |
4c7e2bb0 UD |
114 | |
115 | #define TEST_FUNCTION do_test () | |
116 | #include "../test-skeleton.c" |