Commit | Line | Data |
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7e0cc23b CB |
1 | /* |
2 | * Copyright (C) - 2012 David Goulet <dgoulet@efficios.com> | |
3 | * | |
4 | * This library is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU Lesser General Public License as published by the | |
6 | * Free Software Foundation; version 2.1 of the License. | |
7 | * | |
8 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
11 | * for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public License | |
14 | * along with this library; if not, write to the Free Software Foundation, | |
15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
17 | ||
70dac0d7 | 18 | #define _LGPL_SOURCE |
a4c30524 | 19 | #include <getopt.h> |
209b934f | 20 | #include <assert.h> |
7e0cc23b | 21 | #include <arpa/inet.h> |
209b934f | 22 | #include <fcntl.h> |
7e0cc23b CB |
23 | #include <stdarg.h> |
24 | #include <stdio.h> | |
25 | #include <stdlib.h> | |
26 | #include <string.h> | |
27 | #include <sys/mman.h> | |
28 | #include <sys/stat.h> | |
29 | #include <sys/types.h> | |
30 | #include <unistd.h> | |
0fc2834c | 31 | #include <stdbool.h> |
5fcaccbc MD |
32 | #include <signal.h> |
33 | #include <poll.h> | |
34 | #include <errno.h> | |
ae941114 | 35 | #include "utils.h" |
95983a02 | 36 | #include "signal-helper.h" |
7e0cc23b CB |
37 | |
38 | #define TRACEPOINT_DEFINE | |
39 | #include "tp.h" | |
40 | ||
a4c30524 JR |
41 | static struct option long_options[] = |
42 | { | |
43 | /* These options set a flag. */ | |
44 | {"iter", required_argument, 0, 'i'}, | |
45 | {"wait", required_argument, 0, 'w'}, | |
46 | {"sync-after-first-event", required_argument, 0, 'a'}, | |
47 | {"sync-before-last-event", required_argument, 0, 'b'}, | |
503315ec | 48 | {"sync-before-last-event-touch", required_argument, 0, 'c'}, |
a4c30524 JR |
49 | {0, 0, 0, 0} |
50 | }; | |
51 | ||
7e0cc23b CB |
52 | int main(int argc, char **argv) |
53 | { | |
0fc2834c | 54 | unsigned int i, netint; |
a4c30524 JR |
55 | int option_index; |
56 | char option_char; | |
7e0cc23b CB |
57 | long values[] = { 1, 2, 3 }; |
58 | char text[10] = "test"; | |
59 | double dbl = 2.0; | |
60 | float flt = 2222.0; | |
b2047add | 61 | int nr_iter = 100, ret = 0, first_event_file_created = 0; |
7e0cc23b | 62 | useconds_t nr_usec = 0; |
5fcaccbc MD |
63 | char *after_first_event_file_path = NULL; |
64 | char *before_last_event_file_path = NULL; | |
503315ec JR |
65 | /* |
66 | * Touch a file to indicate that all events except one were | |
67 | * generated. | |
68 | */ | |
69 | char *before_last_event_file_path_touch = NULL; | |
7e0cc23b | 70 | |
a4c30524 JR |
71 | while((option_char = getopt_long(argc, argv, "i:w:a:b:c:d:", long_options, &option_index)) != -1) { |
72 | switch (option_char) { | |
73 | case 'a': | |
74 | after_first_event_file_path = strdup(optarg); | |
75 | break; | |
76 | case 'b': | |
77 | before_last_event_file_path = strdup(optarg); | |
78 | break; | |
503315ec JR |
79 | case 'c': |
80 | before_last_event_file_path_touch = strdup(optarg); | |
81 | break; | |
a4c30524 JR |
82 | case 'i': |
83 | nr_iter = atoi(optarg); | |
84 | break; | |
85 | case 'w': | |
86 | nr_usec = atoi(optarg); | |
87 | break; | |
88 | case '?': | |
89 | /* getopt_long already printed an error message. */ | |
90 | break; | |
91 | default: | |
92 | ret = -1; | |
93 | goto end; | |
94 | } | |
7e0cc23b CB |
95 | } |
96 | ||
a4c30524 JR |
97 | if (optind != argc) { |
98 | fprintf(stderr, "Error: takes long options only."); | |
99 | ret = -1; | |
100 | goto end; | |
7e0cc23b CB |
101 | } |
102 | ||
5fcaccbc | 103 | |
a4c30524 JR |
104 | if (set_signal_handler()) { |
105 | ret = -1; | |
106 | goto end; | |
209b934f DG |
107 | } |
108 | ||
0fc2834c | 109 | for (i = 0; nr_iter < 0 || i < nr_iter; i++) { |
5fcaccbc MD |
110 | if (nr_iter >= 0 && i == nr_iter - 1) { |
111 | /* | |
112 | * Wait on synchronization before writing last | |
113 | * event. | |
114 | */ | |
503315ec JR |
115 | if (before_last_event_file_path_touch) { |
116 | ret = create_file(before_last_event_file_path_touch); | |
117 | if (ret != 0) { | |
118 | goto end; | |
119 | } | |
120 | } | |
b2047add FD |
121 | if (before_last_event_file_path) { |
122 | ret = wait_on_file(before_last_event_file_path); | |
123 | if (ret != 0) { | |
124 | goto end; | |
125 | } | |
126 | } | |
5fcaccbc | 127 | } |
7e0cc23b | 128 | netint = htonl(i); |
5fcaccbc MD |
129 | tracepoint(tp, tptest, i, netint, values, text, |
130 | strlen(text), dbl, flt); | |
209b934f DG |
131 | |
132 | /* | |
5fcaccbc MD |
133 | * First loop we create the file if asked to indicate |
134 | * that at least one tracepoint has been hit. | |
209b934f | 135 | */ |
b2047add FD |
136 | if (after_first_event_file_path && first_event_file_created == 0) { |
137 | ret = create_file(after_first_event_file_path); | |
138 | ||
139 | if (ret != 0) { | |
140 | goto end; | |
141 | } else { | |
142 | first_event_file_created = 1; | |
143 | } | |
144 | } | |
145 | ||
b734f5f7 | 146 | if (nr_usec) { |
ae941114 JG |
147 | if (usleep_safe(nr_usec)) { |
148 | ret = -1; | |
149 | goto end; | |
150 | } | |
b734f5f7 | 151 | } |
95983a02 JG |
152 | if (should_quit) { |
153 | break; | |
154 | } | |
7e0cc23b CB |
155 | } |
156 | ||
ae941114 | 157 | end: |
a4c30524 JR |
158 | free(after_first_event_file_path); |
159 | free(before_last_event_file_path); | |
503315ec | 160 | free(before_last_event_file_path_touch); |
ae941114 | 161 | exit(!ret ? EXIT_SUCCESS : EXIT_FAILURE); |
7e0cc23b | 162 | } |