projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| b02dcdb8 MD |
1 | /* |
| 2 | * Copyright (C) - 2012 David Goulet <dgoulet@efficios.com> | |
| 3 | * Copyright (C) - 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 4 | * | |
| 5 | * This library is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU Lesser General Public License as published by the | |
| 7 | * Free Software Foundation; version 2.1 of the License. | |
| 8 | * | |
| 9 | * This library is distributed in the hope that it will be useful, but WITHOUT | |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | |
| 12 | * for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU Lesser General Public License | |
| 15 | * along with this library; if not, write to the Free Software Foundation, | |
| 16 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | */ | |
| 18 | ||
| 70dac0d7 | 19 | #define _LGPL_SOURCE |
| b02dcdb8 MD |
20 | #include <assert.h> |
| 21 | #include <fcntl.h> | |
| 22 | #include <stdarg.h> | |
| 23 | #include <stdio.h> | |
| 24 | #include <stdlib.h> | |
| 25 | #include <string.h> | |
| 26 | #include <sys/mman.h> | |
| 27 | #include <sys/stat.h> | |
| 28 | #include <sys/types.h> | |
| 29 | #include <unistd.h> | |
| 30 | ||
| 31 | #include <lttng/tracef.h> | |
| 32 | ||
| 33 | const char *str = "test string"; | |
| 34 | ||
| 35 | void create_file(const char *path) | |
| 36 | { | |
| 37 | int ret; | |
| 38 | ||
| 39 | assert(path); | |
| 40 | ||
| 41 | ret = creat(path, S_IRWXU); | |
| 42 | if (ret < 0) { | |
| 43 | fprintf(stderr, "Failed to create file %s\n", path); | |
| 44 | return; | |
| 45 | } | |
| 46 | ||
| 47 | (void) close(ret); | |
| 48 | } | |
| 49 | ||
| 50 | int main(int argc, char **argv) | |
| 51 | { | |
| 52 | int i; | |
| 53 | unsigned int nr_iter = 100; | |
| 54 | useconds_t nr_usec = 0; | |
| 55 | char *tmp_file_path = NULL; | |
| 56 | ||
| 57 | if (argc >= 2) { | |
| 58 | nr_iter = atoi(argv[1]); | |
| 59 | } | |
| 60 | ||
| 61 | if (argc >= 3) { | |
| 62 | /* By default, don't wait unless user specifies. */ | |
| 63 | nr_usec = atoi(argv[2]); | |
| 64 | } | |
| 65 | ||
| 66 | if (argc >= 4) { | |
| 67 | tmp_file_path = argv[3]; | |
| 68 | } | |
| 69 | ||
| 70 | for (i = 0; i < nr_iter; i++) { | |
| 71 | tracef("Test message %d with string \"%s\"", i, str); | |
| 72 | ||
| 73 | /* | |
| 74 | * First loop we create the file if asked to indicate | |
| 75 | * that at least one tracepoint has been hit. | |
| 76 | */ | |
| 77 | if (i == 0 && tmp_file_path) { | |
| 78 | create_file(tmp_file_path); | |
| 79 | } | |
| 80 | usleep(nr_usec); | |
| 81 | } | |
| 82 | ||
| 83 | return 0; | |
| 84 | } |