2 * lttng-clock-override-test.c
4 * Copyright (c) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 * Copyright (c) 2015 Jonthan Rajotte <jonathan.rajotte-julien@efficios.com>
6 * Based on lttng-clock-override-example.c from LTTng-ust example
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 #include <lttng/ust-clock.h>
34 uint64_t plugin_read64(void)
41 uint64_t plugin_freq(void)
43 return 1000; /* 1KHz clock (very coarse!) */
47 int plugin_uuid(char *uuid
)
49 const char myuuid
[] = "83c63deb-7aa4-48fb-abda-946f400d76e6";
50 memcpy(uuid
, myuuid
, LTTNG_UST_UUID_STR_LEN
);
55 const char *plugin_name(void)
57 return "lttng_test_clock_override";
61 const char *plugin_description(void)
63 return "Freeze time with 1KHz for regression test";
66 void lttng_ust_clock_plugin_init(void)
70 ret
= lttng_ust_trace_clock_set_read64_cb(plugin_read64
);
72 fprintf(stderr
, "Error setting clock override read64 callback: %s\n",
76 ret
= lttng_ust_trace_clock_set_freq_cb(plugin_freq
);
78 fprintf(stderr
, "Error setting clock override freq callback: %s\n",
82 ret
= lttng_ust_trace_clock_set_uuid_cb(plugin_uuid
);
84 fprintf(stderr
, "Error setting clock override uuid callback: %s\n",
89 ret
= lttng_ust_trace_clock_set_name_cb(plugin_name
);
91 fprintf(stderr
, "Error setting clock override name callback: %s\n",
96 ret
= lttng_ust_trace_clock_set_description_cb(plugin_description
);
98 fprintf(stderr
, "Error setting clock override description callback: %s\n",
103 ret
= lttng_ust_enable_trace_clock_override();
105 fprintf(stderr
, "Error enabling clock override: %s\n",
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