fix: remove 'src/' from modules install path

[lttng-modules.git] / src / tests / clock-plugin / lttng-clock-plugin-test.c

diff --git a/src/tests/clock-plugin/lttng-clock-plugin-test.c b/src/tests/clock-plugin/lttng-clock-plugin-test.c
new file mode 100644 (file)
index 0000000..6c4213b
--- /dev/null
+++ b/src/tests/clock-plugin/lttng-clock-plugin-test.c
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
+ *
+ * lttng-clock-plugin-test.c
+ *
+ * Copyright (C) 2014, 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#include <linux/module.h>
+#include <linux/ktime.h>
+#include <linux/hrtimer.h>
+#include <linux/time.h>
+
+#include <lttng/tracer.h>
+#include <lttng/clock.h>       /* From lttng-modules */
+
+static u64 trace_clock_read64_example(void)
+{
+       /* Freeze time. */
+       return 0;
+}
+
+static u64 trace_clock_freq_example(void)
+{
+       return 1000;    /* 1KHz */
+}
+
+static int trace_clock_uuid_example(char *uuid)
+{
+       const char myuuid[] = "83c63deb-7aa4-48fb-abda-946f400d76e6";
+       memcpy(uuid, myuuid, LTTNG_MODULES_UUID_STR_LEN);
+       return 0;
+}
+
+static const char *trace_clock_name_example(void)
+{
+       return "lttng_test_clock_override";
+}
+
+static const char *trace_clock_description_example(void)
+{
+       return "Freeze time with 1KHz for regression test";
+}
+
+static
+struct lttng_trace_clock ltc = {
+       .read64 = trace_clock_read64_example,
+       .freq = trace_clock_freq_example,
+       .uuid = trace_clock_uuid_example,
+       .name = trace_clock_name_example,
+       .description = trace_clock_description_example,
+};
+
+static __init
+int lttng_clock_plugin_init(void)
+{
+       return lttng_clock_register_plugin(&ltc, THIS_MODULE);
+}
+fs_initcall(lttng_clock_plugin_init);
+
+static __exit
+void lttng_clock_plugin_exit(void)
+{
+       lttng_clock_unregister_plugin(&ltc, THIS_MODULE);
+}
+module_exit(lttng_clock_plugin_exit);
+
+MODULE_LICENSE("GPL and additional rights");
+MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers@efficios.com>");
+MODULE_DESCRIPTION("LTTng Clock Plugin Example");
+MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
+       __stringify(LTTNG_MODULES_MINOR_VERSION) "."
+       __stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)
+       LTTNG_MODULES_EXTRAVERSION);