int main(int argc, char **argv)
{
- struct lttng_handle *handle = NULL;
- struct lttng_domain dom;
+ struct lttng_handle *handle = NULL;
+ struct lttng_domain dom;
struct lttng_channel channel;
struct lttng_event sched_switch;
struct lttng_event sched_process_exit;
struct lttng_event sched_process_free;
+ char *session_name = "kernel_event_basic";
+ int ret = 0;
- int ret = 0;
+ memset(&dom, 0, sizeof(dom));
+ memset(&channel, 0, sizeof(channel));
+ memset(&sched_switch, 0, sizeof(sched_switch));
+ memset(&sched_process_exit, 0, sizeof(sched_process_exit));
+ memset(&sched_process_free, 0, sizeof(sched_process_free));
- char *session_name = "kernel_event";
-
- dom.type = LTTNG_DOMAIN_KERNEL;
+ dom.type = LTTNG_DOMAIN_KERNEL;
strcpy(channel.name, "mychan");
channel.attr.overwrite = 0;
strcpy(sched_switch.name, "sched_switch");
sched_switch.type = LTTNG_EVENT_TRACEPOINT;
+ sched_switch.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
strcpy(sched_process_exit.name, "sched_process_exit");
sched_process_exit.type = LTTNG_EVENT_TRACEPOINT;
+ sched_process_exit.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
strcpy(sched_process_free.name, "sched_process_free");
sched_process_free.type = LTTNG_EVENT_TRACEPOINT;
+ sched_process_free.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
printf("\nTesting tracing kernel events:\n");
printf("-----------\n");
}
printf("Creating tracing session (%s): ", argv[1]);
- if ((ret = lttng_create_session(session_name, argv[1])) < 0) {
- printf("error creating the session : %s\n", lttng_strerror(ret));
+ if ((ret = lttng_create_session(session_name, argv[1])) < 0) {
+ printf("error creating the session : %s\n", lttng_strerror(ret));
goto create_fail;
- }
+ }
PRINT_OK();
printf("Creating session handle: ");
}
printf("Enabling %s kernel event: ", sched_switch.name);
- if ((ret = lttng_enable_event(handle, &sched_switch, channel.name)) < 0) {
- printf("error enabling event: %s\n", lttng_strerror(ret));
+ if ((ret = lttng_enable_event(handle, &sched_switch, channel.name)) < 0) {
+ printf("error enabling event: %s\n", lttng_strerror(ret));
goto enable_fail;
- }
+ }
PRINT_OK();
printf("Enabling %s kernel event: ", sched_process_exit.name);
lttng_destroy_session(session_name);
lttng_destroy_handle(handle);
- return 1;
+ return 1;
}