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 sys_enter;
- struct lttng_event sys_exit;
+ 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(sys_enter.name, "sys_enter");
- sys_enter.type = LTTNG_EVENT_TRACEPOINT;
+ 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(sys_exit.name, "sys_exit");
- sys_exit.type = LTTNG_EVENT_TRACEPOINT;
+ 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_get_readable_code(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: ");
if ((handle = lttng_create_handle(session_name, &dom)) == NULL) {
- printf("error creating handle: %s\n", lttng_get_readable_code(ret));
+ printf("error creating handle: %s\n", lttng_strerror(ret));
goto handle_fail;
}
PRINT_OK();
printf("Enabling %s kernel channel: ", channel.name);
if ((ret = lttng_enable_channel(handle, &channel)) < 0) {
- printf("error enable channel: %s\n", lttng_get_readable_code(ret));
+ printf("error enable channel: %s\n", lttng_strerror(ret));
goto enable_fail;
}
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_get_readable_code(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: ", sys_enter.name);
- if ((ret = lttng_enable_event(handle, &sys_enter, channel.name)) < 0) {
- printf("error enabling event: %s\n", lttng_get_readable_code(ret));
+ printf("Enabling %s kernel event: ", sched_process_exit.name);
+ if ((ret = lttng_enable_event(handle, &sched_process_exit, channel.name)) < 0) {
+ printf("error enabling event: %s\n", lttng_strerror(ret));
goto enable_fail;
}
PRINT_OK();
- printf("Enabling %s kernel event: ", sys_exit.name);
- if ((ret = lttng_enable_event(handle, &sys_exit, channel.name)) < 0) {
- printf("error enabling event: %s\n", lttng_get_readable_code(ret));
+ printf("Enabling %s kernel event: ", sched_process_free.name);
+ if ((ret = lttng_enable_event(handle, &sched_process_free, channel.name)) < 0) {
+ printf("error enabling event: %s\n", lttng_strerror(ret));
goto enable_fail;
}
PRINT_OK();
printf("Disabling %s kernel event: ", sched_switch.name);
if ((ret = lttng_disable_event(handle, sched_switch.name, channel.name)) < 0) {
- printf("error enabling event: %s\n", lttng_get_readable_code(ret));
+ printf("error enabling event: %s\n", lttng_strerror(ret));
goto enable_fail;
}
PRINT_OK();
- printf("Disabling %s kernel event: ", sys_exit.name);
- if ((ret = lttng_disable_event(handle, sys_exit.name, channel.name)) < 0) {
- printf("error enabling event: %s\n", lttng_get_readable_code(ret));
+ printf("Disabling %s kernel event: ", sched_process_free.name);
+ if ((ret = lttng_disable_event(handle, sched_process_free.name, channel.name)) < 0) {
+ printf("error enabling event: %s\n", lttng_strerror(ret));
goto enable_fail;
}
PRINT_OK();
printf("Renabling %s kernel event: ", sched_switch.name);
if ((ret = lttng_enable_event(handle, &sched_switch, channel.name)) < 0) {
- printf("error enabling event: %s\n", lttng_get_readable_code(ret));
+ printf("error enabling event: %s\n", lttng_strerror(ret));
goto enable_fail;
}
PRINT_OK();
- printf("Renabling %s kernel event: ", sys_exit.name);
- if ((ret = lttng_enable_event(handle, &sys_exit, channel.name)) < 0) {
- printf("error enabling event: %s\n", lttng_get_readable_code(ret));
+ printf("Renabling %s kernel event: ", sched_process_free.name);
+ if ((ret = lttng_enable_event(handle, &sched_process_free, channel.name)) < 0) {
+ printf("error enabling event: %s\n", lttng_strerror(ret));
goto enable_fail;
}
PRINT_OK();
printf("Start tracing: ");
- if ((ret = lttng_start_tracing(handle)) < 0) {
- printf("error starting tracing: %s\n", lttng_get_readable_code(ret));
+ if ((ret = lttng_start_tracing(session_name)) < 0) {
+ printf("error starting tracing: %s\n", lttng_strerror(ret));
goto start_fail;
}
PRINT_OK();
sleep(2);
printf("Stop tracing: ");
- if ((ret = lttng_stop_tracing(handle)) < 0) {
- printf("error stopping tracing: %s\n", lttng_get_readable_code(ret));
+ if ((ret = lttng_stop_tracing(session_name)) < 0) {
+ printf("error stopping tracing: %s\n", lttng_strerror(ret));
goto stop_fail;
}
PRINT_OK();
printf("Destroy tracing session: ");
- if ((ret = lttng_destroy_session(handle)) < 0) {
- printf("error destroying session: %s\n", lttng_get_readable_code(ret));
+ if ((ret = lttng_destroy_session(session_name)) < 0) {
+ printf("error destroying session: %s\n", lttng_strerror(ret));
}
PRINT_OK();
stop_fail:
start_fail:
enable_fail:
- lttng_destroy_session(handle);
+ lttng_destroy_session(session_name);
lttng_destroy_handle(handle);
- return 1;
+ return 1;
}