#define _GNU_SOURCE
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <lttng/lttng.h>

int main(int argc, char **argv)
{
	int ret;
	struct lttng_handle *handle;
	struct lttng_channel chan;
	struct lttng_domain domain;

	domain.type = LTTNG_DOMAIN_UST;

	ret = lttng_create_session("mysession", "/tmp/mytraces");
	if (ret < 0) {
		fprintf(stderr, "Create session: %s", lttng_strerror(ret));
		goto end;
	}

	handle = lttng_create_handle("mysession", &domain);
	assert(handle);

	strcpy(chan.name, "mychan");
	chan.enabled = 1;

	chan.attr.overwrite = 0;
	chan.attr.subbuf_size = 1024;
	chan.attr.num_subbuf = 2;
	chan.attr.switch_timer_interval = 2000;
	chan.attr.read_timer_interval = 0;
	chan.attr.output = LTTNG_EVENT_MMAP;

	ret = lttng_enable_channel(handle, &chan);
	if (ret < 0) {
		fprintf(stderr, "Enable channel: %s", lttng_strerror(ret));
		goto end;
	}

end:
	return 0;
}