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/*
* trigger_name.c
*
* Test that hidden triggers are not visible to liblttng-ctl.
*
* SPDX-FileCopyrightText: 2021 Jérémie Galarneau <jeremie.galarneau@efficios.com>
*
* SPDX-License-Identifier: MIT
*
*/
#include <common/macros.hpp>
#include <lttng/lttng.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <tap/tap.h>
#include <unistd.h>
#define TEST_COUNT 1
#define TEST_SESSION_NAME "test_session"
#define TEST_CHANNEL_NAME "test_channel"
static int get_registered_triggers_count()
{
int ret;
enum lttng_error_code ret_code;
enum lttng_trigger_status trigger_status;
struct lttng_triggers *triggers = nullptr;
unsigned int trigger_count;
ret_code = lttng_list_triggers(&triggers);
if (ret_code != LTTNG_OK) {
fail("Failed to list triggers");
ret = -1;
goto end;
}
trigger_status = lttng_triggers_get_count(triggers, &trigger_count);
if (trigger_status != LTTNG_TRIGGER_STATUS_OK) {
fail("Failed to get count of triggers returned by listing");
ret = -1;
goto end;
}
ret = (int) trigger_count;
end:
lttng_triggers_destroy(triggers);
return ret;
}
static int setup_session_with_size_rotation_schedule(const char *session_output_path)
{
int ret;
struct lttng_session_descriptor *session_desriptor = nullptr;
enum lttng_error_code ret_code;
struct lttng_handle ust_channel_handle = { TEST_SESSION_NAME,
{
.type = LTTNG_DOMAIN_UST,
.buf_type = LTTNG_BUFFER_PER_UID,
.padding = {},
.attr = {},
},
{} };
lttng_channel channel_cfg{};
strcpy(channel_cfg.name, TEST_CHANNEL_NAME);
channel_cfg.enabled = 1;
channel_cfg.attr.overwrite = -1;
channel_cfg.attr.subbuf_size = (uint64_t) sysconf(_SC_PAGE_SIZE) * 8;
channel_cfg.attr.num_subbuf = 8;
channel_cfg.attr.output = LTTNG_EVENT_MMAP;
enum lttng_rotation_status rotation_status;
struct lttng_rotation_schedule *rotation_schedule = nullptr;
session_desriptor =
lttng_session_descriptor_local_create(TEST_SESSION_NAME, session_output_path);
if (!session_desriptor) {
fail("Failed to create session descriptor for session `%s`", TEST_SESSION_NAME);
ret = -1;
goto end;
}
ret_code = lttng_create_session_ext(session_desriptor);
if (ret_code != LTTNG_OK) {
fail("Failed to create session `%s`: %s",
TEST_SESSION_NAME,
lttng_strerror(-ret_code));
ret = -1;
goto end;
}
ret = lttng_enable_channel(&ust_channel_handle, &channel_cfg);
if (ret) {
fail("Failed to enable channel `%s`: %s", TEST_CHANNEL_NAME, lttng_strerror(ret));
ret = -1;
goto end;
}
ret = lttng_start_tracing(TEST_SESSION_NAME);
if (ret) {
fail("Failed to start session `%s`: %s", TEST_SESSION_NAME, lttng_strerror(ret));
ret = -1;
goto end;
}
rotation_schedule = lttng_rotation_schedule_size_threshold_create();
if (!rotation_schedule) {
fail("Failed to create rotation schedule descriptor");
ret = -1;
goto end;
}
/*
* The rotation schedule size threshold doesn't matter; no event rules
* were specified so the session consumed size should not grow over
* time.
*/
rotation_status = lttng_rotation_schedule_size_threshold_set_threshold(
rotation_schedule, sysconf(_SC_PAGE_SIZE) * 4096);
if (rotation_status != LTTNG_ROTATION_STATUS_OK) {
fail("Failed to set size threshold of session rotation schedule");
ret = -1;
goto end;
}
rotation_status = lttng_session_add_rotation_schedule(TEST_SESSION_NAME, rotation_schedule);
if (rotation_status != LTTNG_ROTATION_STATUS_OK) {
fail("Failed to set size-based rotation schedule on session `%s`",
TEST_SESSION_NAME);
ret = -1;
goto end;
}
ret = 0;
end:
lttng_session_descriptor_destroy(session_desriptor);
lttng_rotation_schedule_destroy(rotation_schedule);
return ret;
}
int main(int argc, const char **argv)
{
int ret;
if (argc != 2) {
fail("Missing trace path");
goto end;
}
plan_tests(TEST_COUNT);
if (get_registered_triggers_count() != 0) {
fail("Session daemon already has registered triggers, bailing out");
goto end;
}
ret = setup_session_with_size_rotation_schedule(argv[1]);
if (ret) {
goto end;
}
ok(get_registered_triggers_count() == 0,
"No triggers visible while session has an enabled size-based rotation schedule");
ret = lttng_destroy_session(TEST_SESSION_NAME);
if (ret) {
fail("Failed to destroy session `%s`", TEST_SESSION_NAME);
goto end;
}
end:
return exit_status();
}
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