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/*
* Copyright 2022 Yonggang Luo
* SPDX-License-Identifier: MIT
*
* Testing u_call_once.h
*/
#include <stdio.h>
#include <stdlib.h>
#include <gtest/gtest.h>
#include "c11/threads.h"
#include "util/u_atomic.h"
#include "util/u_call_once.h"
#define NUM_DEBUG_TEST_THREAD 8
static void update_x(int *x) {
p_atomic_inc(x);
}
static int xC;
static void update_x_global(void)
{
update_x(&xC);
}
static int test_call_once(void *_state)
{
static int xA = 0;
{
static once_flag once = ONCE_FLAG_INIT;
for (int i = 0; i < 100; i += 1) {
util_call_once_data_slow(&once, (util_call_once_data_func)update_x, &xA);
}
}
static int xB = 0;
{
static util_once_flag once = UTIL_ONCE_FLAG_INIT;
for (int i = 0; i < 100; i += 1) {
util_call_once_data(&once, (util_call_once_data_func)update_x, &xB);
}
}
{
static util_once_flag once = UTIL_ONCE_FLAG_INIT;
for (int i = 0; i < 100; i += 1) {
util_call_once(&once, update_x_global);
}
}
EXPECT_EQ(xA, 1);
EXPECT_EQ(xB, 1);
EXPECT_EQ(xC, 1);
return 0;
}
TEST(UtilCallOnce, Multithread)
{
thrd_t threads[NUM_DEBUG_TEST_THREAD];
for (unsigned i = 0; i < NUM_DEBUG_TEST_THREAD; i++) {
thrd_create(&threads[i], test_call_once, NULL);
}
for (unsigned i = 0; i < NUM_DEBUG_TEST_THREAD; i++) {
int ret;
thrd_join(threads[i], &ret);
}
}
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