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#include "../kit/atomic.h"
#include "../kit/threads.h"
#define KIT_TEST_FILE atomic
#include "../kit/test.h"
TEST("atomic store and load") {
int _Atomic value;
atomic_store_explicit(&value, 20, memory_order_relaxed);
REQUIRE(atomic_load_explicit(&value, memory_order_relaxed) == 20);
}
TEST("atomic exchange") {
int _Atomic value;
atomic_store_explicit(&value, 20, memory_order_relaxed);
REQUIRE(atomic_exchange_explicit(&value, 42,
memory_order_relaxed) == 20);
REQUIRE(atomic_load_explicit(&value, memory_order_relaxed) == 42);
}
TEST("atomic fetch add") {
int _Atomic value;
atomic_store_explicit(&value, 20, memory_order_relaxed);
REQUIRE(atomic_fetch_add_explicit(&value, 22,
memory_order_relaxed) == 20);
REQUIRE(atomic_load_explicit(&value, memory_order_relaxed) == 42);
}
enum {
TEST_ATOMIC_THREAD_COUNT = 20,
TEST_ATOMIC_TICK_COUNT = 10000,
};
static int test_8_(void *p) {
ptrdiff_t i;
int8_t _Atomic *x = (int8_t _Atomic *) p;
for (i = 0; i < TEST_ATOMIC_TICK_COUNT; i++) {
atomic_fetch_add_explicit(x, 20, memory_order_relaxed);
thrd_yield();
atomic_fetch_add_explicit(x, 22, memory_order_relaxed);
thrd_yield();
atomic_fetch_add_explicit(x, -42, memory_order_relaxed);
thrd_yield();
}
return 0;
}
TEST("atomic types") {
int8_t _Atomic b_1;
int8_t _Atomic b_2;
int16_t _Atomic i16;
int32_t _Atomic i32;
int64_t _Atomic i64;
atomic_store_explicit(&b_1, 42, memory_order_relaxed);
atomic_store_explicit(&b_2, 43, memory_order_relaxed);
atomic_store_explicit(&i16, 4242, memory_order_relaxed);
atomic_store_explicit(&i32, 42424242, memory_order_relaxed);
atomic_store_explicit(&i64, 4242424242424242ll,
memory_order_relaxed);
atomic_fetch_add_explicit(&b_1, -20, memory_order_relaxed);
atomic_fetch_add_explicit(&b_2, -20, memory_order_relaxed);
atomic_fetch_add_explicit(&i16, -2020, memory_order_relaxed);
atomic_fetch_add_explicit(&i32, -20202020, memory_order_relaxed);
atomic_fetch_add_explicit(&i64, -2020202020202020ll,
memory_order_relaxed);
REQUIRE(atomic_exchange_explicit(&b_1, 0, memory_order_relaxed) ==
22);
REQUIRE(atomic_exchange_explicit(&b_2, 0, memory_order_relaxed) ==
23);
REQUIRE(atomic_exchange_explicit(&i16, 0, memory_order_relaxed) ==
2222);
REQUIRE(atomic_exchange_explicit(&i32, 0, memory_order_relaxed) ==
22222222);
REQUIRE(atomic_exchange_explicit(&i64, 0, memory_order_relaxed) ==
2222222222222222ll);
REQUIRE(atomic_load_explicit(&b_1, memory_order_relaxed) == 0);
REQUIRE(atomic_load_explicit(&b_2, memory_order_relaxed) == 0);
REQUIRE(atomic_load_explicit(&i16, memory_order_relaxed) == 0);
REQUIRE(atomic_load_explicit(&i32, memory_order_relaxed) == 0);
REQUIRE(atomic_load_explicit(&i64, memory_order_relaxed) == 0ll);
}
TEST("atomic byte concurrency") {
ptrdiff_t i;
int8_t _Atomic foo;
int8_t _Atomic bar;
atomic_store_explicit(&foo, 42, memory_order_relaxed);
atomic_store_explicit(&bar, 43, memory_order_relaxed);
thrd_t threads[TEST_ATOMIC_THREAD_COUNT];
for (i = 0; i < TEST_ATOMIC_THREAD_COUNT; i++)
REQUIRE_EQ(thrd_create(threads + i, test_8_,
(void *) ((i % 2) ? &foo : &bar)),
thrd_success);
for (i = 0; i < TEST_ATOMIC_THREAD_COUNT; i++) thrd_join(threads[i], NULL);
REQUIRE(atomic_load_explicit(&foo, memory_order_relaxed) == 42);
REQUIRE(atomic_load_explicit(&bar, memory_order_relaxed) == 43);
}
static int test_16_(void *p) {
ptrdiff_t i;
int16_t _Atomic *x = (int16_t _Atomic *) p;
for (i = 0; i < TEST_ATOMIC_TICK_COUNT; i++) {
atomic_fetch_add_explicit(x, 2020, memory_order_relaxed);
thrd_yield();
atomic_fetch_add_explicit(x, 2222, memory_order_relaxed);
thrd_yield();
atomic_fetch_add_explicit(x, -4242, memory_order_relaxed);
thrd_yield();
}
return 0;
}
TEST("atomic int16 concurrency") {
ptrdiff_t i;
int16_t _Atomic foo;
int16_t _Atomic bar;
atomic_store_explicit(&foo, 42, memory_order_relaxed);
atomic_store_explicit(&bar, 43, memory_order_relaxed);
thrd_t threads[TEST_ATOMIC_THREAD_COUNT];
for (i = 0; i < TEST_ATOMIC_THREAD_COUNT; i++)
REQUIRE_EQ(thrd_create(threads + i, test_16_,
(void *) ((i % 2) ? &foo : &bar)),
thrd_success);
for (i = 0; i < TEST_ATOMIC_THREAD_COUNT; i++) thrd_join(threads[i], NULL);
REQUIRE(atomic_load_explicit(&foo, memory_order_relaxed) == 42);
REQUIRE(atomic_load_explicit(&bar, memory_order_relaxed) == 43);
}
static int test_32_(void *p) {
ptrdiff_t i;
int32_t _Atomic *x = (int32_t _Atomic *) p;
for (i = 0; i < TEST_ATOMIC_TICK_COUNT; i++) {
atomic_fetch_add_explicit(x, 202020, memory_order_relaxed);
thrd_yield();
atomic_fetch_add_explicit(x, 222222, memory_order_relaxed);
thrd_yield();
atomic_fetch_add_explicit(x, -424242, memory_order_relaxed);
thrd_yield();
}
return 0;
}
TEST("atomic int32 concurrency") {
ptrdiff_t i;
int32_t _Atomic foo;
int32_t _Atomic bar;
atomic_store_explicit(&foo, 42, memory_order_relaxed);
atomic_store_explicit(&bar, 43, memory_order_relaxed);
thrd_t threads[TEST_ATOMIC_THREAD_COUNT];
for (i = 0; i < TEST_ATOMIC_THREAD_COUNT; i++)
REQUIRE_EQ(thrd_create(threads + i, test_32_,
(void *) ((i % 2) ? &foo : &bar)),
thrd_success);
for (i = 0; i < TEST_ATOMIC_THREAD_COUNT; i++) thrd_join(threads[i], NULL);
REQUIRE(atomic_load_explicit(&foo, memory_order_relaxed) == 42);
REQUIRE(atomic_load_explicit(&bar, memory_order_relaxed) == 43);
}
static int test_64_(void *p) {
ptrdiff_t i;
int64_t _Atomic *x = (int64_t _Atomic *) p;
for (i = 0; i < TEST_ATOMIC_TICK_COUNT; i++) {
atomic_fetch_add_explicit(x, 20202020202020ll,
memory_order_relaxed);
thrd_yield();
atomic_fetch_add_explicit(x, 22222222222222ll,
memory_order_relaxed);
thrd_yield();
atomic_fetch_add_explicit(x, -42424242424242ll,
memory_order_relaxed);
thrd_yield();
}
return 0;
}
TEST("atomic int64 concurrency") {
ptrdiff_t i;
int64_t _Atomic foo;
int64_t _Atomic bar;
atomic_store_explicit(&foo, 42, memory_order_relaxed);
atomic_store_explicit(&bar, 43, memory_order_relaxed);
thrd_t threads[TEST_ATOMIC_THREAD_COUNT];
for (i = 0; i < TEST_ATOMIC_THREAD_COUNT; i++)
REQUIRE_EQ(thrd_create(threads + i, test_64_,
(void *) ((i % 2) ? &foo : &bar)),
thrd_success);
for (i = 0; i < TEST_ATOMIC_THREAD_COUNT; i++) thrd_join(threads[i], NULL);
REQUIRE(atomic_load_explicit(&foo, memory_order_relaxed) == 42);
REQUIRE(atomic_load_explicit(&bar, memory_order_relaxed) == 43);
}
#undef KIT_TEST_FILE
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