---
testsuites/smptests/smpatomic08/init.c | 109 ++++++++++++++++++++++-
testsuites/smptests/smpatomic08/smpatomic08.scn | 8 ++
2 files changed, 116 insertions(+), 1 deletion(-)
diff --git a/testsuites/smptests/smpatomic08/init.c
b/testsuites/smptests/smpatomic08/init.c
index 19c81e6..92b93cc 100644
--- a/testsuites/smptests/smpatomic08/init.c
+++ b/testsuites/smptests/smpatomic08/init.c
@@ -78,6 +78,8 @@ typedef struct {
size_t worker_count;
rtems_id stop_worker_timer_id;
Atomic_Uint global_uint;
+ Atomic_Uint global_swap;
+ uint_fast32_t global_swap_t;
uint_fast32_t per_worker_uint[CPU_COUNT];
uint32_t flag_counter;
Atomic_Flag global_flag;
@@ -207,9 +209,114 @@ static void test_atomic_flag_fini(test_context *ctx)
rtems_test_assert(expected_counter == actual_counter);
}
+static void test_atomic_sub_init(test_context *ctx)
+{
+ _Atomic_Init_uint(&ctx->global_uint, 0xffffffff);
+}
+
+static void test_atomic_sub_body(test_context *ctx, size_t worker_index)
+{
+ uint_fast32_t counter = 0xffffffff;
+
+ while (!stop(ctx)) {
+ --counter;
+ _Atomic_Fetch_sub_uint(&ctx->global_uint, 1, ATOMIC_ORDER_RELAXED);
+ }
+
+ ctx->per_worker_uint[worker_index] = 0xffffffff - counter;
+}
+
+static void test_atomic_sub_fini(test_context *ctx)
+{
+ uint_fast32_t expected_counter = 0;
+ uint_fast32_t actual_counter;
+ size_t worker_index;
+
+ printf("=== atomic sub test case ==\n");
+
+ for (worker_index = 0; worker_index < ctx->worker_count; ++worker_index) {
+ uint_fast32_t worker_counter = ctx->per_worker_uint[worker_index];
+
+ expected_counter += worker_counter;
+
+ printf(
+ "atomic sub worker %zu counter: %" PRIuFAST32 "\n",
+ worker_index,
+ worker_counter
+ );
+ }
+
+ actual_counter = _Atomic_Load_uint(&ctx->global_uint, ATOMIC_ORDER_RELAXED);
+ actual_counter = 0xffffffff - actual_counter;
+
+ printf(
+ "global counter: expected = %" PRIuFAST32 ", actual = %" PRIuFAST32 "\n",
+ expected_counter,
+ actual_counter
+ );
+
+ rtems_test_assert(expected_counter == actual_counter);
+}
+
+static void test_atomic_compare_exchange_init(test_context *ctx)
+{
+ _Atomic_Init_uint(&ctx->global_swap, 0);
+ ctx->global_swap_t = 0;
+}
+
+static void test_atomic_compare_exchange_body(test_context *ctx, size_t
worker_index)
+{
+ uint_fast32_t counter = 0;
+
+ while (!stop(ctx)) {
+ while (_Atomic_Compare_exchange_uint(&ctx->global_swap,
&ctx->global_swap_t,
+ worker_index, ATOMIC_ORDER_ACQUIRE, ATOMIC_ORDER_RELEASE)) {
+ /* Wait */
+ }
+ ++counter;
+ ++ctx->flag_counter;
+ ctx->global_swap_t = worker_index;
+ }
+
+ ctx->per_worker_uint[worker_index] = counter;
+}
+
+static void test_atomic_compare_exchange_fini(test_context *ctx)
+{
+ uint_fast32_t expected_counter = 0;
+ uint_fast32_t actual_counter;
+ size_t worker_index;
+
+ printf("=== atomic compare_exchange test case ==\n");
+
+ for (worker_index = 0; worker_index < ctx->worker_count; ++worker_index) {
+ uint_fast32_t worker_counter = ctx->per_worker_uint[worker_index];
+
+ expected_counter += worker_counter;
+
+ printf(
+ "atomic compare_exchange worker %zu counter: %" PRIuFAST32 "\n",
+ worker_index,
+ worker_counter
+ );
+ }
+
+ actual_counter = _Atomic_Load_uint(&ctx->global_uint, ATOMIC_ORDER_RELAXED);
+
+ printf(
+ "global counter: expected = %" PRIuFAST32 ", actual = %" PRIuFAST32 "\n",
+ expected_counter,
+ actual_counter
+ );
+
+ rtems_test_assert(expected_counter == actual_counter);
+}
static const test_case test_cases[] = {
{ test_atomic_add_init, test_atomic_add_body, test_atomic_add_fini },
- { test_atomic_flag_init, test_atomic_flag_body, test_atomic_flag_fini }
+ { test_atomic_flag_init, test_atomic_flag_body, test_atomic_flag_fini },
+ { test_atomic_sub_init, test_atomic_sub_body, test_atomic_sub_fini },
+ { test_atomic_compare_exchange_init, test_atomic_compare_exchange_body,
+ test_atomic_compare_exchange_fini },
};
#define TEST_COUNT RTEMS_ARRAY_SIZE(test_cases)
diff --git a/testsuites/smptests/smpatomic08/smpatomic08.scn
b/testsuites/smptests/smpatomic08/smpatomic08.scn
index 70aeef1..0402978 100644
--- a/testsuites/smptests/smpatomic08/smpatomic08.scn
+++ b/testsuites/smptests/smpatomic08/smpatomic08.scn
@@ -7,4 +7,12 @@ global counter: expected = 54907, actual = 54907
atomic flag worker 0 counter: 7388
atomic flag worker 1 counter: 17280
global flag counter: expected = 24668, actual = 24668
+=== atomic sub test case ==
+atomic sub worker 0 counter: 18583
+atomic sub worker 1 counter: 36324
+global counter: expected = 54907, actual = 54907
+=== atomic compare_exchange test case ==
+atomic compare_exchange worker 0 counter: 5340
+atomic compare_exchange worker 1 counter: 10034
+global counter: expected = 15374, actual = 15374
*** END OF TEST SMPATOMIC 8 ***
--
1.7.9.5
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