test/threadstest.c: Add a test to load providers concurrently
If we don't synchronize properly in the core provider code, and build
with a thread sanitizer, this should cause a crash.
@@ -473,6 +473,34 @@ static int test_multi(int idx)
return testresult;
}
+/*
+ * This test attempts to load several providers at the same time, and if
+ * run with a thread sanitizer, should crash if the core provider code
+ * doesn't synchronize well enough.
+ */
+#define MULTI_LOAD_THREADS 3
+static void test_multi_load_worker(void)
+{
+ OSSL_PROVIDER *prov;
+
+ TEST_ptr(prov = OSSL_PROVIDER_load(NULL, "default"));
+ TEST_true(OSSL_PROVIDER_unload(prov));
+}
+
+static int test_multi_load(void)
+{
+ thread_t threads[MULTI_LOAD_THREADS];
+ int i;
+
+ for (i = 0; i < MULTI_LOAD_THREADS; i++)
+ TEST_true(run_thread(&threads[i], test_multi_load_worker));
+
+ for (i = 0; i < MULTI_LOAD_THREADS; i++)
+ TEST_true(wait_for_thread(threads[i]));
+
+ return 1;
+}
+
typedef enum OPTION_choice {
OPT_ERR = -1,
OPT_EOF = 0,
@@ -518,6 +546,7 @@ int setup_tests(void)
ADD_TEST(test_once);
ADD_TEST(test_thread_local);
ADD_TEST(test_atomic);
+ ADD_TEST(test_multi_load);
ADD_ALL_TESTS(test_multi, 4);
return 1;
}
