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test/threadstest.c: Add a test to load providers concurrently

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If we don't synchronize properly in the core provider code, and build
with a thread sanitizer, this should cause a crash.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14354)
This commit is contained in:
Richard Levitte 2021-03-01 16:31:34 +01:00
parent 8c631cfaa1
commit 2f17e978a0
1 changed files with 29 additions and 0 deletions
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29
test/threadstest.c
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@ -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;
}