[lng-odp] [API-NEXT PATCH] test: random: adding thread based test for random

[Christophe Milard]

checking the thread safety of odp_random.

Signed-off-by: Christophe Milard <christophe.mil...@linaro.org>
---
 test/common_plat/validation/api/random/random.c | 46 +++++++++++++++++++++++++
 test/common_plat/validation/api/random/random.h |  1 +
 2 files changed, 47 insertions(+)

diff --git a/test/common_plat/validation/api/random/random.c 
b/test/common_plat/validation/api/random/random.c
index a0e2ef7..17234db 100644
--- a/test/common_plat/validation/api/random/random.c
+++ b/test/common_plat/validation/api/random/random.c
@@ -8,6 +8,8 @@
 #include <odp_cunit_common.h>
 #include "random.h"
 
+#define STRESS_TEST_SZ 100000
+
 void random_test_get_size(void)
 {
        int32_t ret;
@@ -61,10 +63,54 @@ void random_test_repeat(void)
        CU_ASSERT(memcmp(buf1, buf2, sizeof(buf1)) == 0);
 }
 
+/*
+ * thread part for the random_test_stress
+ */
+static int run_test_stress(void *arg ODP_UNUSED)
+{
+       int32_t i;
+       int32_t rc;
+       uint8_t buf[4096];
+
+       odp_random_kind_t max_kind = odp_random_max_kind();
+
+       /* generate plenty of random data of different length and different
+        * quality (using the 2 first bytes of the previous iteration buffer as
+        * length and quality)
+        */
+       for (i = 0; i < STRESS_TEST_SZ; i++) {
+               rc = odp_random_data(buf, buf[0] + 2, buf[1] % (max_kind + 1));
+               CU_ASSERT(rc > 0);
+       }
+
+       fflush(stdout);
+       return CU_get_number_of_failures();
+}
+
+/*
+ * stress tests
+ */
+void random_test_stress(void)
+{
+       pthrd_arg thrdarg;
+       odp_cpumask_t unused;
+
+       thrdarg.numthrds = odp_cpumask_default_worker(&unused, 0);
+       if (thrdarg.numthrds > MAX_WORKERS)
+               thrdarg.numthrds = MAX_WORKERS;
+
+       /* create threads */
+       odp_cunit_thread_create(run_test_stress, &thrdarg);
+
+       /* wait for all thread endings: */
+       CU_ASSERT(odp_cunit_thread_exit(&thrdarg) >= 0);
+}
+
 odp_testinfo_t random_suite[] = {
        ODP_TEST_INFO(random_test_get_size),
        ODP_TEST_INFO(random_test_kind),
        ODP_TEST_INFO(random_test_repeat),
+       ODP_TEST_INFO(random_test_stress),
        ODP_TEST_INFO_NULL,
 };
 
diff --git a/test/common_plat/validation/api/random/random.h 
b/test/common_plat/validation/api/random/random.h
index c4bca78..f9538aa 100644
--- a/test/common_plat/validation/api/random/random.h
+++ b/test/common_plat/validation/api/random/random.h
@@ -13,6 +13,7 @@
 void random_test_get_size(void);
 void random_test_kind(void);
 void random_test_repeat(void);
+void random_test_stress(void);
 
 /* test arrays: */
 extern odp_testinfo_t random_suite[];
-- 
2.7.4