Migrate to threading_helpers.h

Signed-off-by: Paul Elliott <paul.elliott@arm.com>

tests/include/test/threading_helpers.h

@@ -0,0 +1,45 @@
+/**
+ * \file threading_helpers.h
+ *
+ * \brief This file contains the prototypes of helper functions for the purpose
+ *        of testing threading.
+ */
+
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#ifndef THREADING_HELPERS_H
+#define THREADING_HELPERS_H
+
+#if defined MBEDTLS_THREADING_C
+
+#if defined(MBEDTLS_THREADING_PTHREAD) && defined(MBEDTLS_TEST_HOOKS)
+#define MBEDTLS_TEST_MUTEX_USAGE
+#endif
+
+#if defined(MBEDTLS_TEST_MUTEX_USAGE)
+/**
+ *  Activate the mutex usage verification framework. See threading_helpers.c for
+ *  information.
+ */
+void mbedtls_test_mutex_usage_init(void);
+
+/**
+ *  Deactivate the mutex usage verification framework. See threading_helpers.c
+ *  for information.
+ */
+void mbedtls_test_mutex_usage_end(void);
+
+/**
+ *  Call this function after executing a test case to check for mutex usage
+ * errors.
+ */
+void mbedtls_test_mutex_usage_check(void);
+#endif /* MBEDTLS_TEST_MUTEX_USAGE */
+
+#endif /* MBEDTLS_THREADING_C */
+
+#endif /* THREADING_HELPERS_H */
+