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[1/2] helper: strong types support

Message ID 1448976452-10786-2-git-send-email-maxim.uvarov@linaro.org
State Accepted
Commit 28a6ef9c0b4b4cce3e72fc27dbe3040683215b80
Headers show

Commit Message

Maxim Uvarov Dec. 1, 2015, 1:27 p.m. UTC 
Add strong types support for helpers the same as we have for
linux-generic. That should be useful for complex algorithms
where type check is needed.

Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
---
 helper/Makefile.am                       |  1 +
 helper/include/odp/helper/strong_types.h | 35 ++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 helper/include/odp/helper/strong_types.h
diff mbox

Patch

diff --git a/helper/Makefile.am b/helper/Makefile.am
index bed8683..1906ae2 100644
--- a/helper/Makefile.am
+++ b/helper/Makefile.am
@@ -15,6 +15,7 @@  helperinclude_HEADERS = \
 		  $(srcdir)/include/odp/helper/icmp.h\
 		  $(srcdir)/include/odp/helper/ip.h\
 		  $(srcdir)/include/odp/helper/ipsec.h\
+		  $(srcdir)/include/odp/helper/strong_types.h\
 		  $(srcdir)/include/odp/helper/tcp.h\
 		  $(srcdir)/include/odp/helper/table.h\
 		  $(srcdir)/include/odp/helper/udp.h
diff --git a/helper/include/odp/helper/strong_types.h b/helper/include/odp/helper/strong_types.h
new file mode 100644
index 0000000..777e24d
--- /dev/null
+++ b/helper/include/odp/helper/strong_types.h
@@ -0,0 +1,35 @@ 
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+/**
+ * @file
+ *
+ * ODP Strong Types. Common macros for implementing strong typing
+ * for ODP abstract data types
+ */
+
+#ifndef ODPH_STRONG_TYPES_H_
+#define ODPH_STRONG_TYPES_H_
+
+/** Use strong typing for ODP types */
+#ifdef __cplusplus
+#define ODPH_HANDLE_T(type) struct _##type { uint8_t unused_dummy_var; } *type
+#else
+#define odph_handle_t struct { uint8_t unused_dummy_var; } *
+/** C/C++ helper macro for strong typing */
+#define ODPH_HANDLE_T(type) odph_handle_t type
+#endif
+
+/** Internal macro to get value of an ODP handle */
+#define _odph_typeval(handle) ((uint32_t)(uintptr_t)(handle))
+
+/** Internal macro to get printable value of an ODP handle */
+#define _odph_pri(handle) ((uint64_t)_odph_typeval(handle))
+
+/** Internal macro to convert a scalar to a typed handle */
+#define _odph_cast_scalar(type, val) ((type)(uintptr_t)(val))
+
+#endif