Sergei G
All in one solution demonstrating how to use nanopb Protocol Buffers library from within mbed environment. Test case is very simple. It works.
Original import was an all-in-one solution that only depends on mbed.
Current implementation extracted 2 librarires:
1) nanopb contains code required to use nanopb and Timestamp dependency. 2) protocol is a specific research protocol used by LCE at Itron at the moment of commit.
The application decodes Protocol Buffers message generated with GO application using the same 'protocol'. This test level application decodes message and validates that it matches expected.
It is simply a proof that nanopb library can be used.
Diff: source/protobuf/pb_common.h
- Revision:
- 0:fbdd0d307c19
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/source/protobuf/pb_common.h Wed Jul 12 22:40:29 2017 +0000
@@ -0,0 +1,42 @@
+/* pb_common.h: Common support functions for pb_encode.c and pb_decode.c.
+ * These functions are rarely needed by applications directly.
+ */
+
+#ifndef PB_COMMON_H_INCLUDED
+#define PB_COMMON_H_INCLUDED
+
+#include "pb.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Iterator for pb_field_t list */
+struct pb_field_iter_s {
+ const pb_field_t *start; /* Start of the pb_field_t array */
+ const pb_field_t *pos; /* Current position of the iterator */
+ unsigned required_field_index; /* Zero-based index that counts only the required fields */
+ void *dest_struct; /* Pointer to start of the structure */
+ void *pData; /* Pointer to current field value */
+ void *pSize; /* Pointer to count/has field */
+};
+typedef struct pb_field_iter_s pb_field_iter_t;
+
+/* Initialize the field iterator structure to beginning.
+ * Returns false if the message type is empty. */
+bool pb_field_iter_begin(pb_field_iter_t *iter, const pb_field_t *fields, void *dest_struct);
+
+/* Advance the iterator to the next field.
+ * Returns false when the iterator wraps back to the first field. */
+bool pb_field_iter_next(pb_field_iter_t *iter);
+
+/* Advance the iterator until it points at a field with the given tag.
+ * Returns false if no such field exists. */
+bool pb_field_iter_find(pb_field_iter_t *iter, uint32_t tag);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif
+