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-rw-r--r--pb.h24
1 files changed, 15 insertions, 9 deletions
diff --git a/pb.h b/pb.h
index 1d32ee9b..e6037b81 100644
--- a/pb.h
+++ b/pb.h
@@ -1,6 +1,11 @@
#ifndef _PB_H_
#define _PB_H_
+/* pb.h: Common parts for nanopb library.
+ * Most of these are quite low-level stuff. For the high-level interface,
+ * see pb_encode.h or pb_decode.h
+ */
+
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
@@ -12,15 +17,7 @@
#define pb_packed
#endif
-/* Wire types. Library user needs these only in encoder callbacks. */
-typedef enum {
- PB_WT_VARINT = 0,
- PB_WT_64BIT = 1,
- PB_WT_STRING = 2,
- PB_WT_32BIT = 5
-} pb_wire_type_t;
-
-/* List of possible field types
+/* List of possible field types. These are used in the autogenerated code.
* Least-significant 4 bits tell the scalar type
* Most-significant 4 bits specify repeated/required/packed etc.
*
@@ -143,10 +140,19 @@ struct _pb_callback_t {
void *arg;
};
+/* Wire types. Library user needs these only in encoder callbacks. */
+typedef enum {
+ PB_WT_VARINT = 0,
+ PB_WT_64BIT = 1,
+ PB_WT_STRING = 2,
+ PB_WT_32BIT = 5
+} pb_wire_type_t;
+
/* These macros are used to declare pb_field_t's in the constant array. */
#define pb_membersize(st, m) (sizeof ((st*)0)->m)
#define pb_arraysize(st, m) (pb_membersize(st, m) / pb_membersize(st, m[0]))
#define pb_delta(st, m1, m2) ((int)offsetof(st, m1) - (int)offsetof(st, m2))
+#define pb_delta_end(st, m1, m2) (offsetof(st, m1) - offsetof(st, m2) - pb_membersize(st, m2))
#define PB_LAST_FIELD {0,0,0,0}