Add pb_decode_noinit and use it from pb_dec_submessage.

[apps/agl-service-can-low-level.git] / pb_decode.h

diff --git a/pb_decode.h b/pb_decode.h
index 2880c07..483665e 100644 (file)
--- a/pb_decode.h
+++ b/pb_decode.h
@@ -33,6 +33,10 @@ struct _pb_istream_t
     bool (*callback)(pb_istream_t *stream, uint8_t *buf, size_t count);
     void *state; /* Free field for use by callback implementation */
     size_t bytes_left;
+    
+#ifndef PB_NO_ERRMSG
+    const char *errmsg;
+#endif
 };
 
 pb_istream_t pb_istream_from_buffer(uint8_t *buf, size_t bufsize);
@@ -44,6 +48,12 @@ bool pb_read(pb_istream_t *stream, uint8_t *buf, size_t count);
  */
 bool pb_decode(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
 
+/* Same as pb_decode, except does not initialize the destination structure
+ * to default values. This is slightly faster if you need no default values
+ * and just do memset(struct, 0, sizeof(struct)) yourself.
+ */
+bool pb_decode_noinit(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
+
 /* --- Helper functions ---
  * You may want to use these from your caller or callbacks.
  */