X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=pb_decode.h;h=98a64cc0baf9895767622a098a68bf4741f30830;hb=f47410ea4b8ae43e19facd378be4cf1073e1813b;hp=85efa212e0999eb2c346293b8ebbbbec7b59c78e;hpb=314460c2a518bdfc4e5dfb87992d907461a7c0e6;p=apps%2Fagl-service-can-low-level.git

diff --git a/pb_decode.h b/pb_decode.h
index 85efa212..98a64cc0 100644
--- a/pb_decode.h
+++ b/pb_decode.h
@@ -12,6 +12,39 @@
 extern "C" {
 #endif
 
+/* Structure for defining custom input streams. You will need to provide
+ * a callback function to read the bytes from your storage, which can be
+ * for example a file or a network socket.
+ * 
+ * The callback must conform to these rules:
+ *
+ * 1) Return false on IO errors. This will cause decoding to abort.
+ * 2) You can use state to store your own data (e.g. buffer pointer),
+ *    and rely on pb_read to verify that no-body reads past bytes_left.
+ * 3) Your callback may be used with substreams, in which case bytes_left
+ *    is different than from the main stream. Don't use bytes_left to compute
+ *    any pointers.
+ */
+struct _pb_istream_t
+{
+#ifdef PB_BUFFER_ONLY
+    /* Callback pointer is not used in buffer-only configuration.
+     * Having an int pointer here allows binary compatibility but
+     * gives an error if someone tries to assign callback function.
+     */
+    int *callback;
+#else
+    bool (*callback)(pb_istream_t *stream, uint8_t *buf, size_t count);
+#endif
+
+    void *state; /* Free field for use by callback implementation */
+    size_t bytes_left;
+    
+#ifndef PB_NO_ERRMSG
+    const char *errmsg;
+#endif
+};
+
 /***************************
  * Main decoding functions *
  ***************************/
@@ -43,6 +76,12 @@ bool pb_decode(pb_istream_t *stream, const pb_field_t fields[], void *dest_struc
  */
 bool pb_decode_noinit(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
 
+/* Same as pb_decode, except expects the stream to start with the message size
+ * encoded as varint. Corresponds to parseDelimitedFrom() in Google's
+ * protobuf API.
+ */
+bool pb_decode_delimited(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
+
 
 /**************************************
  * Functions for manipulating streams *
@@ -60,39 +99,6 @@ pb_istream_t pb_istream_from_buffer(uint8_t *buf, size_t bufsize);
  */
 bool pb_read(pb_istream_t *stream, uint8_t *buf, size_t count);
 
-/* Structure for defining custom input streams. You will need to provide
- * a callback function to read the bytes from your storage, which can be
- * for example a file or a network socket.
- * 
- * The callback must conform to these rules:
- *
- * 1) Return false on IO errors. This will cause decoding to abort.
- * 2) You can use state to store your own data (e.g. buffer pointer),
- *    and rely on pb_read to verify that no-body reads past bytes_left.
- * 3) Your callback may be used with substreams, in which case bytes_left
- *    is different than from the main stream. Don't use bytes_left to compute
- *    any pointers.
- */
-struct _pb_istream_t
-{
-#ifdef PB_BUFFER_ONLY
-    /* Callback pointer is not used in buffer-only configuration.
-     * Having an int pointer here allows binary compatibility but
-     * gives an error if someone tries to assign callback function.
-     */
-    int *callback;
-#else
-    bool (*callback)(pb_istream_t *stream, uint8_t *buf, size_t count);
-#endif
-
-    void *state; /* Free field for use by callback implementation */
-    size_t bytes_left;
-    
-#ifndef PB_NO_ERRMSG
-    const char *errmsg;
-#endif
-};
-
 
 /************************************************
  * Helper functions for writing field callbacks *