.. contents ::
-Nanopb-0.3.0 (2014-09-xx)
+Nanopb-0.3.8 (2017-xx-xx)
+=========================
+Fully drain substreams before closing
+
+**Rationale:** If the substream functions were called directly and the caller
+did not completely empty the substring before closing it, the parent stream
+would be put into an incorrect state.
+
+**Changes:** *pb_close_string_substream* can now error and returns a boolean.
+
+**Required actions:** Add error checking onto any call to
+*pb_close_string_substream*.
+
+Nanopb-0.3.5 (2016-02-13)
+=========================
+
+Add support for platforms without uint8_t
+-----------------------------------------
+**Rationale:** Some platforms cannot access 8-bit sized values directly, and
+do not define *uint8_t*. Nanopb previously didn't support these platforms.
+
+**Changes:** References to *uint8_t* were replaced with several alternatives,
+one of them being a new *pb_byte_t* typedef. This in turn uses *uint_least8_t*
+which means the smallest available type.
+
+**Required actions:** If your platform does not have a standards-compliant
+*stdint.h*, it may lack the definition for *[u]int_least8_t*. This must be
+added manually, example can be found in *extra/pb_syshdr.h*.
+
+**Error indications:** Compiler error: "unknown type name 'uint_least8_t'".
+
+Nanopb-0.3.2 (2015-01-24)
+=========================
+
+Add support for OneOfs
+----------------------
+**Rationale:** Previously nanopb did not support the *oneof* construct in
+*.proto* files. Those fields were generated as regular *optional* fields.
+
+**Changes:** OneOfs are now generated as C unions. Callback fields are not
+supported inside oneof and generator gives an error.
+
+**Required actions:** The generator option *no_unions* can be used to restore old
+behaviour and to allow callbacks to be used. To use unions, one change is
+needed: use *which_xxxx* field to detect which field is present, instead
+of *has_xxxx*. Compare the value against *MyStruct_myfield_tag*.
+
+**Error indications:** Generator error: "Callback fields inside of oneof are
+not supported". Compiler error: "Message" has no member named "has_xxxx".
+
+Nanopb-0.3.0 (2014-08-26)
=========================
Separate field iterator logic to pb_common.c
**Error indications:** Linker error: undefined reference to
*pb_field_iter_begin*, *pb_field_iter_next* or similar.
+Change data type of field counts to pb_size_t
+---------------------------------------------
+**Rationale:** Often nanopb is used with small arrays, such as 255 items or
+less. Using a full *size_t* field to store the array count wastes memory if
+there are many arrays. There already exists parameters *PB_FIELD_16BIT* and
+*PB_FIELD_32BIT* which tell nanopb what is the maximum size of arrays in use.
+
+**Changes:** Generator will now use *pb_size_t* for the array *_count* fields.
+The size of the type will be controlled by the *PB_FIELD_16BIT* and
+*PB_FIELD_32BIT* compilation time options.
+
+**Required actions:** Regenerate all *.pb.h* files. In some cases casts to the
+*pb_size_t* type may need to be added in the user code when accessing the
+*_count* fields.
+
+**Error indications:** Incorrect data at runtime, crashes. But note that other
+changes in the same version already require regenerating the files and have
+better indications of errors, so this is only an issue for development
+versions.
+
+Renamed some macros and identifiers
+-----------------------------------
+**Rationale:** Some names in nanopb core were badly chosen and conflicted with
+ISO C99 reserved names or lacked a prefix. While they haven't caused trouble
+so far, it is reasonable to switch to non-conflicting names as these are rarely
+used from user code.
+
+**Changes:** The following identifier names have changed:
+
+ * Macros:
+
+ * STATIC_ASSERT(x) -> PB_STATIC_ASSERT(x)
+ * UNUSED(x) -> PB_UNUSED(x)
+
+ * Include guards:
+
+ * _PB_filename_ -> PB_filename_INCLUDED
+
+ * Structure forward declaration tags:
+
+ * _pb_field_t -> pb_field_s
+ * _pb_bytes_array_t -> pb_bytes_array_s
+ * _pb_callback_t -> pb_callback_s
+ * _pb_extension_type_t -> pb_extension_type_s
+ * _pb_extension_t -> pb_extension_s
+ * _pb_istream_t -> pb_istream_s
+ * _pb_ostream_t -> pb_ostream_s
+
+**Required actions:** Regenerate all *.pb.c* files. If you use any of the above
+identifiers in your application code, perform search-replace to the new name.
+
+**Error indications:** Compiler errors on lines with the macro/type names.
+
Nanopb-0.2.9 (2014-08-09)
=========================
as *void\**. This allowed passing of any data, but made it unnecessarily
complex to return a pointer from callback.
-**Changes:** The callback function parameter was changed to *void\**.
+**Changes:** The callback function parameter was changed to *void\*\**.
**Required actions:** You can continue using the old callback style by
defining *PB_OLD_CALLBACK_STYLE*. Recommended action is to:
- * Change the callback signatures to contain *void\** for decoders and
+ * Change the callback signatures to contain *void\*\** for decoders and
*void \* const \** for encoders.
* Change the callback function body to use *\*arg* instead of *arg*.
Code Review / apps / agl-service-can-low-level.git / blobdiff