Separation Generator to a dedicated repo

Change-Id: Id94831651c3266861435272a6e36c7884bef2c45
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 0 insertions, 127 deletions

diff --git a/CAN-binder/libs/nanopb/docs/index.rst b/CAN-binder/libs/nanopb/docs/index.rst
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-=============================================
-Nanopb: Protocol Buffers with small code size
-=============================================
-
-.. include :: menu.rst
-
-Nanopb is an ANSI-C library for encoding and decoding messages in Google's `Protocol Buffers`__ format with minimal requirements for RAM and code space.
-It is primarily suitable for 32-bit microcontrollers.
-
-__ https://developers.google.com/protocol-buffers/docs/reference/overview
-
-Overall structure
-=================
-
-For the runtime program, you always need *pb.h* for type declarations.
-Depending on whether you want to encode, decode, or both, you also need *pb_encode.h/c* or *pb_decode.h/c*.
-
-The high-level encoding and decoding functions take an array of *pb_field_t* structures, which describes the fields of a message structure. Usually you want these autogenerated from a *.proto* file. The tool script *nanopb_generator.py* accomplishes this.
-
-.. image:: generator_flow.png
-
-So a typical project might include these files:
-
-1) Nanopb runtime library:
-    - pb.h
-    - pb_common.h and pb_common.c (always needed)
-    - pb_decode.h and pb_decode.c (needed for decoding messages)
-    - pb_encode.h and pb_encode.c (needed for encoding messages)
-2) Protocol description (you can have many):
-    - person.proto (just an example)
-    - person.pb.c (autogenerated, contains initializers for const arrays)
-    - person.pb.h (autogenerated, contains type declarations)
-
-Features and limitations
-========================
-
-**Features**
-
-#) Pure C runtime
-#) Small code size (2–10 kB depending on processor, plus any message definitions)
-#) Small ram usage (typically ~300 bytes, plus any message structs)
-#) Allows specifying maximum size for strings and arrays, so that they can be allocated statically.
-#) No malloc needed: everything can be allocated statically or on the stack. Optional malloc support available.
-#) You can use either encoder or decoder alone to cut the code size in half.
-#) Support for most protobuf features, including: all data types, nested submessages, default values, repeated and optional fields, oneofs, packed arrays, extension fields.
-#) Callback mechanism for handling messages larger than can fit in available RAM.
-#) Extensive set of tests.
-
-**Limitations**
-
-#) Some speed has been sacrificed for code size.
-#) Encoding is focused on writing to streams. For memory buffers only it could be made more efficient.
-#) The deprecated Protocol Buffers feature called "groups" is not supported.
-#) Fields in the generated structs are ordered by the tag number, instead of the natural ordering in .proto file.
-#) Unknown fields are not preserved when decoding and re-encoding a message.
-#) Reflection (runtime introspection) is not supported. E.g. you can't request a field by giving its name in a string.
-#) Numeric arrays are always encoded as packed, even if not marked as packed in .proto.
-#) Cyclic references between messages are supported only in callback and malloc mode.
-
-Getting started
-===============
-
-For starters, consider this simple message::
-
- message Example {
-    required int32 value = 1;
- }
-
-Save this in *message.proto* and compile it::
-
-    user@host:~$ protoc -omessage.pb message.proto
-    user@host:~$ python nanopb/generator/nanopb_generator.py message.pb
-
-You should now have in *message.pb.h*::
-
- typedef struct {
-    int32_t value;
- } Example;
- 
- extern const pb_field_t Example_fields[2];
-
-Now in your main program do this to encode a message::
-
- Example mymessage = {42};
- uint8_t buffer[10];
- pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
- pb_encode(&stream, Example_fields, &mymessage);
-
-After that, buffer will contain the encoded message.
-The number of bytes in the message is stored in *stream.bytes_written*.
-You can feed the message to *protoc --decode=Example message.proto* to verify its validity.
-
-For a complete example of the simple case, see *example/simple.c*.
-For a more complex example with network interface, see the *example/network_server* subdirectory.
-
-Compiler requirements
-=====================
-Nanopb should compile with most ansi-C compatible compilers. It however
-requires a few header files to be available:
-
-#) *string.h*, with these functions: *strlen*, *memcpy*, *memset*
-#) *stdint.h*, for definitions of *int32_t* etc.
-#) *stddef.h*, for definition of *size_t*
-#) *stdbool.h*, for definition of *bool*
-
-If these header files do not come with your compiler, you can use the
-file *extra/pb_syshdr.h* instead. It contains an example of how to provide
-the dependencies. You may have to edit it a bit to suit your custom platform.
-
-To use the pb_syshdr.h, define *PB_SYSTEM_HEADER* as *"pb_syshdr.h"* (including the quotes).
-Similarly, you can provide a custom include file, which should provide all the dependencies
-listed above.
-
-Running the test cases
-======================
-Extensive unittests and test cases are included under the *tests* folder.
-
-To build the tests, you will need the `scons`__ build system. The tests should
-be runnable on most platforms. Windows and Linux builds are regularly tested.
-
-__ http://www.scons.org/
-
-In addition to the build system, you will also need a working Google Protocol
-Buffers *protoc* compiler, and the Python bindings for Protocol Buffers. On
-Debian-based systems, install the following packages: *protobuf-compiler*,
-*python-protobuf* and *libprotobuf-dev*.
-