ttrpc-rust

ttrpc-rust is a non-core subproject of containerd

ttrpc-rust is the Rust version of ttrpc. ttrpc is GRPC for low-memory environments.

The ttrpc compiler of ttrpc-rust ttrpc_rust_plugin is modified from gRPC compiler of gRPC-rs grpcio-compiler.

Usage

To generate the sources from proto files:

  1. Install protoc from github.com/protocolbuffers/protobuf

  2. Install protobuf-codegen from github.com/pingcap/grpc-rs cd grpc-rs cargo install --force protobuf-codegen

  3. Install ttrpcrustplugin from ttrpc-rust/compiler cd ttrpc-rust/compiler cargo install --force --path .

  4. Generate the sources:

$ protoc --rust_out=. --ttrpc_out=. --plugin=protoc-gen-ttrpc=`which ttrpc_rust_plugin` example.proto

Run Examples

  1. Go to the directory

    $ cd ttrpc-rust/example

  2. Start the server

    $ cargo run --example server unix:///tmp/1

  3. Start a client

    $ cargo run --example client /tmp/1

Notes: the version of protobuf

protobuf-codegen, ttrpcrustplugin and your code should use the same version protobuf. You will get following fail if use the different version protobuf. 27 | const _PROTOBUF_VERSION_CHECK: () = ::protobuf::VERSION_2_8_0; | ^^^^^^^^^^^^^ help: a constant with a similar name exists: `VERSION_2_10_1` The reason is that files generated by protobuf-codegen are compatible only with the same version of runtime

To fix this issue: 1. Rebuild protobuf-codegen with new protobuf: cd grpc-rs cargo clean cargo update cargo install --force protobuf-codegen 2. Rebuild ttrpcrustplugin with new protobuf: cd ttrpc-rust/compiler cargo clean cargo update cargo install --force --path . 3. Build your project.