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https://github.com/zoujiaqing/msgtrans-rust

MsgTrans for rust, support multiple protocol create server and client, protocol support TCP / QUIC / WEBSOCKET.
https://github.com/zoujiaqing/msgtrans-rust

network quic quic-client quic-server socket tcp tcp-client tcp-server websocket websocket-client websocket-server

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MsgTrans for rust, support multiple protocol create server and client, protocol support TCP / QUIC / WEBSOCKET.

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# MsgTrans for rust

## Server sample code

Using MsgTrans to create multiple protocol server.

```rust
let mut server = MessageTransportServer::new();

// Add TCP channel
server.add_channel(TcpServerChannel::new("0.0.0.0", 9001)).await;

// Add WebSocket channel
server.add_channel(WebSocketServerChannel::new("0.0.0.0", 9002, "/ws")).await;

// Add QUIC channel
server.add_channel(QuicServerChannel::new(
"0.0.0.0",
9003,
"certs/cert.pem",
"certs/key.pem",
)).await;

// set some callback handler for server

server.start().await;
```

## Run example for server

```bash
cargo run --example server
```

## Run example for client

```bash
# for tcp
cargo run --example client_tcp
# for websocket
cargo run --example client_websocket
# for quic
cargo run --example client_quic
```

## Generate cert and key for test

```bash
openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365000 -nodes -subj "/CN=localhost"
```

## Packet Structure

```text
+--------------------------------+
| Packet Header |
| +--------------------------+ |
| | Message ID (4 bytes) | |
| +--------------------------+ |
| | Message Length (4 bytes)| |
| +--------------------------+ |
| | Compression Type (1 byte)| |
| +--------------------------+ |
| | Extend Length (4 bytes) | |
| +--------------------------+ |
| | Reserved (3 bytes) | |
| +--------------------------+ |
+--------------------------------+
|
v
+--------------------------------+
| Extended Header Content |
| (variable length, Extend |
| Length specifies size) |
+--------------------------------+
|
v
+--------------------------------+
| Payload Content |
| (variable length, Message |
| Length specifies size) |
+--------------------------------+
```

Structure Explanation:

1. Header Content: Contains fixed-length header information, including Message ID, Message Length, Compression Type, and Extend Length.
2. Extended Header Content: Variable-length extended header content, with its size specified by the Extend Length field.
3. Payload Content: Variable-length payload content, with its size specified by the Message Length field.