添加初始提交

1. 编译已经通过
2. 添加好了rpc客户端的基本实现
3. 添加好了fuser的架子，内容等待实现

src/client.rs

@@ -0,0 +1,19 @@
+use lws_client::LwsVfsIns;
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let mut lws_ins = match LwsVfsIns::new("config.json").await{
+        Ok(ins) => ins,
+        Err(e) => {
+            println!("Error creating lws server instance: {:?}", e);
+            return Err(e);
+        }
+    };
+    match lws_ins.hello().await{
+        Err(e) => {
+            println!("lws client instance hello err {:?}", e);
+            return Err(e);
+        },
+        _ =>{},
+    }
+    LwsVfsIns::mount(lws_ins)
+}

src/lib.rs

@@ -0,0 +1,109 @@
+use lws_client::HelloRequest;
+use std::{io::Read as _};
+use std::fs::File;
+use std::error::Error;
+use std::collections::HashMap;
+use serde_json::{self, Value};
+use lws_client::lws_vfs_client::LwsVfsClient;
+use std::os::raw::c_int;
+
+use fuser::{
+    KernelConfig, FileAttr, FileType, Filesystem, MountOption, ReplyAttr, ReplyData, ReplyDirectory, ReplyEntry,
+    Request,
+};
+
+pub mod lws_client {
+    tonic::include_proto!("lws_vfs"); //导入lws vfs proto buffer
+}
+
+#[derive(Debug, Default)]
+pub struct Config {
+    port: u16,
+    addr: String,
+    mount_map: HashMap<String, String>,
+}
+impl Config {
+    pub fn new(json: &str) -> Result<Config, Box<dyn Error>> {
+        let mut file = File::open(json)?;
+        let mut buffer = String::new();
+        file.read_to_string(&mut buffer)?;
+        let json: Value = serde_json::from_str(buffer.as_ref())?;
+        let port: u16 = match json.get("port") {
+            Some(port) => port.as_u64().expect("expect port is a number but its not") as u16,
+            None => 5001,
+        };
+        let addr: String = match json.get("addr") {
+            Some(addr) => addr.as_str().expect("expect addr is a String but its not").to_string(),
+            None => "localhost".to_string(),
+        };
+        let mounts = match json.get("mount") {
+            Some(mounts) => mounts.as_object().unwrap(),
+            None => {
+                return Err(Box::new(std::io::Error::new(
+                    std::io::ErrorKind::Other,
+                    "no mount map",
+                )))
+            }
+        };
+        let mount_map = mounts
+            .iter()
+            .map(|(key, value)| {
+                (
+                    key.as_str().to_string(),
+                    value.as_str().unwrap().to_string(),
+                )
+            })
+            .collect();
+        Ok(Config { port, addr, mount_map })
+    }
+
+    pub fn get_port(&self) -> u16 {
+        self.port
+    }
+
+    pub fn get_addr(&self) -> &String {
+        &self.addr
+    }
+}
+
+pub struct LwsVfsIns {
+    pub config: Config,
+    rpc: LwsVfsClient<tonic::transport::Channel>
+}
+
+impl Filesystem for LwsVfsIns {
+    fn init(&mut self, _req: &Request, #[allow(unused_variables)] config: &mut KernelConfig,
+    ) -> Result<(), c_int> {
+
+        Ok(())
+    }
+}
+
+impl LwsVfsIns {
+    pub async fn new(json: &str) -> Result<LwsVfsIns, Box<dyn Error>> {
+        let config = Config::new(json)?;
+        let addr = format!("http://{}:{}",  config.get_addr(), config.get_port());
+        //connect to server
+        let rpc = LwsVfsClient::connect(addr).await?;
+        Ok(LwsVfsIns {
+            config,
+            rpc,
+        })
+    }
+    pub async fn hello(&mut self) -> Result<(), Box<dyn Error>> {
+        let request = tonic::Request::new(HelloRequest {
+            name: "Ekko lws hello".into(),
+        });
+        let response = &self.rpc.say_hello(request).await?;
+    
+        println!("RESPONSE={:?}", response);
+        Ok(())
+    }
+    pub fn mount<FS:Filesystem>(file_system:FS) -> Result<(), Box<dyn Error>> {
+        let mountpoint = "/mnt";
+        let options = vec![MountOption::RO, MountOption::FSName("lws_fs".to_string())];
+        fuser::mount2(file_system, mountpoint, &options).unwrap();
+        Ok(())
+    }
+}
+

src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}