From cf7852bb94c33a0eeaa595522e39961d84f45ea2 Mon Sep 17 00:00:00 2001
From: pjht <pterpstra@pterpstra.com>
Date: Mon, 23 Sep 2024 15:41:50 -0500
Subject: [PATCH] Log register_fs, mount, and unmount

---
 Cargo.lock  | 17 +++++++++++++++++
 Cargo.toml  |  1 +
 src/main.rs | 12 ++++++++++++
 3 files changed, 30 insertions(+)

diff --git a/Cargo.lock b/Cargo.lock
index a81666e..7896abc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -236,6 +236,22 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syslog_rpc"
+version = "0.1.0"
+dependencies = [
+ "parking_lot",
+ "postcard",
+ "syslog_structs",
+]
+
+[[package]]
+name = "syslog_structs"
+version = "0.1.0"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.12"
@@ -248,6 +264,7 @@ version = "0.1.0"
 dependencies = [
  "fs_rpc",
  "parking_lot",
+ "syslog_rpc",
  "vfs_rpc",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index fa90694..a212faa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ edition = "2021"
 [dependencies]
 fs_rpc = { version = "0.1.0", path = "../fs_rpc" }
 parking_lot = "0.12.3"
+syslog_rpc = { version = "0.1.0", path = "../syslog/syslog_rpc" }
 vfs_rpc = { version = "0.1.0", path = "vfs_rpc" }
 
 [workspace]
diff --git a/src/main.rs b/src/main.rs
index e4063e4..ee35cb8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,10 +11,12 @@ struct Serv {
     fs_map: RwLock<HashMap<String, u64>>,
     mount_list: RwLock<HashMap<PathBuf, (u64, u64)>>,
     process_stdio: RwLock<HashMap<u64, [Option<(u64, u64)>; 3]>>,
+    syslog_client: syslog_rpc::Client
 }
 
 impl vfs_rpc::Server for Serv {
     fn register_fs(&self, from: u64, kind: &str) -> Result<(), ()> {
+        self.syslog_client.send_text_message("vfs", format!("PID {} registered FS type {}", from, kind)).unwrap();
         self.fs_map.write().insert(kind.to_string(), from);
         Ok(())
     }
@@ -31,6 +33,7 @@ impl vfs_rpc::Server for Serv {
         self.mount_list
             .write()
             .insert(path.to_owned(), (fs_pid, mount_id));
+        self.syslog_client.send_text_message("vfs", format!("Mounted {} on {} type {}", dev.display(), path.display(), kind)).unwrap();
         Ok(())
     }
 
@@ -59,6 +62,7 @@ impl vfs_rpc::Server for Serv {
         if self.mount_list.write().remove(path).is_none() {
             Err(())
         } else {
+            self.syslog_client.send_text_message("vfs", format!("Unmounted {}", path.display())).unwrap();
             Ok(())
         }
     }
@@ -75,12 +79,20 @@ impl vfs_rpc::Server for Serv {
 }
 
 fn main() {
+    let syslog_pid = loop {
+        if let Some(pid) = syscalls::try_get_registered(2) {
+            break pid;
+        }
+    };
+    let syslog_client = syslog_rpc::Client::new(syslog_pid);
     vfs_rpc::register_server(Box::new(Serv {
         fs_map: RwLock::new(HashMap::new()),
         mount_list: RwLock::new(HashMap::new()),
         process_stdio: RwLock::new(HashMap::new()),
+        syslog_client,
     }));
     syscalls::register(0);
+    syslog_client.send_text_message("vfs", "VFS initialized").unwrap();
     loop {
         ipc::process_messages()
     }