Move yunq to new thread spawn and remove old one.

rust/lib/mammoth/src/thread.rs

@@ -5,44 +5,6 @@ use crate::zion;
 use alloc::boxed::Box;
 use core::ffi::c_void;
 
-pub type ThreadEntry = fn(*const c_void) -> ();
-
-#[no_mangle]
-extern "C" fn internal_entry_point(thread_ptr: *const Thread, arg1: *const c_void) -> ! {
-    let thread: &Thread = unsafe { thread_ptr.as_ref().expect("Failed to unwrap thread ref") };
-
-    (thread.entry)(arg1);
-
-    syscall::thread_exit()
-}
-// TODO: Add a Drop implementation that kills this thread and drops its capability.
-pub struct Thread {
-    cap: Capability,
-    // This field only exists to ensure that the entry reference will outlive the thread object
-    // itself.
-    entry: ThreadEntry,
-}
-
-impl Thread {
-    pub fn spawn(entry: ThreadEntry, arg1: *const c_void) -> Result<Box<Self>, zion::ZError> {
-        let proc_cap = Capability::take_copy(unsafe { crate::init::SELF_PROC_CAP })?;
-        let cap = syscall::thread_create(&proc_cap)?;
-        let thread = Box::new(Self { cap, entry });
-        syscall::thread_start(
-            &thread.cap,
-            internal_entry_point as u64,
-            thread.as_ref() as *const Thread as u64,
-            arg1 as u64,
-        )?;
-
-        Ok(thread)
-    }
-
-    pub fn join(&self) -> Result<(), zion::ZError> {
-        syscall::thread_wait(&self.cap)
-    }
-}
-
 pub struct JoinHandle {
     cap: Capability,
 }

rust/lib/yunq/src/server.rs

@@ -2,6 +2,8 @@ use crate::buffer::ByteBuffer;
 use alloc::vec::Vec;
 use mammoth::cap::Capability;
 use mammoth::syscall;
+use mammoth::thread;
+use mammoth::thread::JoinHandle;
 use mammoth::zion::z_cap_t;
 use mammoth::zion::ZError;
 
@@ -50,3 +52,10 @@ pub trait YunqServer {
         cap_buffer: &mut Vec<z_cap_t>,
     ) -> Result<usize, ZError>;
 }
+
+pub fn spawn_server_thread<T>(mut server: T) -> JoinHandle
+where
+    T: YunqServer + Send + 'static,
+{
+    thread::spawn(move || server.server_loop())
+}

rust/sys/denali/src/ahci/controller.rs

@@ -1,10 +1,8 @@
-use alloc::boxed::Box;
 use alloc::sync::Arc;
-use core::ffi::c_void;
 use mammoth::sync::Mutex;
 use mammoth::thread;
 
-use mammoth::{mem::MemoryRegion, thread::Thread, zion::ZError};
+use mammoth::{mem::MemoryRegion, zion::ZError};
 
 use crate::ahci::command::FisType;
 use crate::ahci::port::{

rust/sys/yellowstone/src/main.rs

@@ -3,16 +3,16 @@
 
 extern crate alloc;
 
-use alloc::{string::ToString, vec::Vec};
+use alloc::{string::ToString, sync::Arc, vec::Vec};
 use mammoth::{
     cap::Capability,
     define_entry, elf,
     init::{BOOT_FRAMEBUFFER_INFO_VMMO, BOOT_PCI_VMMO},
     mem::MemoryRegion,
-    zion::{z_cap_t, z_err_t, ZError},
+    zion::{kZionPerm_All, z_cap_t, z_err_t, ZError},
 };
 use yellowstone_yunq::YellowstoneServer;
-use yunq::server::YunqServer;
+use yunq::server::{spawn_server_thread, YunqServer};
 
 mod gpt;
 mod pci;
@@ -40,20 +40,19 @@ extern "C" fn main() -> z_err_t {
         .expect("Failed to create PCI region");
     let fb_region = MemoryRegion::from_cap(Capability::take(unsafe { BOOT_FRAMEBUFFER_INFO_VMMO }))
         .expect("Failed to create Framebuffer region");
-    let context = alloc::rc::Rc::new(
+    let context = Arc::new(
         server::YellowstoneServerContext::new(pci_region, fb_region)
             .expect("Failed to create yellowstone context"),
     );
     let handler = server::YellowstoneServerImpl::new(context.clone());
     let server = YellowstoneServer::new(handler).expect("Couldn't create yellowstone server");
 
-    let server_thread = server.run_server().expect("Failed to run server");
+    let client_cap = server.create_client_cap().unwrap();
+    let server_thread = spawn_server_thread(server);
 
     spawn_from_vmmo(
         unsafe { mammoth::init::BOOT_DENALI_VMMO },
-        server
-            .create_client_cap()
-            .expect("Failed to create client cap for denali"),
+        client_cap.duplicate(kZionPerm_All).unwrap(),
     )
     .expect("Failed to spawn denali");
 
@@ -62,7 +61,7 @@ extern "C" fn main() -> z_err_t {
 
     spawn_from_vmmo(
         unsafe { mammoth::init::BOOT_VICTORIA_FALLS_VMMO },
-        server.create_client_cap().unwrap(),
+        client_cap.duplicate(kZionPerm_All).unwrap(),
     )
     .expect("Failed to spawn victoriafalls");
 
@@ -87,7 +86,11 @@ extern "C" fn main() -> z_err_t {
         let path = "/bin/".to_string() + bin_name;
 
         let bin_file = victoriafalls::file::File::open(&path).unwrap();
-        spawn_from_mem_region(bin_file.memory(), server.create_client_cap().unwrap()).unwrap();
+        spawn_from_mem_region(
+            bin_file.memory(),
+            client_cap.duplicate(kZionPerm_All).unwrap(),
+        )
+        .unwrap();
     }
 
     server_thread.join().expect("Failed to join thread");

rust/sys/yellowstone/src/server.rs

@@ -1,7 +1,9 @@
 use core::cell::RefCell;
 
 use alloc::rc::Rc;
+use alloc::sync::Arc;
 use alloc::{collections::BTreeMap, string::String};
+use mammoth::sync::Mutex;
 use mammoth::{cap::Capability, mem::MemoryRegion, zion::ZError};
 use victoriafalls::VFSClient;
 use yellowstone_yunq::{
@@ -15,7 +17,7 @@ pub struct YellowstoneServerContext {
     registration_semaphore: mammoth::sync::Semaphore,
     pci_reader: PciReader,
     framebuffer_info_region: MemoryRegion,
-    service_map: RefCell<BTreeMap<String, Capability>>,
+    service_map: Mutex<BTreeMap<String, Capability>>,
 }
 
 impl YellowstoneServerContext {
@@ -52,13 +54,13 @@ impl YellowstoneServerContext {
             registration_semaphore: mammoth::sync::Semaphore::new()?,
             pci_reader: PciReader::new(pci_region),
             framebuffer_info_region: fb_region,
-            service_map: BTreeMap::new().into(),
+            service_map: Mutex::new(BTreeMap::new()),
         })
     }
 
     pub fn wait(&self, service: &str) -> Result<(), ZError> {
         loop {
-            match self.service_map.borrow().get(service) {
+            match self.service_map.lock().get(service) {
                 Some(_) => return Ok(()),
                 None => {}
             }
@@ -68,11 +70,11 @@ impl YellowstoneServerContext {
 }
 
 pub struct YellowstoneServerImpl {
-    context: Rc<YellowstoneServerContext>,
+    context: Arc<YellowstoneServerContext>,
 }
 
 impl YellowstoneServerImpl {
-    pub fn new(context: Rc<YellowstoneServerContext>) -> Self {
+    pub fn new(context: Arc<YellowstoneServerContext>) -> Self {
         Self { context }
     }
 }
@@ -87,7 +89,7 @@ impl YellowstoneServerHandler for YellowstoneServerImpl {
 
         self.context
             .service_map
-            .borrow_mut()
+            .lock()
             .insert(req.endpoint_name, Capability::take(req.endpoint_capability));
 
         self.context.registration_semaphore.signal()?;
@@ -95,7 +97,7 @@ impl YellowstoneServerHandler for YellowstoneServerImpl {
     }
 
     fn get_endpoint(&mut self, req: GetEndpointRequest) -> Result<Endpoint, ZError> {
-        match self.context.service_map.borrow().get(&req.endpoint_name) {
+        match self.context.service_map.lock().get(&req.endpoint_name) {
             Some(cap) => Ok(Endpoint {
                 endpoint: cap.duplicate(Capability::PERMS_ALL)?.release(),
             }),
@@ -122,7 +124,7 @@ impl YellowstoneServerHandler for YellowstoneServerImpl {
     }
 
     fn get_denali(&mut self) -> Result<DenaliInfo, ZError> {
-        match self.context.service_map.borrow().get("denali") {
+        match self.context.service_map.lock().get("denali") {
             Some(ep_cap) => crate::gpt::read_gpt(denali::DenaliClient::new(
                 ep_cap.duplicate(Capability::PERMS_ALL).unwrap(),
             ))

rust/usr/testbed/src/main.rs

@@ -37,12 +37,6 @@ pub extern "C" fn main() -> z_err_t {
     let b = Box::new(1);
     debug!("Addrs: {:p} {:p}", a, b);
 
-    let e: thread::ThreadEntry = |_| {
-        debug!("Testing 1 2 3");
-    };
-    let t = thread::Thread::spawn(e, core::ptr::null()).expect("Failed to spawn thread");
-    t.join().expect("Failed to wait.");
-
     let x = Box::new(|| 1);
     debug!("Addr: {:p}", x);
     debug!("Addr: {:p}", &x);

yunq/rust/src/codegen.rs

@@ -369,17 +369,6 @@ fn generate_server(interface: &Interface) -> TokenStream {
                     handler,
                 })
             }
-
-            pub fn run_server(&self) -> Result<Box<thread::Thread>, ZError> {
-                let thread_entry = |server_ptr: *const c_void| {
-                    let server = unsafe { (server_ptr as *mut #server_name<T>).as_mut().expect("Failed to convert to server") };
-                    server.server_loop();
-                };
-                thread::Thread::spawn(
-                    thread_entry,
-                    self as *const Self as *const core::ffi::c_void,
-                )
-            }
         }
 
         impl<T: #server_trait> yunq::server::YunqServer for #server_name<T> {