usb: set event loop thread name

Set the name of the thread created to run the Xhci controller event loop
so that it can be identified more easily in a debugger.

BUG=None
TEST=Attach to running crosvm with gdb and verify 'info threads' name

Change-Id: Id73a580b35231ec7fa7aec5bd51027d32e483bff
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1594192
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>

2 files changed, 3 insertions, 2 deletions

diff --git a/devices/src/usb/xhci/ring_buffer_controller.rs b/devices/src/usb/xhci/ring_buffer_controller.rs
index 5084fab..201441a 100644
--- a/devices/src/usb/xhci/ring_buffer_controller.rs
+++ b/devices/src/usb/xhci/ring_buffer_controller.rs
@@ -320,7 +320,7 @@ mod tests {
     fn test_ring_buffer_controller() {
         let (tx, rx) = channel();
         let mem = setup_mem();
-        let (l, j) = EventLoop::start(None).unwrap();
+        let (l, j) = EventLoop::start("test".to_string(), None).unwrap();
         let l = Arc::new(l);
         let controller = RingBufferController::new_with_handler(
             "".to_string(),
diff --git a/devices/src/usb/xhci/xhci.rs b/devices/src/usb/xhci/xhci.rs
index df57e68..55dd50e 100644
--- a/devices/src/usb/xhci/xhci.rs
+++ b/devices/src/usb/xhci/xhci.rs
@@ -83,7 +83,8 @@ impl Xhci {
         regs: XhciRegs,
     ) -> Result<Arc<Self>> {
         let (event_loop, _join_handle) =
-            EventLoop::start(Some(fail_handle.clone())).map_err(Error::StartEventLoop)?;
+            EventLoop::start("xhci".to_string(), Some(fail_handle.clone()))
+                .map_err(Error::StartEventLoop)?;
         let interrupter = Arc::new(Mutex::new(Interrupter::new(mem.clone(), irq_evt, &regs)));
         let event_loop = Arc::new(event_loop);
         let intr_resample_handler =