From 1c4ee49a89025bc67d5b5c7ea3718a09e656097e Mon Sep 17 00:00:00 2001
From: Sebastien Boeuf <sebastien.boeuf@intel.com>
Date: Wed, 2 Feb 2022 09:35:55 +0100
Subject: [PATCH] Implement AsRawFd for VringEpollHandler

In order to let the consumer of the crate access directly the file
descriptor related to the VringEpollHandler, we implement the AsRawFd
trait.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
---
 coverage_config_x86_64.json | 2 +-
 src/event_loop.rs           | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/coverage_config_x86_64.json b/coverage_config_x86_64.json
index 38e6dec..374cba7 100644
--- a/coverage_config_x86_64.json
+++ b/coverage_config_x86_64.json
@@ -1,5 +1,5 @@
 {
-  "coverage_score": 85.0,
+  "coverage_score": 85.1,
   "exclude_path": "",
   "crate_features": ""
 }
diff --git a/src/event_loop.rs b/src/event_loop.rs
index e4d7147..9083e13 100644
--- a/src/event_loop.rs
+++ b/src/event_loop.rs
@@ -226,6 +226,12 @@ where
     }
 }
 
+impl<S, V, B> AsRawFd for VringEpollHandler<S, V, B> {
+    fn as_raw_fd(&self) -> RawFd {
+        self.epoll.as_raw_fd()
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::super::backend::tests::MockVhostBackend;
@@ -269,5 +275,7 @@ mod tests {
         handler
             .unregister_listener(eventfd.as_raw_fd(), EventSet::IN, 1)
             .unwrap_err();
+        // Check we retrieve the correct file descriptor
+        assert_eq!(handler.as_raw_fd(), handler.epoll.as_raw_fd());
     }
 }