From 6edbb046fa3df6fc6e32a74c6aee57f349866a55 Mon Sep 17 00:00:00 2001
From: Aaron Kaiser <a_kaiser@posteo.de>
Date: Thu, 18 Apr 2024 09:28:45 +0200
Subject: [PATCH] feat: add function to get fd of memfd

---
 src/bump_allocator.rs | 4 ++++
 src/lib.rs            | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/src/bump_allocator.rs b/src/bump_allocator.rs
index 1ccf13c..ef56ade 100644
--- a/src/bump_allocator.rs
+++ b/src/bump_allocator.rs
@@ -91,6 +91,10 @@ impl BumpAllocator {
 
         offset as usize
     }
+
+    pub(crate) fn get_fd(&self) -> i32 {
+        self.backing_fd
+    }
 }
 
 #[cfg(test)]
diff --git a/src/lib.rs b/src/lib.rs
index 35a9d3f..49c3de6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,14 @@
 #![feature(test)]
 #![feature(lazy_cell)]
 
+use bump_allocator::BUMP_ALLOCATOR;
+
 mod allocator;
 mod bump_allocator;
 pub mod sharedptr;
+
+pub fn get_shared_mem_fd() -> i32 {
+    let allocator = BUMP_ALLOCATOR.lock().unwrap();
+
+    allocator.get_fd()
+}