chore: Release bdwgc-alloc version 0.6.4

Bumps [vendor/bdwgc](https://github.com/ivmai/bdwgc) from `2bcec83` to `db76b2f`.
- [Release notes](https://github.com/ivmai/bdwgc/releases)
- [Commits](2bcec83b6e...db76b2f831)

---
updated-dependencies:
- dependency-name: vendor/bdwgc
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/test.yaml

@@ -1,6 +1,9 @@
 name: test
 on:
-  - push
+  push:
+    branches:
+      - main
+  pull_request:
 jobs:
   test:
     runs-on: ubuntu-latest

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "bdwgc-alloc"
 description = "impl GlobalAlloc for bdwgc"
-version = "0.6.2"
+version = "0.6.4"
 authors = [
   "swgillespie <sean.william.g@gmail.com>",
   "Yota Toyama <raviqqe@gmail.com>",

README.md

@@ -1,6 +1,6 @@
 # bdwgc-alloc
 
-[![GitHub Action](https://img.shields.io/github/workflow/status/raviqqe/bdwgc-alloc/test?style=flat-square)](https://github.com/raviqqe/bdwgc-alloc/actions)
+[![GitHub Action](https://img.shields.io/github/actions/workflow/status/raviqqe/bdwgc-alloc/test.yaml?branch=main&style=flat-square)](https://github.com/raviqqe/bdwgc-alloc/actions)
 [![Crate](https://img.shields.io/crates/v/bdwgc-alloc.svg?style=flat-square)](https://crates.io/crates/bdwgc-alloc)
 [![License](https://img.shields.io/github/license/raviqqe/bdwgc-alloc.svg?style=flat-square)](LICENSE)
 

src/lib.rs

@@ -26,6 +26,14 @@ extern "C" {
     fn GC_register_my_thread(stack_base: *const GcStackBase) -> c_int;
     fn GC_set_stackbottom(thread: *const c_void, stack_bottom: *const GcStackBase);
     fn GC_unregister_my_thread();
+    fn GC_gcollect();
+    fn GC_register_finalizer(
+        obj: *const c_void,
+        f: extern "C" fn(*mut c_void, *mut c_void),
+        client_data: *const c_void,
+        opt_old_f: *const c_void,
+        opt_old_cd: *const c_void,
+    ) -> *mut c_void;
 }
 
 pub struct Allocator;
@@ -70,6 +78,18 @@ impl Allocator {
     pub unsafe fn unregister_current_thread() {
         GC_unregister_my_thread()
     }
+
+    pub fn force_collect() {
+        unsafe { GC_gcollect() }
+    }
+
+    pub unsafe fn register_finalizer(
+        obj: *const c_void,
+        f: extern "C" fn(*mut c_void, *mut c_void),
+        client_data: *const c_void,
+    ) {
+        GC_register_finalizer(obj, f, client_data, std::ptr::null(), std::ptr::null());
+    }
 }
 
 unsafe impl GlobalAlloc for Allocator {