Add dynamic threads example

examples/dynamic_threads/src/main.rs

@@ -0,0 +1,28 @@
+extern crate bdwgc_allocator;
+
+use bdwgc_allocator::Allocator;
+use std::alloc::{GlobalAlloc, Layout};
+
+#[global_allocator]
+static GLOBAL_ALLOCATOR: Allocator = Allocator;
+
+fn main() {
+    unsafe { Allocator::initialize() }
+
+    loop {
+        let handle = std::thread::spawn(move || {
+            Allocator::register_current_thread().unwrap();
+
+            let mut _n =
+                unsafe { GLOBAL_ALLOCATOR.alloc(Layout::from_size_align(2 ^ 8, 8).unwrap()) };
+
+            for _ in 0..100 {
+                _n = unsafe { GLOBAL_ALLOCATOR.alloc(Layout::from_size_align(2 ^ 8, 8).unwrap()) }
+            }
+
+            Allocator::unregister_current_thread();
+        });
+
+        handle.join().unwrap();
+    }
+}