From 06505aa49ce48d13ca839a57b6dec1afe6be2a01 Mon Sep 17 00:00:00 2001
From: Yota Toyama <raviqqe@gmail.com>
Date: Sun, 14 Apr 2019 06:17:54 +0000
Subject: [PATCH] Add dynamic threads example

---
 examples/dynamic_threads/Cargo.lock  | 23 +++++++++++++++++++++++
 examples/dynamic_threads/Cargo.toml  |  9 +++++++++
 examples/dynamic_threads/src/main.rs | 28 ++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+)
 create mode 100644 examples/dynamic_threads/Cargo.lock
 create mode 100644 examples/dynamic_threads/Cargo.toml
 create mode 100644 examples/dynamic_threads/src/main.rs

diff --git a/examples/dynamic_threads/Cargo.lock b/examples/dynamic_threads/Cargo.lock
new file mode 100644
index 0000000..1736337
--- /dev/null
+++ b/examples/dynamic_threads/Cargo.lock
@@ -0,0 +1,23 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "bdwgc-allocator"
+version = "0.1.0"
+dependencies = [
+ "libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "dynamic_threads"
+version = "0.1.0"
+dependencies = [
+ "bdwgc-allocator 0.1.0",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.51"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[metadata]
+"checksum libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)" = "bedcc7a809076656486ffe045abeeac163da1b558e963a31e29fbfbeba916917"
diff --git a/examples/dynamic_threads/Cargo.toml b/examples/dynamic_threads/Cargo.toml
new file mode 100644
index 0000000..90d5da0
--- /dev/null
+++ b/examples/dynamic_threads/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "dynamic_threads"
+version = "0.1.0"
+authors = ["Yota Toyama <raviqqe@gmail.com>"]
+edition = "2018"
+publish = false
+
+[dependencies]
+bdwgc-allocator = { path = "../.." }
diff --git a/examples/dynamic_threads/src/main.rs b/examples/dynamic_threads/src/main.rs
new file mode 100644
index 0000000..284eda9
--- /dev/null
+++ b/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();
+    }
+}