Replace disable/enable functions with lock/unlock

examples/coroutines/src/main.rs

@@ -10,12 +10,12 @@ static GLOBAL_ALLOCATOR: Allocator = Allocator;
 
 fn main() {
     unsafe { Allocator::initialize() }
-    Allocator::disable_gc();
+    Allocator::lock();
 
     let handle = Coroutine::spawn(move |_, _| {
         let bottom: u8 = 0;
         unsafe { Allocator::set_stack_bottom(&bottom) }
-        Allocator::enable_gc();
+        Allocator::unlock();
 
         loop {
             unsafe { std::alloc::alloc(Layout::from_size_align(2 ^ 8, 8).unwrap()) };

examples/suspended_coroutines/src/main.rs

@@ -11,22 +11,22 @@ static GLOBAL_ALLOCATOR: Allocator = Allocator;
 fn main() {
     unsafe { Allocator::initialize() }
 
-    Allocator::disable_gc();
+    Allocator::lock();
     let mut handle = Coroutine::spawn(move |me, _| {
         let bottom: u8 = 0;
         unsafe { Allocator::set_stack_bottom(&bottom) }
-        Allocator::enable_gc();
+        Allocator::unlock();
 
         me.yield_with(42);
         unsafe { Allocator::set_stack_bottom(&bottom) }
-        Allocator::enable_gc();
+        Allocator::unlock();
 
         loop {
             unsafe { std::alloc::alloc(Layout::from_size_align(2 ^ 8, 8).unwrap()) };
         }
     });
 
-    Allocator::disable_gc();
+    Allocator::lock();
     assert_eq!(handle.resume(0).unwrap(), 42);
 
     handle.resume(0).unwrap();

src/lib.rs

@@ -20,8 +20,8 @@ extern "C" {
         callback: unsafe extern "C" fn(*const c_void) -> *const c_void,
         client_data: *const c_void,
     ) -> *const c_void;
-    fn GC_disable() -> c_void;
-    fn GC_enable() -> c_void;
+    fn GC_alloc_lock() -> c_void;
+    fn GC_alloc_unlock() -> c_void;
     fn GC_free(ptr: *mut c_void);
     fn GC_get_stack_base(stack_base: *mut GcStackBase) -> c_int;
     fn GC_init() -> c_void;
@@ -34,12 +34,12 @@ extern "C" {
 pub struct Allocator;
 
 impl Allocator {
-    pub fn disable_gc() {
-        unsafe { GC_disable() };
+    pub fn lock() {
+        unsafe { GC_alloc_lock() };
     }
 
-    pub fn enable_gc() {
-        unsafe { GC_enable() };
+    pub fn unlock() {
+        unsafe { GC_alloc_unlock() };
     }
 
     pub unsafe fn initialize() {