From 5781e9391fe3d7d3dabec620cb782d38f5f9cb9e Mon Sep 17 00:00:00 2001
From: Brian Cully <bjc@kublai.com>
Date: Fri, 10 May 2019 11:50:53 -0400
Subject: Update to 0.2.0: Add HandlerArray type.

  * Create HandlerArray as a safe wrapper around Handler.

  * Add Cargo features for HandlerArray size.

  * Move Handler into sub-module.

  * Add CriticalSection sub-module for architecture dependent support
    of interrupt-free contexts.

  * Add build rules to pull in cortex-m support for CriticalSection
    automatically.
---
 src/cs/cortex.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/cs/cortex.rs

(limited to 'src/cs/cortex.rs')

diff --git a/src/cs/cortex.rs b/src/cs/cortex.rs
new file mode 100644
index 0000000..cc97a12
--- /dev/null
+++ b/src/cs/cortex.rs
@@ -0,0 +1,20 @@
+use super::CriticalSection;
+
+use cortex_m::interrupt;
+
+pub struct Locker {}
+
+impl Locker {
+    pub const fn new() -> Self {
+        Self {}
+    }
+}
+
+impl CriticalSection for Locker {
+    fn with_lock<F, R>(&self, f: F) -> R
+    where
+        F: FnOnce() -> R,
+    {
+        interrupt::free(|_cs| f())
+    }
+}
-- 
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