Add LOW_LATENCY_LAYER_SLEEP_AFTER_PRESENT env as an explicit AL1 toggle

1 files changed, 11 insertions, 4 deletions

diff --git a/src/context.hh b/src/context.hh
index 5972740..91fbf91 100644
--- a/src/context.hh
+++ b/src/context.hh
@@ -1,13 +1,20 @@
 #ifndef CONTEXT_HH_
 #define CONTEXT_HH_
 
-// The purpose of this class is to provide a base class for Context classes.
-
 namespace low_latency {
 
+// A context class doesn't do much by itself. We just use it to provide a
+// virtual destructor so we can store a bunch of shared_ptrs in the same
+// container and rely on RTTI in the layer context. It also deletes the copy and
+// move constructors for derived classes implicitly, and that's pretty much it.
+//
+// We _could_ do something weird and complicated where we define virtual pure
+// hashing and equality functions so we can store them in an unordered_set, but
+// it's just unnecessary complexity and doesn't allow us to perform 'do you exist'
+// lookups without creating an object.
 class Context {
-    
-public:
+
+  public:
     Context();
     Context(const Context& context) = delete;
     Context(Context&& context) = delete;