hub async provision/deprovision/hibernate/wake (#891)

- Improvement: Hub provision, deprovision, hibernate, and wake operations are now async. HTTP requests returns 202 Accepted while the operation completes in the background
- Improvement: Hub returns 202 Accepted (instead of 409 Conflict) when the same async operation is already in progress for a module
- Improvement: Hub returns 200 OK when a requested state transition is already satisfied

1 files changed, 7 insertions, 0 deletions

diff --git a/src/zencore/include/zencore/thread.h b/src/zencore/include/zencore/thread.h
index d7262324f..56ce5904b 100644
--- a/src/zencore/include/zencore/thread.h
+++ b/src/zencore/include/zencore/thread.h
@@ -190,6 +190,13 @@ class Latch
 public:
 	Latch(std::ptrdiff_t Count) : Counter(Count) {}
 
+	void Reset(std::ptrdiff_t Count)
+	{
+		ZEN_ASSERT(Counter.load() == 0);
+		Complete.Reset();
+		Counter.store(Count);
+	}
+
 	void CountDown()
 	{
 		std::ptrdiff_t Old = Counter.fetch_sub(1);