rfnoc: Add action API

- Added action_info class
- Allow to send actions from node to node
- Allow to post actions into nodes
- Allow to set default forwarding policies
- Added unit tests

1 files changed, 21 insertions, 0 deletions

diff --git a/host/lib/rfnoc/actions.cpp b/host/lib/rfnoc/actions.cpp
new file mode 100644
index 000000000..1f5f0f2f7
--- /dev/null
+++ b/host/lib/rfnoc/actions.cpp
@@ -0,0 +1,21 @@
+//
+// Copyright 2019 Ettus Research, a National Instruments Brand
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+//
+
+#include <uhd/rfnoc/actions.hpp>
+#include <atomic>
+
+using namespace uhd::rfnoc;
+
+namespace {
+    // A static counter, which we use to uniquely label actions
+    std::atomic<size_t> action_counter{0};
+}
+
+action_info::action_info(const std::string& key_) : id(action_counter++), key(key_)
+{
+    // nop
+}
+