From 01f08d3fa5ae0cd8a2fc3c6e1112117a1f7f9768 Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Mon, 3 Jun 2019 23:28:19 -0700
Subject: rfnoc: Add check_topology() API to nodes

This API lets blocks decide if their current topology is OK for them,
and make decisions based on their topology.
---
 host/lib/rfnoc/node.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'host/lib/rfnoc/node.cpp')

diff --git a/host/lib/rfnoc/node.cpp b/host/lib/rfnoc/node.cpp
index 33649b23f..7eff22eab 100644
--- a/host/lib/rfnoc/node.cpp
+++ b/host/lib/rfnoc/node.cpp
@@ -154,6 +154,23 @@ void node_t::post_action(
     _post_action_cb(edge_info, action);
 }
 
+bool node_t::check_topology(const std::vector<size_t>& connected_inputs,
+    const std::vector<size_t>& connected_outputs)
+{
+    for (size_t port : connected_inputs) {
+        if (port >= get_num_input_ports()) {
+            return false;
+        }
+    }
+    for (size_t port : connected_outputs) {
+        if (port >= get_num_output_ports()) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
 /*** Private methods *********************************************************/
 property_base_t* node_t::_find_property(
     res_source_info src_info, const std::string& id) const
-- 
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