TransferBufferManager: using TransferBufferManagerKey instead of plain Node ID, this allows to distinguish transfers of different type from the same Node ID, which is necessary for message broadcasting/unicasting

libuavcan/src/transport/transfer_buffer.cpp

@@ -4,10 +4,22 @@
 
 #include <cassert>
 #include <cstdlib>
+#include <cstdio>
+#include <string>
 #include <uavcan/internal/transport/transfer_buffer.hpp>
 
 namespace uavcan
 {
+/*
+ * TransferBufferManagerKey
+ */
+std::string TransferBufferManagerKey::toString() const
+{
+    char buf[24];
+    std::snprintf(buf, sizeof(buf), "nid:%i tt:%i", int(node_id_), int(transfer_type_));
+    return std::string(buf);
+}
+
 /*
  * DynamicTransferBuffer::Block
  */