RFNoC: Add xport disconnect callbacks

Transports were not disconnecting their links from the I/O service upon
destruction, leaving behind inaccessible send and recv links used by
nothing.  This led to I/O errors after creating several transports.

Added callbacks to transports to automatically disconnect their links
from the I/O service when the transport is destroyed.  Updated all
callers to supply a disconnect callback.

Signed-off-by: michael-west <michael.west@ettus.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/host/lib/rfnoc/chdr_ctrl_xport.cpp b/host/lib/rfnoc/chdr_ctrl_xport.cpp
index 8946a3b08..f8b3cf03e 100644
--- a/host/lib/rfnoc/chdr_ctrl_xport.cpp
+++ b/host/lib/rfnoc/chdr_ctrl_xport.cpp
@@ -19,8 +19,9 @@ chdr_ctrl_xport::chdr_ctrl_xport(io_service::sptr io_srv,
     const chdr::chdr_packet_factory& pkt_factory,
     sep_id_t my_epid,
     size_t num_send_frames,
-    size_t num_recv_frames)
-    : _my_epid(my_epid), _recv_packet(pkt_factory.make_generic())
+    size_t num_recv_frames,
+    disconnect_callback_t disconnect)
+    : _my_epid(my_epid), _recv_packet(pkt_factory.make_generic()), _disconnect(disconnect)
 {
     /* Make dumb send pipe */
     send_io_if::send_callback_t send_cb = [this](
@@ -99,6 +100,9 @@ chdr_ctrl_xport::~chdr_ctrl_xport()
     _send_if.reset();
     _ctrl_recv_if.reset();
     _mgmt_recv_if.reset();
+
+    // Disconnect the transport
+    _disconnect();
 }
 
 /*!