VOM reshuffle

split the VOM into two halves; a top/front-end and a bottom/backend.
Only the backend includes the auto-generated VAPI.
This serves two purposes:
1 - improves ompile times for VOM, since the VAPI is included
    only in the backend.
2 - does not expose VAPI to users of VOM

Change-Id: I17b93aeaef10c0eba8612016d9034aca5628d9f7
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
diff --git a/src/vpp-api/vom/hw.cpp b/src/vpp-api/vom/hw.cpp
index 5688552..fee0e86 100644
--- a/src/vpp-api/vom/hw.cpp
+++ b/src/vpp-api/vom/hw.cpp
@@ -14,10 +14,9 @@
  */
 
 #include "vom/hw.hpp"
+#include "vom/hw_cmds.hpp"
 #include "vom/logger.hpp"
 
-#include <vapi/vpe.api.vapi.hpp>
-
 namespace VOM {
 HW::cmd_q::cmd_q()
   : m_enabled(true)
@@ -270,12 +269,13 @@
 bool
 HW::poll()
 {
-  std::shared_ptr<cmd> poll(new Poll(m_poll_state));
+  std::shared_ptr<cmd> poll(new hw_cmds::poll(m_poll_state));
 
   HW::enqueue(poll);
   HW::write();
 
   return (m_poll_state);
+  return (true);
 }
 
 template <>
@@ -299,33 +299,6 @@
      << "rc:" << item_rc.to_string() << " data:" << item_data << "]";
   return (os.str());
 }
-
-HW::Poll::Poll(HW::item<bool>& item)
-  : rpc_cmd(item)
-{
-}
-
-rc_t
-HW::Poll::issue(connection& con)
-{
-  msg_t req(con.ctx(), std::ref(*this));
-
-  VAPI_CALL(req.execute());
-
-  m_hw_item.set(wait());
-
-  return (rc_t::OK);
-}
-
-std::string
-HW::Poll::to_string() const
-{
-  std::ostringstream s;
-
-  s << "poll: " << m_hw_item.to_string();
-
-  return (s.str());
-}
 }
 
 /*