prop_tree: Multiple API enhancements to uhd::property

- Added desired and coerced values and accessors to property
- Added support to register desired subscribers
- set APIs don't reallocate storage for a property value
- Renamed callback method registration APIs
- Registering 2 coercers or publishers for a property will throw
- Registering a coercer and a publisher for the same property will throw

1 files changed, 2 insertions, 2 deletions

diff --git a/host/lib/usrp/dboard/db_wbx_simple.cpp b/host/lib/usrp/dboard/db_wbx_simple.cpp
index dda2def95..7a132f864 100644
--- a/host/lib/usrp/dboard/db_wbx_simple.cpp
+++ b/host/lib/usrp/dboard/db_wbx_simple.cpp
@@ -88,7 +88,7 @@ wbx_simple::wbx_simple(ctor_args_t args) : wbx_base(args){
         std::string(str(boost::format("%s+GDB") % this->get_rx_subtree()->access<std::string>("name").get()
     )));
     this->get_rx_subtree()->create<std::string>("antenna/value")
-        .subscribe(boost::bind(&wbx_simple::set_rx_ant, this, _1))
+        .add_coerced_subscriber(boost::bind(&wbx_simple::set_rx_ant, this, _1))
         .set("RX2");
     this->get_rx_subtree()->create<std::vector<std::string> >("antenna/options")
         .set(wbx_rx_antennas);
@@ -100,7 +100,7 @@ wbx_simple::wbx_simple(ctor_args_t args) : wbx_base(args){
         std::string(str(boost::format("%s+GDB") % this->get_tx_subtree()->access<std::string>("name").get()
     )));
     this->get_tx_subtree()->create<std::string>("antenna/value")
-        .subscribe(boost::bind(&wbx_simple::set_tx_ant, this, _1))
+        .add_coerced_subscriber(boost::bind(&wbx_simple::set_tx_ant, this, _1))
         .set(wbx_tx_antennas.at(0));
     this->get_tx_subtree()->create<std::vector<std::string> >("antenna/options")
         .set(wbx_tx_antennas);