Merge pull request #311 from elmato/push-transaction-sync

Implement network_broadcast_api::broadcast_transaction_synchronous

Author: vikramrajkumar

libraries/app/api.cpp

@@ -39,6 +39,7 @@
 
 #include <fc/crypto/hex.hpp>
 #include <fc/smart_ref_impl.hpp>
+#include <fc/thread/future.hpp>
 
 namespace graphene { namespace app {
 
@@ -159,6 +160,16 @@ namespace graphene { namespace app {
        _app.p2p_node()->broadcast_transaction(trx);
     }
 
+    fc::variant network_broadcast_api::broadcast_transaction_synchronous(const signed_transaction& trx)
+    {
+       fc::promise<fc::variant>::ptr prom( new fc::promise<fc::variant>() );
+       broadcast_transaction_with_callback( [=]( const fc::variant& v ){
+        prom->set_value(v);
+       }, trx );
+
+       return fc::future<fc::variant>(prom).wait();
+    }
+
     void network_broadcast_api::broadcast_block( const signed_block& b )
     {
        _app.chain_database()->push_block(b);

libraries/app/include/graphene/app/api.hpp

@@ -195,6 +195,12 @@ namespace graphene { namespace app {
           */
          void broadcast_transaction_with_callback( confirmation_callback cb, const signed_transaction& trx);
 
+         /** this version of broadcast transaction registers a callback method that will be called when the transaction is
+          * included into a block.  The callback method includes the transaction id, block number, and transaction number in the
+          * block.
+          */
+         fc::variant broadcast_transaction_synchronous(const signed_transaction& trx);
+
          void broadcast_block( const signed_block& block );
 
          /**
@@ -394,6 +400,7 @@ FC_API(graphene::app::block_api,
 FC_API(graphene::app::network_broadcast_api,
        (broadcast_transaction)
        (broadcast_transaction_with_callback)
+       (broadcast_transaction_synchronous)
        (broadcast_block)
      )
 FC_API(graphene::app::network_node_api,