Merge pull request #3553

a8db31c qt: allow `walletpassphrase` in debug console without -server (Wladimir J. van der Laan)

1 files changed, 15 insertions, 0 deletions

diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index 9d34a900ff..0d9e95402b 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -38,6 +38,7 @@ static asio::io_service* rpc_io_service = NULL;
 static map<string, boost::shared_ptr<deadline_timer> > deadlineTimers;
 static ssl::context* rpc_ssl_context = NULL;
 static boost::thread_group* rpc_worker_group = NULL;
+static boost::asio::io_service::work *rpc_dummy_work = NULL;
 
 void RPCTypeCheck(const Array& params,
                   const list<Value_type>& typesExpected,
@@ -607,6 +608,19 @@ void StartRPCThreads()
         rpc_worker_group->create_thread(boost::bind(&asio::io_service::run, rpc_io_service));
 }
 
+void StartDummyRPCThread()
+{
+    if(rpc_io_service == NULL)
+    {
+        rpc_io_service = new asio::io_service();
+        /* Create dummy "work" to keep the thread from exiting when no timeouts active,
+         * see http://www.boost.org/doc/libs/1_51_0/doc/html/boost_asio/reference/io_service.html#boost_asio.reference.io_service.stopping_the_io_service_from_running_out_of_work */
+        rpc_dummy_work = new asio::io_service::work(*rpc_io_service);
+        rpc_worker_group = new boost::thread_group();
+        rpc_worker_group->create_thread(boost::bind(&asio::io_service::run, rpc_io_service));
+    }
+}
+
 void StopRPCThreads()
 {
     if (rpc_io_service == NULL) return;
@@ -615,6 +629,7 @@ void StopRPCThreads()
     rpc_io_service->stop();
     if (rpc_worker_group != NULL)
         rpc_worker_group->join_all();
+    delete rpc_dummy_work; rpc_dummy_work = NULL;
     delete rpc_worker_group; rpc_worker_group = NULL;
     delete rpc_ssl_context; rpc_ssl_context = NULL;
     delete rpc_io_service; rpc_io_service = NULL;