Add AMQP 1.0 support via Apache Qpid Proton C++ API 0.17.0

src/init.cpp

@@ -58,6 +58,10 @@
 #include "zmq/zmqnotificationinterface.h"
 #endif
 
+#if ENABLE_PROTON
+#include "amqp/amqpnotificationinterface.h"
+#endif
+
 using namespace std;
 
 extern void ThreadSendAlert();
@@ -73,6 +77,10 @@ bool fFeeEstimatesInitialized = false;
 static CZMQNotificationInterface* pzmqNotificationInterface = NULL;
 #endif
 
+#if ENABLE_PROTON
+static AMQPNotificationInterface* pAMQPNotificationInterface = NULL;
+#endif
+
 #ifdef WIN32
 // Win32 LevelDB doesn't use file descriptors, and the ones used for
 // accessing block files don't count towards the fd_set size limit
@@ -233,6 +241,14 @@ void Shutdown()
     }
 #endif
 
+#if ENABLE_PROTON
+    if (pAMQPNotificationInterface) {
+        UnregisterValidationInterface(pAMQPNotificationInterface);
+        delete pAMQPNotificationInterface;
+        pAMQPNotificationInterface = NULL;
+    }
+#endif
+
 #ifndef WIN32
     try {
         boost::filesystem::remove(GetPidFile());
@@ -408,6 +424,14 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-zmqpubrawtx=<address>", _("Enable publish raw transaction in <address>"));
 #endif
 
+#if ENABLE_PROTON
+    strUsage += HelpMessageGroup(_("AMQP 1.0 notification options:"));
+    strUsage += HelpMessageOpt("-amqppubhashblock=<address>", _("Enable publish hash block in <address>"));
+    strUsage += HelpMessageOpt("-amqppubhashtx=<address>", _("Enable publish hash transaction in <address>"));
+    strUsage += HelpMessageOpt("-amqppubrawblock=<address>", _("Enable publish raw block in <address>"));
+    strUsage += HelpMessageOpt("-amqppubrawtx=<address>", _("Enable publish raw transaction in <address>"));
+#endif
+
     strUsage += HelpMessageGroup(_("Debugging/Testing options:"));
     if (showDebug)
     {
@@ -1230,6 +1254,21 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     }
 #endif
 
+#if ENABLE_PROTON
+    pAMQPNotificationInterface = AMQPNotificationInterface::CreateWithArguments(mapArgs);
+
+    if (pAMQPNotificationInterface) {
+
+        // AMQP support is currently an experimental feature, so fail if user configured AMQP notifications
+        // without enabling experimental features.
+        if (!fExperimentalMode) {
+            return InitError(_("AMQP support requires -experimentalfeatures."));
+        }
+
+        RegisterValidationInterface(pAMQPNotificationInterface);
+    }
+#endif
+
     // ********************************************************* Step 7: load block chain
 
     fReindex = GetBoolArg("-reindex", false);