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

src/amqp/amqppublishnotifier.h

@@ -0,0 +1,56 @@
+// Copyright (c) 2017 The Zcash developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef ZCASH_AMQP_AMQPPUBLISHNOTIFIER_H
+#define ZCASH_AMQP_AMQPPUBLISHNOTIFIER_H
+
+#include "amqpabstractnotifier.h"
+#include "amqpconfig.h"
+#include "amqpsender.h"
+
+#include <memory>
+#include <thread>
+
+class CBlockIndex;
+
+class AMQPAbstractPublishNotifier : public AMQPAbstractNotifier
+{
+private:
+    uint64_t sequence_;                         // memory only, per notifier instance: upcounting message sequence number
+
+    std::shared_ptr<std::thread> thread_;       // proton container thread, may be shared between notifiers
+    std::shared_ptr<AMQPSender> handler_;      // proton container message handler, may be shared between notifiers
+
+public:
+    bool SendMessage(const char *command, const void* data, size_t size);
+    bool Initialize();
+    void Shutdown();
+    void SpawnProtonContainer();
+};
+
+class AMQPPublishHashBlockNotifier : public AMQPAbstractPublishNotifier
+{
+public:
+    bool NotifyBlock(const CBlockIndex *pindex);
+};
+
+class AMQPPublishHashTransactionNotifier : public AMQPAbstractPublishNotifier
+{
+public:
+    bool NotifyTransaction(const CTransaction &transaction);
+};
+
+class AMQPPublishRawBlockNotifier : public AMQPAbstractPublishNotifier
+{
+public:
+    bool NotifyBlock(const CBlockIndex *pindex);
+};
+
+class AMQPPublishRawTransactionNotifier : public AMQPAbstractPublishNotifier
+{
+public:
+    bool NotifyTransaction(const CTransaction &transaction);
+};
+
+#endif // ZCASH_AMQP_AMQPPUBLISHNOTIFIER_H