1 files changed, 90 insertions, 0 deletions
diff --git a/controller/PostgreSQL.hpp b/controller/PostgreSQL.hpp
new file mode 100644
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--- /dev/null
+++ b/controller/PostgreSQL.hpp
@@ -0,0 +1,90 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2018  ZeroTier, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+ 
+#ifdef ZT_CONTROLLER_USE_LIBPQ
+
+#ifndef ZT_CONTROLLER_LIBPQ_HPP
+#define ZT_CONTROLLER_LIBPQ_HPP
+
+#include "DB.hpp"
+
+extern "C" {
+    typedef struct pg_conn PGconn;
+}
+
+namespace ZeroTier
+{
+
+/**
+ * A controller database driver that talks to PostgreSQL
+ *
+ * This is for use with ZeroTier Central.  Others are free to build and use it
+ * but be aware taht we might change it at any time.
+ */
+class PostgreSQL : public DB
+{
+public:
+    PostgreSQL(EmbeddedNetworkController *const nc, const Identity &myId, const char *path);
+    virtual ~PostgreSQL();
+
+    virtual bool waitForReady();
+    virtual bool isReady();
+    virtual void save(nlohmann::json *orig, nlohmann::json &record);
+    virtual void eraseNetwork(const uint64_t networkId);
+    virtual void eraseMember(const uint64_t networkId, const uint64_t memberId);
+    virtual void nodeIsOnline(const uint64_t networkId, const uint64_t memberId, const InetAddress &physicalAddress);
+
+protected:
+    struct _PairHasher
+	{
+		inline std::size_t operator()(const std::pair<uint64_t,uint64_t> &p) const { return (std::size_t)(p.first ^ p.second); }
+	};
+
+private:
+    void initializeNetworks(PGconn *conn);
+    void initializeMembers(PGconn *conn);
+    void heartbeat();
+    void membersDbWatcher();
+    void networksDbWatcher();
+    void commitThread();
+    void onlineNotificationThread();
+
+    std::string _connString;
+
+    BlockingQueue<nlohmann::json *> _commitQueue;
+
+
+    std::thread _heartbeatThread;
+    std::thread _membersDbWatcher;
+    std::thread _networksDbWatcher;
+    std::thread _commitThread[ZT_CONTROLLER_RETHINKDB_COMMIT_THREADS];
+    std::thread _onlineNotificationThread;
+
+	std::unordered_map< std::pair<uint64_t,uint64_t>,std::pair<int64_t,InetAddress>,_PairHasher > _lastOnline;
+
+    mutable std::mutex _lastOnline_l;
+    mutable std::mutex _readyLock;
+    std::atomic<int> _ready, _connected, _run;
+    mutable volatile bool _waitNoticePrinted;
+};
+
+}
+
+#endif // ZT_CONTROLLER_LIBPQ_HPP
+
+#endif // ZT_CONTROLLER_USE_LIBPQ
+\ No newline at end of file