Squashed 'Sources/OpenVPNAdapter/Libraries/Vendors/openvpn/' content from commit 554d8b888

git-subtree-dir: Sources/OpenVPNAdapter/Libraries/Vendors/openvpn
git-subtree-split: 554d8b88817d3a7b836e78940ed61bb11ed2bd9b

openvpn/transport/tcplinkbase.hpp

@@ -0,0 +1,39 @@
+//    Copyright (C) 2012-2018 OpenVPN Inc.
+
+// Base class for generic link objects.
+
+#include <openvpn/buffer/buffer.hpp>
+#include <openvpn/common/rc.hpp>
+
+#pragma once
+
+namespace openvpn
+{
+  namespace TCPTransport
+  {
+    struct PacketFrom
+    {
+      typedef std::unique_ptr<PacketFrom> SPtr;
+      BufferAllocated buf;
+    };
+
+    class LinkBase : public RC<thread_unsafe_refcount>
+    {
+    protected:
+      virtual void recv_buffer(PacketFrom::SPtr& pfp,
+			       const size_t bytes_recvd) = 0;
+      virtual void from_app_send_buffer(BufferPtr& buf) = 0;
+
+    public:
+      typedef RCPtr<LinkBase> Ptr;
+
+      virtual bool send_queue_empty() const = 0;
+      virtual unsigned int send_queue_size() const = 0;
+      virtual void reset_align_adjust(const size_t align_adjust) = 0;
+      virtual bool send(BufferAllocated& b) = 0;
+      virtual void set_raw_mode(const bool mode) = 0;
+      virtual void start() = 0;
+      virtual void stop() = 0;
+    };
+  }
+}