Reland 8688002: PPB_TCPSocket_Private/PPB_UDPSocket_Private are exposed to Browser

ppapi/shared_impl/private/udp_socket_private_impl.h

Index: ppapi/shared_impl/private/udp_socket_private_impl.h
diff --git a/ppapi/shared_impl/private/udp_socket_private_impl.h b/ppapi/shared_impl/private/udp_socket_private_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..0f06e06031c92e4750ea6aace556e5bc237acfd3
--- /dev/null
+++ b/ppapi/shared_impl/private/udp_socket_private_impl.h
@@ -0,0 +1,92 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PPAPI_SHARED_IMPL_PRIVATE_UDP_SOCKET_PRIVATE_IMPL_H_
+#define PPAPI_SHARED_IMPL_PRIVATE_UDP_SOCKET_PRIVATE_IMPL_H_
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "ppapi/shared_impl/resource.h"
+#include "ppapi/thunk/ppb_udp_socket_private_api.h"
+
+namespace ppapi {
+
+// This class provides the shared implementation of a
+// PPB_UDPSocket_Private.  The functions that actually send messages
+// to browser are implemented differently for the proxied and
+// non-proxied derived classes.
+class PPAPI_SHARED_EXPORT UDPSocketPrivateImpl
+    : public thunk::PPB_UDPSocket_Private_API,
+      public Resource {
+ public:
+  // C-tor used in Impl case.
+  UDPSocketPrivateImpl(PP_Instance instance, uint32 socket_id);
+  // C-tor used in Proxy case.
+  UDPSocketPrivateImpl(const HostResource& resource, uint32 socket_id);
+
+  virtual ~UDPSocketPrivateImpl();
+
+  // The maximum number of bytes that each PpapiHostMsg_PPBUDPSocket_RecvFrom
+  // message is allowed to request.
+  static const int32_t kMaxReadSize;
+  // The maximum number of bytes that each PpapiHostMsg_PPBUDPSocket_SendTo
+  // message is allowed to carry.
+  static const int32_t kMaxWriteSize;
+
+  // Resource overrides.
+  virtual PPB_UDPSocket_Private_API* AsPPB_UDPSocket_Private_API() OVERRIDE;
+
+  // PPB_UDPSocket_Private_API implementation.
+  virtual int32_t Bind(const PP_NetAddress_Private* addr,
+                       PP_CompletionCallback callback) OVERRIDE;
+  virtual int32_t RecvFrom(char* buffer,
+                           int32_t num_bytes,
+                           PP_CompletionCallback callback) OVERRIDE;
+  virtual PP_Bool GetRecvFromAddress(PP_NetAddress_Private* addr) OVERRIDE;
+  virtual int32_t SendTo(const char* buffer,
+                         int32_t num_bytes,
+                         const PP_NetAddress_Private* addr,
+                         PP_CompletionCallback callback) OVERRIDE;
+  virtual void Close() OVERRIDE;
+
+  // Notifications from the proxy.
+  void OnBindCompleted(bool succeeded);
+  void OnRecvFromCompleted(bool succeeded,
+                           const std::string& data,
+                           const PP_NetAddress_Private& addr);
+  void OnSendToCompleted(bool succeeded, int32_t bytes_written);
+
+  // Send functions that need to be implemented differently for
+  // the proxied and non-proxied derived classes.
+  virtual void SendBind(const PP_NetAddress_Private& addr) = 0;
+  virtual void SendRecvFrom(int32_t num_bytes) = 0;
+  virtual void SendSendTo(const std::string& buffer,
+                          const PP_NetAddress_Private& addr) = 0;
+  virtual void SendClose() = 0;
+
+ protected:
+  void Init(uint32 socket_id);
+  void PostAbortAndClearIfNecessary(PP_CompletionCallback* callback);
+
+  uint32 socket_id_;
+
+  bool bound_;
+  bool closed_;
+
+  PP_CompletionCallback bind_callback_;
+  PP_CompletionCallback recvfrom_callback_;
+  PP_CompletionCallback sendto_callback_;
+
+  char* read_buffer_;
+  int32_t bytes_to_read_;
+
+  PP_NetAddress_Private recvfrom_addr_;
+
+  DISALLOW_COPY_AND_ASSIGN(UDPSocketPrivateImpl);
+};
+
+}  // namespace ppapi
+
+#endif  // PPAPI_SHARED_IMPL_PRIVATE_UDP_SOCKET_PRIVATE_IMPL_H_