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// 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_
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