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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_TCP_SOCKET_PRIVATE_IMPL_H_
#define PPAPI_SHARED_IMPL_PRIVATE_TCP_SOCKET_PRIVATE_IMPL_H_
#include <string>
#include "base/compiler_specific.h"
#include "ppapi/shared_impl/resource.h"
#include "ppapi/shared_impl/tracked_callback.h"
#include "ppapi/thunk/ppb_tcp_socket_private_api.h"
namespace ppapi {
// This class provides the shared implementation of a
// PPB_TCPSocket_Private. The functions that actually send messages
// to browser are implemented differently for the proxied and
// non-proxied derived classes.
class PPAPI_SHARED_EXPORT TCPSocketPrivateImpl
: public thunk::PPB_TCPSocket_Private_API,
public Resource {
public:
// C-tor used in Impl case.
TCPSocketPrivateImpl(PP_Instance instance, uint32 socket_id);
// C-tor used in Proxy case.
TCPSocketPrivateImpl(const HostResource& resource, uint32 socket_id);
virtual ~TCPSocketPrivateImpl();
// The maximum number of bytes that each PpapiHostMsg_PPBTCPSocket_Read
// message is allowed to request.
static const int32_t kMaxReadSize;
// The maximum number of bytes that each PpapiHostMsg_PPBTCPSocket_Write
// message is allowed to carry.
static const int32_t kMaxWriteSize;
// Resource overrides.
virtual PPB_TCPSocket_Private_API* AsPPB_TCPSocket_Private_API() OVERRIDE;
// PPB_TCPSocket_Private_API implementation.
virtual int32_t Connect(const char* host,
uint16_t port,
PP_CompletionCallback callback) OVERRIDE;
virtual int32_t ConnectWithNetAddress(
const PP_NetAddress_Private* addr,
PP_CompletionCallback callback) OVERRIDE;
virtual PP_Bool GetLocalAddress(PP_NetAddress_Private* local_addr) OVERRIDE;
virtual PP_Bool GetRemoteAddress(PP_NetAddress_Private* remote_addr) OVERRIDE;
virtual int32_t SSLHandshake(const char* server_name,
uint16_t server_port,
PP_CompletionCallback callback) OVERRIDE;
virtual int32_t Read(char* buffer,
int32_t bytes_to_read,
PP_CompletionCallback callback) OVERRIDE;
virtual int32_t Write(const char* buffer,
int32_t bytes_to_write,
PP_CompletionCallback callback) OVERRIDE;
virtual void Disconnect() OVERRIDE;
// Notifications on operations completion.
void OnConnectCompleted(bool succeeded,
const PP_NetAddress_Private& local_addr,
const PP_NetAddress_Private& remote_addr);
void OnSSLHandshakeCompleted(bool succeeded);
void OnReadCompleted(bool succeeded, const std::string& data);
void OnWriteCompleted(bool succeeded, int32_t bytes_written);
// Send functions that need to be implemented differently for the
// proxied and non-proxied derived classes.
virtual void SendConnect(const std::string& host, uint16_t port) = 0;
virtual void SendConnectWithNetAddress(const PP_NetAddress_Private& addr) = 0;
virtual void SendSSLHandshake(const std::string& server_name,
uint16_t server_port) = 0;
virtual void SendRead(int32_t bytes_to_read) = 0;
virtual void SendWrite(const std::string& buffer) = 0;
virtual void SendDisconnect() = 0;
protected:
enum ConnectionState {
// Before a connection is successfully established (including a connect
// request is pending or a previous connect request failed).
BEFORE_CONNECT,
// A connection has been successfully established (including a request of
// initiating SSL is pending).
CONNECTED,
// An SSL connection has been successfully established.
SSL_CONNECTED,
// The connection has been ended.
DISCONNECTED
};
void Init(uint32 socket_id);
bool IsConnected() const;
void PostAbortIfNecessary(scoped_refptr<TrackedCallback>* callback);
uint32 socket_id_;
ConnectionState connection_state_;
scoped_refptr<TrackedCallback> connect_callback_;
scoped_refptr<TrackedCallback> ssl_handshake_callback_;
scoped_refptr<TrackedCallback> read_callback_;
scoped_refptr<TrackedCallback> write_callback_;
char* read_buffer_;
int32_t bytes_to_read_;
PP_NetAddress_Private local_addr_;
PP_NetAddress_Private remote_addr_;
DISALLOW_COPY_AND_ASSIGN(TCPSocketPrivateImpl);
};
} // namespace ppapi
#endif // PPAPI_SHARED_IMPL_PRIVATE_TCP_SOCKET_PRIVATE_IMPL_H_
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