audk/NetworkPkg/TcpDxe/SockImpl.h

/** @file
  The function declaration that provided for Socket Interface.

  Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>

  This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php.

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#ifndef _SOCK_IMPL_H_
#define _SOCK_IMPL_H_

#include "Socket.h"
#include "TcpMain.h"

/**
  Signal a event with the given status.

  @param[in] Token        The token's event is to be signaled.
  @param[in] TokenStatus  The status to be sent with the event.

**/
#define SIGNAL_TOKEN(Token, TokenStatus) \
  do { \
    (Token)->Status = (TokenStatus); \
    gBS->SignalEvent ((Token)->Event); \
  } while (0)

#define SOCK_HEADER_SPACE (60 + 60 + 72)

/**
  Process the TCP send data, buffer the tcp txdata and append
  the buffer to socket send buffer, then try to send it.

  @param[in]  Sock              Pointer to the socket.
  @param[in]  TcpTxData         Pointer to the application provided send buffer.

  @retval EFI_SUCCESS           The operation completed successfully.
  @retval EFI_OUT_OF_RESOURCES  Failed due to resource limits.

**/
EFI_STATUS
SockProcessTcpSndData (
  IN SOCKET   *Sock,
  IN VOID     *TcpTxData
  );

/**
  Get received data from the socket layer to the receive token.

  @param[in, out]  Sock       Pointer to the socket.
  @param[in, out]  RcvToken   Pointer to the application provided receive token.

  @return The length of data received in this token.

**/
UINT32
SockProcessRcvToken (
  IN OUT SOCKET        *Sock,
  IN OUT SOCK_IO_TOKEN *RcvToken
  );

/**
  Flush the sndBuffer and rcvBuffer of socket.

  @param[in, out]  Sock                  Pointer to the socket.

**/
VOID
SockConnFlush (
  IN OUT SOCKET *Sock
  );

/**
  Cancel the tokens in the specific token list.

  @param[in]       Token                 Pointer to the Token. If NULL, all tokens 
                                         in SpecifiedTokenList will be canceled.  
  @param[in, out]  SpecifiedTokenList    Pointer to the token list to be checked.
  
  @retval EFI_SUCCESS          Cancel the tokens in the specific token listsuccessfully.
  @retval EFI_NOT_FOUND        The Token is not found in SpecifiedTokenList.
  
**/
EFI_STATUS
SockCancelToken (
  IN     SOCK_COMPLETION_TOKEN  *Token,
  IN OUT LIST_ENTRY             *SpecifiedTokenList
  );

/**
  Create a socket with initial data SockInitData.

  @param[in]  SockInitData          Pointer to the initial data of the socket.

  @return Pointer to the newly created socket, return NULL when exception occured.

**/
SOCKET *
SockCreate (
  IN SOCK_INIT_DATA *SockInitData
  );

/**
  Destroy a socket.

  @param[in, out]  Sock                  Pointer to the socket.

**/
VOID
SockDestroy (
  IN OUT SOCKET *Sock
  );

#endif