/* -*- C++ -*- */

//=============================================================================
/**
 *  @file    SPIPE_Stream.h
 *
 *  SPIPE_Stream.h,v 4.14 2000/11/01 22:17:03 coryan Exp
 *
 *  @author Doug Schmidt
 */
//=============================================================================


#ifndef ACE_SPIPE_STREAM_H
#define ACE_SPIPE_STREAM_H
#include "ace/pre.h"

#include "ace/SPIPE.h"

#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */

#include "ace/SPIPE_Addr.h"

/**
 * @class ACE_SPIPE_Stream
 *
 * @brief Define an ACE_SPIPE_Stream.
 */
class ACE_Export ACE_SPIPE_Stream : public ACE_SPIPE
{
public:
  friend class ACE_SPIPE_Acceptor;
  friend class ACE_SPIPE_Connector;

  // = Initialization method.
  /// Default constructor.
  ACE_SPIPE_Stream (void);

  /// Obtain the address of whom we are connected with.
  int get_remote_addr (ACE_SPIPE_Addr &remote_sap) const;

  /// Send an open FD to another process.
  int send_handle (ACE_HANDLE handle) const;

  /// Recv an open FD from another process.
  int recv_handle (ACE_HANDLE &handle) const;

  /// Recv an open FD from another process.
  int recv_handle (strrecvfd &recvfd) const;

  /// Send n bytes, keep trying until n are sent.
  ssize_t send_n (const void *buf, size_t n) const;

  /// Recv n bytes, keep trying until n are received.
  ssize_t recv_n (void *buf, size_t n) const;

  /// Send bytes via STREAM pipes using "band" mode.
  ssize_t send (const void *buf, size_t n) const;

  /// Recv bytes via STREAM pipes using "band" mode.
  ssize_t recv (void *buf, size_t n) const;

  /// Send <cntl> and <data> via STREAM pipes.
  ssize_t send (const ACE_Str_Buf *cntl,
                const ACE_Str_Buf *data,
                int flags = 0) const;

  /// Recv <cntl> and <data> via STREAM pipes.
  ssize_t recv (ACE_Str_Buf *cntl,
                ACE_Str_Buf *data,
                int *flags) const;

  /// Send bytes via STREAM pipes using "band" mode.
  ssize_t send (const ACE_Str_Buf *cntl,
                const ACE_Str_Buf *data,
                int band,
                int flags) const;

  /// Recv bytes via STREAM pipes using "band" mode.
  ssize_t recv (ACE_Str_Buf *cntl,
                ACE_Str_Buf *data,
                int *band,
                int *flags) const;

  /// Send iovecs via <::writev>.
  ssize_t send (const iovec iov[], size_t n) const;

  /// Recv iovecs via <::readv>.
  ssize_t recv (iovec iov[], size_t n) const;

  /**
   * Send N char *ptrs and int lengths.  Note that the char *'s
   * precede the ints (basically, an varargs version of writev).  The
   * count N is the *total* number of trailing arguments, *not* a
   * couple of the number of tuple pairs!
   */
  ssize_t send (size_t n, ...) const;

  /**
   * This is an interface to ::readv, that doesn't use the struct
   * iovec explicitly.  The ... can be passed as an arbitrary number
   * of (char *ptr, int len) tuples.  However, the count N is the
   * *total* number of trailing arguments, *not* a couple of the
   * number of tuple pairs!
   */
  ssize_t recv (size_t n, ...) const;

  /// Send <n> bytes via Win32 WriteFile using overlapped I/O.
  ssize_t send (const void *buf, size_t n, ACE_OVERLAPPED *overlapped) const;

  /// Recv <n> bytes via Win32 ReadFile using overlapped I/O.
  ssize_t recv (void *buf, size_t n, ACE_OVERLAPPED *overlapped) const;

  /// Send an <iovec> of size <n> to the stream.
  ssize_t sendv (const iovec iov[],
                 size_t n) const;

  /// Send an <iovec> of size <n> to the stream.  Will block until all
  /// bytes are sent or an error occurs.
  ssize_t sendv_n (const iovec iov[],
                   size_t n) const;

  /// Receive an <iovec> of size <n> to the stream.
  ssize_t recvv_n (iovec iov[],
                   size_t n) const;

  // = Meta-type info
  typedef ACE_SPIPE_Addr PEER_ADDR;

  /// Dump the state of an object.
  void dump (void) const;

  /// Declare the dynamic allocation hooks.
  ACE_ALLOC_HOOK_DECLARE;

private:
  ACE_SPIPE_Addr remote_addr_;
};

#if !defined (ACE_LACKS_INLINE_FUNCTIONS)
#include "ace/SPIPE_Stream.i"
#endif

#include "ace/post.h"
#endif /* ACE_SPIPE_STREAM_H */
