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/* -*- C++ -*- */
//=============================================================================
/**
* @file DEV_IO.h
*
* $Id$
*
* @author Gerhard Lenzer
@ @author Douglas C. Schmidt
*/
//=============================================================================
#ifndef ACE_DEV_IO_H
#define ACE_DEV_IO_H
#include "ace/pre.h"
#include "ace/DEV.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/DEV_Addr.h"
/**
* @class ACE_DEV_IO
*
* @brief Read/Write operations on Devices.
*/
class ACE_Export ACE_DEV_IO : public ACE_DEV
{
public:
friend class ACE_DEV_Connector;
/// Default constructor.
ACE_DEV_IO (void);
// = Various send operations.
/// send upto <n> bytes in <buf>.
ssize_t send (const void *buf, size_t n) const;
/// Recv upto <n> bytes in <buf>.
ssize_t recv (void *buf, size_t n) 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;
#if defined (ACE_HAS_STREAM_PIPES)
/// 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 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 <cntl> and <data> via STREAM pipes.
ssize_t recv (ACE_Str_Buf *cntl,
ACE_Str_Buf *data,
int *flags) 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;
#endif /* ACE_HAS_STREAM_PIPES */
/// 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;
/// Dump the state of an object.
void dump (void) const;
// = The following two methods are no-ops to keep the
// <ACE_Connector> happy.
/// Return the local endpoint address.
int get_local_addr (ACE_DEV_Addr &) const;
/// Return the address of the remotely connected peer (if there is
/// one).
int get_remote_addr (ACE_DEV_Addr &) const;
/// Declare the dynamic allocation hooks.
ACE_ALLOC_HOOK_DECLARE;
// = Meta-type info
typedef ACE_DEV_Addr PEER_ADDR;
private:
/// Address of device we are connected to.
ACE_DEV_Addr addr_;
};
#if !defined (ACE_LACKS_INLINE_FUNCTIONS)
#include "ace/DEV_IO.i"
#endif
#include "ace/post.h"
#endif /* ACE_DEV_IO_H */
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