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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// ace
//
// = FILENAME
// DEV_IO.h
//
// = AUTHOR
// Gerhard Lenzer and Douglas C. Schmidt
//
// ============================================================================
#if !defined (ACE_DEV_IO_H)
#define ACE_DEV_IO_H
#include "ace/DEV.h"
#include "ace/DEV_Addr.h"
class ACE_Export ACE_DEV_IO : public ACE_DEV
// = TITLE
// Read/Write operations on Devices.
{
friend class ACE_DEV_Connector;
public:
ACE_DEV_IO (void);
// Default constructor.
// = Various send operations.
ssize_t send (const void *buf, size_t n) const;
// send upto <n> bytes in <buf>.
ssize_t recv (void *buf, size_t n) const;
// Recv upto <n> bytes in <buf>.
ssize_t send_n (const void *buf, size_t n) const;
// Send n bytes, keep trying until n are sent.
ssize_t recv_n (void *buf, size_t n) const;
// Recv n bytes, keep trying until n are received.
#if defined (ACE_HAS_STREAM_PIPES)
ssize_t recv (ACE_Str_Buf *cntl,
ACE_Str_Buf *data,
int *band,
int *flags) const;
// Recv bytes via STREAM pipes using "band" mode.
ssize_t send (const ACE_Str_Buf *cntl,
const ACE_Str_Buf *data,
int band,
int flags = 0) const;
// Send bytes via STREAM pipes using "band" mode.
ssize_t recv (ACE_Str_Buf *cntl,
ACE_Str_Buf *data,
int *flags) const;
// Recv <cntl> and <data> via STREAM pipes.
ssize_t send (const ACE_Str_Buf *cntl,
const ACE_Str_Buf *data,
int flags = 0) const;
// Send <cntl> and <data> via STREAM pipes.
#endif /* ACE_HAS_STREAM_PIPES */
ssize_t send (const iovec iov[], size_t n) const;
// Send iovecs via <::writev>.
ssize_t recv (iovec iov[], size_t n) const;
// Recv iovecs via <::readv>.
ssize_t send (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 recv (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 send (const void *buf, size_t n, ACE_OVERLAPPED *overlapped) const;
// Send <n> bytes via Win32 WriteFile using overlapped I/O.
ssize_t recv (void *buf, size_t n, ACE_OVERLAPPED *overlapped) const;
// Recv <n> bytes via Win32 ReadFile using overlapped I/O.
void dump (void) const;
// Dump the state of an object.
ACE_ALLOC_HOOK_DECLARE;
// Declare the dynamic allocation hooks.
};
#include "ace/DEV_IO.i"
#endif /* ACE_DEV_IO_H */
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