summaryrefslogtreecommitdiff
path: root/ace/SOCK_IO.h
blob: 67b4be8a5d89b769f8fb1be0621099ff5e7e00f5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
// -*- C++ -*-

//==========================================================================
/**
 *  @file    SOCK_IO.h
 *
 *  $Id$
 *
 *  @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
 */
//==========================================================================

#ifndef ACE_SOCK_IO_H
#define ACE_SOCK_IO_H

#include "ace/pre.h"

#include "ace/SOCK.h"

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

#include "ace/ACE.h"

/**
 * @class ACE_SOCK_IO
 *
 * @brief Defines the methods for the ACE socket wrapper I/O routines
 * (e.g., send/recv).
 *
 *
 * If <timeout> == 0, then the call behaves as a normal
 * send/recv call, i.e., for blocking sockets, the call will
 * block until action is possible; for non-blocking sockets,
 * EWOULDBLOCK will be returned if no action is immediately
 * possible.
 * If <timeout> != 0, the call will wait until the relative time
 * specified in *<timeout> elapses.
 * Errors are reported by -1 and 0 return values.  If the
 * operation times out, -1 is returned with <errno == ETIME>.
 * If it succeeds the number of bytes transferred is returned.
 * Methods with the extra <flags> argument will always result in
 * <send> getting called. Methods without the extra <flags>
 * argument will result in <send> getting called on Win32
 * platforms, and <write> getting called on non-Win32 platforms.
 */
class ACE_Export ACE_SOCK_IO : public ACE_SOCK
{
public:
  // = Initialization and termination methods.

  /// Constructor.
  ACE_SOCK_IO (void);

  /// Destructor.
  ~ACE_SOCK_IO (void);

  /// Recv an <n> byte buffer from the connected socket.
  ssize_t recv (void *buf,
                size_t n,
                int flags,
                const ACE_Time_Value *timeout = 0) const;

  /// Recv an <n> byte buffer from the connected socket.
  ssize_t recv (void *buf,
                size_t n,
                const ACE_Time_Value *timeout = 0) const;

  /// Recv an <iovec> of size <n> from the connected socket.
  ssize_t recvv (iovec iov[],
                 int n,
                 const ACE_Time_Value *timeout = 0) const;

  /// Same as above.  Deprecated.
  ssize_t recv (iovec iov[],
                size_t n,
                const ACE_Time_Value *timeout = 0) const;

  /**
   * Allows a client to read from a socket without having to provide a
   * buffer to read.  This method determines how much data is in the
   * socket, allocates a buffer of this size, reads in the data, and
   * returns the number of bytes read.  The caller is responsible for
   * deleting the member in the <iov_base> field of <io_vec> using
   * delete [] io_vec->iov_base.
   */
  ssize_t recvv (iovec *io_vec,
                 const ACE_Time_Value *timeout = 0) const;

  /// Same as above.  Deprecated.
  ssize_t recv (iovec *io_vec,
                const ACE_Time_Value *timeout = 0) const;

  /// Recv <n> varargs messages to the connected socket.
  ssize_t recv (size_t n,
                ...) 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 <n> byte buffer to the connected socket.
  ssize_t send (const void *buf,
                size_t n,
                int flags,
                const ACE_Time_Value *timeout = 0) const;

  /// Send an <n> byte buffer to the connected socket.
  ssize_t send (const void *buf,
                size_t n,
                const ACE_Time_Value *timeout = 0) const;

  /// Send an <iovec> of size <n> to the connected socket.
  ssize_t sendv (const iovec iov[],
                 int n,
                 const ACE_Time_Value *timeout = 0) const;

  /// Same as above.  Deprecated.
  ssize_t send (const iovec iov[],
                size_t n,
                const ACE_Time_Value *timeout = 0) const;

  /// Send <n> varargs messages to the connected socket.
  ssize_t send (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;

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

  /// Declare the dynamic allocation hooks.
  ACE_ALLOC_HOOK_DECLARE;
};

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

#include "ace/post.h"

#endif /* ACE_SOCK_IO_H */