summaryrefslogtreecommitdiff
path: root/ace/SOCK_Dgram.h
blob: 94b3e245eb1bc80f1fe1956f66e5108b8ed2e59f (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
/* -*- C++ -*- */
// $Id$

// ===========================================================================
//
// = LIBRARY
//    ace
// 
// = FILENAME
//    SOCK_Dgram.h
//
// = AUTHOR
//    Doug Schmidt 
// 
// ===========================================================================

#if !defined (ACE_SOCK_DGRAM_H)
#define ACE_SOCK_DGRAM_H

#include "ace/SOCK.h"
#include "ace/Addr.h"

class ACE_Export ACE_SOCK_Dgram : public ACE_SOCK
  // = TITLE
  //     Defines the member functions for the ACE_SOCK datagram
  //     abstraction. 
{
public:
  // = Initialization routines.
  ACE_SOCK_Dgram (void);
  // Default constructor.

  ACE_SOCK_Dgram (const ACE_Addr &local, 
                  int protocol_family = PF_INET, 
                  int protocol = 0,
                  int reuse_addr = 0);
  // Initiate a socket dgram.

  int open (const ACE_Addr &local, 
            int protocol_family = PF_INET, 
            int protocol = 0,
            int reuse_addr = 0);
  // Initiate a socket dgram.

  // = Data transfer routines.
  ssize_t send (const void *buf, 
                size_t n, 
                const ACE_Addr &addr, 
                int flags = 0) const;
  // Send an <n> byte <buf> to the datagram socket (uses sendto(3)).

  ssize_t recv (void *buf, 
                size_t n, 
                ACE_Addr &addr, 
                int flags = 0) const;
  // Receive an <n> byte <buf> from the datagram socket (uses
  // recvfrom(3)).

  ssize_t recv (iovec *io_vec, 
		ACE_Addr &addr, 
		int flags = 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 the
  // ``delete []'' syntax.

  ssize_t send (const iovec iov[], 
                size_t n, 
                const ACE_Addr &addr, 
                int flags = 0) const;
  // Send an <iovec> of size <n> to the datagram socket (uses
  // sendmsg(3)).

  ssize_t recv (iovec iov[], 
                size_t n, 
                ACE_Addr &addr, 
                int flags = 0) const;    
  // Recv an <iovec> of size <n> to the datagram socket (uses
  // recvmsg(3)).

  ssize_t recv (void *buf, 
		size_t n, 
		ACE_Addr &addr, 
		int flags, 
		const ACE_Time_Value *timeout) const;
  // Wait up to <timeout> amount of time to receive a datagram into
  // <buf>.  The <ACE_Time_Value> indicates how long to blocking
  // trying to receive.  If <timeout> == 0, the caller will block
  // until action is possible, else will wait until the relative time
  // specified in *<timeout> elapses).  If <recv> times out a -1 is
  // returned with <errno == ETIME>.  If it succeeds the number of
  // bytes received is returned.

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

  ACE_ALLOC_HOOK_DECLARE;
  // Declare the dynamic allocation hooks.

protected:  
  int shared_open (const ACE_Addr &local, 
                   int protocol_family);
  // Open is shared by this and by <LSOCK_Dgram>.

private:
  int  get_remote_addr (ACE_Addr &) const; 
  // Do not allow this function to percolate up to this interface...
};

#include "ace/SOCK_Dgram.i"

#endif /* ACE_SOCK_DGRAM_H */