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
|
// Pipe.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/SOCK_Acceptor.h"
#include "ace/SOCK_Connector.h"
#include "ace/Pipe.h"
void
ACE_Pipe::dump (void) const
{
ACE_TRACE ("ACE_Pipe::dump");
ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
ACE_DEBUG ((LM_DEBUG, "handles_[0] = %d", this->handles_[0]));
ACE_DEBUG ((LM_DEBUG, "\nhandles_[1] = %d", this->handles_[1]));
ACE_DEBUG ((LM_DEBUG, "\n"));
ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
}
int
ACE_Pipe::open (void)
{
ACE_TRACE ("ACE_Pipe::open");
#if defined (ACE_WIN32) || defined (ACE_LACKS_SOCKETPAIR)
ACE_INET_Addr my_addr;
ACE_SOCK_Acceptor acceptor;
ACE_SOCK_Connector connector;
ACE_SOCK_Stream reader;
ACE_SOCK_Stream writer;
int result = 0;
// Bind listener to any port and then find out what the port was.
if (acceptor.open (ACE_Addr::sap_any) == -1
|| acceptor.get_local_addr (my_addr) == -1)
result = -1;
else
{
ACE_INET_Addr sv_addr (my_addr.get_port_number (), "localhost");
// Establish a connection within the same process.
if (connector.connect (writer, sv_addr) == -1)
result = -1;
else if (acceptor.accept (reader) == -1)
{
writer.close ();
result = -1;
}
}
#if !defined (VXWORKS)
int one = 1;
// Make sure that the TCP stack doesn't try to buffer small writes.
// Since this communication is purely local to the host it doesn't
// affect network performance.
if (writer.set_option (IPPROTO_TCP, TCP_NODELAY,
&one, sizeof one) == -1)
return -1;
#endif /* !VXWORKS */
// Close down the acceptor endpoint since we don't need it anymore.
acceptor.close ();
if (result == -1)
return -1;
this->handles_[0] = reader.get_handle ();
this->handles_[1] = writer.get_handle ();
#elif defined (ACE_HAS_STREAM_PIPES)
if (ACE_OS::pipe (this->handles_) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "pipe"), -1);
int arg = RMSGN;
// Enable "msg no discard" mode, which ensures that record
// boundaries are maintained when messages are sent and received.
if (ACE_OS::ioctl (this->handles_[0], I_SRDOPT, (void *) arg) == -1
|| ACE_OS::ioctl (this->handles_[1], I_SRDOPT, (void *) arg) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "ioctl"), -1);
#else
if (ACE_OS::socketpair (AF_UNIX, SOCK_DGRAM, 0, this->handles_) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "socketpair"), -1);
#endif /* ACE_WIN32 */
// Point both the read and write HANDLES to the appropriate socket
// HANDLEs.
return 0;
}
int
ACE_Pipe::open (ACE_HANDLE handles[2])
{
ACE_TRACE ("ACE_Pipe::open");
if (this->open () == -1)
return -1;
else
{
handles[0] = this->handles_[0];
handles[1] = this->handles_[1];
return 0;
}
}
// Do nothing...
ACE_Pipe::ACE_Pipe (void)
{
ACE_TRACE ("ACE_Pipe::ACE_Pipe");
this->handles_[0] = ACE_INVALID_HANDLE;
this->handles_[1] = ACE_INVALID_HANDLE;
}
ACE_Pipe::ACE_Pipe (ACE_HANDLE handles[2])
{
ACE_TRACE ("ACE_Pipe::ACE_Pipe");
if (this->open (handles) == -1)
ACE_ERROR ((LM_ERROR, "ACE_Pipe::ACE_Pipe"));
}
ACE_Pipe::ACE_Pipe (ACE_HANDLE read,
ACE_HANDLE write)
{
ACE_TRACE ("ACE_Pipe::ACE_Pipe");
this->handles_[0] = read;
this->handles_[1] = write;
}
int
ACE_Pipe::close (void)
{
ACE_TRACE ("ACE_Pipe::close");
// Note that the following will work even if we aren't closing down
// sockets because ACE_OS::closesocket() will just call ::close() in
// that case!
if (ACE_OS::closesocket (this->handles_[0]) == -1
|| ACE_OS::closesocket (this->handles_[1]) == -1)
return -1;
else
return 0;
}
|
