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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
// UPIPE_Stream.cpp
// $Id$
#define ACE_BUILD_DLL
#include "ace/UPIPE_Stream.h"
#if defined (ACE_HAS_THREADS)
#if !defined (__ACE_INLINE__)
#include "ace/UPIPE_Stream.i"
#endif /* __ACE_INLINE__ */
ACE_ALLOC_HOOK_DEFINE(ACE_UPIPE_Stream)
ACE_UPIPE_Stream::ACE_UPIPE_Stream (void)
: mb_last_ (0),
remaining_ (0),
reference_count_ (0)
{
ACE_TRACE ("ACE_UPIPE_Stream::ACE_UPIPE_STREAM");
}
int
ACE_UPIPE_Stream::control (ACE_IO_Cntl_Msg::ACE_IO_Cntl_Cmds cmd,
void * val)
{
ACE_TRACE ("ACE_UPIPE_Stream::control");
return this->stream_.control (cmd, val);
}
void
ACE_UPIPE_Stream::dump (void) const
{
ACE_TRACE ("ACE_UPIPE_Stream::dump");
}
int
ACE_UPIPE_Stream::close (void)
{
ACE_TRACE ("ACE_UPIPE_Stream::close");
ACE_MT (ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, this->lock_, -1));
this->reference_count_--;
if (this->reference_count_ == 0)
{
// Since the UPIPE should have been closed earlier we won't bother
// checking to see if closing it now fails.
if (this->ACE_SPIPE::get_handle () != ACE_INVALID_HANDLE)
this->ACE_SPIPE::close ();
// Close down the ACE_stream.
return this->stream_.close (0);
}
return 0;
}
int
ACE_UPIPE_Stream::get_remote_addr (ACE_UPIPE_Addr &remote_sap) const
{
ACE_TRACE ("ACE_UPIPE_Stream::get_remote_addr");
remote_sap = this->remote_addr_;
return 0;
}
int
ACE_UPIPE_Stream::send (ACE_Message_Block *mb_p,
ACE_Time_Value *timeout)
{
ACE_TRACE ("ACE_UPIPE_Stream::send_msg");
return this->stream_.put (mb_p, timeout) == -1 ? -1 : 0;
}
int ACE_UPIPE_Stream::recv (ACE_Message_Block *& mb_p,
ACE_Time_Value *timeout)
{
return this->stream_.get (mb_p, timeout) == -1 ? -1 : 0;
}
// Send a buffer.
int
ACE_UPIPE_Stream::send (const char *buffer,
size_t n,
ACE_Time_Value *timeout)
{
ACE_TRACE ("ACE_UPIPE_Stream::send");
ACE_Message_Block *mb_p;
ACE_NEW_RETURN (mb_p, ACE_Message_Block (n), -1);
mb_p->copy (buffer, n);
return this->stream_.put (mb_p, timeout) == -1 ? -1 : (int) n;
}
// Receive a buffer.
int
ACE_UPIPE_Stream::recv (char *buffer,
size_t n,
ACE_Time_Value *timeout)
{
ACE_TRACE ("ACE_UPIPE_Stream::recv");
// Index in buffer.
size_t bytes_read = 0;
while (bytes_read < n)
if (this->mb_last_ != 0)
{
// We have remaining data in our last read Message_Buffer.
if (this->remaining_ < n)
{
// The remaining data is not enough.
ACE_OS::memcpy ((void *) &buffer[bytes_read],
this->mb_last_->rd_ptr (),
this->remaining_);
bytes_read += this->remaining_;
this->remaining_ = 0;
this->mb_last_ = this->mb_last_->release ();
return bytes_read;
}
else
{
// The remaining data is at least enough. If there's
// more, we'll get it the next time through.
ACE_OS::memcpy (&buffer[bytes_read],
this->mb_last_->rd_ptr (),
n);
bytes_read += n;
// Advance rd_ptr.
this->mb_last_->rd_ptr (n);
this->remaining_ -= n;
if (this->remaining_ == 0)
// Now the Message_Buffer is empty.
this->mb_last_ = this->mb_last_->release ();
}
}
else
{
// We have to get a new Message_Buffer from our stream.
int result = this->stream_.get (this->mb_last_, timeout);
if (result == -1)
{
if (errno == EWOULDBLOCK && bytes_read > 0)
// Return the number of bytes read before we timed out.
return bytes_read;
else
return -1;
}
this->remaining_ = this->mb_last_->size ();
}
return bytes_read;
}
int
ACE_UPIPE_Stream::send_n (const char *buf,
size_t n,
ACE_Time_Value *timeout)
{
ACE_TRACE ("ACE_UPIPE_Stream::send_n");
size_t bytes_written;
ssize_t len;
for (bytes_written = 0;
bytes_written < n;
bytes_written += len)
{
len = this->send (buf + bytes_written,
n - bytes_written,
timeout);
if (len == -1)
return -1;
}
return bytes_written;
}
int
ACE_UPIPE_Stream::recv_n (char *buf,
size_t n,
ACE_Time_Value *timeout)
{
ACE_TRACE ("ACE_UPIPE_Stream::recv_n");
size_t bytes_read;
ssize_t len;
for (bytes_read = 0;
bytes_read < n;
bytes_read += len)
{
len = this->recv (buf + bytes_read,
n - bytes_read,
timeout);
if (len == -1)
return -1;
else if (len == 0)
break;
}
return bytes_read;
}
#endif /* ACE_HAS_THREADS */
|
