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
|
/*
Copyright (c) 2009-2012 250bpm s.r.o.
Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
This file is part of Crossroads I/O project.
Crossroads I/O is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
Crossroads is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __XS_XREQ_HPP_INCLUDED__
#define __XS_XREQ_HPP_INCLUDED__
#include "socket_base.hpp"
#include "session_base.hpp"
#include "fq.hpp"
#include "lb.hpp"
namespace xs
{
class ctx_t;
class msg_t;
class pipe_t;
class io_thread_t;
class socket_base_t;
class xreq_t :
public socket_base_t
{
public:
xreq_t (xs::ctx_t *parent_, uint32_t tid_, int sid_);
~xreq_t ();
protected:
// Overloads of functions from socket_base_t.
int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
void xattach_pipe (xs::pipe_t *pipe_, bool icanhasall_);
int xsend (xs::msg_t *msg_, int flags_);
int xrecv (xs::msg_t *msg_, int flags_);
bool xhas_in ();
bool xhas_out ();
void xread_activated (xs::pipe_t *pipe_);
void xwrite_activated (xs::pipe_t *pipe_);
void xterminated (xs::pipe_t *pipe_);
private:
// Messages are fair-queued from inbound pipes. And load-balanced to
// the outbound pipes.
fq_t fq;
lb_t lb;
// Have we prefetched a message.
bool prefetched;
// Holds the prefetched message.
msg_t prefetched_msg;
xreq_t (const xreq_t&);
const xreq_t &operator = (const xreq_t&);
};
class xreq_session_t : public session_base_t
{
public:
xreq_session_t (xs::io_thread_t *io_thread_, bool connect_,
xs::socket_base_t *socket_, const options_t &options_,
const char *protocol_, const char *address_);
~xreq_session_t ();
private:
xreq_session_t (const xreq_session_t&);
const xreq_session_t &operator = (const xreq_session_t&);
};
}
#endif
|
