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
|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* Inspire is copyright (C) 2002-2005 ChatSpike-Dev.
* E-mail:
* <brain@chatspike.net>
* <Craig@chatspike.net>
*
* Written by Craig Edwards, Craig McLure, and others.
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd_config.h"
#include "globals.h"
#include "inspircd.h"
#ifdef USE_EPOLL
#include <sys/epoll.h>
#define EP_DELAY 5
#endif
#ifdef USE_KQUEUE
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
#endif
#include <vector>
#include <string>
#include "socketengine.h"
char ref[65535];
SocketEngine::SocketEngine()
{
log(DEBUG,"SocketEngine::SocketEngine()");
#ifdef USE_EPOLL
EngineHandle = epoll_create(65535);
#endif
#ifdef USE_KQUEUE
EngineHandle = kqueue();
#endif
}
SocketEngine::~SocketEngine()
{
log(DEBUG,"SocketEngine::~SocketEngine()");
#ifdef USE_EPOLL
close(EngineHandle);
#endif
#ifdef USE_KQUEUE
close(EngineHandle);
#endif
}
char SocketEngine::GetType(int fd)
{
if ((fd < 0) || (fd > 65535))
return X_EMPTY_SLOT;
/* Mask off the top bit used for 'read/write' state */
return (ref[fd] & ~0x80);
}
bool SocketEngine::AddFd(int fd, bool readable, char type)
{
if ((fd < 0) || (fd > 65535))
return false;
#ifdef USE_SELECT
fds[fd] = fd;
#endif
ref[fd] = type;
if (readable)
{
log(DEBUG,"Set readbit");
ref[fd] |= X_READBIT;
}
log(DEBUG,"Add socket %d",fd);
#ifdef USE_EPOLL
struct epoll_event ev;
log(DEBUG,"epoll: Add socket to events, ep=%d socket=%d",EngineHandle,fd);
readable ? ev.events = EPOLLIN | EPOLLET : ev.events = EPOLLOUT | EPOLLET;
ev.data.fd = fd;
int i = epoll_ctl(EngineHandle, EPOLL_CTL_ADD, fd, &ev);
if (i < 0)
{
log(DEBUG,"epoll: List insertion failure!");
return false;
}
#endif
#ifdef USE_KQUEUE
struct kevent ke;
log(DEBUG,"kqueue: Add socket to events, kq=%d socket=%d",EngineHandle,fd);
EV_SET(&ke, fd, readable ? EVFILT_READ : EVFILT_WRITE, EV_ADD, 0, 0, NULL);
int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
if (i == -1)
{
log(DEBUG,"kqueue: List insertion failure!");
return false;
}
#endif
return true;
}
bool SocketEngine::DelFd(int fd)
{
log(DEBUG,"SocketEngine::DelFd(%d)",fd);
if ((fd < 0) || (fd > 65535))
return false;
#ifdef USE_SELECT
std::map<int,int>::iterator t = fds.find(fd);
if (t != fds.end())
{
fds.erase(t);
log(DEBUG,"Deleted fd %d",fd);
}
#endif
#ifdef USE_KQUEUE
struct kevent ke;
EV_SET(&ke, fd, ref[fd] & X_READBIT ? EVFILT_READ : EVFILT_WRITE, EV_DELETE, 0, 0, NULL);
int i = kevent(EngineHandle, &ke, 1, 0, 0, NULL);
if (i == -1)
{
log(DEBUG,"kqueue: Failed to remove socket from queue!");
return false;
}
#endif
#ifdef USE_EPOLL
struct epoll_event ev;
ref[fd] && X_READBIT ? ev.events = EPOLLIN | EPOLLET : ev.events = EPOLLOUT | EPOLLET;
ev.data.fd = fd;
int i = epoll_ctl(EngineHandle, EPOLL_CTL_DEL, fd, &ev);
if (i < 0)
{
log(DEBUG,"epoll: List deletion failure!");
return false;
}
#endif
ref[fd] = 0;
return true;
}
int SocketEngine::Wait(int* fdlist)
{
int result = 0;
#ifdef USE_SELECT
FD_ZERO(&wfdset);
FD_ZERO(&rfdset);
timeval tval;
int sresult;
for (std::map<int,int>::iterator a = fds.begin(); a != fds.end(); a++)
{
if (ref[a->second] & X_READBIT)
{
FD_SET (a->second, &rfdset);
}
else
{
FD_SET (a->second, &wfdset);
}
}
tval.tv_sec = 0;
tval.tv_usec = 100L;
sresult = select(FD_SETSIZE, &rfdset, &wfdset, NULL, &tval);
if (sresult > 0)
{
for (std::map<int,int>::iterator a = fds.begin(); a != fds.end(); a++)
{
if ((FD_ISSET (a->second, &rfdset)) || (FD_ISSET (a->second, &wfdset)))
fdlist[result++] = a->second;
}
}
#endif
#ifdef USE_KQUEUE
ts.tv_nsec = 10000L;
ts.tv_sec = 0;
int i = kevent(EngineHandle, NULL, 0, &ke_list[0], 65535, &ts);
for (int j = 0; j < i; j++)
fdlist[result++] = ke_list[j].ident;
#endif
#ifdef USE_EPOLL
int i = epoll_wait(EngineHandle, events, 65535, 100);
for (int j = 0; j < i; j++)
fdlist[result++] = events[j].data.fd;
#endif
return result;
}
std::string SocketEngine::GetName()
{
#ifdef USE_SELECT
return "select";
#endif
#ifdef USE_KQUEUE
return "kqueue";
#endif
#ifdef USE_EPOLL
return "epoll";
#endif
return "misconfigured";
}
|
