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
218
219
220
221
222
223
|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2010 InspIRCd Development Team
* See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "exitcodes.h"
#include <port.h>
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2010 InspIRCd Development Team
* See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#ifndef __SOCKETENGINE_PORTS__
#define __SOCKETENGINE_PORTS__
#ifndef __sun
# error You need Solaris 10 or later to make use of this code.
#endif
#include <vector>
#include <string>
#include <map>
#include "inspircd_config.h"
#include "inspircd.h"
#include "socketengine.h"
#include <port.h>
/** A specialisation of the SocketEngine class, designed to use solaris 10 I/O completion ports
*/
class PortsEngine : public SocketEngine
{
private:
/** These are used by epoll() to hold socket events
*/
port_event_t* events;
public:
/** Create a new PortsEngine
* @param Instance The creator of this object
*/
PortsEngine();
/** Delete a PortsEngine
*/
virtual ~PortsEngine();
virtual bool AddFd(EventHandler* eh, int event_mask);
void OnSetEvent(EventHandler* eh, int old_event, int new_event);
virtual bool DelFd(EventHandler* eh, bool force = false);
virtual int DispatchEvents();
virtual std::string GetName();
virtual void WantWrite(EventHandler* eh);
};
#endif
#include <ulimit.h>
PortsEngine::PortsEngine()
{
int max = ulimit(4, 0);
if (max > 0)
{
MAX_DESCRIPTORS = max;
return max;
}
else
{
ServerInstance->Logs->Log("SOCKET", DEFAULT, "ERROR: Can't determine maximum number of open sockets!");
printf("ERROR: Can't determine maximum number of open sockets!\n");
ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
}
EngineHandle = port_create();
if (EngineHandle == -1)
{
ServerInstance->Logs->Log("SOCKET",SPARSE,"ERROR: Could not initialize socket engine: %s", strerror(errno));
ServerInstance->Logs->Log("SOCKET",SPARSE,"ERROR: This is a fatal error, exiting now.");
printf("ERROR: Could not initialize socket engine: %s\n", strerror(errno));
printf("ERROR: This is a fatal error, exiting now.\n");
ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
}
CurrentSetSize = 0;
ref = new EventHandler* [GetMaxFds()];
events = new port_event_t[GetMaxFds()];
memset(ref, 0, GetMaxFds() * sizeof(EventHandler*));
}
PortsEngine::~PortsEngine()
{
this->Close(EngineHandle);
delete[] ref;
delete[] events;
}
static int mask_to_events(int event_mask)
{
int rv = 0;
if (event_mask & (FD_WANT_POLL_READ | FD_WANT_FAST_READ))
rv |= POLLRDNORM;
if (event_mask & (FD_WANT_POLL_WRITE | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE))
rv |= POLLWRNORM;
return rv;
}
bool PortsEngine::AddFd(EventHandler* eh, int event_mask)
{
int fd = eh->GetFd();
if ((fd < 0) || (fd > GetMaxFds() - 1))
return false;
if (ref[fd])
return false;
ref[fd] = eh;
SocketEngine::SetEventMask(eh, event_mask);
port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(event_mask), eh);
ServerInstance->Logs->Log("SOCKET",DEBUG,"New file descriptor: %d", fd);
CurrentSetSize++;
return true;
}
void PortsEngine::WantWrite(EventHandler* eh, int old_mask, int new_mask)
{
if (mask_to_events(new_mask) != mask_to_events(old_mask))
port_associate(EngineHandle, PORT_SOURCE_FD, eh->GetFd(), mask_to_events(new_mask), eh);
}
bool PortsEngine::DelFd(EventHandler* eh, bool force)
{
int fd = eh->GetFd();
if ((fd < 0) || (fd > GetMaxFds() - 1))
return false;
port_dissociate(EngineHandle, PORT_SOURCE_FD, fd);
CurrentSetSize--;
ref[fd] = NULL;
ServerInstance->Logs->Log("SOCKET",DEBUG,"Remove file descriptor: %d", fd);
return true;
}
int PortsEngine::DispatchEvents()
{
struct timespec poll_time;
poll_time.tv_sec = 1;
poll_time.tv_nsec = 0;
unsigned int nget = 1; // used to denote a retrieve request.
int i = port_getn(EngineHandle, this->events, GetMaxFds() - 1, &nget, &poll_time);
// first handle an error condition
if (i == -1)
return i;
TotalEvents += nget;
for (i = 0; i < nget; i++)
{
switch (this->events[i].portev_source)
{
case PORT_SOURCE_FD:
{
int fd = this->events[i].portev_object;
EventHandler* eh = ref[fd];
if (eh)
{
int mask = eh->GetEventMask();
if (events[i].portev_events & POLLWRNORM)
mask &= ~(FD_WRITE_WILL_BLOCK | FD_WANT_FAST_WRITE | FD_WANT_SINGLE_WRITE);
if (events[i].portev_events & POLLRDNORM)
mask &= ~FD_READ_WILL_BLOCK;
// reinsert port for next time around, pretending to be one-shot for writes
SetEventMask(ev, mask);
port_associate(EngineHandle, PORT_SOURCE_FD, fd, mask_to_events(mask), eh);
if (events[i].portev_events & POLLRDNORM)
{
ReadEvents++;
eh->HandleEvent(EVENT_READ);
}
if (events[i].portev_events & POLLWRNORM)
{
WriteEvents++;
eh->HandleEvent(EVENT_WRITE);
}
}
}
default:
break;
}
}
return i;
}
std::string PortsEngine::GetName()
{
return "ports";
}
SocketEngine* CreateSocketEngine()
{
return new PortsEngine;
}
|
