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
|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2009 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 "threadengines/threadengine_pthread.h"
#include <pthread.h>
#include <signal.h>
#include <fcntl.h>
ThreadEngine::ThreadEngine(InspIRCd* Instance)
{
}
static void* entry_point(void* parameter)
{
/* Recommended by nenolod, signal safety on a per-thread basis */
sigset_t set;
sigemptyset(&set);
sigaddset(&set, SIGPIPE);
pthread_sigmask(SIG_BLOCK, &set, NULL);
Thread* pt = static_cast<Thread*>(parameter);
pt->Run();
return parameter;
}
void ThreadEngine::Start(Thread* thread)
{
ThreadData* data = new ThreadData;
thread->state = data;
if (pthread_create(&data->pthread_id, NULL, entry_point, thread) != 0)
{
thread->state = NULL;
delete data;
throw CoreException("Unable to create new thread: " + std::string(strerror(errno)));
}
}
ThreadEngine::~ThreadEngine()
{
}
void ThreadData::FreeThread(Thread* thread)
{
thread->SetExitFlag();
pthread_join(pthread_id, NULL);
}
#ifdef HAS_EVENTFD
#include <sys/eventfd.h>
class ThreadSignalSocket : public BufferedSocket
{
SocketThread* parent;
public:
ThreadSignalSocket(SocketThread* p, InspIRCd* SI, int newfd) :
BufferedSocket(SI, newfd, const_cast<char*>("0.0.0.0")), parent(p) {}
~ThreadSignalSocket()
{
}
void Notify()
{
eventfd_write(fd, 1);
}
virtual bool OnDataReady()
{
eventfd_t data;
if (eventfd_read(fd, &data))
return false;
parent->OnNotify();
return true;
}
};
SocketThread::SocketThread(InspIRCd* SI)
{
int fd = eventfd(0, O_NONBLOCK);
if (fd < 0)
throw new CoreException("Could not create pipe " + std::string(strerror(errno)));
signal.sock = new ThreadSignalSocket(this, SI, fd);
}
#else
class ThreadSignalSocket : public BufferedSocket
{
SocketThread* parent;
int send_fd;
public:
ThreadSignalSocket(SocketThread* p, InspIRCd* SI, int recvfd, int sendfd) :
BufferedSocket(SI, recvfd, const_cast<char*>("0.0.0.0")), parent(p), send_fd(sendfd) {}
~ThreadSignalSocket()
{
close(send_fd);
}
void Notify()
{
char dummy = '*';
write(send_fd, &dummy, 1);
}
virtual bool OnDataReady()
{
char data;
if (read(this->fd, &data, 1) <= 0)
return false;
parent->OnNotify();
return true;
}
};
SocketThread::SocketThread(InspIRCd* SI)
{
int fds[2];
if (pipe(fds))
throw new CoreException("Could not create pipe " + std::string(strerror(errno)));
signal.sock = new ThreadSignalSocket(this, SI, fds[0], fds[1]);
}
#endif
void SocketThread::NotifyParent()
{
signal.sock->Notify();
}
SocketThread::~SocketThread()
{
}
|
