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
|
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
|
-
+
-
+
-
+
-
+
-
+
-
+
-
+
|
@try {
struct kevent event;
#ifdef HAVE_KQUEUE1
if ((_kernelQueue = kqueue1(O_CLOEXEC)) == -1)
@throw [OFInitializationFailedException
exceptionWithClass: [self class]];
exceptionWithClass: self.class];
#else
int flags;
if ((_kernelQueue = kqueue()) == -1)
@throw [OFInitializationFailedException
exceptionWithClass: [self class]];
exceptionWithClass: self.class];
if ((flags = fcntl(_kernelQueue, F_GETFD, 0)) != -1)
fcntl(_kernelQueue, F_SETFD, flags | FD_CLOEXEC);
#endif
EV_SET(&event, _cancelFD[0], EVFILT_READ, EV_ADD, 0, 0, 0);
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFInitializationFailedException
exceptionWithClass: [self class]];
exceptionWithClass: self.class];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
close(_kernelQueue);
[super dealloc];
}
- (void)of_addObjectForReading: (id <OFReadyForReadingObserving>)object
{
struct kevent event;
memset(&event, 0, sizeof(event));
event.ident = [object fileDescriptorForReading];
event.ident = object.fileDescriptorForReading;
event.filter = EVFILT_READ;
event.flags = EV_ADD;
#ifndef OF_NETBSD
event.udata = object;
#else
event.udata = (intptr_t)object;
#endif
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
}
- (void)of_addObjectForWriting: (id <OFReadyForWritingObserving>)object
{
struct kevent event;
memset(&event, 0, sizeof(event));
event.ident = [object fileDescriptorForWriting];
event.ident = object.fileDescriptorForWriting;
event.filter = EVFILT_WRITE;
event.flags = EV_ADD;
#ifndef OF_NETBSD
event.udata = object;
#else
event.udata = (intptr_t)object;
#endif
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
}
- (void)of_removeObjectForReading: (id <OFReadyForReadingObserving>)object
{
struct kevent event;
memset(&event, 0, sizeof(event));
event.ident = [object fileDescriptorForReading];
event.ident = object.fileDescriptorForReading;
event.filter = EVFILT_READ;
event.flags = EV_DELETE;
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
}
- (void)of_removeObjectForWriting: (id <OFReadyForWritingObserving>)object
{
struct kevent event;
memset(&event, 0, sizeof(event));
event.ident = [object fileDescriptorForWriting];
event.ident = object.fileDescriptorForWriting;
event.filter = EVFILT_WRITE;
event.flags = EV_DELETE;
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
}
|