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@try {
struct kevent event;
#ifdef HAVE_KQUEUE1
if ((_kernelQueue = kqueue1(O_CLOEXEC)) == -1)
@throw [OFInitializationFailedException
exceptionWithClass: [self class]];
#else
int flags;
if ((_kernelQueue = kqueue()) == -1)
@throw [OFInitializationFailedException
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]];
} @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.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.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.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.filter = EVFILT_WRITE;
event.flags = EV_DELETE;
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
}
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@try {
struct kevent event;
#ifdef HAVE_KQUEUE1
if ((_kernelQueue = kqueue1(O_CLOEXEC)) == -1)
@throw [OFInitializationFailedException
exceptionWithClass: self.class];
#else
int flags;
if ((_kernelQueue = kqueue()) == -1)
@throw [OFInitializationFailedException
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];
} @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.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.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.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.filter = EVFILT_WRITE;
event.flags = EV_DELETE;
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
}
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