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@implementation OFKernelEventObserver_kqueue
- init
{
self = [super init];
@try {
#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
_changeList = [[OFDataArray alloc] initWithItemSize:
sizeof(struct kevent)];
_removedArray = [[OFMutableArray alloc] init];
[self OF_addFileDescriptorForReading: _cancelFD[0]];
- (void)OF_addFileDescriptorForReading: (int)fd
{
struct kevent event;
if ([_changeList count] >= INT_MAX)
@throw [OFOutOfRangeException exception];
EV_SET(&event, fd, EVFILT_READ, EV_ADD, 0, 0, 0);
- (void)OF_addFileDescriptorForWriting: (int)fd
{
struct kevent event;
if ([_changeList count] >= INT_MAX)
@throw [OFOutOfRangeException exception];
EV_SET(&event, fd, EVFILT_WRITE, EV_ADD, 0, 0, 0);
- (void)OF_removeFileDescriptorForReading: (int)fd
{
struct kevent event;
EV_SET(&event, fd, EVFILT_READ, EV_DELETE, 0, 0, 0);
[_changeList addItem: &event];
}
- (void)OF_removeFileDescriptorForWriting: (int)fd
{
struct kevent event;
EV_SET(&event, fd, EVFILT_WRITE, EV_DELETE, 0, 0, 0);
[_changeList addItem: &event];
}
- (bool)observeForTimeInterval: (of_time_interval_t)timeInterval
{
void *pool = objc_autoreleasePoolPush();
struct timespec timeout;
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@implementation OFKernelEventObserver_kqueue
- init
{
self = [super init];
@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
_changeList = [[OFDataArray alloc] initWithItemSize:
sizeof(struct kevent)];
EV_SET(&event, _cancelFD[0], EVFILT_READ, EV_ADD, 0, 0, 0);
[_changeList addItem: &event];
_removedArray = [[OFMutableArray alloc] init];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
close(_kernelQueue);
[_changeList release];
[_removedArray release];
[super dealloc];
}
- (void)OF_addObjectForReading: (id)object
{
struct kevent event;
if ([_changeList count] >= INT_MAX)
@throw [OFOutOfRangeException exception];
memset(&event, 0, sizeof(event));
event.ident = [object fileDescriptorForReading];
event.filter = EVFILT_READ;
event.flags = EV_ADD;
#ifndef __NetBSD__
event.udata = object;
#else
event.udata = (intptr_t)object;
#endif
[_changeList addItem: &event];
}
- (void)OF_addObjectForWriting: (id)object
{
struct kevent event;
if ([_changeList count] >= INT_MAX)
@throw [OFOutOfRangeException exception];
memset(&event, 0, sizeof(event));
event.ident = [object fileDescriptorForWriting];
event.filter = EVFILT_WRITE;
event.flags = EV_ADD;
#ifndef __NetBSD__
event.udata = object;
#else
event.udata = (intptr_t)object;
#endif
[_changeList addItem: &event];
}
- (void)OF_removeObjectForReading: (id)object
{
struct kevent event;
memset(&event, 0, sizeof(event));
event.ident = [object fileDescriptorForReading];
event.filter = EVFILT_READ;
event.flags = EV_DELETE;
[_changeList addItem: &event];
}
- (void)OF_removeObjectForWriting: (id)object
{
struct kevent event;
memset(&event, 0, sizeof(event));
event.ident = [object fileDescriptorForWriting];
event.filter = EVFILT_WRITE;
event.flags = EV_DELETE;
[_changeList addItem: &event];
}
- (bool)observeForTimeInterval: (of_time_interval_t)timeInterval
{
void *pool = objc_autoreleasePoolPush();
struct timespec timeout;
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pool = objc_autoreleasePoolPush();
switch (eventList[i].filter) {
case EVFILT_READ:
if ([_delegate respondsToSelector:
@selector(objectIsReadyForReading:)])
[_delegate objectIsReadyForReading:
_FDToObject[eventList[i].ident]];
break;
case EVFILT_WRITE:
if ([_delegate respondsToSelector:
@selector(objectIsReadyForWriting:)])
[_delegate objectIsReadyForWriting:
_FDToObject[eventList[i].ident]];
break;
default:
assert(0);
}
objc_autoreleasePoolPop(pool);
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pool = objc_autoreleasePoolPush();
switch (eventList[i].filter) {
case EVFILT_READ:
if ([_delegate respondsToSelector:
@selector(objectIsReadyForReading:)])
[_delegate objectIsReadyForReading:
(id)eventList[i].udata];
break;
case EVFILT_WRITE:
if ([_delegate respondsToSelector:
@selector(objectIsReadyForWriting:)])
[_delegate objectIsReadyForWriting:
(id)eventList[i].udata];
break;
default:
assert(0);
}
objc_autoreleasePoolPop(pool);
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