Differences From Artifact [bba062bb20]:
- File src/OFKqueueKernelEventObserver.m — part of check-in [c7f0229795] at 2020-01-02 01:51:34 on branch trunk — Update copyright (user: js, size: 5185) [annotate] [blame] [check-ins using]
To Artifact [e2ae904e52]:
- File
src/OFKqueueKernelEventObserver.m
— part of check-in
[24eff635db]
at
2020-01-07 20:28:41
on branch trunk
— OFKernelEventObserver: Remove queueing of actions
This removes the ability to let a thread add or remove objects for
another thread. This features wasn't used at all, but caused significant
problems with kqueue and epoll, as this often resulted in removing a
file descriptor after it had already been closed. (user: js, size: 5020) [annotate] [blame] [check-ins using]
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27 28 29 30 31 32 33 | #include <sys/types.h> #include <sys/event.h> #include <sys/time.h> #import "OFKqueueKernelEventObserver.h" #import "OFArray.h" | < < < < < | 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | #include <sys/types.h> #include <sys/event.h> #include <sys/time.h> #import "OFKqueueKernelEventObserver.h" #import "OFArray.h" #import "OFInitializationFailedException.h" #import "OFObserveFailedException.h" #import "OFOutOfRangeException.h" #define EVENTLIST_SIZE 64 |
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82 83 84 85 86 87 88 |
- (void)dealloc
{
close(_kernelQueue);
[super dealloc];
}
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- (void)dealloc
{
close(_kernelQueue);
[super dealloc];
}
- (void)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)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)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)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];
}
- (void)observeForTimeInterval: (of_time_interval_t)timeInterval
{
struct timespec timeout;
struct kevent eventList[EVENTLIST_SIZE];
int events;
if ([self of_processReadBuffers])
return;
timeout.tv_sec = (time_t)timeInterval;
timeout.tv_nsec = (timeInterval - timeout.tv_sec) * 1000000000;
events = kevent(_kernelQueue, NULL, 0, eventList, EVENTLIST_SIZE,
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