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#include <unistd.h>
#include <sys/epoll.h>
#import "OFKernelEventObserver.h"
#import "OFKernelEventObserver+Private.h"
#import "OFKernelEventObserver_epoll.h"
#import "OFArray.h"
#import "OFMapTable.h"
#import "OFNull.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif
#import "OFInitializationFailedException.h"
#import "OFObserveFailedException.h"
#define EVENTLIST_SIZE 64
static const of_map_table_functions_t mapFunctions = { NULL };
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[super dealloc];
}
- (void)OF_addObject: (id)object
fileDescriptor: (int)fd
events: (int)addEvents
objectsArray: (OFMutableArray*)objectsArray
{
intptr_t events;
events = (intptr_t)[_FDToEvents valueForKey: (void*)(intptr_t)fd];
if (events == 0) {
#ifdef OF_HAVE_THREADS
[_mutex lock];
@try {
#endif
struct epoll_event event;
intptr_t events;
memset(&event, 0, sizeof(event));
event.events = addEvents;
event.data.ptr = object;
if (epoll_ctl(_epfd, EPOLL_CTL_ADD, fd, &event) == -1)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: errno];
events = (intptr_t)[_FDToEvents
[_FDToEvents setValue: (void*)(intptr_t)addEvents
forKey: (void*)(intptr_t)fd];
valueForKey: (void*)(intptr_t)fd];
} else {
struct epoll_event event;
memset(&event, 0, sizeof(event));
event.events = (int)events | addEvents;
event.data.ptr = object;
[objectsArray addObject: object];
if (epoll_ctl(_epfd, EPOLL_CTL_MOD, fd, &event) == -1)
if (epoll_ctl(_epfd,
(events == 0 ? EPOLL_CTL_ADD : EPOLL_CTL_MOD),
fd, &event) == -1) {
[objectsArray removeObjectIdenticalTo: object];
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: errno];
}
[_FDToEvents setValue: (void*)(events | addEvents)
forKey: (void*)(intptr_t)fd];
#ifdef OF_HAVE_THREADS
} @finally {
[_mutex unlock];
}
#endif
}
- (void)OF_removeObject: (id)object
fileDescriptor: (int)fd
events: (int)removeEvents
objectsArray: (OFMutableArray*)objectsArray
{
#ifdef OF_HAVE_THREADS
[_mutex lock];
@try {
#endif
intptr_t events;
intptr_t events;
events = (intptr_t)[_FDToEvents valueForKey: (void*)(intptr_t)fd];
events &= ~removeEvents;
events = (intptr_t)[_FDToEvents
valueForKey: (void*)(intptr_t)fd];
events &= ~removeEvents;
if (events == 0) {
if (epoll_ctl(_epfd, EPOLL_CTL_DEL, fd, NULL) == -1)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: errno];
if (events == 0) {
if (epoll_ctl(_epfd, EPOLL_CTL_DEL, fd, NULL) == -1)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: errno];
[_FDToEvents removeValueForKey: (void*)(intptr_t)fd];
} else {
struct epoll_event event;
[_FDToEvents removeValueForKey: (void*)(intptr_t)fd];
} else {
struct epoll_event event;
memset(&event, 0, sizeof(event));
event.events = (int)events;
event.data.ptr = object;
memset(&event, 0, sizeof(event));
event.events = (int)events;
event.data.ptr = object;
if (epoll_ctl(_epfd, EPOLL_CTL_MOD, fd, &event) == -1)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: errno];
if (epoll_ctl(_epfd, EPOLL_CTL_MOD, fd, &event) == -1)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: errno];
[_FDToEvents setValue: (void*)events
forKey: (void*)(intptr_t)fd];
}
[_FDToEvents setValue: (void*)events
forKey: (void*)(intptr_t)fd];
}
[objectsArray removeObjectIdenticalTo: object];
#ifdef OF_HAVE_THREADS
} @finally {
[_mutex unlock];
}
#endif
}
- (void)addObjectForReading: (id <OFReadyForReadingObserving>)object
{
[self OF_addObject: object
fileDescriptor: [object fileDescriptorForReading]
events: EPOLLIN];
events: EPOLLIN
objectsArray: _readObjects];
}
- (void)addObjectForWriting: (id <OFReadyForWritingObserving>)object
{
[self OF_addObject: object
fileDescriptor: [object fileDescriptorForWriting]
events: EPOLLOUT];
events: EPOLLOUT
objectsArray: _writeObjects];
}
- (void)removeObjectForReading: (id <OFReadyForReadingObserving>)object
{
[self OF_removeObject: object
fileDescriptor: [object fileDescriptorForReading]
events: EPOLLIN];
events: EPOLLIN
objectsArray: _readObjects];
}
- (void)removeObjectForWriting: (id <OFReadyForWritingObserving>)object
{
[self OF_removeObject: object
fileDescriptor: [object fileDescriptorForWriting]
events: EPOLLOUT];
events: EPOLLOUT
objectsArray: _writeObjects];
}
- (void)observeForTimeInterval: (of_time_interval_t)timeInterval
{
OFNull *nullObject = [OFNull null];
void *pool = objc_autoreleasePoolPush();
struct epoll_event eventList[EVENTLIST_SIZE];
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