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#import "OFDictionary.h"
#import "OFDataArray.h"
#import "OFNumber.h"
#import "OFAutoreleasePool.h"
#import "OFOutOfRangeException.h"
enum {
QUEUE_ADD = 0,
QUEUE_REMOVE = 1,
QUEUE_READ = 0,
QUEUE_WRITE = 2
};
FDToStream = [[OFMutableDictionary alloc] init];
[FDToStream release];
int fileDescriptor = [stream fileDescriptor];
BOOL found = NO;
for (i = 0; i < count; i++) {
if (FDsCArray[i].fd == fileDescriptor) {
FDsCArray[i].events |= events;
found = YES;
}
}
if (!found) {
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
struct pollfd p = { fileDescriptor, events | POLLERR, 0 };
[FDToStream setObject: stream
forKey: [OFNumber numberWithInt:
fileDescriptor]];
[pool release];
OFAutoreleasePool *pool;
if ((FDsCArray[i].events & ~POLLERR) != 0)
return;
pool = [[OFAutoreleasePool alloc] init];
[FDToStream removeObjectForKey:
[OFNumber numberWithInt: fileDescriptor]];
[pool release];
}
}
}
- (void)_processQueue
{
@synchronized (queue) {
OFStream **queueCArray = [queue cArray];
OFNumber **queueInfoCArray = [queueInfo cArray];
size_t i, count = [queue count];
for (i = 0; i < count; i++) {
switch ([queueInfoCArray[i] intValue]) {
case QUEUE_ADD | QUEUE_READ:
[readStreams addObject: queueCArray[i]];
[self _addStream: queueCArray[i]
withEvents: POLLIN];
break;
case QUEUE_ADD | QUEUE_WRITE:
[writeStreams addObject: queueCArray[i]];
[self _addStream: queueCArray[i]
withEvents: POLLOUT];
break;
case QUEUE_REMOVE | QUEUE_READ:
[readStreams removeObjectIdenticalTo:
queueCArray[i]];
[self _removeStream: queueCArray[i]
withEvents: POLLIN];
break;
case QUEUE_REMOVE | QUEUE_WRITE:
[writeStreams removeObjectIdenticalTo:
queueCArray[i]];
[self _removeStream: queueCArray[i]
withEvents: POLLOUT];
break;
default:
assert(0);
}
}
[queue removeNObjects: count];
[queueInfo removeNObjects: count];
}
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#import "OFDictionary.h"
#import "OFDataArray.h"
#import "OFNumber.h"
#import "OFAutoreleasePool.h"
#import "OFOutOfRangeException.h"
@implementation OFStreamObserver_poll
- init
{
self = [super init];
@try {
struct pollfd p = { 0, POLLIN, 0 };
FDs = [[OFDataArray alloc] initWithItemSize:
sizeof(struct pollfd)];
p.fd = cancelFD[0];
[FDs addItem: &p];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[FDs release];
[super dealloc];
}
- (void)_addStream: (OFStream*)stream
withEvents: (short)events
{
struct pollfd *FDsCArray = [FDs cArray];
size_t i, count = [FDs count];
int fd = [stream fileDescriptor];
BOOL found = NO;
for (i = 0; i < count; i++) {
if (FDsCArray[i].fd == fd) {
FDsCArray[i].events |= events;
found = YES;
break;
}
}
if (!found) {
struct pollfd p = { fd, events | POLLERR, 0 };
[FDs addItem: &p];
}
}
- (void)_removeStream: (OFStream*)stream
withEvents: (short)events
{
struct pollfd *FDsCArray = [FDs cArray];
size_t i, nFDs = [FDs count];
int fileDescriptor = [stream fileDescriptor];
for (i = 0; i < nFDs; i++) {
if (FDsCArray[i].fd == fileDescriptor) {
FDsCArray[i].events &= ~events;
if ((FDsCArray[i].events & ~POLLERR) == 0)
[FDs removeItemAtIndex: i];
break;
}
}
}
- (void)_addStreamToObserveForReading: (OFStream*)stream
{
[self _addStream: stream
withEvents: POLLIN];
}
- (void)_addStreamToObserveForWriting: (OFStream*)stream
{
[self _addStream: stream
withEvents: POLLOUT];
}
- (void)_removeStreamToObserveForReading: (OFStream*)stream
{
[self _removeStream: stream
withEvents: POLLIN];
}
- (void)_removeStreamToObserveForWriting: (OFStream*)stream
{
[self _removeStream: stream
withEvents: POLLOUT];
}
- (BOOL)observeWithTimeout: (int)timeout
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
struct pollfd *FDsCArray;
size_t i, nFDs;
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@throw [OFOutOfRangeException newWithClass: isa];
#endif
if (poll(FDsCArray, (nfds_t)nFDs, timeout) < 1)
return NO;
for (i = 0; i < nFDs; i++) {
OFNumber *num;
OFStream *stream;
num = [OFNumber numberWithInt: FDsCArray[i].fd];
stream = [FDToStream objectForKey: num];
[delegate streamDidBecomeReadyForReading: stream];
num = [OFNumber numberWithInt: FDsCArray[i].fd];
stream = [FDToStream objectForKey: num];
[delegate streamDidBecomeReadyForReading: stream];
num = [OFNumber numberWithInt: FDsCArray[i].fd];
stream = [FDToStream objectForKey: num];
[delegate streamDidReceiveException: stream];
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@throw [OFOutOfRangeException newWithClass: isa];
#endif
if (poll(FDsCArray, (nfds_t)nFDs, timeout) < 1)
return NO;
for (i = 0; i < nFDs; i++) {
if (FDsCArray[i].revents & POLLIN) {
if (FDsCArray[i].fd == cancelFD[0]) {
char buffer;
assert(read(cancelFD[0], &buffer, 1) > 0);
FDsCArray[i].revents = 0;
continue;
}
[delegate streamDidBecomeReadyForReading:
FDToStream[FDsCArray[i].fd]];
[pool releaseObjects];
}
if (FDsCArray[i].revents & POLLOUT) {
[delegate streamDidBecomeReadyForReading:
FDToStream[FDsCArray[i].fd]];
[pool releaseObjects];
}
if (FDsCArray[i].revents & POLLERR) {
[delegate streamDidReceiveException:
FDToStream[FDsCArray[i].fd]];
[pool releaseObjects];
}
FDsCArray[i].revents = 0;
}
[pool release];
return YES;
}
@end
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