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enum {
QUEUE_ADD = 0,
QUEUE_REMOVE = 1,
QUEUE_READ = 0,
QUEUE_WRITE = 2
};
@implementation OFStreamObserver
+ observer
{
return [[[self alloc] init] autorelease];
}
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enum {
QUEUE_ADD = 0,
QUEUE_REMOVE = 1,
QUEUE_READ = 0,
QUEUE_WRITE = 2
};
#define QUEUE_ACTION (QUEUE_ADD | QUEUE_REMOVE)
@implementation OFStreamObserver
+ observer
{
return [[[self alloc] init] autorelease];
}
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cancelAddrLen = sizeof(cancelAddr);
if (getsockname(cancelFD[0], (struct sockaddr*)&cancelAddr,
&cancelAddrLen))
@throw [OFInitializationFailedException
newWithClass: isa];
#endif
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
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cancelAddrLen = sizeof(cancelAddr);
if (getsockname(cancelFD[0], (struct sockaddr*)&cancelAddr,
&cancelAddrLen))
@throw [OFInitializationFailedException
newWithClass: isa];
#endif
maxFD = cancelFD[0];
FDToStream = [self allocMemoryForNItems: maxFD + 1
withSize: sizeof(OFStream*)];
FDToStream[cancelFD[0]] = nil;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
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#else
assert(sendto(cancelFD[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
sizeof(cancelAddr)) > 0);
#endif
[pool release];
}
- (void)observe
{
[self observeWithTimeout: -1];
}
- (BOOL)observeWithTimeout: (int)timeout
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#else
assert(sendto(cancelFD[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
sizeof(cancelAddr)) > 0);
#endif
[pool release];
}
- (void)_addStreamToObserveForReading: (OFStream*)strea;
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- (void)_addStreamToObserveForWriting: (OFStream*)stream
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- (void)_removeStreamToObserveForReading: (OFStream*)stream
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- (void)_removeStreamToObserveForWriting: (OFStream*)stream
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- (void)_processQueue
{
@synchronized (queue) {
OFStream **queueCArray = [queue cArray];
OFNumber **queueInfoCArray = [queueInfo cArray];
size_t i, count = [queue count];
for (i = 0; i < count; i++) {
int action = [queueInfoCArray[i] intValue];
if ((action & QUEUE_ACTION) == QUEUE_ADD) {
int fd = [queueCArray[i] fileDescriptor];
if (fd > maxFD) {
maxFD = fd;
FDToStream = [self
resizeMemory: FDToStream
toNItems: maxFD + 1
withSize: sizeof(OFStream*)];
}
FDToStream[fd] = queueCArray[i];
}
if ((action & QUEUE_ACTION) == QUEUE_REMOVE) {
int fd = [queueCArray[i] fileDescriptor];
/* FIXME: Maybe downsize? */
FDToStream[fd] = nil;
}
switch (action) {
case QUEUE_ADD | QUEUE_READ:
[readStreams addObject: queueCArray[i]];
[self _addStreamToObserveForReading:
queueCArray[i]];
break;
case QUEUE_ADD | QUEUE_WRITE:
[writeStreams addObject: queueCArray[i]];
[self _addStreamToObserveForWriting:
queueCArray[i]];
break;
case QUEUE_REMOVE | QUEUE_READ:
[readStreams removeObjectIdenticalTo:
queueCArray[i]];
[self _removeStreamToObserveForReading:
queueCArray[i]];
break;
case QUEUE_REMOVE | QUEUE_WRITE:
[writeStreams removeObjectIdenticalTo:
queueCArray[i]];
[self _removeStreamToObserveForWriting:
queueCArray[i]];
break;
default:
assert(0);
}
}
[queue removeNObjects: count];
[queueInfo removeNObjects: count];
}
}
- (void)observe
{
[self observeWithTimeout: -1];
}
- (BOOL)observeWithTimeout: (int)timeout
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