--- /dev/null
+/************************
+A Cocoa DataStructuresFramework
+Copyright (C) 2002 Phillip Morelock in the United States
+http://www.phillipmorelock.com
+Other copyrights for this specific file as acknowledged herein.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*******************************/
+/*
+ * ArrayQueue.h
+ * Data Structures Framework
+/////SEE LICENSE FILE FOR LICENSE INFORMATION///////
+ *
+ */
+
+//////////
+//A fairly basic queue implementation that puts its data in an NSMutableArray
+//See the protocol definition for Queue to understand the contract.
+/////////
+
+#import <Foundation/Foundation.h>
+#import "Queue.h"
+
+@interface ArrayQueue : NSObject <Queue>
+{
+ NSMutableArray *theQ;
+
+ int backIndex; //where to place the next element
+ int frontIndex; //the current front of the queue
+ unsigned int qSize; //the current size
+ unsigned int arrsz;
+
+ id niller; //the marker for dead spots in the queue
+}
+
+- init;
+- initWithCapacity:(unsigned)capacity;
+
+//returns the size of the queue currently
+-(unsigned int) count;
+
+/**
+ * see protocol declaration for Queue
+ */
++(ArrayQueue *)queueWithArray:(NSArray *)array
+ ofOrder:(BOOL)direction;
+@end
\ No newline at end of file
--- /dev/null
+/************************
+A Cocoa DataStructuresFramework
+Copyright (C) 2002 Phillip Morelock in the United States
+http://www.phillipmorelock.com
+Other copyrights for this specific file as acknowledged herein.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*******************************/
+
+/////SEE LICENSE FILE FOR LICENSE INFORMATION///////
+
+#import "ArrayQueue.h"
+
+@implementation ArrayQueue
+
+- init
+{
+ return [self initWithCapacity:10];
+}
+
+-initWithCapacity:(unsigned)capacity
+{
+ self = [super init];
+
+ theQ = [[NSMutableArray alloc] initWithCapacity:capacity];
+
+ backIndex = -1;
+ frontIndex = 0;
+ qSize = 0;
+
+ niller = [[NSString stringWithFormat:@"nothing"] retain];
+
+ return self;
+}
+
+-(void) dealloc
+{
+ [theQ release];
+ [niller release];
+ [super dealloc];
+}
+
+-(BOOL) enqueue: (id)enqueuedObj
+{
+ if ( enqueuedObj == nil )
+ return NO;
+
+ ++backIndex;
+ [theQ insertObject:enqueuedObj atIndex:backIndex];
+ ++qSize;
+ return YES;
+}
+
+- dequeue
+{
+ id theObj;
+
+ if ( qSize < 1 )
+ return nil;
+
+ //decrement the size of the Q
+ --qSize;
+
+ //get it and retain it
+ theObj = [[theQ objectAtIndex:frontIndex] retain];
+ [theQ replaceObjectAtIndex:frontIndex withObject:niller];
+
+ //now increment front -- if we have large array and we've "caught up" with
+ //the back, then let's dealloc and start over.
+ ++frontIndex;
+ if (frontIndex > 25 && qSize < 0)
+ {
+ [self removeAllObjects];
+ }
+
+ return [theObj autorelease];
+}
+
+-(unsigned) count
+{
+ return qSize;
+}
+
+//simple BOOL for whether the queue is empty or not.
+-(BOOL) isEmpty
+{
+ if ( qSize < 1)
+ return YES;
+ else
+ return NO;
+}
+
+-(void) removeAllObjects
+{
+ if (theQ)
+ [theQ release];
+
+ theQ = [[NSMutableArray alloc] initWithCapacity:10];
+ backIndex = -1;
+ frontIndex = 0;
+ qSize = 0;
+
+}
+
++(ArrayQueue *)queueWithArray:(NSArray *)array
+ ofOrder:(BOOL)direction
+{
+ ArrayQueue *q;
+ int i,s;
+
+ q = [[ArrayQueue alloc] init];
+ s = [array count];
+ i = 0;
+
+ if (!array || !s)
+ {}//nada
+ else if (direction)//so the order to dequeue will be from 0...n
+ {
+ while (i < s)
+ [q enqueue: [array objectAtIndex: i++]];
+ }
+ else //order to dequeue will be n...0
+ {
+ while (s > i)
+ [q enqueue: [array objectAtIndex: --s]];
+ }
+
+ return [q autorelease];
+}
+
+
+@end
//
#import <Foundation/Foundation.h>
+#import "ITConveniences.h"
@class ITByteStream;
-@protocol ITByteStreamDelegate <NSObject>
--(oneway void)newDataAdded:(ITByteStream *)sender;
-@end
-
-@interface ITByteStream : NSObject {
+@interface ITByteStream : NSObject <Delegater> {
@public
NSMutableData *data;
@private
NSLock *lock;
- id <ITByteStreamDelegate> delegate;
+ id <DataReciever> delegate;
}
--(id) initWithStream:(ITByteStream*)stream delegate:(id <ITByteStreamDelegate>)d;
--(id) initWithDelegate:(id <ITByteStreamDelegate>)d;
--(void) setDelegate:(id <ITByteStreamDelegate>)d;
+-(id) initWithStream:(ITByteStream*)stream delegate:(id <DataReciever>)d;
-(int) availableDataLength;
-(NSData*) readDataOfLength:(int)length;
-(NSData*) readAllData;
[super dealloc];
}
--(void) setDelegate:(id <ITByteStreamDelegate>)d
+-setDelegate:(id <DataReciever>)d
{
+ id old = delegate;
[delegate release];
delegate = [d retain];
+ return old;
}
-(int) availableDataLength
//
#import <Foundation/Foundation.h>
+#import "ITByteStream.h"
+#import "ArrayQueue.h"
-
-@interface ITChunkedByteStream : NSObject {
-
+@interface ITChunkedByteStream : NSObject <Delegater> {
+ @public
+ ArrayQueue *q;
+ @private
+ NSLock *lock;
+ id delegate;
}
-
+-(BOOL)empty;
+-(NSData*) readData;
+-(oneway void) writeData:(in NSData*)data;
+-(oneway void) writeBytesNoCopy:(in char *)b len:(unsigned long)length;
+-(oneway void) writeBytes:(in char *)b len:(unsigned long)length;
@end
@implementation ITChunkedByteStream
+-initWithDelegate:(id)d
+{
+ if (self = [super init]) {
+ q = [[ArrayQueue alloc] init];
+ lock = [[NSLock alloc] init];
+ delegate = [d retain];
+ }
+ return self;
+}
+-(BOOL)empty
+{
+ BOOL a;
+ [lock lock];
+ a = [q isEmpty];
+ [lock unlock];
+ return a;
+}
+
+-(NSData*) readData
+{
+ NSData *d;
+ [lock lock];
+ d = (NSData*)[q dequeue];
+ [lock unlock];
+ return d;
+}
+
+-(oneway void) writeData:(in NSData*)d
+{
+ [lock lock];
+ [q enqueue:d];
+ [lock unlock];
+}
+
+-(oneway void) writeBytesNoCopy:(in char *)b len:(unsigned long)length
+{
+ [lock lock];
+ [q enqueue:[NSData dataWithBytesNoCopy:b length:length]];
+ [lock unlock];
+}
+
+-(oneway void) writeBytes:(in char *)b len:(unsigned long)length
+{
+ [lock lock];
+ [q enqueue:[NSData dataWithBytes:b length:length]];
+ [lock unlock];
+}
+-delegate {return delegate;}
+-setDelegate:(id)d {id old = delegate; [delegate release]; delegate = [d retain]; return old;}
@end
* @abstract Delegate methods for ITInetSocket
* @discussion ITInetSockets use these methods to communicate with their delegates
*/
-@protocol ITInetSocketDelegate <ITByteStreamDelegate>
+@protocol ITInetSocketDelegate <DataReciever>
/*!
* @method errorOccured:during:onSocket:
* @abstract Alerts the delegate of an error condition.
* @abstract An Internet socket class.
* @discussion ITInetSocket is an Internet socket class supporting IPv6 and Rendezvous.
*/
-@interface ITInetSocket : NSObject <ITByteStreamDelegate> {
+@interface ITInetSocket : NSObject <DataReciever> {
int sockfd;
int port;
int nc;