88 lines
3 KiB
C
88 lines
3 KiB
C
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/*
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*
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*/
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/*
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File: TCPListenerSocket.h
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Contains: A TCP listener socket. When a new connection comes in, the listener
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attempts to assign the new connection to a socket object and a Task
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object. Derived classes must implement a method of getting new
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Task & socket objects
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*/
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#ifndef __TCPLISTENERSOCKET_H__
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#define __TCPLISTENERSOCKET_H__
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#include "TCPSocket.h"
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#include "IdleTask.h"
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class TCPListenerSocket : public TCPSocket, public IdleTask
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{
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public:
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TCPListenerSocket() : TCPSocket(NULL, Socket::kNonBlockingSocketType), IdleTask(),
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fAddr(0), fPort(0), fOutOfDescriptors(false), fSleepBetweenAccepts(false) {this->SetTaskName("TCPListenerSocket");}
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virtual ~TCPListenerSocket() {}
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//
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// Send a TCPListenerObject a Kill event to delete it.
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//addr = listening address. port = listening port. Automatically
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//starts listening
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OS_Error Initialize(UInt32 addr, UInt16 port);
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//You can query the listener to see if it is failing to accept
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//connections because the OS is out of descriptors.
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Bool16 IsOutOfDescriptors() { return fOutOfDescriptors; }
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void SlowDown() { fSleepBetweenAccepts = true; }
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void RunNormal() { fSleepBetweenAccepts = false; }
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//derived object must implement a way of getting tasks & sockets to this object
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virtual Task* GetSessionTask(TCPSocket** outSocket) = 0;
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virtual SInt64 Run();
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private:
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enum
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{
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kTimeBetweenAcceptsInMsec = 1000, //UInt32
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kListenQueueLength = 128 //UInt32
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};
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virtual void ProcessEvent(int eventBits);
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OS_Error Listen(UInt32 queueLength);
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UInt32 fAddr;
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UInt16 fPort;
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Bool16 fOutOfDescriptors;
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Bool16 fSleepBetweenAccepts;
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};
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#endif // __TCPLISTENERSOCKET_H__
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