132 lines
3.6 KiB
C++
132 lines
3.6 KiB
C++
/*
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* REVISIONS:
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* xxxddMMMyy
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* sja09Dec92 - Poll method made public for Windows 3.1
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* pcy14Dec92 - ZERO changed to APCZERO
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* ajr08Mar93: added C_UNIX to single SINGLETHREADED
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* pcy21Apr93: OS2 FE merge
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* pcy14May93: Added Set(PTransactionGroup)
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* tje01Jun93: Moved SINGLETHREADED to cdefine.h
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* cad09Jul93: using new semaphores
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* cad03Sep93: made more methods virtual
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* cad08Sep93: Protected the event list
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* cad14Sep93: Cleaning up theState
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* cad17Nov93: publicized haslostcomm method
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* mwh18Nov93: changed EventID to INT
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* cad11Jan94: moved const/dest to .cxx
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* ajr16Feb94: Added default id to SubmitList.
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* ajr16Feb94: Added writeUpsOffFile() protected member function.
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* mwh05May94: #include file madness , part 2
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* srt24Oct96: Added an abort semaphore
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* tjg26Jan98: Added Stop method
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* tjg02Mar98: Removed Stop method (dead code)
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*/
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#ifndef _INC__CDEVICE_H
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#define _INC__CDEVICE_H
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_CLASSDEF(CommDevice)
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_CLASSDEF(PollLoop)
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#include "apc.h"
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#include "update.h"
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#include "thrdable.h"
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#include "apcsemnt.h"
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extern "C" {
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#include <time.h>
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}
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_CLASSDEF(Message)
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_CLASSDEF(ProtectedList)
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_CLASSDEF(ListIterator)
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_CLASSDEF(TransactionGroup)
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_CLASSDEF(Controller)
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_CLASSDEF(Protocol)
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_CLASSDEF(Stream)
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_CLASSDEF(MutexLock)
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_CLASSDEF(Thread)
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_CLASSDEF(List)
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_CLASSDEF(CommDevice)
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// Values for theState
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//
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#define NORMAL_STATE 0
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#define RETRYING 2
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#define COMM_STOPPED 3
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#define PAUSE_POLLING 4
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#define FOURSECONDS 4000
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class CommDevice : public UpdateObj
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{
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public:
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CommDevice(PController control);
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virtual ~CommDevice();
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PController GetController(VOID) {return theController;};
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PProtocol GetProtocol(VOID) {return theProtocol;};
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PStream GetPort(VOID) {return thePort;};
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INT HasLostComm(VOID) {return theLostCommFlag;};
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virtual INT Equal(RObj item) const;
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virtual INT RegisterEvent(INT event, PUpdateObj object);
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virtual INT UnregisterEvent(INT event, PUpdateObj object);
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virtual INT Initialize(VOID);
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virtual INT Set(INT pid, const PCHAR value);
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virtual INT Set(PTransactionGroup agroup);
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virtual INT Get(INT pid, PCHAR value);
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virtual INT Get(PTransactionGroup agroup);
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virtual INT Update(PEvent anEvent);
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virtual INT IsA() const {return COMMDEVICE;};
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virtual VOID OkToPoll(VOID);
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virtual INT Poll(VOID);
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protected:
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PApcSemaphore theAbortSem;
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PProtectedList thePollList;
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PListIterator thePollIterator;
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PTransactionGroup theCurrentTransaction;
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time_t pollStartTime;
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INT theSleepingFlag;
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INT thePollIsDone;
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PProtectedList theEventList;
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PListIterator theEventIterator;
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INT theState;
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PController theController;
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PProtocol theProtocol;
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PStream thePort;
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PMutexLock theAskLock;
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LONG thePollInterval;
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INT theLostCommFlag;
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PThread thePollThread;
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virtual INT CreatePort() = 0;
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virtual INT CreateProtocol() = 0;
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INT SubmitList(PList msglist,INT id=-1);
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INT HandleEvents();
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INT Retry();
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virtual INT AskUps(PMessage msg) = 0;
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virtual VOID StartPollThread();
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VOID Access();
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VOID Release();
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friend class PollLoop;
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};
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class PollLoop : public Threadable
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{
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public:
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PollLoop (PCommDevice aDevice);
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virtual ~PollLoop ();
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virtual VOID ThreadMain(VOID);
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protected:
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PCommDevice theDevice;
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};
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#endif
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