94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
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/*
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*
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* NOTES:
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*
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* REVISIONS:
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* ane12Jan93: made Threadable an updateable object
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* pcy04Mar93: spilt off from thread. thrdable is not OS specific.
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* rct17May93: added IsA() method
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* cad19May93: defined IsA() to default (tired of fixing children)
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* cad09Jul93: using new semaphores
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* cad07Oct93: Made methods virtual
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* rct16Nov93: Added single thread implementation
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* cad11Jan94: Changes for new process manager
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* ajr02May95: Need to stop carrying time in milliseconds
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*/
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#ifndef _THRDABLE_H
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#define _THRDABLE_H
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#include "_defs.h"
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_CLASSDEF(Threadable)
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#include "apc.h"
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#include "update.h"
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#include "semaphor.h"
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/* const LONG DEFAULT_SERVICE_PERIOD = 10000L; // Ten Seconds */
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/* const ULONG THREAD_EXIT_TIMEOUT = 1000L; */
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const LONG DEFAULT_SERVICE_PERIOD = 10; // Ten Seconds
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const ULONG THREAD_EXIT_TIMEOUT = 1; // one second;
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const INT MAX_THREAD_NAME = 32;
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class Threadable : public UpdateObj {
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protected:
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PSemaphore theResumeFlag;
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PSemaphore theExitSem;
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PSemaphore theExitDoneSem;
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CHAR theThreadName[MAX_THREAD_NAME+1];
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#ifdef SINGLETHREADED
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ULONG theServicePeriod;
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ULONG theLastPeriod;
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ULONG theNextPeriod;
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#endif
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INT ExitNow();
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INT DoneExiting();
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public:
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Threadable ();
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virtual ~Threadable ();
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virtual VOID ThreadMain () = 0;
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virtual VOID SetThreadName(PCHAR aName);
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virtual PCHAR GetThreadName(VOID);
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#ifdef SINGLETHREADED
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virtual ULONG GetServicePeriod() const;
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virtual VOID SetServicePeriod(ULONG period = DEFAULT_SERVICE_PERIOD);
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virtual ULONG GetLastPeriod(void);
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virtual VOID SetLastPeriod(ULONG period = 0L);
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virtual ULONG GetNextPeriod(void);
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virtual VOID SetNextPeriod(ULONG period = 0L);
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#endif
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virtual INT Wait () {return theResumeFlag->Wait();};
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virtual INT Release () {return theResumeFlag->Pulse();};
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virtual INT Exit();
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virtual INT ExitWait();
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#if (C_OS & C_NLM)
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virtual SLONG TimedWait(SLONG msDelay) { return theResumeFlag->TimedWait(msDelay); };
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#else
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virtual INT TimedWait(INT msDelay) { return theResumeFlag->TimedWait(msDelay); };
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#endif
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virtual INT Equal(RObj anObj) const { return ((PObj) this == &anObj); };
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virtual INT Reset();
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};
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#endif
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