1. tms-old
  2. beam
  3. libBeam
  4. BEvent.h
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/*******************************************************************************
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* BEvent.h Event class * T.Barnaby, BEAM Ltd, 2005-07-08 * Copyright (c) 2005 All Right Reserved, Beam Ltd, http://www.beam.ltd.uk
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******************************************************************************* */ #ifndef BEvent_H #define BEvent_H 1
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#include <BTypes.h> #include <BQueue.h>
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enum BEventType { BEventTypeNone = 0 };
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class BEvent { public:
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BEvent(BUInt32 type = BEventTypeNone, BUInt32 arg = 0);
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BUInt32 type(); BUInt32 arg();
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private:
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BUInt32 otype; ///< The events type BUInt32 oarg; ///< The events argument
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};
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/// \brief This class provides an interface for sending simple integer events via a BQueue. typedef BQueue<BEvent> BEventQueue;
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/// \brief This class provides an interface for sending simple integer events via a pipe file descriptor
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class BEventPipe { public: BEventPipe(); ~BEventPipe();
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void clear(); ///< Clear events pending int getFd();
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BUInt writeAvailable() const; BError write(const BEvent& event, BTimeout timeout = BTimeoutForever); ///< Append an item onto the queue
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BUInt readAvailable() const; BError read(BEvent& event, BTimeout timeout = BTimeoutForever); ///< Get an item from the queue
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private: int ofds[2]; ///< File descriptors for pipe }; #endif