103 lines
2.5 KiB
C++
103 lines
2.5 KiB
C++
#pragma once
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#ifndef _NB_EVENTS
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#define _NB_EVENTS
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#include <atomic>
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#include <stdexcept>
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#include <queue>
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#include <array>
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#include <memory>
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#include <mutex>
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#include <string>
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using state_register = std::atomic<uint64_t>;
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namespace NB {
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extern std::invalid_argument null_mask_error;
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void NULL_FUNC();
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class NBEvents {
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friend class NBEventListener;
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public:
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NBEvents(const uint64_t, void (*initFunc)() = NULL_FUNC, const char* initName="");
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NBEvents(const uint64_t, const char* initName="");
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NBEvents(const NBEvents&);
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NBEvents& operator=(const NBEvents&);
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~NBEvents();
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const std::string getName() const;
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const uint64_t getMask() const;
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void setMask(const uint64_t);
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void setName(const char*);
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void setFunc(void (*newFunc)());
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virtual const uint64_t check(const uint64_t) const = 0;
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virtual NBEvents* clone() const = 0;
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protected:
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uint64_t mask = 0x0;
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void (*func)() = nullptr;
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std::string name = "";
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};
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class NBEventBasic : public NBEvents {
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friend class NBEventListener;
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public:
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using NBEvents::NBEvents;
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NBEventBasic* clone() const override;
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const uint64_t check(const uint64_t) const override;
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};
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class NBEventState : public NBEvents {
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friend class NBEventListener;
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public:
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using NBEvents::NBEvents;
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NBEventState* clone() const override;
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const uint64_t check(const uint64_t) const override;
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};
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enum NBStateChangeType : uint8_t {
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STATE_RAISE, STATE_DROP, STATE_SET
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};
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struct NBStateChange {
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uint8_t type;
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uint64_t mask;
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};
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class NBEventListener {
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public:
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NBEventListener(NBEvents**, uint16_t, const uint64_t initState=(uint64_t)0x0, state_register* initStatePtr=nullptr);
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template<size_t SIZE>
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NBEventListener(std::array<NBEvents*, SIZE> eventArray, const uint64_t initState=(uint64_t)0x0, state_register* initStatePtr=nullptr)
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: NBEventListener(eventArray.data(), eventArray.size(), initState, initStatePtr) {}
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state_register* getStatePtr() const;
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const uint64_t getState() const;
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void raiseFlags(const uint64_t);
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void raiseFlags(const NBEvents&);
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void dropFlags(const uint64_t);
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void dropFlags(const NBEvents&);
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const bool snoop(const uint64_t) const;
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const bool snoop(const NBEvents&) const;
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void listen();
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void listen(const NBEvents&);
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protected:
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void _setState(const uint64_t);
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NBEvents** eventList;
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uint16_t numEvents;
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state_register* state;
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std::mutex bufferLock;
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std::queue<NBStateChange> stateBuffer;
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};
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};
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#endif |