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[/] [riscv_vhdl/] [trunk/] [debugger/] [src/] [socsim_plugin/] [fifo.h] - Blame information for rev 4

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1 4 sergeykhbr 
/**
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 * @file
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 * @copyright  Copyright 2016 GNSS Sensor Ltd. All right reserved.
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 * @author     Sergey Khabarov - sergeykhbr@gmail.com
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 * @brief          FIFO implementation.
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 */
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#ifndef __DEBUGGER_FIFO_H__
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#define __DEBUGGER_FIFO_H__
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#include <inttypes.h>
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namespace debugger {
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template<class T> class TFifo {
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public:
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    TFifo(int sz) {
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        arr_ = new T[size_ = sz];
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        prd_ = &arr_[0];
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        pwr_ = &arr_[1];
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    }
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    ~TFifo() {
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        delete [] arr_;
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    }
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    bool isFull() {
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        return pwr_ == prd_;
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    }
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    bool isEmpty() {
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        if (pwr_ == (prd_ + 1)) {
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            return true;
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        }
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        if ((prd_ - pwr_ + 1) == size_) {
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            return true;
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        }
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        return false;
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    }
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    void get(T *out) {
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        if (isEmpty()) {
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            return;
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        }
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        if (prd_ >= &arr_[size_ - 1]) {
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            *out = arr_[0];
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            prd_ = arr_;
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        } else {
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            *out = prd_[1];
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            prd_++;
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        }
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    }
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    void put(T *in) {
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        if (isFull()) {
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            return;
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        }
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        *pwr_ = *in;
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        if (pwr_ >= &arr_[size_ - 1]) {
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            pwr_ = arr_;
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        } else {
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            pwr_++;
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        }
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    }
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private:
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    T *arr_;
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    T *prd_;
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    T *pwr_;
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    int size_;
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};
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}  // namespace debugger
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#endif  // __DEBUGGER_FIFO_H__

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