qmpool.hpp

Go to the documentation of this file.

//$file${include::qmpool.hpp} vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
//
// Model: qpcpp.qm
// File:  ${include::qmpool.hpp}
//
// This code has been generated by QM 7.0.0 <www.state-machine.com/qm>.
// DO NOT EDIT THIS FILE MANUALLY. All your changes will be lost.
//
// Copyright (C) 2005 Quantum Leaps, LLC. All rights reserved.
//
//                    Q u a n t u m  L e a P s
//                    ------------------------
//                    Modern Embedded Software
//
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-QL-commercial
//
// The QP/C++ software is dual-licensed under the terms of the open-source
// GNU General Public License (GPL) or under the terms of one of the closed-
// source Quantum Leaps commercial licenses.
//
// Redistributions in source code must retain this top-level comment block.
// Plagiarizing this software to sidestep the license obligations is illegal.
//
// NOTE:
// The GPL does NOT permit the incorporation of this code into proprietary
// programs. Please contact Quantum Leaps for commercial licensing options,
// which expressly supersede the GPL and are designed explicitly for
// closed-source distribution.
//
// Quantum Leaps contact information:
// <www.state-machine.com/licensing>
// <info@state-machine.com>
//
//$endhead${include::qmpool.hpp} ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
#ifndef QMPOOL_HPP_
#define QMPOOL_HPP_
 
#ifndef QF_MPOOL_SIZ_SIZE
    #define QF_MPOOL_SIZ_SIZE 2U
#endif
#ifndef QF_MPOOL_CTR_SIZE
    #define QF_MPOOL_CTR_SIZE 2U
#endif
 
namespace QP {
 
#if (QF_MPOOL_SIZ_SIZE == 1U)
    using QMPoolSize = std::uint8_t;
#elif (QF_MPOOL_SIZ_SIZE == 2U)
    using QMPoolSize = std::uint16_t;
#elif (QF_MPOOL_SIZ_SIZE == 4U)
    using QMPoolSize = std::uint32_t;
#else
    #error "QF_MPOOL_SIZ_SIZE defined incorrectly, expected 1U, 2U, or 4U"
#endif
 
#if (QF_MPOOL_CTR_SIZE == 1U)
    using QMPoolCtr = std::uint8_t;
#elif (QF_MPOOL_CTR_SIZE == 2U)
    using QMPoolCtr = std::uint16_t;
#elif (QF_MPOOL_CTR_SIZE == 4U)
    using QMPoolCtr = std::uint32_t;
#else
    #error "QF_MPOOL_CTR_SIZE defined incorrectly, expected 1U, 2U, or 4U"
#endif
 
} // namespace QP
 
#define QF_MPOOL_EL(evType_) struct { \
    QP::QFreeBlock sto_[((sizeof(evType_) - 1U) / (2U * sizeof(void *))) + 1U]; \
}
 
//$declare${QF::QFreeBlock} vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
namespace QP {
 
//${QF::QFreeBlock} ..........................................................
class QFreeBlock {
private:
    QFreeBlock * m_next;
 
#ifndef Q_UNSAFE
    std::uintptr_t m_next_dis;
#endif // ndef Q_UNSAFE
    friend class QMPool;
}; // class QFreeBlock
 
} // namespace QP
//$enddecl${QF::QFreeBlock} ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
//$declare${QF::QMPool} vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
namespace QP {
 
//${QF::QMPool} ..............................................................
class QMPool {
private:
    QFreeBlock * m_start;
    QFreeBlock * m_end;
    QFreeBlock * volatile m_free_head;
    QMPoolSize m_blockSize;
    QMPoolCtr m_nTot;
    QMPoolCtr volatile m_nFree;
 
#ifndef Q_UNSAFE
    QMPoolCtr m_nMin;
#endif // ndef Q_UNSAFE
 
#ifndef Q_UNSAFE
    std::uintptr_t m_free_head_dis;
#endif // ndef Q_UNSAFE
 
#ifndef Q_UNSAFE
    QMPoolCtr m_nFree_dis;
#endif // ndef Q_UNSAFE
 
public:
    QMPool()
      : m_start(nullptr),
        m_end(nullptr),
        m_free_head(nullptr),
        m_blockSize(0U),
        m_nTot(0U),
        m_nFree(0U)
    #ifndef Q_UNSAFE
       ,m_nMin(0U),
        m_free_head_dis(static_cast<std::uintptr_t>(~0U)),
        m_nFree_dis(static_cast<QEQueueCtr>(~0U))
    #endif
    {}
    void init(
        void * const poolSto,
        std::uint_fast32_t const poolSize,
        std::uint_fast16_t const blockSize) noexcept;
    void * get(
        std::uint_fast16_t const margin,
        std::uint_fast8_t const qsId) noexcept;
    void put(
        void * const block,
        std::uint_fast8_t const qsId) noexcept;
    QMPoolSize getBlockSize() const noexcept;
    QMPoolCtr getNMin() const noexcept {
        #ifndef Q_UNSAFE
        return m_nMin;
        #else
        return 0U;
        #endif
    }
    QMPoolCtr getNFree() const noexcept {
        return m_nFree;
    }
 
private:
    QMPool(QEQueue const & other) = delete;
    QMPool & operator=(QMPool const & other) = delete;
 
public:
 
#ifdef QF_ISR_API
    void * getFromISR(
        std::uint_fast16_t const margin,
        std::uint_fast8_t const qsId) noexcept;
#endif // def QF_ISR_API
 
#ifdef QF_ISR_API
    void putFromISR(
        void * const b,
        std::uint_fast8_t const qsId) noexcept;
#endif // def QF_ISR_API
}; // class QMPool
 
} // namespace QP
//$enddecl${QF::QMPool} ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
#endif // QMPOOL_HPP_