//============================================================================
// QP/C Real-Time Event Framework (RTEF)
//
// 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
//
// This 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>
//============================================================================
#ifndef QK_H_
#define QK_H_

//============================================================================

typedef uint_fast8_t QSchedStatus;

//----------------------------------------------------------------------------
//! @class QK
typedef struct {
    QPSet readySet;        //!< @private @memberof QK
    uint8_t actPrio;       //!< @private @memberof QK
    uint8_t nextPrio;      //!< @private @memberof QK
    uint8_t actThre;       //!< @private @memberof QK
    uint8_t lockCeil;      //!< @private @memberof QK
    uint8_t intNest;       //!< @private @memberof QK
} QK;

//! @static @private @memberof QK
uint_fast8_t QK_sched_(void);

//! @static @private @memberof QK
uint_fast8_t QK_sched_act_(
    QActive const * const act,
    uint_fast8_t const pthre_in);

//! @static @private @memberof QK
void QK_activate_(void);

//! @static @public @memberof QK
QSchedStatus QK_schedLock(uint8_t const ceiling);

//! @static @public @memberof QK
void QK_schedUnlock(QSchedStatus const prevCeil);

//! @static @public @memberof QK
void QK_onIdle(void);

//! @static @private @memberof QK
extern QK QK_priv_;

//============================================================================
// interface used only for internal implementation, but not in applications

#ifdef QP_IMPL
//! @cond INTERNAL

// scheduler locking for QK...
#define QF_SCHED_STAT_ QSchedStatus lockStat_;
#define QF_SCHED_LOCK_(ceil_) do { \
    if (QK_ISR_CONTEXT_()) { \
        lockStat_ = 0xFFU; \
    } else { \
        lockStat_ = QK_schedLock((ceil_)); \
    } \
} while (false)

#define QF_SCHED_UNLOCK_() do { \
    if (lockStat_ != 0xFFU) { \
        QK_schedUnlock(lockStat_); \
    } \
} while (false)

// QActive event queue customization for QK...
#define QACTIVE_EQUEUE_WAIT_(me_) ((void)0)
#define QACTIVE_EQUEUE_SIGNAL_(me_) do { \
    QPSet_insert(&QK_priv_.readySet, (uint_fast8_t)(me_)->prio); \
    if (!QK_ISR_CONTEXT_()) { \
        if (QK_sched_() != 0U) { \
            QK_activate_(); \
        } \
    } \
} while (false)

// QMPool operations
#define QF_EPOOL_TYPE_  QMPool
#define QF_EPOOL_INIT_(p_, poolSto_, poolSize_, evtSize_) \
    (QMPool_init(&(p_), (poolSto_), (poolSize_), (evtSize_)))
#define QF_EPOOL_EVENT_SIZE_(p_)  ((uint16_t)(p_).blockSize)
#define QF_EPOOL_GET_(p_, e_, m_, qsId_) \
    ((e_) = (QEvt *)QMPool_get(&(p_), (m_), (qsId_)))
#define QF_EPOOL_PUT_(p_, e_, qsId_) (QMPool_put(&(p_), (e_), (qsId_)))
#define QF_EPOOL_USE_(ePool_)   (QMPool_getUse(ePool_))
#define QF_EPOOL_FREE_(ePool_)  ((ePool_)->nFree)
#define QF_EPOOL_MIN_(ePool_)   ((ePool_)->nMin)

//! @endcond
#endif // QP_IMPL

#endif // QK_H_