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qpcpp.qm
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<?xml version="1.0" encoding="UTF-8"?>
<model version="6.1.1" links="1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.state-machine.com/qm/qm.xsd">
<documentation>QP/C++ Real-Time Embedded Framework (RTEF)
The model is used to generate the whole QP/C++ source code.
Copyright (C) 2005 Quantum Leaps, LLC <state-machine.com>.
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 version 3 (or any later version), or alternatively,
under the terms of one of the closed source Quantum Leaps commercial
licenses.
The terms of the open source GNU General Public License version 3
can be found at: <www.gnu.org/licenses/gpl-3.0>
The terms of the closed source Quantum Leaps commercial licenses
can be found at: <www.state-machine.com/licensing>
Redistributions in source code must retain this copyright notice.
Plagiarizing this software to sidestep the license obligations is illegal.
Contact information:
<www.state-machine.com/licensing>
<info@state-machine.com></documentation>
<!--${qpcpp}-->
<framework name="qpcpp" license="LICENSES/LicenseRef-QL-dual.qlc"/>
<!--${glob-types}-->
<package name="glob-types" stereotype="0x00">
<!--${glob-types::int_t}-->
<attribute name="int_t" type="using" visibility="0x04" properties="0x00">
<code> = int;</code>
</attribute>
<!--${glob-types::enum_t}-->
<attribute name="enum_t" type="using" visibility="0x04" properties="0x00">
<code> = int;</code>
</attribute>
<!--${glob-types::float32_t}-->
<attribute name="float32_t" type="using" visibility="0x04" properties="0x00">
<code> = float;</code>
</attribute>
<!--${glob-types::float64_t}-->
<attribute name="float64_t" type="using" visibility="0x04" properties="0x00">
<code> = double;</code>
</attribute>
</package>
<!--${QEP}-->
<package name="QEP" stereotype="0x05" namespace="QP::">
<!--${QEP::versionStr[]}-->
<attribute name="versionStr[]" type="constexpr char const" visibility="0x04" properties="0x01">
<code>{QP_VERSION_STR};</code>
</attribute>
<!--${QEP::QSignal}-->
<attribute name="QSignal? (Q_SIGNAL_SIZE == 1U)" type="using" visibility="0x04" properties="0x00">
<code>= std::uint8_t;</code>
</attribute>
<!--${QEP::QSignal}-->
<attribute name="QSignal? (Q_SIGNAL_SIZE == 2U)" type="using" visibility="0x04" properties="0x00">
<code>= std::uint16_t;</code>
</attribute>
<!--${QEP::QSignal}-->
<attribute name="QSignal? (Q_SIGNAL_SIZE == 4U)" type="using" visibility="0x04" properties="0x00">
<code>= std::uint32_t;</code>
</attribute>
<!--${QEP::QEvt}-->
<class name="QEvt">
<!--${QEP::QEvt::sig}-->
<attribute name="sig" type="QSignal" visibility="0x00" properties="0x00"/>
<!--${QEP::QEvt::refCtr_}-->
<attribute name="refCtr_" type="std::uint8_t volatile" visibility="0x00" properties="0x00"/>
<!--${QEP::QEvt::evtTag_}-->
<attribute name="evtTag_" type="std::uint8_t" visibility="0x00" properties="0x00"/>
<!--${QEP::QEvt::MARKER}-->
<attribute name="MARKER" type="static constexpr std::uint8_t" visibility="0x04" properties="0x01">
<code> {0xE0U};</code>
</attribute>
<!--${QEP::QEvt::DynEvt}-->
<attribute name="DynEvt" type="enum" visibility="0x04" properties="0x00">
<code>: std::uint8_t { DYNAMIC };</code>
</attribute>
<!--${QEP::QEvt::QEvt}-->
<operation name="QEvt" type="explicit constexpr" visibility="0x00" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QEvt::QEvt::s}-->
<parameter name="s" type="QSignal const"/>
<code> : sig(s),
refCtr_(0U),
evtTag_(MARKER)</code>
</operation>
<!--${QEP::QEvt::QEvt}-->
<operation name="QEvt" type="" visibility="0x00" properties="0x00">
<specifiers>= delete</specifiers>
</operation>
<!--${QEP::QEvt::init}-->
<operation name="init" type="void" visibility="0x00" properties="0x02">
<specifiers>noexcept</specifiers>
<code>// no event parameters to initialize</code>
</operation>
<!--${QEP::QEvt::init}-->
<operation name="init" type="void" visibility="0x00" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QEvt::init::dummy}-->
<parameter name="dummy" type="DynEvt const"/>
<code>static_cast<void>(dummy);
// no event parameters to initialize</code>
</operation>
<!--${QEP::QEvt::verify_}-->
<operation name="verify_" type="bool" visibility="0x00" properties="0x03">
<specifiers>noexcept</specifiers>
<!--${QEP::QEvt::verify_::e}-->
<parameter name="e" type="QEvt const * const"/>
<code>return (e != nullptr)
&& ((e->evtTag_ & 0xF0U) == MARKER);</code>
</operation>
<!--${QEP::QEvt::getPoolNum_}-->
<operation name="getPoolNum_" type="std::uint_fast8_t" visibility="0x00" properties="0x02">
<specifiers>const noexcept</specifiers>
<code>return static_cast<std::uint8_t>(evtTag_) & 0x0FU;</code>
</operation>
</class>
<!--${QEP::QState}-->
<attribute name="QState" type="using" visibility="0x04" properties="0x00">
<code>= std::uint_fast8_t;</code>
</attribute>
<!--${QEP::QStateHandler}-->
<attribute name="QStateHandler" type="using" visibility="0x04" properties="0x00">
<code>= QState (*)(void * const me, QEvt const * const e);</code>
</attribute>
<!--${QEP::QActionHandler}-->
<attribute name="QActionHandler" type="using" visibility="0x04" properties="0x00">
<code>= QState (*)(void * const me);</code>
</attribute>
<!--${QEP::QXThread}-->
<attribute name="QXThread" type="class" visibility="0x04" properties="0x00">
<documentation>// forward declaration</documentation>
</attribute>
<!--${QEP::QXThreadHandler}-->
<attribute name="QXThreadHandler" type="using" visibility="0x04" properties="0x00">
<code>= void (*)(QXThread * const me);</code>
</attribute>
<!--${QEP::QMState}-->
<attribute name="QMState" type="struct" visibility="0x04" properties="0x00">
<code>{
QMState const * superstate;
QStateHandler const stateHandler;
QActionHandler const entryAction;
QActionHandler const exitAction;
QActionHandler const initAction;
};</code>
</attribute>
<!--${QEP::QMTranActTable}-->
<attribute name="QMTranActTable" type="struct" visibility="0x04" properties="0x00">
<code>{
QMState const * target;
QActionHandler const act[1];
};</code>
</attribute>
<!--${QEP::QAsmAttr}-->
<attribute name="QAsmAttr" type="union" visibility="0x04" properties="0x00">
<code>{
QStateHandler fun;
QActionHandler act;
QXThreadHandler thr;
QMState const *obj;
QMTranActTable const *tatbl;
#ifndef Q_UNSAFE
std::uintptr_t uint;
#endif
constexpr QAsmAttr() : fun(nullptr) {}
};</code>
</attribute>
<!--${QEP::Q_USER_SIG}-->
<attribute name="Q_USER_SIG" type="constexpr enum_t " visibility="0x04" properties="0x00">
<code>{4};</code>
</attribute>
<!--${QEP::QAsm}-->
<class name="QAsm">
<documentation>Abstract State Machine</documentation>
<!--${QEP::QAsm::m_state}-->
<attribute name="m_state" type="QAsmAttr" visibility="0x01" properties="0x00"/>
<!--${QEP::QAsm::m_temp}-->
<attribute name="m_temp" type="QAsmAttr" visibility="0x01" properties="0x00"/>
<!--${QEP::QAsm::QStateRet}-->
<attribute name="QStateRet" type="enum" visibility="0x04" properties="0x01">
<documentation>//! All possible return values from state-handlers
//! @note
//! The order is important for algorithmic correctness.</documentation>
<code> : QState {
// unhandled and need to "bubble up"
Q_RET_SUPER, //!< event passed to superstate to handle
Q_RET_SUPER_SUB, //!< event passed to submachine superstate
Q_RET_UNHANDLED, //!< event unhandled due to a guard
// handled and do not need to "bubble up"
Q_RET_HANDLED, //!< event handled (internal transition)
Q_RET_IGNORED, //!< event silently ignored (bubbled up to top)
// entry/exit
Q_RET_ENTRY, //!< state entry action executed
Q_RET_EXIT, //!< state exit action executed
// no side effects
Q_RET_NULL, //!< return value without any effect
// transitions need to execute transition-action table in QP::QMsm
Q_RET_TRAN, //!< regular transition
Q_RET_TRAN_INIT, //!< initial transition in a state or submachine
Q_RET_TRAN_EP, //!< entry-point transition into a submachine
// transitions that additionally clobber QHsm.m_state
Q_RET_TRAN_HIST, //!< transition to history of a given state
Q_RET_TRAN_XP //!< exit-point transition out of a submachine
};</code>
</attribute>
<!--${QEP::QAsm::ReservedSig}-->
<attribute name="ReservedSig" type="enum" visibility="0x04" properties="0x01">
<documentation>//! Reserved signals by the QP-framework.</documentation>
<code> : QSignal {
Q_EMPTY_SIG, //!< signal to execute the default case
Q_ENTRY_SIG, //!< signal for entry actions
Q_EXIT_SIG, //!< signal for exit actions
Q_INIT_SIG //!< signal for nested initial transitions
};</code>
</attribute>
<!--${QEP::QAsm::QAsm}-->
<operation name="QAsm" type="explicit" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<code> : m_state(),
m_temp ()</code>
</operation>
<!--${QEP::QAsm::~QAsm}-->
<operation name="~QAsm?def Q_XTOR" type="" visibility="0x00" properties="0x06">
<specifiers>noexcept</specifiers>
<code>// empty</code>
</operation>
<!--${QEP::QAsm::init}-->
<operation name="init" type="void" visibility="0x00" properties="0x04">
<specifiers>= 0</specifiers>
<!--${QEP::QAsm::init::e}-->
<parameter name="e" type="void const * const"/>
<!--${QEP::QAsm::init::qsId}-->
<parameter name="qsId" type="std::uint_fast8_t const"/>
</operation>
<!--${QEP::QAsm::init}-->
<operation name="init" type="void" visibility="0x00" properties="0x06">
<!--${QEP::QAsm::init::qsId}-->
<parameter name="qsId" type="std::uint_fast8_t const"/>
<code>this->init(nullptr, qsId);</code>
</operation>
<!--${QEP::QAsm::dispatch}-->
<operation name="dispatch" type="void" visibility="0x00" properties="0x04">
<specifiers>= 0</specifiers>
<!--${QEP::QAsm::dispatch::e}-->
<parameter name="e" type="QEvt const * const"/>
<!--${QEP::QAsm::dispatch::qsId}-->
<parameter name="qsId" type="std::uint_fast8_t const"/>
</operation>
<!--${QEP::QAsm::isIn}-->
<operation name="isIn" type="bool" visibility="0x00" properties="0x06">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::isIn::state}-->
<parameter name="state" type="QStateHandler const"/>
<code>static_cast<void>(state);
return false;</code>
</operation>
<!--${QEP::QAsm::state}-->
<operation name="state" type="QStateHandler" visibility="0x00" properties="0x02">
<specifiers>const noexcept</specifiers>
<code>return m_state.fun;</code>
</operation>
<!--${QEP::QAsm::stateObj}-->
<operation name="stateObj" type="QMState const *" visibility="0x00" properties="0x02">
<specifiers>const noexcept</specifiers>
<code>return m_state.obj;</code>
</operation>
<!--${QEP::QAsm::getStateHandler}-->
<operation name="getStateHandler?def Q_SPY" type="QStateHandler" visibility="0x00" properties="0x06">
<specifiers>noexcept</specifiers>
<code>return m_state.fun;</code>
</operation>
<!--${QEP::QAsm::top}-->
<operation name="top" type="QState" visibility="0x00" properties="0x03">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::top::me}-->
<parameter name="me" type="void * const"/>
<!--${QEP::QAsm::top::e}-->
<parameter name="e" type="QEvt const * const"/>
<code>static_cast<void>(me);
static_cast<void>(e);
return Q_RET_IGNORED; // the top state ignores all events</code>
</operation>
<!--${QEP::QAsm::tran}-->
<operation name="tran" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::tran::target}-->
<parameter name="target" type="QStateHandler const"/>
<code>m_temp.fun = target;
return Q_RET_TRAN;</code>
</operation>
<!--${QEP::QAsm::tran_hist}-->
<operation name="tran_hist" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::tran_hist::hist}-->
<parameter name="hist" type="QStateHandler const"/>
<code>m_temp.fun = hist;
return Q_RET_TRAN_HIST;</code>
</operation>
<!--${QEP::QAsm::super}-->
<operation name="super" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::super::superstate}-->
<parameter name="superstate" type="QStateHandler const"/>
<code>m_temp.fun = superstate;
return Q_RET_SUPER;</code>
</operation>
<!--${QEP::QAsm::qm_tran}-->
<operation name="qm_tran" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_tran::tatbl}-->
<parameter name="tatbl" type="void const * const"/>
<code>m_temp.tatbl = static_cast<QP::QMTranActTable const *>(tatbl);
return Q_RET_TRAN;</code>
</operation>
<!--${QEP::QAsm::qm_tran_init}-->
<operation name="qm_tran_init" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_tran_init::tatbl}-->
<parameter name="tatbl" type="void const * const"/>
<code>m_temp.tatbl = static_cast<QP::QMTranActTable const *>(tatbl);
return Q_RET_TRAN_INIT;</code>
</operation>
<!--${QEP::QAsm::qm_tran_hist}-->
<operation name="qm_tran_hist" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_tran_hist::hist}-->
<parameter name="hist" type="QMState const * const"/>
<!--${QEP::QAsm::qm_tran_hist::tatbl}-->
<parameter name="tatbl" type="void const * const"/>
<code>m_state.obj = hist;
m_temp.tatbl = static_cast<QP::QMTranActTable const *>(tatbl);
return Q_RET_TRAN_HIST;</code>
</operation>
<!--${QEP::QAsm::qm_tran_ep}-->
<operation name="qm_tran_ep" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_tran_ep::tatbl}-->
<parameter name="tatbl" type="void const * const"/>
<code>m_temp.tatbl = static_cast<QP::QMTranActTable const *>(tatbl);
return Q_RET_TRAN_EP;</code>
</operation>
<!--${QEP::QAsm::qm_tran_xp}-->
<operation name="qm_tran_xp" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_tran_xp::xp}-->
<parameter name="xp" type="QActionHandler const"/>
<!--${QEP::QAsm::qm_tran_xp::tatbl}-->
<parameter name="tatbl" type="void const * const"/>
<code>m_state.act = xp;
m_temp.tatbl = static_cast<QP::QMTranActTable const *>(tatbl);
return Q_RET_TRAN_XP;</code>
</operation>
<!--${QEP::QAsm::qm_entry}-->
<operation name="qm_entry?def Q_SPY" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_entry::s}-->
<parameter name="s" type="QMState const * const"/>
<code>m_temp.obj = s;
return Q_RET_ENTRY;</code>
</operation>
<!--${QEP::QAsm::qm_entry}-->
<operation name="qm_entry?ndef Q_SPY" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_entry::s}-->
<parameter name="s" type="QMState const * const"/>
<code>static_cast<void>(s); // unused parameter
return Q_RET_ENTRY;</code>
</operation>
<!--${QEP::QAsm::qm_exit}-->
<operation name="qm_exit?def Q_SPY" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_exit::s}-->
<parameter name="s" type="QMState const * const"/>
<code>m_temp.obj = s;
return Q_RET_EXIT;</code>
</operation>
<!--${QEP::QAsm::qm_exit}-->
<operation name="qm_exit?ndef Q_SPY" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_exit::s}-->
<parameter name="s" type="QMState const * const"/>
<code>static_cast<void>(s); // unused parameter
return Q_RET_EXIT;</code>
</operation>
<!--${QEP::QAsm::qm_sm_exit}-->
<operation name="qm_sm_exit" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_sm_exit::s}-->
<parameter name="s" type="QMState const * const"/>
<code>m_temp.obj = s;
return Q_RET_EXIT;</code>
</operation>
<!--${QEP::QAsm::qm_super_sub}-->
<operation name="qm_super_sub" type="QState" visibility="0x01" properties="0x02">
<specifiers>noexcept</specifiers>
<!--${QEP::QAsm::qm_super_sub::s}-->
<parameter name="s" type="QMState const * const"/>
<code>m_temp.obj = s;
return Q_RET_SUPER_SUB;</code>
</operation>
</class>
<!--${QEP::QHsm}-->
<class name="QHsm" superclass="QEP::QAsm">
<documentation>Human-generated State Machine</documentation>
<!--${QEP::QHsm::MAX_NEST_DEPTH_}-->
<attribute name="MAX_NEST_DEPTH_" type="static constexpr std::int_fast8_t" visibility="0x04" properties="0x01">
<code>{6};</code>
</attribute>
<!--${QEP::QHsm::QHsm}-->
<operation name="QHsm" type="explicit" visibility="0x01" properties="0x00">
<specifiers>noexcept</specifiers>
<!--${QEP::QHsm::QHsm::initial}-->
<parameter name="initial" type="QStateHandler const"/>
<code>: QAsm()
m_state.fun = Q_STATE_CAST(&top);
m_temp.fun = initial;</code>
</operation>
<!--${QEP::QHsm::init}-->
<operation name="init" type="void" visibility="0x00" properties="0x04">
<specifiers>override</specifiers>
<!--${QEP::QHsm::init::e}-->
<parameter name="e" type="void const * const"/>
<!--${QEP::QHsm::init::qsId}-->
<parameter name="qsId" type="std::uint_fast8_t const"/>
<code>QF_CRIT_STAT
#ifdef Q_SPY
QS_CRIT_ENTRY();
QS_MEM_SYS();
if ((QS::priv_.flags & 0x01U) == 0U) {
QS::priv_.flags |= 0x01U;
QS_MEM_APP();
QS_CRIT_EXIT();
QS_FUN_DICTIONARY(&QP::QHsm::top);
}
else {
QS_MEM_APP();
QS_CRIT_EXIT();
}
#else
Q_UNUSED_PAR(qsId);
#endif
QStateHandler t = m_state.fun;
QF_CRIT_ENTRY();
Q_REQUIRE_INCRIT(200, (m_temp.fun != nullptr)
&& (t == Q_STATE_CAST(&top)));
QF_CRIT_EXIT();
// execute the top-most initial tran.
QState r = (*m_temp.fun)(this, Q_EVT_CAST(QEvt));
QF_CRIT_ENTRY();
// the top-most initial tran. must be taken
Q_ASSERT_INCRIT(210, r == Q_RET_TRAN);
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_STATE_INIT, qsId)
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(t); // the source state
QS_FUN_PRE_(m_temp.fun); // the target of the initial tran.
QS_END_PRE_()
QS_MEM_APP();
QF_CRIT_EXIT();
// drill down into the state hierarchy with initial transitions...
do {
QStateHandler path[MAX_NEST_DEPTH_]; // tran entry path array
std::int_fast8_t ip = 0; // tran entry path index
path[0] = m_temp.fun;
static_cast<void>(QHSM_RESERVED_EVT_(m_temp.fun, Q_EMPTY_SIG));
// note: ip is here the fixed upper loop bound
while ((m_temp.fun != t) && (ip < (MAX_NEST_DEPTH_ - 1))) {
++ip;
path[ip] = m_temp.fun;
static_cast<void>(QHSM_RESERVED_EVT_(m_temp.fun, Q_EMPTY_SIG));
}
QF_CRIT_ENTRY();
// too many state nesting levels or "malformed" HSM
Q_ENSURE_INCRIT(220, ip < MAX_NEST_DEPTH_);
QF_CRIT_EXIT();
m_temp.fun = path[0];
// retrace the entry path in reverse (desired) order...
// note: ip is the fixed upper loop bound
do {
// enter path[ip]
if (QHSM_RESERVED_EVT_(path[ip], Q_ENTRY_SIG)
== Q_RET_HANDLED)
{
QS_STATE_ENTRY_(path[ip], qsId);
}
--ip;
} while (ip >= 0);
t = path[0]; // current state becomes the new source
r = QHSM_RESERVED_EVT_(t, Q_INIT_SIG); // execute initial tran.
#ifdef Q_SPY
if (r == Q_RET_TRAN) {
QS_CRIT_ENTRY();
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_STATE_INIT, qsId)
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(t); // the source state
QS_FUN_PRE_(m_temp.fun); // the target of the initial tran.
QS_END_PRE_()
QS_MEM_APP();
QS_CRIT_EXIT();
}
#endif // Q_SPY
} while (r == Q_RET_TRAN);
QF_CRIT_ENTRY();
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_INIT_TRAN, qsId)
QS_TIME_PRE_(); // time stamp
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(t); // the new active state
QS_END_PRE_()
QS_MEM_APP();
QF_CRIT_EXIT();
m_state.fun = t; // change the current active state
#ifndef Q_UNSAFE
m_temp.uint = ~m_state.uint;
#endif</code>
</operation>
<!--${QEP::QHsm::init}-->
<operation name="init" type="void" visibility="0x00" properties="0x06">
<specifiers>override</specifiers>
<!--${QEP::QHsm::init::qsId}-->
<parameter name="qsId" type="std::uint_fast8_t const"/>
<code>this->init(nullptr, qsId);</code>
</operation>
<!--${QEP::QHsm::dispatch}-->
<operation name="dispatch" type="void" visibility="0x00" properties="0x04">
<specifiers>override</specifiers>
<!--${QEP::QHsm::dispatch::e}-->
<parameter name="e" type="QEvt const * const"/>
<!--${QEP::QHsm::dispatch::qsId}-->
<parameter name="qsId" type="std::uint_fast8_t const"/>
<code>#ifndef Q_SPY
Q_UNUSED_PAR(qsId);
#endif
QStateHandler s = m_state.fun;
QStateHandler t = s;
QF_CRIT_STAT
QF_CRIT_ENTRY();
Q_REQUIRE_INCRIT(300, QEvt::verify_(e));
Q_INVARIANT_INCRIT(302, (s != Q_STATE_CAST(0))
&& (m_state.uint == static_cast<std::uintptr_t>(~m_temp.uint)));
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_DISPATCH, qsId)
QS_TIME_PRE_(); // time stamp
QS_SIG_PRE_(e->sig); // the signal of the event
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(s); // the current state
QS_END_PRE_()
QS_MEM_APP();
QF_CRIT_EXIT();
// process the event hierarchically...
QState r;
m_temp.fun = s;
std::int_fast8_t ip = MAX_NEST_DEPTH_; // fixed upper loop bound
do {
s = m_temp.fun;
r = (*s)(this, e); // invoke state handler s
if (r == Q_RET_UNHANDLED) { // unhandled due to a guard?
QS_CRIT_ENTRY();
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_UNHANDLED, qsId)
QS_SIG_PRE_(e->sig); // the signal of the event
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(s); // the current state
QS_END_PRE_()
QS_MEM_APP();
QS_CRIT_EXIT();
r = QHSM_RESERVED_EVT_(s, Q_EMPTY_SIG); // superstate of s
}
--ip;
} while ((r == Q_RET_SUPER) && (ip > 0));
QF_CRIT_ENTRY();
Q_ENSURE_INCRIT(310, ip > 0);
QF_CRIT_EXIT();
if (r >= Q_RET_TRAN) { // regular tran. taken?
QStateHandler path[MAX_NEST_DEPTH_];
path[0] = m_temp.fun; // tran. target
path[1] = t; // current state
path[2] = s; // tran. source
// exit current state to tran. source s...
ip = MAX_NEST_DEPTH_; // fixed upper loop bound
for (; (t != s) && (ip > 0); t = m_temp.fun) {
// exit from t
if (QHSM_RESERVED_EVT_(t, Q_EXIT_SIG) == Q_RET_HANDLED) {
QS_STATE_EXIT_(t, qsId);
// find superstate of t
static_cast<void>(QHSM_RESERVED_EVT_(t, Q_EMPTY_SIG));
}
--ip;
}
QF_CRIT_ENTRY();
Q_ENSURE_INCRIT(320, ip > 0);
QF_CRIT_EXIT();
ip = hsm_tran(path, qsId); // take the tran.
#ifdef Q_SPY
if (r == Q_RET_TRAN_HIST) {
QS_CRIT_ENTRY();
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_TRAN_HIST, qsId)
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(t); // the source of the transition
QS_FUN_PRE_(path[0]); // the target of the tran. to history
QS_END_PRE_()
QS_MEM_APP();
QS_CRIT_EXIT();
}
#endif // Q_SPY
// execute state entry actions in the desired order...
// note: ip is the fixed upper loop bound
for (; ip >= 0; --ip) {
// enter path[ip]
if (QHSM_RESERVED_EVT_(path[ip], Q_ENTRY_SIG)
== Q_RET_HANDLED)
{
QS_STATE_ENTRY_(path[ip], qsId);
}
}
t = path[0]; // stick the target into register
m_temp.fun = t; // update the next state
// drill into the target hierarchy...
while (QHSM_RESERVED_EVT_(t, Q_INIT_SIG) == Q_RET_TRAN) {
QS_CRIT_ENTRY();
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_STATE_INIT, qsId)
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(t); // the source (pseudo)state
QS_FUN_PRE_(m_temp.fun); // the target of the tran.
QS_END_PRE_()
QS_MEM_APP();
QS_CRIT_EXIT();
ip = 0;
path[0] = m_temp.fun;
// find superstate
static_cast<void>(QHSM_RESERVED_EVT_(m_temp.fun, Q_EMPTY_SIG));
// note: ip is the fixed upper loop bound
while ((m_temp.fun != t) && (ip < (MAX_NEST_DEPTH_ - 1))) {
++ip;
path[ip] = m_temp.fun;
// find superstate
static_cast<void>(
QHSM_RESERVED_EVT_(m_temp.fun, Q_EMPTY_SIG));
}
QF_CRIT_ENTRY();
// too many state nesting levels or "malformed" HSM
Q_ENSURE_INCRIT(330, ip < MAX_NEST_DEPTH_);
QF_CRIT_EXIT();
m_temp.fun = path[0];
// retrace the entry path in reverse (correct) order...
// note: ip is the fixed upper loop bound
do {
// enter path[ip]
if (QHSM_RESERVED_EVT_(path[ip], Q_ENTRY_SIG)
== Q_RET_HANDLED)
{
QS_STATE_ENTRY_(path[ip], qsId);
}
--ip;
} while (ip >= 0);
t = path[0]; // current state becomes the new source
}
QS_CRIT_ENTRY();
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_TRAN, qsId)
QS_TIME_PRE_(); // time stamp
QS_SIG_PRE_(e->sig); // the signal of the event
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(s); // the source of the tran.
QS_FUN_PRE_(t); // the new active state
QS_END_PRE_()
QS_MEM_APP();
QS_CRIT_EXIT();
}
#ifdef Q_SPY
else if (r == Q_RET_HANDLED) {
QS_CRIT_ENTRY();
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_INTERN_TRAN, qsId)
QS_TIME_PRE_(); // time stamp
QS_SIG_PRE_(e->sig); // the signal of the event
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(s); // the source state
QS_END_PRE_()
QS_MEM_APP();
QS_CRIT_EXIT();
}
else {
QS_CRIT_ENTRY();
QS_MEM_SYS();
QS_BEGIN_PRE_(QS_QEP_IGNORED, qsId)
QS_TIME_PRE_(); // time stamp
QS_SIG_PRE_(e->sig); // the signal of the event
QS_OBJ_PRE_(this); // this state machine object
QS_FUN_PRE_(m_state.fun); // the current state
QS_END_PRE_()
QS_MEM_APP();
QS_CRIT_EXIT();
}
#endif // Q_SPY
m_state.fun = t; // change the current active state
#ifndef Q_UNSAFE
m_temp.uint = ~m_state.uint;
#endif</code>
</operation>
<!--${QEP::QHsm::isIn}-->
<operation name="isIn" type="bool" visibility="0x00" properties="0x00">
<specifiers>noexcept override</specifiers>
<!--${QEP::QHsm::isIn::state}-->
<parameter name="state" type="QStateHandler const"/>
<code>QF_CRIT_STAT
QF_CRIT_ENTRY();
Q_INVARIANT_INCRIT(602, m_state.uint
== static_cast<std::uintptr_t>(~m_temp.uint));
QF_CRIT_EXIT();
bool inState = false; // assume that this HSM is not in 'state'
// scan the state hierarchy bottom-up
QStateHandler s = m_state.fun;
std::int_fast8_t lbound = MAX_NEST_DEPTH_ + 1; // fixed upper loop bound
QState r = Q_RET_SUPER;
for (; (r != Q_RET_IGNORED) && (lbound > 0); --lbound) {
if (s == state) { // do the states match?
inState = true; // 'true' means that match found
break; // break out of the for-loop
}
else {
r = QHSM_RESERVED_EVT_(s, Q_EMPTY_SIG);
s = m_temp.fun;
}
}
QF_CRIT_ENTRY();
Q_ENSURE_INCRIT(690, lbound > 0);
QF_CRIT_EXIT();
#ifndef Q_UNSAFE
m_temp.uint = ~m_state.uint;
#endif
return inState; // return the status</code>
</operation>
<!--${QEP::QHsm::childState}-->
<operation name="childState" type="QStateHandler" visibility="0x00" properties="0x00">
<specifiers>noexcept</specifiers>
<!--${QEP::QHsm::childState::parent}-->
<parameter name="parent" type="QStateHandler const"/>
<code>QStateHandler child = m_state.fun; // start with current state
bool isFound = false; // start with the child not found
// establish stable state configuration
m_temp.fun = child;
QState r;
std::int_fast8_t lbound = MAX_NEST_DEPTH_; // fixed upper loop bound
do {
// is this the parent of the current child?
if (m_temp.fun == parent) {
isFound = true; // child is found
r = Q_RET_IGNORED; // break out of the loop
}
else {
child = m_temp.fun;
r = QHSM_RESERVED_EVT_(m_temp.fun, Q_EMPTY_SIG);
}
--lbound;
} while ((r != Q_RET_IGNORED) // QHsm::top() state not reached
&& (lbound > 0));
#ifndef Q_UNSAFE
m_temp.uint = ~m_state.uint;
#else
Q_UNUSED_PAR(isFound);
#endif
QF_CRIT_STAT
QF_CRIT_ENTRY();
// NOTE: the following postcondition can only succeed when
// (lbound > 0), so no extra check is necessary.
Q_ENSURE_INCRIT(890, isFound);
QF_CRIT_EXIT();
return child;</code>
</operation>
<!--${QEP::QHsm::getStateHandler}-->
<operation name="getStateHandler?def Q_SPY" type="QStateHandler" visibility="0x00" properties="0x06">
<specifiers>noexcept override</specifiers>
<code>return m_state.fun;</code>
</operation>
<!--${QEP::QHsm::hsm_tran}-->
<operation name="hsm_tran" type="std::int_fast8_t" visibility="0x02" properties="0x00">
<!--${QEP::QHsm::hsm_tran::(&path)[MAX_NEST_DEPTH_]}-->
<parameter name="(&path)[MAX_NEST_DEPTH_]" type="QStateHandler"/>
<!--${QEP::QHsm::hsm_tran::qsId}-->
<parameter name="qsId" type="std::uint_fast8_t const"/>
<code>#ifndef Q_SPY
Q_UNUSED_PAR(qsId);
#endif
std::int_fast8_t ip = -1; // tran. entry path index
QStateHandler t = path[0];
QStateHandler const s = path[2];
QF_CRIT_STAT
// (a) check source==target (tran. to self)...
if (s == t) {
// exit source s
if (QHSM_RESERVED_EVT_(s, Q_EXIT_SIG) == Q_RET_HANDLED) {
QS_STATE_EXIT_(s, qsId);
}
ip = 0; // enter the target
}
else {
// find superstate of target
static_cast<void>(QHSM_RESERVED_EVT_(t, Q_EMPTY_SIG));
t = m_temp.fun;
// (b) check source==target->super...
if (s == t) {
ip = 0; // enter the target
}
else {
// find superstate of src
static_cast<void>(QHSM_RESERVED_EVT_(s, Q_EMPTY_SIG));
// (c) check source->super==target->super...
if (m_temp.fun == t) {
// exit source s
if (QHSM_RESERVED_EVT_(s, Q_EXIT_SIG) == Q_RET_HANDLED) {
QS_STATE_EXIT_(s, qsId);
}
ip = 0; // enter the target
}
else {
// (d) check source->super==target...
if (m_temp.fun == path[0]) {
// exit source s
if (QHSM_RESERVED_EVT_(s, Q_EXIT_SIG) == Q_RET_HANDLED) {
QS_STATE_EXIT_(s, qsId);
}
}
else {
// (e) check rest of source==target->super->super..
// and store the entry path along the way
std::int_fast8_t iq = 0; // indicate that LCA was found
ip = 1; // enter target and its superstate
path[1] = t; // save the superstate of target
t = m_temp.fun; // save source->super
// find target->super->super...
// note: ip is the fixed upper loop bound
QState r = QHSM_RESERVED_EVT_(path[1], Q_EMPTY_SIG);
while ((r == Q_RET_SUPER)
&& (ip < (MAX_NEST_DEPTH_ - 1)))
{
++ip;
path[ip] = m_temp.fun; // store the entry path
if (m_temp.fun == s) { // is it the source?
iq = 1; // indicate that the LCA found
--ip; // do not enter the source
r = Q_RET_HANDLED; // terminate the loop
}
else { // it is not the source, keep going up
r = QHSM_RESERVED_EVT_(m_temp.fun, Q_EMPTY_SIG);
}
}
QF_CRIT_ENTRY();
// NOTE: The following postcondition succeeds only when
// ip < QHSM_MAX_NEST_DEPTH, so no additional check is necessary
// too many state nesting levels or "malformed" HSM.
Q_ENSURE_INCRIT(510, r != Q_RET_SUPER);
QF_CRIT_EXIT();
// the LCA not found yet?
if (iq == 0) {
// exit source s
if (QHSM_RESERVED_EVT_(s, Q_EXIT_SIG)
== Q_RET_HANDLED)
{
QS_STATE_EXIT_(s, qsId);
}
// (f) check the rest of source->super
// == target->super->super...
iq = ip;
r = Q_RET_IGNORED; // indicate that the LCA NOT found
// note: iq is the fixed upper loop bound
do {
if (t == path[iq]) { // is this the LCA?
r = Q_RET_HANDLED; // indicate the LCA found
ip = iq - 1; // do not enter the LCA
iq = -1; // cause termination of the loop
}
else {
--iq; // try lower superstate of target
}
} while (iq >= 0);
// the LCA not found yet?
if (r != Q_RET_HANDLED) {
// (g) check each source->super->...
// for each target->super...
r = Q_RET_IGNORED; // keep looping
std::int_fast8_t lbound = MAX_NEST_DEPTH_;
do {
// exit from t
if (QHSM_RESERVED_EVT_(t, Q_EXIT_SIG)
== Q_RET_HANDLED)
{
QS_STATE_EXIT_(t, qsId);
// find superstate of t
static_cast<void>(
QHSM_RESERVED_EVT_(t, Q_EMPTY_SIG));
}
t = m_temp.fun; // set to super of t
iq = ip;
do {
// is this the LCA?
if (t == path[iq]) {
ip = iq - 1; // do not enter the LCA
iq = -1; // break out of inner loop
r = Q_RET_HANDLED; // break outer loop
}
else {
--iq;
}
} while (iq >= 0);
--lbound;
} while ((r != Q_RET_HANDLED) && (lbound > 0));
QF_CRIT_ENTRY();
Q_ASSERT_INCRIT(530, lbound > 0);
QF_CRIT_EXIT();
}
}
}
}
}
}
QF_CRIT_ENTRY();
Q_ENSURE_INCRIT(590, ip < MAX_NEST_DEPTH_);
QF_CRIT_EXIT();
return ip;</code>
</operation>
</class>