stk::test::SyncObjectMock Struct Reference

#include <stktest.h>

Inheritance diagram for stk::test::SyncObjectMock:

Collaboration diagram for stk::test::SyncObjectMock:

Public Types
typedef DLHeadType	ListHeadType
	List head type for ISyncObject elements.
typedef DLEntryType	ListEntryType
	List entry type of ISyncObject elements.
typedef DListEntry< ISyncObject, _ClosedLoop >	DLEntryType
	Convenience alias for this entry type. Used to avoid repeating the full template spelling.
typedef DListHead< ISyncObject, _ClosedLoop >	DLHeadType
	Convenience alias for the corresponding list head type.

Public Member Functions
void	WakeOne ()
void	WakeAll ()
virtual void	AddWaitObject (IWaitObject *wobj)
	Called by kernel when a new task starts waiting on this event.
virtual void	RemoveWaitObject (IWaitObject *wobj)
	Called by kernel when a waiting task is being removed (timeout expired, wait aborted, task terminated etc.).
virtual bool	Tick (Timeout elapsed_ticks)
	Called by kernel on every system tick to handle timeout logic of waiting tasks.
DLHeadType *	GetHead () const
	Get the list head this entry currently belongs to.
DLEntryType *	GetNext () const
	Get the next entry in the list.
DLEntryType *	GetPrev () const
	Get the previous entry in the list.
bool	IsLinked () const
	Check whether this entry is currently a member of any list.
	operator ISyncObject * ()
	Implicit conversion to a mutable pointer to the host object (T).
	operator const ISyncObject * () const
	Implicit conversion to a const pointer to the host object (T).

Protected Attributes
IWaitObject::ListHeadType	m_wait_list
	tasks blocked on this object

Private Member Functions
void	Link (DLHeadType *head, DLEntryType *next, DLEntryType *prev)
	Wire this entry into a list between prev and next.
void	Unlink ()
	Remove this entry from its current list.

Private Attributes
DLHeadType *	m_head
	Owning list head, or NULL when the entry is not linked.
DLEntryType *	m_next
	Next entry in the list, or NULL (open list boundary) / first entry (closed loop).
DLEntryType *	m_prev
	Previous entry in the list, or NULL (open list boundary) / last entry (closed loop).

Detailed Description

Definition at line 387 of file stktest.h.

Member Typedef Documentation

DLEntryType

typedef DListEntry<ISyncObject, _ClosedLoop> stk::util::DListEntry< ISyncObject, _ClosedLoop >::DLEntryType

inherited

Convenience alias for this entry type. Used to avoid repeating the full template spelling.

Definition at line 70 of file stk_linked_list.h.

DLHeadType

typedef DListHead<ISyncObject, _ClosedLoop> stk::util::DListEntry< ISyncObject, _ClosedLoop >::DLHeadType

inherited

Convenience alias for the corresponding list head type.

Definition at line 75 of file stk_linked_list.h.

ListEntryType

typedef DLEntryType stk::ISyncObject::ListEntryType

inherited

List entry type of ISyncObject elements.

Definition at line 313 of file stk_common.h.

ListHeadType

typedef DLHeadType stk::ISyncObject::ListHeadType

inherited

List head type for ISyncObject elements.

Definition at line 308 of file stk_common.h.

Member Function Documentation

AddWaitObject()

virtual void stk::ISyncObject::AddWaitObject ( IWaitObject * wobj )

inlinevirtualinherited

Called by kernel when a new task starts waiting on this event.

Parameters

[in]

wobj

Wait object representing blocked task.

Definition at line 318 of file stk_common.h.

    {
        STK_ASSERT(wobj->GetHead() == nullptr);
        m_wait_list.LinkBack(wobj);
    }

References stk::util::DListEntry< T, _ClosedLoop >::GetHead(), m_wait_list, and STK_ASSERT.

Referenced by stk::Kernel< TMode, TSize, TStrategy, TPlatform >::KernelTask::WaitObject::SetupWait().

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GetHead()

DLHeadType * stk::util::DListEntry< ISyncObject, _ClosedLoop >::GetHead ( ) const

inlineinherited

Get the list head this entry currently belongs to.

Returns

Pointer to the owning DListHead, or NULL if the entry is not linked.

Definition at line 80 of file stk_linked_list.h.

{ return m_head; }

GetNext()

DLEntryType * stk::util::DListEntry< ISyncObject, _ClosedLoop >::GetNext ( ) const

inlineinherited

Get the next entry in the list.

Returns

Pointer to the next DListEntry, or NULL if this is the last entry (open list) or the first entry (closed loop, where next wraps to first).

Note

In a closed loop (_ClosedLoop == true) this pointer is never NULL when the entry is linked.

Definition at line 88 of file stk_linked_list.h.

{ return m_next; }

GetPrev()

DLEntryType * stk::util::DListEntry< ISyncObject, _ClosedLoop >::GetPrev ( ) const

inlineinherited

Get the previous entry in the list.

Returns

Pointer to the previous DListEntry, or NULL if this is the first entry (open list) or the last entry (closed loop, where prev wraps to last).

Note

In a closed loop (_ClosedLoop == true) this pointer is never NULL when the entry is linked.

Definition at line 96 of file stk_linked_list.h.

{ return m_prev; }

IsLinked()

bool stk::util::DListEntry< ISyncObject, _ClosedLoop >::IsLinked ( ) const

inlineinherited

Check whether this entry is currently a member of any list.

Returns

true if linked (m_head != NULL); false otherwise.

Definition at line 101 of file stk_linked_list.h.

{ return (GetHead() != nullptr); }

Link()

void stk::util::DListEntry< ISyncObject, _ClosedLoop >::Link ( DLHeadType * head, DLEntryType * next, DLEntryType * prev )

inlineprivateinherited

Wire this entry into a list between prev and next.

Parameters

[in]	head	The owning DListHead. Stored as a back-pointer for IsLinked() and ownership checks.
[in]	next	The entry that will follow this one, or NULL if this becomes the last entry.
[in]	prev	The entry that will precede this one, or NULL if this becomes the first entry.

Note

Called exclusively by DListHead::Link(). Assumes the entry is not currently linked. Updates the neighbours' forward/back pointers to splice this entry in.

Definition at line 137 of file stk_linked_list.h.

    {
        m_head = head;
        m_next = next;
        m_prev = prev;
 
        if (m_prev != nullptr)
            m_prev->m_next = this;
 
        if (m_next != nullptr)
            m_next->m_prev = this;
    }

operator const ISyncObject *()

stk::util::DListEntry< ISyncObject, _ClosedLoop >::operator const ISyncObject * ( ) const

inlineinherited

Implicit conversion to a const pointer to the host object (T).

Note

Safe because T must derive from DListEntry<T, _ClosedLoop>. Eliminates the need for explicit static_cast at call sites.

MISRA deviation: [STK-DEV-004] Rule 5-2-x.

Definition at line 115 of file stk_linked_list.h.

{ return static_cast<const T *>(this); }

operator ISyncObject *()

stk::util::DListEntry< ISyncObject, _ClosedLoop >::operator ISyncObject* ( )

inlineinherited

Implicit conversion to a mutable pointer to the host object (T).

Note

Safe because T must derive from DListEntry<T, _ClosedLoop>. Eliminates the need for explicit static_cast at call sites.

MISRA deviation: [STK-DEV-004] Rule 5-2-x.

Definition at line 108 of file stk_linked_list.h.

{ return static_cast<T *>(this); }

RemoveWaitObject()

virtual void stk::ISyncObject::RemoveWaitObject ( IWaitObject * wobj )

inlinevirtualinherited

Called by kernel when a waiting task is being removed (timeout expired, wait aborted, task terminated etc.).

Parameters

[in]

wobj

Wait object to remove from the wait list.

Reimplemented in stk::sync::Event.

Definition at line 327 of file stk_common.h.

    {
        STK_ASSERT(wobj->GetHead() == &m_wait_list);
        m_wait_list.Unlink(wobj);
    }

References stk::util::DListEntry< T, _ClosedLoop >::GetHead(), m_wait_list, and STK_ASSERT.

Referenced by stk::sync::Event::RemoveWaitObject().

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Tick()

bool stk::ISyncObject::Tick ( Timeout elapsed_ticks )

inlinevirtualinherited

Called by kernel on every system tick to handle timeout logic of waiting tasks.

Implementation of ISyncObject::Tick, see ISyncObject. Placed here as it depends on hw namespace.

Parameters

[in]

elapsed_ticks

Number of ticks elapsed between this and previous calls, in case of KERNEL_TICKLESS mode this value can be >1, for non-tickless mode it is always 1.

Returns

true if this synchronization object still has waiters with a finite timeout and requires further tick calls. false if the wait list is empty or all remaining waiters have infinite timeouts, signaling to the kernel that it may stop calling Tick() for this object until a new waiter is added.

Note

When this method returns false, the kernel unlinks this object from its active sync list. It will be re-linked automatically when the next waiter is added via AddWaitObject().

Definition at line 467 of file stk_arch.h.

{
    // note: ScopedCriticalSection usage
    //
    // Single-core: no critical section needed - Tick() runs inside the
    // SysTick ISR which already executes with interrupts disabled, making
    // re-entrancy impossible on the local core.
    //
    // Multi-core: critical section is required because the tick handler on
    // each core may call Tick() concurrently for the same Semaphore instance,
    // and ISyncObject::Tick() is not re-entrant.
#if (STK_ARCH_CPU_COUNT > 1)
    hw::CriticalSection::ScopedLock cs_;
#endif
 
    IWaitObject *itr = static_cast<IWaitObject *>(m_wait_list.GetFirst());
 
    while (itr != nullptr)
    {
        IWaitObject *next = static_cast<IWaitObject *>(itr->GetNext());
 
        if (!itr->Tick(elapsed_ticks))
            itr->Wake(true);
 
        itr = next;
    }
 
    return !m_wait_list.IsEmpty();
}

References stk::util::DListEntry< T, _ClosedLoop >::GetNext(), m_wait_list, stk::IWaitObject::Tick(), and stk::IWaitObject::Wake().

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Unlink()

void stk::util::DListEntry< ISyncObject, _ClosedLoop >::Unlink ( )

inlineprivateinherited

Remove this entry from its current list.

Note

Called exclusively by DListHead::Unlink(). Patches the neighbours' pointers to bridge over this entry, then clears m_head, m_next, and m_prev to NULL so the entry is in a clean unlinked state.

Does not update DListHead::m_count or m_first / m_last — those are the responsibility of the calling DListHead::Unlink().

Definition at line 157 of file stk_linked_list.h.

    {
        if (m_prev != nullptr)
            m_prev->m_next = m_next;
 
        if (m_next != nullptr)
            m_next->m_prev = m_prev;
 
        m_head = nullptr;
        m_next = nullptr;
        m_prev = nullptr;
    }

WakeAll()

void stk::test::SyncObjectMock::WakeAll ( )

inline

Definition at line 390 of file stktest.h.

{ ISyncObject::WakeAll(); }

References stk::ISyncObject::WakeAll().

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WakeOne()

void stk::test::SyncObjectMock::WakeOne ( )

inline

Definition at line 389 of file stktest.h.

{ ISyncObject::WakeOne(); }

References stk::ISyncObject::WakeOne().

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Member Data Documentation

m_head

DLHeadType* stk::util::DListEntry< ISyncObject, _ClosedLoop >::m_head

privateinherited

Owning list head, or NULL when the entry is not linked.

Definition at line 170 of file stk_linked_list.h.

m_next

DLEntryType* stk::util::DListEntry< ISyncObject, _ClosedLoop >::m_next

privateinherited

Next entry in the list, or NULL (open list boundary) / first entry (closed loop).

Definition at line 171 of file stk_linked_list.h.

m_prev

DLEntryType* stk::util::DListEntry< ISyncObject, _ClosedLoop >::m_prev

privateinherited

Previous entry in the list, or NULL (open list boundary) / last entry (closed loop).

Definition at line 172 of file stk_linked_list.h.

m_wait_list

IWaitObject::ListHeadType stk::ISyncObject::m_wait_list

protectedinherited

tasks blocked on this object

Definition at line 373 of file stk_common.h.

Referenced by AddWaitObject(), ISyncObject(), stk::sync::Event::Pulse(), RemoveWaitObject(), stk::sync::Semaphore::Signal(), Tick(), stk::sync::Mutex::Unlock(), WakeAll(), WakeOne(), stk::sync::ConditionVariable::~ConditionVariable(), stk::sync::Event::~Event(), stk::sync::Mutex::~Mutex(), and stk::sync::Semaphore::~Semaphore().

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The documentation for this struct was generated from the following file:

• stktest.h