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Description
To be documented
Class definitions
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TCacheTimer = class(TObject)
constructor Create(ACache:TCache);
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destructor Destroy; override;
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protected
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FCache:TCache;
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FLock:TMutexHandle;
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FInterval:LongWord;
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FCheckTimer:TTimerHandle;
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FProcessSemaphore:TSemaphoreHandle;
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FFirst:PCacheTimerItem;
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FLast:PCacheTimerItem;
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function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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function Dequeue(AMax:Integer):TCachePage;
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function FirstKey:Integer;
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function InsertKey(APage:TCachePage; AKey:Integer):Boolean;
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function DeleteKey(APage:TCachePage):Boolean;
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function DecrementKey:Integer;
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public
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function StartTimer(AInterval:LongWord):Boolean;
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function StopTimer:Boolean;
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function CheckTimer:Boolean;
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function ProcessTimer:Boolean;
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function SchedulePage(APage:TCachePage; ATimeout:LongWord):Boolean;
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function UnschedulePage(APage:TCachePage):Boolean;
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Function declarations
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constructor TCacheTimer.Create(ACache:TCache);
Description: To be documented
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destructor TCacheTimer.Destroy;
Description: To be documented
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function TCacheTimer.AcquireLock:Boolean;
Description: To be documented
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function TCacheTimer.ReleaseLock:Boolean;
Description: To be documented
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function TCacheTimer.Dequeue(AMax:Integer):TCachePage;
Description: Get and remove the first page from the timer list if the key is less than or equal to Max
| Max
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The maximum value of the key for the page to be dequeued
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| Return
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Dequeued Page or nil on non ready or failure
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function TCacheTimer.FirstKey:Integer;
Description: Get the first Key value from the timer list
| Return
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First Key value from timer list or CACHE_TIMER_KEY_NONE on failure
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function TCacheTimer.InsertKey(APage:TCachePage; AKey:Integer):Boolean;
Description: Insert the supplied page in the timer list in delta ascending order based on Key
| Page
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The page to be inserted
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| Key
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The key to order the insertion on
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| Return
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True if completed or False on failure
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[Expand]
function TCacheTimer.DeleteKey(APage:TCachePage):Boolean;
Description: Delete the supplied page from the timer list
| Page
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The page to be deleted
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| Return
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True if completed or False on failure
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[Expand]
function TCacheTimer.DecrementKey:Integer;
Description: Decrement the first Key value in the Timer list
| Return
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First Key value in timer list after decrement or CACHE_TIMER_KEY_NONE on failure
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function TCacheTimer.StartTimer(AInterval:LongWord):Boolean;
Description: To be documented
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function TCacheTimer.StopTimer:Boolean;
Description: To be documented
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function TCacheTimer.CheckTimer:Boolean;
Description: To be documented
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function TCacheTimer.ProcessTimer:Boolean;
Description: To be documented
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function TCacheTimer.SchedulePage(APage:TCachePage; ATimeout:LongWord):Boolean;
Description: To be documented
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function TCacheTimer.UnschedulePage(APage:TCachePage):Boolean;
Description: To be documented
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