TEntryTimer - Revision history

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2018-05-17T04:59:59Z

Created page with "Return to Unit Filesystem TOC === Description === ---- ''To be documented'' === Class definitions === ---- <div class="toccolours mw-collapsible..."

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TOC

=== Description ===
----

''To be documented''

=== Class definitions ===
----

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<code>TEntryTimer = class(TObject)</code>
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| <code>constructor Create(ADriver:TFileSysDriver);</code>
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| <code>destructor Destroy; override;</code>
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|colspan="2"|<div style="font-family: monospace,courier;">'''protected'''</div>
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| <code>FDriver:TFileSysDriver;</code>
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| <code>FLock:TMutexHandle;</code>
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| <code>FInterval:LongWord;</code>
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| <code>FCheckTimer:TTimerHandle;</code>
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| <code>FProcessTimer:TTimerHandle;</code>
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|colspan="2"| 
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| <code>FFirst:PEntryTimerItem;</code>
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| <code>FLast:PEntryTimerItem;</code>
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|colspan="2"| 
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| <code>function AcquireLock:Boolean;</code>
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| <code>function ReleaseLock:Boolean;</code>
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|colspan="2"| 
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| <code>function Dequeue:TDiskEntry;</code>
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| <code>function FirstKey:Integer;</code>
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| <code>function InsertKey(AEntry:TDiskEntry; AKey:Integer):Boolean;</code>
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| <code>function DeleteKey(AEntry:TDiskEntry):Boolean;</code>
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| <code>function DecrementKey:Integer;</code>
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|colspan="2"|<div style="font-family: monospace,courier;">'''public'''</div>
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| <code>function StartTimer(AInterval:LongWord):Boolean;</code>
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| <code>function StopTimer:Boolean;</code>
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|colspan="2"| 
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| <code>function CheckTimer:Boolean;</code>
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| <code>function ProcessTimer:Boolean;</code>
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|colspan="2"| 
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| <code>function ScheduleEntry(AEntry:TDiskEntry; ATimeout:LongWord):Boolean;</code>
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| <code>function UnscheduleEntry(AEntry:TDiskEntry):Boolean;</code>
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=== Function declarations ===
----

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<pre style="border: 0; padding-bottom:0px;">constructor TEntryTimer.Create(ADriver:TFileSysDriver);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">destructor TEntryTimer.Destroy;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.AcquireLock:Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.ReleaseLock:Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.Dequeue:TDiskEntry;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get and remove the first entry from the timer list</div>
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! Return
| Dequeued Entry or nil on failure
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.FirstKey:Integer;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the first Key value from the timer list</div>
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! Return
| First Key value from timer list or ENTRY_TIMER_KEY_NONE on failure
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.InsertKey(AEntry:TDiskEntry; AKey:Integer):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Insert the supplied entry in the timer list in delta ascending order based on Key</div>
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! Entry
| The entry to be inserted
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! Key
| The key to order the insertion on
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! Return
| True if completed or False on failure
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.DeleteKey(AEntry:TDiskEntry):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Delete the supplied entry from the timer list</div>
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! Entry
| The Entry to be deleted
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! Return
| True if completed or False on failure
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.DecrementKey:Integer;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Decrement the first Key value in the Timer list</div>
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! Return
| First Key value in timer list after decrement or ENTRY_TIMER_KEY_NONE on failure
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|}
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.StartTimer(AInterval:LongWord):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.StopTimer:Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.CheckTimer:Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| None documented
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.ProcessTimer:Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! Note
| Calls to ProcessTimer must be serialized so that multiple threads do not call simultaneously. This is done by creating the timer as non rescheduled and having this routine reenable the timer on completion.
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.ScheduleEntry(AEntry:TDiskEntry; ATimeout:LongWord):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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<pre style="border: 0; padding-bottom:0px;">function TEntryTimer.UnscheduleEntry(AEntry:TDiskEntry):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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