PolicyUnit Struktura

Definice

Obor názvů:

System.IO.Log

Sestavení:

System.IO.Log.dll

Představuje měření velikosti v zásadách úložiště protokolů.

public value class PolicyUnit

public struct PolicyUnit

type PolicyUnit = struct

Public Structure PolicyUnit

Dědičnost

Object

ValueType

PolicyUnit

Příklady

Tento příklad ukazuje, jak pomocí LogPolicy třídy a PolicyUnit struktury nastavit zásady pro sekvenci záznamů protokolu.

// SET LOG POLICY

LogPolicy policy = sequence.LogStore.Policy;

// Set AutoGrow policy. This enables the log to automatically grow
// when the existing extents are full. New extents are added until
// we reach the MaximumExtentCount extents.
// AutoGrow policy is supported only in Windows Vista and not available in R2.

//policy.AutoGrow = true;

// Set the Growth Rate in terms of extents. This policy specifies
// "how much" the log should grow.
policy.GrowthRate = new PolicyUnit(2, PolicyUnitType.Extents);

// Set the AutoShrink policy. This enables the log to automatically
// shrink if the available free space exceeds the shrink percentage.
// AutoGrow/shrink policy is supported only in Windows Vista and not available in R2.

//policy.AutoShrinkPercentage = new PolicyUnit(30, PolicyUnitType.Percentage);

// Set the PinnedTailThreshold policy.
// A tail pinned event is triggered when there is no
// log space available and log space may be freed by advancing the base.
// The user must handle the tail pinned event by advancing the base of the log.
// If the user is not able to move the base of the log, the user should report with exception in
// the tail pinned handler.
// PinnedTailThreashold policy dictates the amount of space that the TailPinned event requests
// for advancing the base of the log. The amount of space can be in percentage or in terms of bytes
// which is rounded off to the nearest containers in CLFS. The default is 35 percent.

policy.PinnedTailThreshold = new PolicyUnit(10, PolicyUnitType.Percentage);

// Set the maximum extents the log can have.
policy.MaximumExtentCount = 6;

// Set the minimum extents the log can have.
policy.MinimumExtentCount = 2;

// Set the prefix for new containers that are added.
// when AutoGrow is enabled.
//policy.NewExtentPrefix = "MyLogPrefix";

// Set the suffix number for new containers that are added.
// when AutoGrow is enabled.
policy.NextExtentSuffix = 3;

// Commit the log policy.
policy.Commit();

// Refresh updates the IO.Log policy properties with current log policy
// set in the log.
policy.Refresh();

// LOG POLICY END
//

' SET LOG POLICY

Dim policy As LogPolicy = sequence.LogStore.Policy

' Set AutoGrow policy. This enables the log to automatically grow
' when the existing extents are full. New extents are added until
' we reach the MaximumExtentCount extents.
' AutoGrow policy is supported only in Windows Vista and not available in R2.

'policy.AutoGrow = true;

' Set the Growth Rate in terms of extents. This policy specifies
' "how much" the log should grow. 
policy.GrowthRate = New PolicyUnit(2, PolicyUnitType.Extents)

' Set the AutoShrink policy. This enables the log to automatically
' shrink if the available free space exceeds the shrink percentage. 
' AutoGrow/shrink policy is supported only in Windows Vista and not available in R2.

'policy.AutoShrinkPercentage = new PolicyUnit(30, PolicyUnitType.Percentage);

' Set the PinnedTailThreshold policy.
' A tail pinned event is triggered when there is no
' log space available and log space may be freed by advancing the base.
' The user must handle the tail pinned event by advancing the base of the log. 
' If the user is not able to move the base of the log, the user should report with exception in
' the tail pinned handler.
' PinnedTailThreashold policy dictates the amount of space that the TailPinned event requests 
' for advancing the base of the log. The amount of space can be in percentage or in terms of bytes 
' which is rounded off to the nearest containers in CLFS. The default is 35 percent.


policy.PinnedTailThreshold = New PolicyUnit(10, PolicyUnitType.Percentage)

' Set the maximum extents the log can have.
policy.MaximumExtentCount = 6

' Set the minimum extents the log can have.
policy.MinimumExtentCount = 2

' Set the prefix for new containers that are added. 
' when AutoGrow is enabled.
'policy.NewExtentPrefix = "MyLogPrefix";

' Set the suffix number for new containers that are added.
' when AutoGrow is enabled. 
policy.NextExtentSuffix = 3

' Commit the log policy.
policy.Commit()

' Refresh updates the IO.Log policy properties with current log policy 
' set in the log. 
policy.Refresh()

' LOG POLICY END
'

Poznámky

Struktura PolicyUnit představuje měření velikosti v zásadách úložiště protokolů. Výčet PolicyUnitType uvádí měrné jednotky, které lze reprezentovat.

Pomocí vlastnosti můžete Value určit velikost měření. K určení měrné jednotky použijte Type vlastnost. Jiné datové typy můžete převést na objekt PolicyUnit pomocí Percentage metod a Extents metod.

Konstruktory

Name	Description
PolicyUnit(Int64, PolicyUnitType)	Inicializuje novou instanci PolicyUnit struktury se zadanou hodnotou a typem.

Vlastnosti

Name	Description
Type	Získá typ PolicyUnitjednotky .
Value	Získá hodnotu PolicyUnit.

Metody

Name	Description
Equals(Object)	Určuje, zda tato instance a zadaný objekt jsou rovny.
Extents(Int64)	PolicyUnit Vytvoří typ ze zadaného Extents čísla.
GetHashCode()	Poskytuje jedinečný kód hash pro tento objekt.
Percentage(Int64)	PolicyUnit Vytvoří typ ze zadaného Percentage čísla.
ToString()	Vrátí řetězcovou reprezentaci tohoto objektu.

Operátory

Name	Description
Equality(PolicyUnit, PolicyUnit)	Porovná dvě PolicyUnit instance a určí, jestli jsou stejné.
Inequality(PolicyUnit, PolicyUnit)	Porovná dvě PolicyUnit instance a určí, jestli se nerovnají.

Viz také

• LogPolicy
• PolicyUnitType