JetStopBackup Function

Artikkel
08/26/2021

Applies to: Windows | Windows Server

JetStopBackup Function

The JetStopBackup function prevents any streaming backup-related activity from continuing on a specific running instance, thus ending the streaming backup in a predictable way.

Windows XP: This function is introduced in Windows XP.

JetStopService is the legacy call when only one instance is allowed. In this case, the only active instance is the one being prepared for termination.

JET_ERR JET_API JetStopBackup(void);

Parameters

This function has no parameters.

Return Value

This function returns the JET_ERR datatype with one of the following return codes. For more information about the possible ESE errors, see Extensible Storage Engine Errors and Error Handling Parameters.

Return code	Description
JET_errSuccess	The operation completed successfully.
JET_errRunningInMultiInstanceMode	It is not clear which instance to prepare for termination when using JetStopService with multiple instance mode. Windows XP: This return value is introduced in Windows XP.

Return code

Description

JET_errSuccess

The operation completed successfully.

JET_errRunningInMultiInstanceMode

It is not clear which instance to prepare for termination when using JetStopService with multiple instance mode.

Windows XP: This return value is introduced in Windows XP.

If this function succeeds, the instance will start failing any new streaming backup APIs.

If this function fails, no steps to prepare for the backup termination on the instance will be taken and no change to the instance state will occur.

Remarks

Backup is usually triggered by an event outside the process mechanism and by using this API, the ESENT application itself will make any further calls to the streaming backup APIs to fail. The majority of streaming backup APIs will start failing with JET_errBackupAbortByServer. As such, any streaming backup progress (like JetReadFileInstance) will return an error. Backup operations which are part of the backup termination (such as JetEndExternalBackupInstance) will still be allowed.

Requirements

Requirement	Value
Client	Requires Windows Vista, Windows XP, or Windows 2000 Professional.
Server	Requires Windows Server 2008, Windows Server 2003, or Windows 2000 Server.
Header	Declared in Esent.h.
Library	Use ESENT.lib.
DLL	Requires ESENT.dll.

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JetStopBackup Function