Microframe Corporation 3007 Series Podręcznik Użytkownika Pobierz pdf (Strona 92)

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Status Codes

 The application is currently processing a wait transaction and

tried to access a file that another user has locked.

When you are using the Btrieve Requester to access the MicroKernel,

the Requester waits and retries if a requested resource is locked.

When a server-based application is accessing the MicroKernel and

the requested resource is locked, a wait is also required. In this case,

the MicroKernel is expected to perform the wait. Because this would

occupy the MicroKernel and lock out other users who might be

trying to release the requested resource, the MicroKernel does not

perform the wait. Instead, it returns this status code, and the server-

based application must retry later.

78: The MicroKernel detected a deadlock condition

The application should clear all resources by aborting, ending the

transaction, or releasing all record locks before proceeding. This

breaks the deadlock, allowing other applications to access the

resources for which they are waiting.

79: A programming error occurred

This status code is obsolete in MicroKernel versions 7.0 and later.

There is a malfunction that the MicroKernel cannot specifically

detect or from which the MicroKernel cannot recover. Retry the

operation. If the error persists, there may be system corruption; try

to clear the system by rebooting, and then try the operation again.

80: The MicroKernel encountered a record-level conflict

The MicroKernel did not perform the Update or Delete operation

because of a record-level conflict. For example, station A reads a

record, station B reads the same record and updates it, and then

station A attempts to update the record. The application should

reread the record prior to resending an Update or Delete operation.

Alternatively, the application can employ record locks to avoid

conflicts.

In key-only files, you receive this status code if the record is moved in

the file b-tree after being read and before being updated or deleted.

A record can move as a result of other records being inserted,

updated, or deleted.

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Microframe Corporation 3007 Series Podręcznik Użytkownika Strona 92