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Поддержка блокировок


Поддержка блокировок



Each function listed below returns information about lock status or acquires or releases a lock at the table or record level.



DbiAcqPersistTableLock:
Acquires an exclusive persistent lock on the table preventing other users from using the table
or creating a table of the same name.

DbiAcqTableLock:
Acquires a table-level lock on the table associated with the given cursor.

DbiGetRecord:
Record positioning functions have a lock parameter.

DbiIsRecordLocked:
Checks the lock status of the current record.

DbiIsTableLocked:
Returns the number of locks of a specified type acquired on the table associated with the
given session.

DbiIsTableShared:
Determines whether the table is physically shared or not.

DbiOpenLockList:
Creates an in-memory table containing a list of locks acquired on the table.

DbiOpenUserList:
Creates an in-memory table containing a list of users sharing the same network file.

DbiRelPersistTableLock:
Releases the persistent table lock on the specified table.

DbiRelRecordLock:
Releases the record lock on either the current record of the cursor or only the locks acquired
in the current session.

DbiRelTableLock:
Releases table locks of the specified type associated with the current session (the session in
which the cursor was created).

DbiSetLockRetry:
Sets the table and record lock retry time for the current session.


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