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c-treeDB API for C++ - Developers Guide

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CTBase::SetOperation

Syntax

void CTBase::SetOperation(CTOPS_MODE mode, CTOPS_STATE state);

Description

SetOperation() sets c-tree operation modes for special performance-related functionality and test operational states for critical events.

mode use a combination of the following values:

Operations Mode

Description

OPS_READLOCK

Enable automatic, low level, blocking read locks on each record access that does not already have a lock.

OPS_LOCKON_GET

Lock next fetch only.

OPS_UNLOCK_ADD

Automatic unlock on add.

OPS_UNLOCK_RWT

Automatic unlock on rewrite.

OPS_UNLOCK_UPD

(OPS_UNLOCK_ADD | OPS_UNLOCK_RWT)

OPS_LOCKON_BLK

Blocking lock on next fetch only.

OPS_LOCKON_ADD_BLK

Enable blocking write lock mode during record add call then restore original lock mode.

OPS_FUNCTION_MON

Toggle function monitor. (Server)

OPS_LOCK_MON

Toggle lock monitor. (Server)

OPS_TRACK_MON

Toggle memory track monitor. (Server)

OPS_MIRROR_NOSWITCH

Don’t continue if mirror or primary fails. (Server)

OPS_MIRROR_TRM

A primary or mirror has been shutdown.

OPS_MEMORY_SWP

Memory swapping active.

OPS_AUTOISAM_TRN

Automatic ISAM transactions.

OPS_KEEPLOK_TRN

Keep locks involved in automatic transactions on record adds and updates after commit.

OPS_SERIAL_UPD

Changes GetSerialNbr() operation.

OPS_DEFER_CLOSE

Defer file closes or deletes during transactions.

OPS_CONV_STRING

Change all CT_STRING fields having a non-zero field length in the fixed length portion of the record buffer to CT_FSTRING fields. (Client)

OPS_DISK_IO

Set sysiocod on disk reads and writes.

state must be set with one of the following state values:

Operation State

Description

OPS_STATE_OFF

Turn a status bit off.

OPS_STATE_SET

Set the entire status word.

OPS_STATE_ON

Turn a status bit on.

OPS_STATE_RET

Return the entire status word.

Return Values

Value

Symbolic Constant

Explanation

0

NO_ERROR

No error occurred.

See Also

CTBase::GetOperation()

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