man3rmt/lclAddWrtLockAns

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Name

lclAddWrtLockAns - local - add a write lock and wait for an answer

Description

lclAddWrtLockAns passes a write lock request to dbman. dbman returns a message indicating success or failure of the request. The current value of the datapoint is also returned and may be used as a starting point for updates.

The request is passed in local mode.

This function is part of librmt.

Syntax

int lclAddWrtLockAns (
int fo
LABEL *Lpnt,
DESC *Dpnt,
double *V,
int send_verbosity,
int recv_verbosity
);

Arguments

fo

The file descriptor for the connection to dbman.

Lpnt

pointer to LABEL associated with datapoint.

Dpnt

pointer to DESC associated with datapoint.

V

pointer to variable to place current datapoint value.

send_verbosity

Defines the amount of messages to print. This value is passed on to SendRec. A value of 0 produces no messages. See the SendRec manpage for full details on available values.

recv_verbosity

Defines the amount of messages to print. This value is passed on to RecvRec. A value of 0 produces no messages. See the RecvRec manpage for full details on available values.

Return Values

ERRok is returned if the transaction is successful.
ERRbadp is returned for bad pointers.
ERRlock is returned if a lock is already present.
ERRwp is returned if the caller doesn’t have write permission.
The error code from the transaction is returned if there is a communications error.

See Also

librmt(3rmt)

Manual page revision

$Id: lclAddWrtLockAns.3,v 1.2 2008/08/22 16:21:09 mcnamer Exp $

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