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# lr_end_sub_transaction

Marks the end of a sub-transaction.

    int lr_end_sub_transaction( char *sub_transaction, int status );

Alphabetical Listing - C Language Utility Functions

## Arguments

Name | Comments
--- | ---
sub_transaction | A string indicating the name of an existing sub-transaction.
status | The transaction status.

The lr_end_sub_transaction function marks the end of a sub-transaction. To mark the beginning of the sub-transaction, use the lr_start_sub_transaction function. You insert these functions immediately before and after the sub-transaction steps.

Multiple sub-transactions can be nested within a parent transaction, but each lr_end_sub_transaction statement must match an lr_start_sub_transaction statement or it will be interpreted as an illegal command.

## Return Values

This function returns 0 if it succeeds. It returns -1 if the transaction name is illegal or if there is no prior call to lr_start_transaction with a transaction of the same name.

## Parameterization

You cannot use standard parameterization for any arguments in this function.

## Example

In the following example, a sub-transaction called "electrical_purchases," performs purchases of six electrical items. If this sub-transaction is successful, the transaction status is recorded as LR_AUTO. The default value of LR_AUTO is LR_PASS. If the purchase is unsuccessful, the value is set as LR_FAIL.

     /* Notify that a transaction is starting */
    lr_start_transaction("purchases");
     /* Breakdown the transaction into a smaller transaction */
    lr_start_sub_transaction("electrical_purchases", "purchases");
    status = purchase_electrical_items(6); /* call to Server API */

     /* End transaction with operation result - pass or fail */

    if (status == 0)
        lr_end_sub_transaction("electrical_purchases", LR_AUTO);
    else
        lr_end_sub_transaction("electrical_purchases", LR_FAIL);

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