TX_INFO

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
EXAMPLE
BUGS
SEE ALSO
COPYING

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NAME

tx_info − Return transaction information

SYNOPSIS

#include <tx.h>

int tx_info(TXINFO *info);

For XATMI client link with −latmiclt −latmi −lubf −lnstd −lpthread −lrt −lm

For XATMI server link with −latmisrv|−latmisrvnomain|−latmisrvinteg −latmi −lubf −lnstd −lpthread −lrt −lm

DESCRIPTION

Function returns current transaction status information. This includes current control settings, timeout active XID. Information is returned in following structure

struct tx_info_t {
XID xid;
COMMIT_RETURN when_return;
TRANSACTION_CONTROL transaction_control;
TRANSACTION_TIMEOUT transaction_timeout;
TRANSACTION_STATE transaction_state;
};
typedef struct tx_info_t TXINFO;

Field xid is returned only in case if there is active transaction. If there is no transaction, then empty xid is returned (xid.formatID set to −1).

transaction_state may contain following values:

• TX_ACTIVE transaction is active.

• TX_TIMEOUT_ROLLBACK_ONLY transaction for current control thread is active, but transaction manager is not aware of transaction, thus it is assumed that there was timeout and transaction was rolled back.

• TX_ROLLBACK_ONLY transaction in current control thread is marked as rollback only.

Field when_return returns either TX_COMMIT_COMPLETED or TX_COMMIT_DECISION_LOGGED, set by tx_set_commit_return(3).

Field transaction_control returns either TX_UNCHAINED or TX_CHAINED set by tx_set_transaction_control(3).

Field transaction_timeout returns current timeout setting in seconds applied by tx_set_transaction_timeout(3).

RETURN VALUE

On success, and if there is transaction started, then tx_info() return 1, if there is no local transaction, 0 is returned. Nn error, error code is returned.

ERRORS

TX_PROTOCOL_ERROR The function was called in an improper context (for example, the caller has not yet called tx_open(3)).

TX_FAIL Transaction manager (tmsrv(8)) failed to return transaction information. For exact information, see either process and/or transaction manager logs

EXAMPLE

See atmitest/test021_xafull/atmiclt21tx.c for sample code.

BUGS

Report bugs to support@mavimax.com

SEE ALSO

tx_begin(3) tpcommit(3) tx_rollback(3) tx_info(3) tx_close(3) tx_set_transaction_timeout(3) tx_set_transaction_control(3) tx_set_commit_return(3)

COPYING

© Mavimax, Ltd

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