Enum tibco_ems_sys::tibemsAcknowledgeMode

#[repr(C)]
pub enum tibemsAcknowledgeMode {
    TIBEMS_SESSION_TRANSACTED,
    TIBEMS_AUTO_ACKNOWLEDGE,
    TIBEMS_CLIENT_ACKNOWLEDGE,
    TIBEMS_DUPS_OK_ACKNOWLEDGE,
    TIBEMS_NO_ACKNOWLEDGE,
    TIBEMS_EXPLICIT_CLIENT_ACKNOWLEDGE,
    TIBEMS_EXPLICIT_CLIENT_DUPS_OK_ACKNOWLEDGE,
}

acknowledgement types

Variants

TIBEMS_SESSION_TRANSACTED

transacted

TIBEMS_AUTO_ACKNOWLEDGE

In this mode, the session automatically acknowledges a message when message processing is finished—that is, when either of these calls returns successfully: synchronous receive calls (such as tibemsMsgConsumer_Receive) asynchronous listener callback (namely, tibemsMsgCallback)

TIBEMS_CLIENT_ACKNOWLEDGE

In this mode, the client program acknowledges receipt by calling tibemsMsg_Acknowledge. Each call acknowledges all messages received so far.

TIBEMS_DUPS_OK_ACKNOWLEDGE

As with TIBEMS_AUTO_ACKNOWLEDGE, the session automatically acknowledges messages. However, it may do so lazily. Lazy means that the provider client library can delay transferring the acknowledgement to the server until a convenient time; meanwhile the server might redeliver the message. Lazy acknowledgement can reduce session overhead.

TIBEMS_NO_ACKNOWLEDGE

In TIBEMS_NO_ACKNOWLEDGE mode, messages do not require acknowledgement (which reduces message overhead). The server never redelivers messages. This mode and behavior are proprietary extensions, specific to TIBCO EMS.

TIBEMS_EXPLICIT_CLIENT_ACKNOWLEDGE

As with TIBEMS_CLIENT_ACKNOWLEDGE, the client program acknowledges receipt by calling tibemsMsg_Acknowledge. However, each call acknowledges only the individual message. The client may acknowledge messages in any order. This mode and behavior are proprietary extensions, specific to TIBCO EMS.

TIBEMS_EXPLICIT_CLIENT_DUPS_OK_ACKNOWLEDGE

In this mode, the client program lazily acknowledges only the individual message, by calling tibemsMsg_Acknowledge. The client may acknowledge messages in any order. Lazy means that the provider client library can delay transferring the acknowledgement to the server until a convenient time; meanwhile the server might redeliver the message. This mode and behavior are proprietary extensions, specific to TIBCO EMS.

Trait Implementations

impl Debug for tibemsAcknowledgeMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.