The Messenger Library provides tools for asynchronous or synchronous communication.
The Messenger Library is a software add-on for LabVIEW that includes a library you can use to pass messages between parallel processes. The add-on provides communication methods such as queues, user events, notifiers, and TCP messaging. You can configure simple forwarding addresses, which can send messages to multiple destinations, with modifications such as adding a prefix to the message label, relabeling, or substituting with a different message. The add-on supports messaging patterns such as request-reply and register-notify as well as scatter-gather for gathering replies from multiple senders into an array of messages. Additionally, the Messenger Library includes an option framework for dynamically launched VI "actors," as well as the Actor Manager debug tool.