The Message Queue Interface overview

Learn about the Message Queue Interface (MQI) components.

The Message Queue Interface consists of the following:

  • Calls through which programs can access the queue manager and its facilities
  • Structures that programs use to pass data to, and get data from, the queue manager
  • Elementary data types for passing data to, and getting data from, the queue manager
IBM MQ for z/OS® also supplies:

  • Two extra calls through which z/OS batch programs can commit and back out changes.
  • Data definition files (sometimes known as copy files, macros, include files, and header files) that define the values of constants supplied with IBM MQ for z/OS.
  • Stub programs to link-edit to our applications.
  • A suite of sample programs that demonstrate how to use the MQI on the z/OS platform. For further information about these samples, see Use the sample programs for z/OS.
IBM MQ for IBM i also supplies:

  • Data definition files (sometimes known as copy files, macros, include files, and header files) that define the values of constants supplied with IBM MQ for IBM i.
  • Three stub programs to link-edit to your ILE C, ILE COBOL, and ILE RPG applications.
  • A suite of sample programs that demonstrate how to use the MQI on the IBM i platform.
IBM MQ for Windows and IBM MQ on UNIX and Linux systems also supply:

  • Calls through which IBM MQ for Windows and IBM MQ on UNIX and Linux systems programs can commit and back out changes.
  • Include files that define the values of constants supplied on these platforms.
  • Library files to link our applications.
  • A suite of sample programs that demonstrate how to use the MQI on these platforms. For further information about these samples, see Use the sample programs on Multiplatforms.
  • Sample source and executable code for bindings to external transaction managers.
Use the following links to find out more about the MQI: