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MQBYTE

The MQBYTE data type represents a single byte of data. No particular interpretation is placed on the byte; it is treated as a string of bits, and not as a binary number or character. No special alignment is required.

When MQBYTE data is sent between queue managers that use different character sets or encodings, the MQBYTE data is not converted in any way. The MsgId and CorrelId fields in the MQMD structure are like this.

An array of MQBYTE is sometimes used to represent an area of main storage whose nature is not known to the queue manager. For example, the area might contain application message data or a structure. The boundary alignment of this area must be compatible with the nature of the data contained within it.

In the C programming language, any data type can be used for function parameters that are shown as arrays of MQBYTE. This is because such parameters are always passed by address, and in C the function parameter is declared as a pointer-to-void.

 

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