RMSEO (10-digit signed integer)

Offset of source environment data.

This field specifies the offset of the source environment data from the start of the MQRMH structure. Source environment data can be specified by the creator of the reference message, if that data is known to the creator. For example, on OS/2 the source environment data might be the directory path of the object containing the bulk data. However, if the creator does not know the source environment data, it is the responsibility of the user-supplied message exit to determine any environment information needed.

The length of the source environment data is given by RMSEL; if this length is zero, there is no source environment data, and RMSEO is ignored. If present, the source environment data must reside completely within RMLEN bytes from the start of the structure.

Applications should not assume that the environment data starts immediately after the last fixed field in the structure or that it is contiguous with any of the data addressed by the RMSNO, RMDEO, and RMDNO fields.

The initial value of this field is 0.