[PROTON-2429] [C] Introduce pn_msgid_t as an alias for pn_atom_t

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: proton-c-0.36.0
• Component/s: proton-c
• Assignee: Andrew Stitcher
• Reporter: Andrew Stitcher
• Created: 03/Sep/21 01:42
• Updated: 05/Nov/21 09:10
• Resolved: 29/Oct/21 16:10

Description

The purpose here is twofold: As a documentation aid to indicate that the parameter is only allowed to have a type that is valid for use as a message id (or correlation id). That is AMQP ulong, binary, utf8 string, uuid or null. Also as an aid to allowing the bindings to use this alias as a means to use a more restricted typemapping for parameters of this type. Swig supports doing this fairly neatly.