Frank Quinn created PROTON-317: ---------------------------------- Summary: Feature Enhancement - API Exposure of underlying references to internal atoms Key: PROTON-317 URL: https://issues.apache.org/jira/browse/PROTON-317 Project: Qpid Proton Issue Type: Improvement Components: proton-c Affects Versions: 0.3 Environment: Linux / C implementation Reporter: Frank Quinn
We're currently creating a pn_message_t and iterating over it using the pn_data_t data type and the various convenience methods surrounding it. This is great for iteration but we were also hoping to have a way to *mark* a point in the payload for future realignment. I looked at get_message_id() but that always seems to return NULL. Let's take a pseudo example: pn_data_rewind (pn_data); while (pn_data_next (pn_data)) { pn_atom_t atom = pn_data_get_atom (pn_data); if(this_atom_might_be_useful) { // Mark this for potential modification later } } if (changes_are_required_based_on_a_combination_of_circumstances) { // Jump to earlier marker(s) // put in relevant update(s) } Is there anything we could use for this sort of use case? I want to avoid having to iterate *again* to find values, and I also want to be able to write functions which don't move (or move, then reset) the internal buffer pointers in proton. If there was something like a get_position() or set_position(), that would be perfect. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira