[syslog-ng] [PATCH 0/7] value-pairs dot notation walker

[Balazs Scheidler]

Hi,

applied all, thanks. I can see some potential performance issues though (lots of memory allocations in walking), that will probably be a bottleneck one day.

----- Original message -----
> The patches that will follow this overview soon implement a 'walker'
> for value-pairs, a way to walk the internal flat structure syslog-ng
> uses as if it was a tree. This is important for two modules in
> particular: $(format-json) and the mongodb destination.
> 
> The latter already supportes storing structured data, but it is using
> upserts (with all its downsides) to accomplish that. The former - up
> until now - was only able to format flat JSON.
> 
> With these patches, both change: $(format-json) becomes able to emit
> structured data, and the mongodb destination starts to use inserts.
> 
> The patches also merge the tfjson and jsonparser modules into a single
> json module, and implements our own JSON formatting for
> $(format-json). This means that json-glib support is completely
> removed, as it became unnecessary, and json-c is only used by the
> parser, but for practical reasons, required to build the plugin. That
> is, it is no longer possible to build $(format-json) only, but not
> json-parser, nor the other way around.
> 
> The final patch is a bonus, that corrects a small error in jsonparser,
> and stops it from emitting an assertion warning on stderr in certain
> cases.

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