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Enhance Tags API #49
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Enhance Tags API #49
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ivoanjo
reviewed
Apr 12, 2022
Co-authored-by: Ivo Anjo <ivo.anjo@datadoghq.com>
Ivo thinks this will give a better result for this edge, and it made the code simpler, so I went for it. Also run cargo fmt.
ivoanjo
reviewed
Apr 13, 2022
| #[repr(C)] | ||
| pub struct ParseTagsResult { | ||
| tags: crate::Vec<Tag>, | ||
| error_message: Option<Box<crate::Vec<u8>>>, |
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Thanks for checking. Would it make sense to add it as a comment, so that it shows up on ffi.h?
Co-authored-by: Ivo Anjo <ivo.anjo@datadoghq.com>
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What does this PR do?
This adds back the tags FFI API and supports
DD_TAGSparsing.Fixes the exporter example.
Motivation
I want DD_TAGS parsing in PHP and it wasn't as simple as I hoped, so
trying to share the work here too.
Additional Notes
The
test_duptest is the one that would previously sigsgev (sometimes).Now that lifetimes and other things have been cleaned up, I can't get
it to sigsev anymore.
How to test the change?
Most
ddprof_ffi_Vec_tagfunctions are the same as before. The newfunction
ddprof_ffi_Vec_tag_parsetakes aCharSliceand returns aParseTagsResult:In this sense, it doesn't "fail" but returns a
Vec<Tag>of successfullyparsed tags, and an error message summarizing everything that failed.
I've tested this locally with an updated branch of dd-prof-php.