Add support for registring custom op libraries #68
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…rom a tensor This is some prep work for string output types and tensor types that vary across the model outputs. For now, the supported types are just the basic numeric types. Since strings have to be copied out of a tensor, it only makes sense to have `String` be an output type, not `str`, hence the new type so that we can have more input types supported than output types.
Outputs aren't all the same type for a single model, so this allows extracting different types per tensor.
marshallpierce
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Mar 9, 2021
| @@ -0,0 +1,118 @@ | |||
| # onnxruntime requires execinfo.h to build, which only works on glibc-based systems, so alpine is out... | |||
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This dockerfile sets up onnxruntime and ort-customops so that the "regex" model can run. Not sure how best to integrate this into CI.
| #[cfg(windows)] | ||
| fn close_lib_handle(handle: *mut ::std::os::raw::c_void) { | ||
| unsafe { | ||
| winapi::um::libloaderapi::FreeLibrary(handle as winapi::shared::minwindef::HINSTANCE) |
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I'm not sure this works but it does at least compile on windows.
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This approach allocates owned Strings for each element, which works, but stresses the allocator, and incurs unnecessary copying. Part of the complication stems from the limitation that in Rust, a field can't be a reference to another field in the same struct. This means that having a Vec<u8> of copied data, referred to by a Vec<&str>, which is then referred to by an ArrayView, requires a sequence of 3 structs to express. Building a Vec<String> gets rid of the references, but also loses the efficiency of 1 allocation with strs pointing into it.
This approach allocates owned Strings for each element, which works, but stresses the allocator, and incurs unnecessary copying. Part of the complication stems from the limitation that in Rust, a field can't be a reference to another field in the same struct. This means that having a Vec<u8> of copied data, referred to by a Vec<&str>, which is then referred to by an ArrayView, requires a sequence of 3 structs to express. Building a Vec<String> gets rid of the references, but also loses the efficiency of 1 allocation with strs pointing into it.
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Codecov Report
@@ Coverage Diff @@
## master #68 +/- ##
===========================================
+ Coverage 14.58% 43.29% +28.71%
===========================================
Files 18 19 +1
Lines 960 1111 +151
===========================================
+ Hits 140 481 +341
+ Misses 820 630 -190
Continue to review full report at Codecov.
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Based on #67.