Fix FFI and add support for Struct type #287
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Ported from https://github.com/jorgecarleitao/arrow2 Fix apache#20 Fix apache#251 Signed-off-by: roee88 <[email protected]>
|
ping @ritchie46 |
jorgecarleitao
approved these changes
May 13, 2021
There was a problem hiding this comment.
I went through this PR and the changes look good (I am a bit biased, though ^_^).
The only think I would change: remove the Clone from #derive[Debug, Clone]. In general is not a good practice to allow people to clone a struct containing pointers, as there is limited control over their lifetimes.
Arrow2 has it by mistake; I added it during some experiments and then abandoned it and forgot to remove the Clone from there.
Signed-off-by: roee88 <[email protected]>
Signed-off-by: roee88 <[email protected]>
alamb
reviewed
May 14, 2021
There was a problem hiding this comment.
I also wondered if this would fix #227 (aka miri reported issues):
RUST_BACKTRACE=1 MIRIFLAGS="-Zmiri-disable-isolation" cargo +nightly miri test -p arrow -- ffi
Sadly, it still fails on both this branch and master. On master it fails with:
running 12 tests
test array::ffi::tests::test_i64 ... error: Undefined Behavior: trying to reborrow for SharedReadOnly at alloc875771, but parent tag <2225913> does not have an appropriate item in the borrow stack
--> /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/unique.rs:118:18
|
118 | unsafe { &*self.as_ptr() }
| ^^^^^^^^^^^^^^^ trying to reborrow for SharedReadOnly at alloc875771, but parent tag <2225913> does not have an appropriate item in the borrow stack
|
= help: this indicates a potential bug in the program: it performed an invalid operation, but the rules it violated are still experimental
= help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information
= note: inside `std::ptr::Unique::<[*const std::ffi::c_void]>::as_ref` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/unique.rs:118:18
= note: inside `alloc::alloc::box_free::<[*const std::ffi::c_void], std::alloc::Global>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/alloc.rs:331:32
= note: inside `std::ptr::drop_in_place::<std::boxed::Box<[*const std::ffi::c_void]>> - shim(Some(std::boxed::Box<[*const std::ffi::c_void]>))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::ptr::drop_in_place::<ffi::PrivateData> - shim(Some(ffi::PrivateData))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::ptr::drop_in_place::<std::boxed::Box<ffi::PrivateData>> - shim(Some(std::boxed::Box<ffi::PrivateData>))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
note: inside `ffi::release_array` at arrow/src/ffi.rs:396:58
--> arrow/src/ffi.rs:396:58
|
396 | Box::from_raw(array.private_data as *mut PrivateData);
| ^
note: inside `<ffi::FFI_ArrowArray as std::ops::Drop>::drop` at arrow/src/ffi.rs:517:39
--> arrow/src/ffi.rs:517:39
|
517 | Some(release) => unsafe { release(self) },
| ^^^^^^^^^^^^^
= note: inside `std::ptr::drop_in_place::<ffi::FFI_ArrowArray> - shim(Some(ffi::FFI_ArrowArray))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::sync::Arc::<ffi::FFI_ArrowArray>::drop_slow` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/sync.rs:1039:18
= note: inside `<std::sync::Arc<ffi::FFI_ArrowArray> as std::ops::Drop>::drop` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/sync.rs:1571:13
= note: inside `std::ptr::drop_in_place::<std::sync::Arc<ffi::FFI_ArrowArray>> - shim(Some(std::sync::Arc<ffi::FFI_ArrowArray>))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::ptr::drop_in_place::<bytes::Deallocation> - shim(Some(bytes::Deallocation))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::ptr::drop_in_place::<bytes::Bytes> - shim(Some(bytes::Bytes))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::sync::Arc::<bytes::Bytes>::drop_slow` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/sync.rs:1039:18
= note: inside `<std::sync::Arc<bytes::Bytes> as std::ops::Drop>::drop` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/sync.rs:1571:13
= note: inside `std::ptr::drop_in_place::<std::sync::Arc<bytes::Bytes>> - shim(Some(std::sync::Arc<bytes::Bytes>))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::ptr::drop_in_place::<buffer::immutable::Buffer> - shim(Some(buffer::immutable::Buffer))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::ptr::drop_in_place::<bitmap::Bitmap> - shim(Some(bitmap::Bitmap))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::ptr::drop_in_place::<std::option::Option<bitmap::Bitmap>> - shim(Some(std::option::Option<bitmap::Bitmap>))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
= note: inside `std::ptr::drop_in_place::<array::data::ArrayData> - shim(Some(array::data::ArrayData))` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:192:1
note: inside `array::ffi::tests::test_round_trip` at arrow/src/array/ffi.rs:146:5
--> arrow/src/array/ffi.rs:146:5
|
146 | }
| ^
note: inside `array::ffi::tests::test_i64` at arrow/src/array/ffi.rs:166:9
--> arrow/src/array/ffi.rs:166:9
|
166 | test_round_trip(data)
| ^^^^^^^^^^^^^^^^^^^^^
note: inside closure at arrow/src/array/ffi.rs:163:5
--> arrow/src/array/ffi.rs:163:5
|
163 | / fn test_i64() -> Result<()> {
164 | | let array = Int64Array::from(vec![Some(2), None, Some(1), None]);
165 | | let data = array.data();
166 | | test_round_trip(data)
167 | | }
| |_____^
= note: inside `<[closure@arrow/src/array/ffi.rs:163:5: 167:6] as std::ops::FnOnce<()>>::call_once - shim` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:227:5
= note: inside `<fn() as std::ops::FnOnce<()>>::call_once - shim(fn())` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:227:5
= note: inside `test::__rust_begin_short_backtrace::<fn()>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:577:5
= note: inside closure at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:568:30
= note: inside `<[closure@test::run_test::{closure#2}] as std::ops::FnOnce<()>>::call_once - shim(vtable)` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:227:5
= note: inside `<std::boxed::Box<dyn std::ops::FnOnce() + std::marker::Send> as std::ops::FnOnce<()>>::call_once` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/alloc/src/boxed.rs:1546:9
= note: inside `<std::panic::AssertUnwindSafe<std::boxed::Box<dyn std::ops::FnOnce() + std::marker::Send>> as std::ops::FnOnce<()>>::call_once` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panic.rs:344:9
= note: inside `std::panicking::r#try::do_call::<std::panic::AssertUnwindSafe<std::boxed::Box<dyn std::ops::FnOnce() + std::marker::Send>>, ()>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:379:40
= note: inside `std::panicking::r#try::<(), std::panic::AssertUnwindSafe<std::boxed::Box<dyn std::ops::FnOnce() + std::marker::Send>>>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:343:19
= note: inside `std::panic::catch_unwind::<std::panic::AssertUnwindSafe<std::boxed::Box<dyn std::ops::FnOnce() + std::marker::Send>>, ()>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panic.rs:431:14
= note: inside `test::run_test_in_process` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:600:18
= note: inside closure at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:492:39
= note: inside `test::run_test::run_test_inner` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:530:13
= note: inside `test::run_test` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:564:28
= note: inside `test::run_tests::<[closure@test::run_tests_console::{closure#2}]>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:305:17
= note: inside `test::run_tests_console` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/console.rs:289:5
= note: inside `test::test_main` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:122:15
= note: inside `test::test_main_static` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/test/src/lib.rs:141:5
= note: inside `main`
= note: inside `<fn() as std::ops::FnOnce<()>>::call_once - shim(fn())` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:227:5
= note: inside `std::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys_common/backtrace.rs:125:18
= note: inside closure at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:49:18
= note: inside `std::ops::function::impls::<impl std::ops::FnOnce<()> for &dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe>::call_once` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:259:13
= note: inside `std::panicking::r#try::do_call::<&dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe, i32>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:379:40
= note: inside `std::panicking::r#try::<i32, &dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panicking.rs:343:19
= note: inside `std::panic::catch_unwind::<&dyn std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe, i32>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/panic.rs:431:14
= note: inside `std::rt::lang_start_internal` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:34:21
= note: inside `std::rt::lang_start::<()>` at /Users/alamb/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:48:5
= note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to previous error
error: test failed, to rerun pass '-p arrow --lib'
|
Nice work on this one! 👍 |
I have written on slack about this. I spent several hours on this but couldn't understand why dereferencing the raw pointer (to get the inner raw pointer) pops the borrow. I did test with miri but had to disable stacked borrows as suggested by @jorgecarleitao. |
|
@alamb , we are unable to distinguish if that is a false positive or a problem on our side. It is on my todo list to write to MIRI team to help us here. |
Codecov Report
@@ Coverage Diff @@
## master #287 +/- ##
==========================================
- Coverage 82.56% 82.52% -0.04%
==========================================
Files 162 162
Lines 43896 44005 +109
==========================================
+ Hits 36241 36316 +75
- Misses 7655 7689 +34
Continue to review full report at Codecov.
|
alamb
approved these changes
May 16, 2021
There was a problem hiding this comment.
I didn't review this carefully but I trust @jorgecarleitao's analysis -- I think this is good to merge from my perspective
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Which issue does this PR close?
Closes #20
Closes #251
Rationale for this change
This PR ports fixes from jorgecarleitao/arrow2#67 to this repository (thanks @jorgecarleitao).
The original API is unchanged and it's not a 1-1 port. Please review carefully.
What changes are included in this PR?
Are there any user-facing changes?
No changes to the API.
Exporting/Importing StructArray should work now, but the previous lack of support is not documented anyway.