Remove borrowed types from FFI; fixed_size_list constructor accepts u32

.github/workflows/rust-instrumented.yml

@@ -194,7 +194,7 @@ jobs:
           - sanitizer: tsan
             sanitizer_flags: "-Zsanitizer=thread"
     name: "Rust/C++ FFI tests (${{ matrix.sanitizer }})"
-    timeout-minutes: 30
+    timeout-minutes: 5
     env:
       ASAN_OPTIONS: "symbolize=1:check_initialization_order=1:detect_leaks=1:leak_check_at_exit=1"
       LSAN_OPTIONS: "report_objects=1"
@@ -217,9 +217,6 @@ jobs:
           sccache: s3
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7
       - uses: ./.github/actions/setup-prebuild
-      - name: Install rustfilt
-        run: |
-          cargo install rustfilt
       - name: Install Rust nightly toolchain
         run: |
           rustup toolchain install $NIGHTLY_TOOLCHAIN
@@ -241,8 +238,7 @@ jobs:
       - name: Run tests
         run: |
           set -o pipefail
-#         re-enable once we can fix this hang
-#         ./vortex-ffi/build/test/vortex_ffi_test 2>&1 | rustfilt
+          ./vortex-ffi/build/test/vortex_ffi_test
       - name: Run examples
         run: |
           set -o pipefail
@@ -251,11 +247,11 @@ jobs:
           # error: Unable to walk dir: File system loop found
           rm -fr vortex-ffi/build/_deps/nanoarrow-src/python
 
-          ./vortex-ffi/build/examples/write_sample file.vortex 2>&1 | rustfilt
-          ./vortex-ffi/build/examples/write_sample file2.vortex 2>&1 | rustfilt
-          ./vortex-ffi/build/examples/dtype '*.vortex' 2>&1 | rustfilt
-          ./vortex-ffi/build/examples/scan '*.vortex' 2>&1 | rustfilt
-          ./vortex-ffi/build/examples/scan_to_arrow '*.vortex' 2>&1 | rustfilt
+          ./vortex-ffi/build/examples/write_sample file.vortex
+          ./vortex-ffi/build/examples/write_sample file2.vortex
+          ./vortex-ffi/build/examples/dtype '*.vortex'
+          ./vortex-ffi/build/examples/scan '*.vortex'
+          ./vortex-ffi/build/examples/scan_to_arrow '*.vortex'
 
   miri:
     name: "Rust tests (miri)"

vortex-ffi/README.md

@@ -1,4 +1,4 @@
-# Vortex C interface
+# Vortex C bindings
 
 ## Updating Headers
 
@@ -20,7 +20,7 @@ target_link_libraries(my_target, vortex_ffi_shared)
 # or target_link_libraries(my_target, vortex_ffi)
 ```
 
-## Running C examples:
+## Running C examples
 
 ```sh
 cmake -Bbuild -DBUILD_EXAMPLES=1
@@ -99,7 +99,7 @@ cargo +nightly build -Zbuild-std --target=<target triple> \
 2. Build tests with target triple:
 
 ```sh
-cmake -Bbuild -DWITH_ASAN=1 -DTARGET_TRIPLE=<target triple>
+cmake -Bbuild -DSANITIZER=asan -DTARGET_TRIPLE=<target triple>
 ```
 
 3. Run the tests (ctest doesn't output failures in detail):

vortex-ffi/cbindgen.toml

@@ -11,9 +11,11 @@ header = """
 #pragma once
 #include <stdint.h>
 
-//
 // THIS FILE IS AUTO-GENERATED, DO NOT MAKE EDITS DIRECTLY
-//
+
+// All operations return owned types which need to be freed by calling a
+// matching _free() function. This includes all arrays, data sources, scans,
+// errors, error messages, and other allocated objects.
 
 // https://arrow.apache.org/docs/format/CDataInterface.html#structure-definitions
 // If you want to use your own Arrow library like nanoarrow, define this macro