From fad8d7d32a08095c82af39f77e3280c52a7ab2ae Mon Sep 17 00:00:00 2001 From: Divy Srivastava Date: Wed, 27 Jul 2022 19:32:21 +0530 Subject: perf(ext/ffi): support Uint8Array in fast calls (#15319) --- test_ffi/src/lib.rs | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'test_ffi/src') diff --git a/test_ffi/src/lib.rs b/test_ffi/src/lib.rs index 95b7d900c..bc89bd66c 100644 --- a/test_ffi/src/lib.rs +++ b/test_ffi/src/lib.rs @@ -94,6 +94,16 @@ pub extern "C" fn add_f64(a: f64, b: f64) -> f64 { a + b } +#[no_mangle] +unsafe extern "C" fn hash(ptr: *const u8, length: u32) -> u32 { + let buf = std::slice::from_raw_parts(ptr, length as usize); + let mut hash: u32 = 0; + for byte in buf { + hash = hash.wrapping_mul(0x10001000).wrapping_add(*byte as u32); + } + hash +} + #[no_mangle] pub extern "C" fn sleep_blocking(ms: u64) { let duration = Duration::from_millis(ms); -- cgit v1.2.3