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+[profile.release] +opt-level = 3 +lto = "thin" +codegen-units = 1 +panic = "abort" +strip = true + +[profile.dev] +debug = true +opt-level = 0 diff --git a/native_rust/common/Cargo.toml b/native_rust/common/Cargo.toml new file mode 100644 index 0000000..a9e1bdf --- /dev/null +++ b/native_rust/common/Cargo.toml @@ -0,0 +1,16 @@ +[package] +name = "common" +version.workspace = true +edition.workspace = true +authors.workspace = true +license.workspace = true +rust-version.workspace = true + +[lib] +crate-type = ["rlib"] + +[dependencies] +libc = { workspace = true } + +[dev-dependencies] +tempfile = "3.10" diff --git a/native_rust/common/src/lib.rs b/native_rust/common/src/lib.rs new file mode 100644 index 0000000..ad657cd --- /dev/null +++ b/native_rust/common/src/lib.rs @@ -0,0 +1,145 @@ +//! Common FFI utilities for native libraries +//! +//! Provides safe wrappers for FFI boundary operations including: +//! - Panic recovery at FFI boundaries +//! - String conversion between C and Rust +//! - Error handling patterns + +use std::ffi::{CStr, CString}; +use std::os::raw::{c_char, c_int}; +use std::ptr; + +/// Recover from panics at FFI boundaries, returning a safe default +/// +/// # Safety +/// The closure should not leak resources on panic +pub unsafe fn ffi_boundary(f: impl FnOnce() -> T + std::panic::UnwindSafe) -> Option { + match std::panic::catch_unwind(f) { + Ok(result) => Some(result), + Err(_) => { + eprintln!("FFI boundary panic caught and recovered"); + None + } + } +} + +/// Convert C string to Rust String +/// +/// # Safety +/// ptr must be a valid null-terminated UTF-8 string or null +pub unsafe fn c_str_to_string(ptr: *const c_char) -> Option { + if ptr.is_null() { + return None; + } + + CStr::from_ptr(ptr) + .to_str() + .ok() + .map(|s| s.to_string()) +} + +/// Convert Rust String to C string (leaked, caller must free) +/// +/// Returns null on error. On success, returns a pointer that must be freed with `free_string`. +pub fn string_to_c_str(s: &str) -> *mut c_char { + match CString::new(s) { + Ok(cstring) => cstring.into_raw(), + Err(_) => ptr::null_mut(), + } +} + +/// Free a string previously created by `string_to_c_str` +/// +/// # Safety +/// ptr must be a string previously returned by string_to_c_str, or null +pub unsafe fn free_string(ptr: *mut c_char) { + if !ptr.is_null() { + let _ = CString::from_raw(ptr); + } +} + +/// Set an error code and message +/// +/// # Safety +/// This function dereferences raw pointers and is unsafe. +/// Caller must ensure error_ptr is valid or null. +/// +/// Returns -1 for error, caller should return this from FFI function +pub unsafe fn set_error(error_ptr: *mut *const c_char, msg: &str) -> c_int { + if !error_ptr.is_null() { + *error_ptr = string_to_c_str(msg); + } + -1 +} + +/// FFI-safe result type for boolean operations +pub type FfiResult = c_int; +pub const FFI_OK: FfiResult = 0; +pub const FFI_ERROR: FfiResult = -1; + +/// Thread-local error storage for FFI boundaries +pub mod error { + use std::cell::RefCell; + + thread_local! { + static LAST_ERROR: RefCell> = const { RefCell::new(None) }; + } + + /// Store an error message + pub fn set_error(msg: impl Into) { + LAST_ERROR.with(|e| { + *e.borrow_mut() = Some(msg.into()); + }); + } + + /// Get and clear the last error + pub fn take_error() -> Option { + LAST_ERROR.with(|e| e.borrow_mut().take()) + } + + /// Peek at the last error without clearing + pub fn peek_error() -> Option { + LAST_ERROR.with(|e| e.borrow().clone()) + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_c_str_roundtrip() { + let original = "hello world"; + let c_ptr = string_to_c_str(original); + assert!(!c_ptr.is_null()); + + unsafe { + let recovered = c_str_to_string(c_ptr); + assert_eq!(recovered, Some(original.to_string())); + free_string(c_ptr); + } + } + + #[test] + fn test_null_handling() { + unsafe { + assert_eq!(c_str_to_string(ptr::null()), None); + free_string(ptr::null_mut()); // Should not panic + } + } + + #[test] + fn test_ffi_boundary_recovery() { + unsafe { + // Normal case + let result = ffi_boundary(|| 42); + assert_eq!(result, Some(42)); + + // Panic case - should recover + let result = ffi_boundary::<()>(|| { + panic!("test panic"); + }); + assert_eq!(result, None); + } + } +} diff --git a/native_rust/dataset_hash/Cargo.toml b/native_rust/dataset_hash/Cargo.toml new file mode 100644 index 0000000..5ce28a2 --- /dev/null +++ b/native_rust/dataset_hash/Cargo.toml @@ -0,0 +1,32 @@ +[package] +name = "dataset_hash" +version.workspace = true +edition.workspace = true +authors.workspace = true +license.workspace = true +rust-version.workspace = true + +[lib] +crate-type = ["cdylib", "staticlib", "rlib"] + +[dependencies] +common = { path = "../common" } + +# Workspace dependencies +libc = { workspace = true } +thiserror = { workspace = true } +anyhow = { workspace = true } +blake3 = { workspace = true } +serde = { workspace = true } +serde_json = { workspace = true } + +# Minimal additional dependencies +walkdir = "2.5" # ~5 deps for recursive directory walking + +[dev-dependencies] +tempfile = { workspace = true } +criterion = { version = "0.5", features = ["html_reports"] } + +[[bench]] +name = "hash_benchmark" +harness = false diff --git a/native_rust/dataset_hash/benches/hash_benchmark.rs b/native_rust/dataset_hash/benches/hash_benchmark.rs new file mode 100644 index 0000000..82a879c --- /dev/null +++ b/native_rust/dataset_hash/benches/hash_benchmark.rs @@ -0,0 +1,76 @@ +//! Benchmarks for dataset_hash +//! +//! Compares BLAKE3 hashing performance + +use criterion::{black_box, criterion_group, criterion_main, Criterion}; +use dataset_hash::{hash_file, hash_directory_batch, hash_directory_combined}; +use std::io::Write; +use tempfile::TempDir; + +fn create_test_file(dir: &TempDir, name: &str, size: usize) -> std::path::PathBuf { + let path = dir.path().join(name); + let mut file = std::fs::File::create(&path).unwrap(); + let data = vec![0u8; size]; + file.write_all(&data).unwrap(); + path +} + +fn bench_hash_file_small(c: &mut Criterion) { + let temp = TempDir::new().unwrap(); + let path = create_test_file(&temp, "small.bin", 1024); // 1KB + + c.bench_function("rust_hash_file_1kb", |b| { + b.iter(|| { + black_box(hash_file(&path).unwrap()); + }); + }); +} + +fn bench_hash_file_medium(c: &mut Criterion) { + let temp = TempDir::new().unwrap(); + let path = create_test_file(&temp, "medium.bin", 1024 * 1024); // 1MB + + c.bench_function("rust_hash_file_1mb", |b| { + b.iter(|| { + black_box(hash_file(&path).unwrap()); + }); + }); +} + +fn bench_hash_directory_batch(c: &mut Criterion) { + let temp = TempDir::new().unwrap(); + + // Create 100 small files + for i in 0..100 { + create_test_file(&temp, &format!("file_{}.bin", i), 1024); + } + + c.bench_function("rust_hash_dir_100files", |b| { + b.iter(|| { + black_box(hash_directory_batch(temp.path()).unwrap()); + }); + }); +} + +fn bench_hash_directory_combined(c: &mut Criterion) { + let temp = TempDir::new().unwrap(); + + // Create 100 small files + for i in 0..100 { + create_test_file(&temp, &format!("file_{}.bin", i), 1024); + } + + c.bench_function("rust_hash_dir_combined", |b| { + b.iter(|| { + black_box(hash_directory_combined(temp.path()).unwrap()); + }); + }); +} + +criterion_group!(benches, + bench_hash_file_small, + bench_hash_file_medium, + bench_hash_directory_batch, + bench_hash_directory_combined +); +criterion_main!(benches); diff --git a/native_rust/dataset_hash/include/dataset_hash.h b/native_rust/dataset_hash/include/dataset_hash.h new file mode 100644 index 0000000..b864055 --- /dev/null +++ b/native_rust/dataset_hash/include/dataset_hash.h @@ -0,0 +1,28 @@ +#ifndef DATASET_HASH_H +#define DATASET_HASH_H + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +// Hash a directory and return combined digest +// dir: path to directory +// out_hash: output parameter, receives allocated hex string (caller must free with fh_free_string) +// Returns: 0 on success, -1 on error +int fh_hash_directory_combined(const char* dir, char** out_hash); + +// Free a string previously returned by FFI functions +void fh_free_string(char* s); + +// Get metrics in Prometheus format +// Returns: allocated string with metrics (caller must free with fh_free_string) +char* fh_get_metrics(void); + +#ifdef __cplusplus +} +#endif + +#endif // DATASET_HASH_H diff --git a/native_rust/dataset_hash/src/lib.rs b/native_rust/dataset_hash/src/lib.rs new file mode 100644 index 0000000..194fdfc --- /dev/null +++ b/native_rust/dataset_hash/src/lib.rs @@ -0,0 +1,218 @@ +//! Dataset Hash - Parallel file hashing with BLAKE3 +//! +//! Provides high-performance parallel hashing using BLAKE3's built-in SIMD dispatch. +//! Supports both single-file and batch directory hashing with deterministic ordering. + +use std::ffi::{CStr, CString}; +use std::fs::File; +use std::io::{self, BufReader, Read}; +use std::os::raw::{c_char, c_int}; +use std::path::{Path, PathBuf}; +use walkdir::WalkDir; + +mod metrics; +pub use metrics::NativeMetrics; + +/// Hash a single file using BLAKE3 +/// +/// BLAKE3 has built-in SIMD dispatch for AVX2, AVX-512, and NEON. +/// No hand-rolled intrinsics needed. +pub fn hash_file(path: &Path) -> io::Result { + let file = File::open(path)?; + let mut reader = BufReader::with_capacity(64 * 1024, file); // 64KB buffer + + let mut hasher = blake3::Hasher::new(); + let mut buffer = [0u8; 64 * 1024]; + + loop { + let n = reader.read(&mut buffer)?; + if n == 0 { + break; + } + hasher.update(&buffer[..n]); + } + + Ok(hasher.finalize().to_hex().to_string()) +} + +/// Collect all files in a directory, sorted deterministically +/// +/// Security: excludes hidden files (starting with '.') and symlinks +pub fn collect_files(dir: &Path) -> io::Result> { + let mut files: Vec = WalkDir::new(dir) + .max_depth(32) // Prevent infinite recursion + .follow_links(false) // Security: no symlink traversal + .into_iter() + .filter_map(|e| e.ok()) + .filter(|e| { + let path = e.path(); + let is_file = e.file_type().is_file(); + // Check if any component of the path (relative to dir) is hidden + let not_hidden = !path.strip_prefix(dir) + .unwrap_or(path) + .components() + .any(|c| { + c.as_os_str() + .to_str() + .map(|s| s.starts_with('.') && s != ".") + .unwrap_or(false) + }); + is_file && not_hidden + }) + .map(|e| e.path().to_path_buf()) + .collect(); + + // Deterministic ordering: byte-level comparison (OS-locale independent) + files.sort_unstable_by(|a, b| a.as_os_str().cmp(b.as_os_str())); + + Ok(files) +} + +/// Hash all files in a directory (sequential for deterministic ordering) +/// +/// Returns sorted (path, hash) pairs for deterministic output +pub fn hash_directory_batch(dir: &Path) -> io::Result> { + let files = collect_files(dir)?; + + // Sequential hash - deterministic order + let results: Vec<(String, io::Result)> = files + .into_iter() + .map(|path| { + let path_str = path.to_string_lossy().to_string(); + let hash = hash_file(&path); + (path_str, hash) + }) + .collect(); + + // Convert to final format, propagating errors + let mut output: Vec<(String, String)> = Vec::with_capacity(results.len()); + for (path, hash_result) in results { + match hash_result { + Ok(hash) => output.push((path, hash)), + Err(e) => return Err(e), + } + } + + Ok(output) +} + +/// Combined hash of entire directory (single digest) +/// +/// This hashes all files and then hashes the concatenation of their hashes, +/// providing a single digest for the entire directory. +pub fn hash_directory_combined(dir: &Path) -> io::Result { + let pairs = hash_directory_batch(dir)?; + + let mut hasher = blake3::Hasher::new(); + for (path, hash) in &pairs { + hasher.update(path.as_bytes()); + hasher.update(hash.as_bytes()); + } + + Ok(hasher.finalize().to_hex().to_string()) +} + +// ============================================================================ +// FFI Interface +// ============================================================================ + +/// Hash a directory and return combined digest +/// +/// # Safety +/// dir must be a valid null-terminated UTF-8 path string +#[no_mangle] +pub unsafe extern "C" fn fh_hash_directory_combined( + dir: *const c_char, + out_hash: *mut *mut c_char, +) -> c_int { + if dir.is_null() || out_hash.is_null() { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let dir_str = match CStr::from_ptr(dir).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let dir_path = Path::new(dir_str); + + match hash_directory_combined(dir_path) { + Ok(hash) => { + let c_hash = match CString::new(hash) { + Ok(s) => s, + Err(_) => return -1, + }; + *out_hash = c_hash.into_raw(); + 0 + } + Err(_) => -1, + } + }); + + match result { + Ok(rc) => rc, + Err(_) => { + eprintln!("Panic in fh_hash_directory_combined"); + -1 + } + } +} + +/// Free a string previously returned by FFI functions +/// +/// # Safety +/// s must be a string previously returned by an FFI function, or null +#[no_mangle] +pub unsafe extern "C" fn fh_free_string(s: *mut c_char) { + if !s.is_null() { + let _ = CString::from_raw(s); + } +} + +#[cfg(test)] +mod tests { + use super::*; + use tempfile::TempDir; + use std::fs; + + #[test] + fn test_hash_file() { + let temp = TempDir::new().unwrap(); + let file_path = temp.path().join("test.txt"); + fs::write(&file_path, "hello world").unwrap(); + + let hash1 = hash_file(&file_path).unwrap(); + let hash2 = hash_file(&file_path).unwrap(); + + // Hash should be deterministic + assert_eq!(hash1, hash2); + // BLAKE3 produces 64-char hex strings + assert_eq!(hash1.len(), 64); + } + + #[test] + fn test_collect_files_excludes_hidden() { + let temp = TempDir::new().unwrap(); + fs::write(temp.path().join("visible.txt"), "data").unwrap(); + fs::write(temp.path().join(".hidden"), "data").unwrap(); + + let files = collect_files(temp.path()).unwrap(); + assert_eq!(files.len(), 1); + assert!(files[0].file_name().unwrap() == "visible.txt"); + } + + #[test] + fn test_hash_directory_combined() { + let temp = TempDir::new().unwrap(); + fs::write(temp.path().join("a.txt"), "AAA").unwrap(); + fs::write(temp.path().join("b.txt"), "BBB").unwrap(); + + let hash1 = hash_directory_combined(temp.path()).unwrap(); + let hash2 = hash_directory_combined(temp.path()).unwrap(); + + // Combined hash should be deterministic + assert_eq!(hash1, hash2); + assert_eq!(hash1.len(), 64); + } +} diff --git a/native_rust/dataset_hash/src/metrics.rs b/native_rust/dataset_hash/src/metrics.rs new file mode 100644 index 0000000..a552372 --- /dev/null +++ b/native_rust/dataset_hash/src/metrics.rs @@ -0,0 +1,100 @@ +//! Minimal metrics implementation - no prometheus dependency +//! +//! Provides lightweight atomic counters that can be exported as Prometheus format +//! without pulling in the full prometheus client library (~20 deps). + +use std::sync::atomic::{AtomicU64, Ordering}; + +/// Lightweight metrics for the native library +pub struct NativeMetrics { + hash_duration_ns: AtomicU64, + hash_operations: AtomicU64, + panic_recoveries: AtomicU64, +} + +impl NativeMetrics { + /// Create new metrics instance + pub const fn new() -> Self { + Self { + hash_duration_ns: AtomicU64::new(0), + hash_operations: AtomicU64::new(0), + panic_recoveries: AtomicU64::new(0), + } + } + + /// Record a hash operation with its duration + pub fn record_hash(&self, duration_ns: u64) { + self.hash_operations.fetch_add(1, Ordering::Relaxed); + self.hash_duration_ns.fetch_add(duration_ns, Ordering::Relaxed); + } + + /// Record a panic recovery at FFI boundary + pub fn record_panic_recovery(&self) { + self.panic_recoveries.fetch_add(1, Ordering::Relaxed); + } + + /// Export metrics in Prometheus text format + pub fn export_prometheus(&self) -> String { + let ops = self.hash_operations.load(Ordering::Relaxed); + let duration_sec = self.hash_duration_ns.load(Ordering::Relaxed) as f64 / 1e9; + let panics = self.panic_recoveries.load(Ordering::Relaxed); + + format!( + "# TYPE native_hash_operations_total counter\n\ + native_hash_operations_total {}\n\ + # TYPE native_hash_duration_seconds counter\n\ + native_hash_duration_seconds {:.9}\n\ + # TYPE native_panic_recoveries_total counter\n\ + native_panic_recoveries_total {}\n", + ops, duration_sec, panics + ) + } + + /// Get average hash duration in nanoseconds + pub fn avg_duration_ns(&self) -> u64 { + let ops = self.hash_operations.load(Ordering::Relaxed); + let duration = self.hash_duration_ns.load(Ordering::Relaxed); + + if ops == 0 { + 0 + } else { + duration / ops + } + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_metrics_recording() { + let metrics = NativeMetrics::new(); + + metrics.record_hash(1_000_000); // 1ms + metrics.record_hash(2_000_000); // 2ms + + assert_eq!(metrics.hash_operations.load(Ordering::Relaxed), 2); + assert_eq!(metrics.hash_duration_ns.load(Ordering::Relaxed), 3_000_000); + assert_eq!(metrics.avg_duration_ns(), 1_500_000); + } + + #[test] + fn test_prometheus_export() { + let metrics = NativeMetrics::new(); + metrics.record_hash(1_000_000_000); // 1 second + + let output = metrics.export_prometheus(); + assert!(output.contains("native_hash_operations_total 1")); + assert!(output.contains("native_hash_duration_seconds 1.000000000")); + } + + #[test] + fn test_panic_recovery() { + let metrics = NativeMetrics::new(); + metrics.record_panic_recovery(); + metrics.record_panic_recovery(); + + assert_eq!(metrics.panic_recoveries.load(Ordering::Relaxed), 2); + } +} diff --git a/native_rust/dataset_hash/tests/integration.rs b/native_rust/dataset_hash/tests/integration.rs new file mode 100644 index 0000000..d89cc8d --- /dev/null +++ b/native_rust/dataset_hash/tests/integration.rs @@ -0,0 +1,177 @@ +//! Integration tests for dataset_hash +//! +//! Tests file hashing with various file sizes and edge cases. + +use std::fs; +use tempfile::TempDir; + +// Import the crate +use dataset_hash::{collect_files, hash_directory_batch, hash_directory_combined, hash_file}; + +#[test] +fn test_hash_file_basic() { + let temp = TempDir::new().unwrap(); + let file_path = temp.path().join("test.txt"); + fs::write(&file_path, "hello world").unwrap(); + + let hash1 = hash_file(&file_path).unwrap(); + let hash2 = hash_file(&file_path).unwrap(); + + // Hash should be deterministic + assert_eq!(hash1, hash2); + // BLAKE3 produces 64-char hex strings + assert_eq!(hash1.len(), 64); +} + +#[test] +fn test_hash_file_empty() { + let temp = TempDir::new().unwrap(); + let file_path = temp.path().join("empty.txt"); + fs::write(&file_path, "").unwrap(); + + let hash = hash_file(&file_path).unwrap(); + assert_eq!(hash.len(), 64); +} + +#[test] +fn test_hash_file_large() { + let temp = TempDir::new().unwrap(); + let file_path = temp.path().join("large.bin"); + + // Create 10MB file + let data = vec![0u8; 10 * 1024 * 1024]; + fs::write(&file_path, &data).unwrap(); + + let hash = hash_file(&file_path).unwrap(); + assert_eq!(hash.len(), 64); +} + +#[test] +fn test_hash_file_different_content() { + let temp = TempDir::new().unwrap(); + let file1 = temp.path().join("file1.txt"); + let file2 = temp.path().join("file2.txt"); + + fs::write(&file1, "content A").unwrap(); + fs::write(&file2, "content B").unwrap(); + + let hash1 = hash_file(&file1).unwrap(); + let hash2 = hash_file(&file2).unwrap(); + + assert_ne!(hash1, hash2); +} + +#[test] +fn test_collect_files_excludes_hidden() { + let temp = TempDir::new().unwrap(); + fs::write(temp.path().join("visible.txt"), "data").unwrap(); + fs::write(temp.path().join(".hidden"), "data").unwrap(); + + // Create hidden directory and file inside it + let hidden_dir = temp.path().join(".hidden_dir"); + fs::create_dir(&hidden_dir).unwrap(); + fs::write(hidden_dir.join("file.txt"), "data").unwrap(); + + let files = collect_files(temp.path()).unwrap(); + assert_eq!(files.len(), 1); + assert!(files[0].file_name().unwrap() == "visible.txt"); +} + +#[test] +fn test_collect_files_sorted() { + let temp = TempDir::new().unwrap(); + fs::write(temp.path().join("z.txt"), "z").unwrap(); + fs::write(temp.path().join("a.txt"), "a").unwrap(); + fs::write(temp.path().join("m.txt"), "m").unwrap(); + + let files = collect_files(temp.path()).unwrap(); + assert_eq!(files.len(), 3); + assert!(files[0].file_name().unwrap() == "a.txt"); + assert!(files[1].file_name().unwrap() == "m.txt"); + assert!(files[2].file_name().unwrap() == "z.txt"); +} + +#[test] +fn test_hash_directory_batch() { + let temp = TempDir::new().unwrap(); + fs::write(temp.path().join("a.txt"), "AAA").unwrap(); + fs::write(temp.path().join("b.txt"), "BBB").unwrap(); + + let pairs = hash_directory_batch(temp.path()).unwrap(); + assert_eq!(pairs.len(), 2); + + // Verify each file has a hash + for (path, hash) in &pairs { + assert!(path.ends_with(".txt")); + assert_eq!(hash.len(), 64); + } +} + +#[test] +fn test_hash_directory_combined() { + let temp = TempDir::new().unwrap(); + fs::write(temp.path().join("a.txt"), "AAA").unwrap(); + fs::write(temp.path().join("b.txt"), "BBB").unwrap(); + + let hash1 = hash_directory_combined(temp.path()).unwrap(); + let hash2 = hash_directory_combined(temp.path()).unwrap(); + + // Combined hash should be deterministic + assert_eq!(hash1, hash2); + assert_eq!(hash1.len(), 64); +} + +#[test] +fn test_hash_directory_combined_changes_with_content() { + let temp = TempDir::new().unwrap(); + fs::write(temp.path().join("file.txt"), "content").unwrap(); + + let hash1 = hash_directory_combined(temp.path()).unwrap(); + + // Modify file + fs::write(temp.path().join("file.txt"), "modified").unwrap(); + + let hash2 = hash_directory_combined(temp.path()).unwrap(); + + assert_ne!(hash1, hash2); +} + +#[test] +fn test_collect_files_no_symlinks() { + let temp = TempDir::new().unwrap(); + let real_file = temp.path().join("real.txt"); + let symlink = temp.path().join("link.txt"); + + fs::write(&real_file, "data").unwrap(); + #[cfg(unix)] + std::os::unix::fs::symlink(&real_file, &symlink).unwrap(); + + let files = collect_files(temp.path()).unwrap(); + // Should only include the real file, not the symlink + assert_eq!(files.len(), 1); +} + +#[test] +fn test_hash_directory_empty() { + let temp = TempDir::new().unwrap(); + + let pairs = hash_directory_batch(temp.path()).unwrap(); + assert!(pairs.is_empty()); + + let combined = hash_directory_combined(temp.path()).unwrap(); + // Empty directory should still produce a valid hash + assert_eq!(combined.len(), 64); +} + +#[test] +fn test_hash_directory_nested() { + let temp = TempDir::new().unwrap(); + let subdir = temp.path().join("subdir"); + fs::create_dir(&subdir).unwrap(); + + fs::write(temp.path().join("root.txt"), "root").unwrap(); + fs::write(subdir.join("nested.txt"), "nested").unwrap(); + + let pairs = hash_directory_batch(temp.path()).unwrap(); + assert_eq!(pairs.len(), 2); +} diff --git a/native_rust/deny.toml b/native_rust/deny.toml new file mode 100644 index 0000000..01d72fc --- /dev/null +++ b/native_rust/deny.toml @@ -0,0 +1,18 @@ +[advisories] +yanked = "deny" + +[licenses] +allow = ["MIT", "Apache-2.0", "BSD-3-Clause", "ISC", "Unicode-DFS-2016"] +deny = ["GPL-2.0", "GPL-3.0"] +confidence-threshold = 0.8 + +[bans] +multiple-versions = "warn" +wildcards = "allow" + +[sources] +unknown-registry = "deny" +unknown-git = "deny" + +[sources.allow-org] +github = ["dtolnay", "tokio-rs", "crossbeam-rs", "blake3-team"] diff --git a/native_rust/queue_index/Cargo.toml b/native_rust/queue_index/Cargo.toml new file mode 100644 index 0000000..a66389d --- /dev/null +++ b/native_rust/queue_index/Cargo.toml @@ -0,0 +1,32 @@ +[package] +name = "queue_index" +version.workspace = true +edition.workspace = true +authors.workspace = true +license.workspace = true +rust-version.workspace = true + +[lib] +crate-type = ["cdylib", "staticlib", "rlib"] + +[dependencies] +common = { path = "../common" } + +# Workspace dependencies +libc = { workspace = true } +thiserror = { workspace = true } +anyhow = { workspace = true } +memmap2 = { workspace = true } +serde = { workspace = true } +serde_json = { workspace = true } + +# Minimal additional dependencies +chrono = { version = "0.4", features = ["serde"] } + +[dev-dependencies] +tempfile = { workspace = true } +criterion = { version = "0.5", features = ["html_reports"] } + +[[bench]] +name = "queue_benchmark" +harness = false diff --git a/native_rust/queue_index/benches/queue_benchmark.rs b/native_rust/queue_index/benches/queue_benchmark.rs new file mode 100644 index 0000000..c622ef8 --- /dev/null +++ b/native_rust/queue_index/benches/queue_benchmark.rs @@ -0,0 +1,71 @@ +//! Benchmarks for queue_index +//! +//! Compares Rust implementation against theoretical Go/C++ performance + +use criterion::{black_box, criterion_group, criterion_main, Criterion, BatchSize}; +use queue_index::{QueueIndex, Task}; +use tempfile::TempDir; + +fn bench_add_tasks(c: &mut Criterion) { + c.bench_function("rust_queue_add_100", |b| { + b.iter_batched( + || { + let temp = TempDir::new().unwrap(); + QueueIndex::open(temp.path()).unwrap() + }, + |mut index| { + let tasks: Vec = (0..100) + .map(|i| Task::new(&format!("task-{}", i), "bench-job")) + .collect(); + black_box(index.add_tasks(&tasks).unwrap()); + }, + BatchSize::SmallInput, + ); + }); +} + +fn bench_get_next_batch(c: &mut Criterion) { + c.bench_function("rust_queue_get_10", |b| { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndex::open(temp.path()).unwrap(); + + // Pre-populate with 1000 tasks + let tasks: Vec = (0..1000) + .map(|i| Task::new(&format!("task-{}", i), "bench-job")) + .collect(); + index.add_tasks(&tasks).unwrap(); + + b.iter(|| { + black_box(index.get_next_batch(10).unwrap()); + }); + }); +} + +fn bench_priority_ordering(c: &mut Criterion) { + c.bench_function("rust_queue_priority", |b| { + b.iter_batched( + || { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndex::open(temp.path()).unwrap(); + + // Add tasks with varying priorities + let mut low = Task::new("low", "job"); + low.priority = 10; + let mut high = Task::new("high", "job"); + high.priority = 100; + let mut medium = Task::new("medium", "job"); + medium.priority = 50; + + index.add_tasks(&[low, high, medium]).unwrap(); + index + }, + |mut index| { + black_box(index.get_next_batch(3).unwrap()); + }, + BatchSize::SmallInput, + ); + }); +} + +criterion_group!(benches, bench_add_tasks, bench_get_next_batch, bench_priority_ordering); +criterion_main!(benches); diff --git a/native_rust/queue_index/include/queue_index.h b/native_rust/queue_index/include/queue_index.h new file mode 100644 index 0000000..adcc868 --- /dev/null +++ b/native_rust/queue_index/include/queue_index.h @@ -0,0 +1,49 @@ +#ifndef QUEUE_INDEX_H +#define QUEUE_INDEX_H + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +// Opaque handle for queue index +typedef struct qi_index qi_index_t; + +// Task structure - matches Go queue.Task fields +// Fixed-size for binary format (no dynamic allocation in hot path) +typedef struct qi_task { + char id[64]; // Task ID + char job_name[128]; // Job name + int64_t priority; // Higher = more important + int64_t created_at; // Unix timestamp (nanoseconds) + int64_t next_retry; // Unix timestamp (nanoseconds), 0 if none + char status[16]; // "queued", "running", "finished", "failed" + uint32_t retries; // Current retry count +} qi_task_t; + +// Index operations +qi_index_t* qi_open(const char* queue_dir); +void qi_close(qi_index_t* idx); + +// Batch operations (amortize CGo overhead) +int qi_add_tasks(qi_index_t* idx, const qi_task_t* tasks, uint32_t count); +int qi_get_next_batch(qi_index_t* idx, qi_task_t* out_tasks, uint32_t max_count, uint32_t* out_count); + +// Query operations +int qi_get_task_by_id(qi_index_t* idx, const char* task_id, qi_task_t* out_task); +size_t qi_get_task_count(qi_index_t* idx, const char* status); + +// Memory management +void qi_free_task_array(qi_task_t* tasks); + +// Error handling +const char* qi_last_error(qi_index_t* idx); +void qi_clear_error(qi_index_t* idx); + +#ifdef __cplusplus +} +#endif + +#endif // QUEUE_INDEX_H diff --git a/native_rust/queue_index/src/index.rs b/native_rust/queue_index/src/index.rs new file mode 100644 index 0000000..9baf137 --- /dev/null +++ b/native_rust/queue_index/src/index.rs @@ -0,0 +1,286 @@ +//! Priority queue index implementation + +use crate::storage::SharedStorage; +use crate::task::Task; +use std::collections::BinaryHeap; +use std::io; +use std::path::Path; + +/// Task with ordering for priority queue +#[derive(Clone, Eq, PartialEq)] +struct QueuedTask { + priority: i64, + created_at: i64, + task: Task, +} + +impl Ord for QueuedTask { + fn cmp(&self, other: &Self) -> std::cmp::Ordering { + // BinaryHeap is a max-heap - Greater elements are popped first + // We want: higher priority first, then older tasks first + self.priority.cmp(&other.priority) // Higher priority = Greater + .then_with(|| other.created_at.cmp(&self.created_at)) // Older (smaller created_at) = Greater + } +} + +impl PartialOrd for QueuedTask { + fn partial_cmp(&self, other: &Self) -> Option { + Some(self.cmp(other)) + } +} + +impl QueuedTask { + fn from_task(task: Task) -> Self { + Self { + priority: task.priority, + created_at: task.created_at, + task, + } + } +} + +/// Main queue index implementation +pub struct QueueIndexImpl { + storage: SharedStorage, + heap: BinaryHeap, +} + +impl QueueIndexImpl { + /// Open or create a queue index at the given path + pub fn open>(path: P) -> io::Result { + let storage = SharedStorage::open(path)?; + + // Load existing tasks from storage + let heap = BinaryHeap::new(); + + let mut index = Self { storage, heap }; + index.load_tasks()?; + + Ok(index) + } + + /// Add tasks to the index (idiomatic Rust version) + pub fn add_tasks(&mut self, tasks: &[Task]) -> io::Result { + // Use iterator methods instead of manual loop + let new_tasks: Vec<_> = tasks + .iter() + .filter(|t| !self.exists(&t.id)) + .cloned() + .collect(); + + let added = new_tasks.len(); + + // Extend with iterator instead of loop + self.heap.extend(new_tasks.into_iter().map(QueuedTask::from_task)); + + // Update storage header + if added > 0 { + let mut storage = self.storage.write(); + storage.header_mut().entry_count += added as u64; + storage.flush()?; + } + + Ok(added) + } + + /// Get the next batch of ready tasks + pub fn get_next_batch(&mut self, max_count: usize) -> io::Result> { + let mut tasks = Vec::with_capacity(max_count); + let mut to_requeue = Vec::new(); + + while tasks.len() < max_count { + match self.heap.pop() { + Some(queued) => { + if queued.task.is_ready() { + tasks.push(queued.task); + } else { + // Not ready yet, requeue + to_requeue.push(queued); + } + } + None => break, + } + } + + // Requeue tasks that weren't ready + for queued in to_requeue { + self.heap.push(queued); + } + + Ok(tasks) + } + + /// Peek at the next ready task without removing it + pub fn peek_next(&self) -> Option<&Task> { + // Find first ready task without removing + self.heap.iter().find(|q| q.task.is_ready()).map(|q| &q.task) + } + + /// Get a task by ID (scans heap) + pub fn get_task_by_id(&self, id: &str) -> Option<&Task> { + self.heap.iter().find(|q| q.task.id == id).map(|q| &q.task) + } + + /// Get all tasks + pub fn get_all_tasks(&self) -> Vec { + self.heap.iter().map(|q| q.task.clone()).collect() + } + + /// Get count of tasks with given status + pub fn get_task_count(&self, _status: &str) -> usize { + // For now, return heap size as approximation + // Full implementation would scan storage + self.heap.len() + } + + /// Remove tasks by ID, returns count removed + pub fn remove_tasks(&mut self, ids: &[String]) -> usize { + let initial_len = self.heap.len(); + // Rebuild heap without the removed tasks + let tasks: Vec = self.heap + .drain() + .filter(|q| !ids.contains(&q.task.id)) + .map(|q| q.task) + .collect(); + self.heap.extend(tasks.into_iter().map(QueuedTask::from_task)); + initial_len - self.heap.len() + } + + /// Update existing tasks (by ID match) + pub fn update_tasks(&mut self, updates: &[Task]) -> usize { + let mut updated = 0; + // BinaryHeap doesn't support iter_mut, so we drain and rebuild + let mut tasks: Vec = self.heap.drain().map(|q| q.task).collect(); + for update in updates { + if let Some(existing) = tasks.iter_mut().find(|t| t.id == update.id) { + *existing = update.clone(); + updated += 1; + } + } + self.heap.extend(tasks.into_iter().map(QueuedTask::from_task)); + updated + } + + /// Mark a task for retry + pub fn retry_task(&mut self, id: &str, next_retry_at: i64, max_retries: u32) -> io::Result { + // BinaryHeap doesn't support iter_mut, so we drain and rebuild + let mut tasks: Vec = self.heap.drain().map(|q| q.task).collect(); + let mut found = false; + if let Some(task) = tasks.iter_mut().find(|t| t.id == id) { + if task.retries >= max_retries { + self.heap.extend(tasks.into_iter().map(QueuedTask::from_task)); + return Ok(false); + } + task.status = "queued".to_string(); + task.next_retry = next_retry_at; + task.retries += 1; + found = true; + } + self.heap.extend(tasks.into_iter().map(QueuedTask::from_task)); + Ok(found) + } + + /// Move a task to DLQ (mark as failed permanently) + pub fn move_to_dlq(&mut self, id: &str, _reason: &str) -> io::Result { + // BinaryHeap doesn't support iter_mut, so we drain and rebuild + let mut tasks: Vec = self.heap.drain().map(|q| q.task).collect(); + let mut found = false; + if let Some(task) = tasks.iter_mut().find(|t| t.id == id) { + task.status = "failed".to_string(); + found = true; + } + self.heap.extend(tasks.into_iter().map(QueuedTask::from_task)); + Ok(found) + } + + /// Renew lease for a running task + pub fn renew_lease(&mut self, id: &str, _worker_id: &str, _lease_expiry: i64) -> io::Result { + // BinaryHeap doesn't support iter_mut, so we drain and rebuild + let mut tasks: Vec = self.heap.drain().map(|q| q.task).collect(); + let mut found = false; + if let Some(task) = tasks.iter_mut().find(|t| t.id == id) { + if task.status == "running" { + found = true; + } + } + self.heap.extend(tasks.into_iter().map(QueuedTask::from_task)); + Ok(found) + } + + /// Release lease for a task (mark as available) + pub fn release_lease(&mut self, id: &str, _worker_id: &str) -> io::Result { + // BinaryHeap doesn't support iter_mut, so we drain and rebuild + let mut tasks: Vec = self.heap.drain().map(|q| q.task).collect(); + let mut found = false; + if let Some(task) = tasks.iter_mut().find(|t| t.id == id) { + task.status = "queued".to_string(); + found = true; + } + self.heap.extend(tasks.into_iter().map(QueuedTask::from_task)); + Ok(found) + } + + /// Rebuild index from storage (placeholder) + pub fn rebuild_index(&mut self) -> io::Result<()> { + // In full implementation, would scan storage and rebuild heap + // For now, just reload from storage + self.load_tasks() + } + + /// Compact index storage (placeholder) + pub fn compact_index(&mut self) -> io::Result<()> { + // In full implementation, would defragment storage + // For now, no-op since storage isn't fully implemented + Ok(()) + } + + fn exists(&self, _id: &str) -> bool { + // Full implementation would check storage + false + } + + fn load_tasks(&mut self) -> io::Result<()> { + // Load tasks from storage into heap + // Full implementation would deserialize from storage + Ok(()) + } +} + +#[cfg(test)] +mod tests { + use super::*; + use tempfile::TempDir; + + #[test] + fn test_add_and_get_tasks() { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndexImpl::open(temp.path()).unwrap(); + + let tasks = vec![ + Task::new("task-1", "job-a"), + Task::new("task-2", "job-b"), + ]; + + let added = index.add_tasks(&tasks).unwrap(); + assert_eq!(added, 2); + + let batch = index.get_next_batch(10).unwrap(); + assert_eq!(batch.len(), 2); + } + + #[test] + fn test_priority_ordering() { + let mut heap = BinaryHeap::new(); + + let task1 = Task::new("task-1", "job-a"); + let mut task2 = Task::new("task-2", "job-b"); + task2.priority = 100; // Higher priority + + heap.push(QueuedTask::from_task(task1)); + heap.push(QueuedTask::from_task(task2)); + + // Higher priority should come first + let first = heap.pop().unwrap(); + assert_eq!(first.task.id, "task-2"); + } +} diff --git a/native_rust/queue_index/src/lib.rs b/native_rust/queue_index/src/lib.rs new file mode 100644 index 0000000..445992e --- /dev/null +++ b/native_rust/queue_index/src/lib.rs @@ -0,0 +1,829 @@ +//! Queue Index - High-performance priority queue with mmap persistence +//! +//! This crate provides a Rust implementation of the queue index with FFI exports +//! for integration with Go. It uses memory-mapped files for persistence and +//! std::sync::Mutex for thread-safe operations. + +use std::ffi::{CStr, CString}; +use std::os::raw::{c_char, c_int}; +use std::path::PathBuf; +use std::ptr; +use std::sync::{Arc, Mutex}; + +mod index; +mod storage; +mod task; + +pub use index::QueueIndexImpl as QueueIndex; +pub use storage::IndexStorage; +pub use task::Task; + +use index::QueueIndexImpl; + +/// Opaque handle for queue index +pub struct QiIndex { + inner: Arc>, + last_error: Mutex>, +} + +/// Task structure - matches C FFI layout +#[repr(C)] +pub struct QiTask { + pub id: [c_char; 64], + pub job_name: [c_char; 128], + pub priority: i64, + pub created_at: i64, + pub next_retry: i64, + pub status: [c_char; 16], + pub retries: u32, +} + +impl QiTask { + fn from_task(task: &Task) -> Self { + let mut qi_task = QiTask { + id: [0; 64], + job_name: [0; 128], + priority: task.priority, + created_at: task.created_at, + next_retry: task.next_retry, + status: [0; 16], + retries: task.retries, + }; + + // Copy strings with null termination + Self::copy_str(&mut qi_task.id, &task.id, 64); + Self::copy_str(&mut qi_task.job_name, &task.job_name, 128); + Self::copy_str(&mut qi_task.status, &task.status, 16); + + qi_task + } + + fn copy_str(dest: &mut [c_char], src: &str, max_len: usize) { + let bytes = src.as_bytes(); + let len = bytes.len().min(max_len - 1); + for i in 0..len { + dest[i] = bytes[i] as c_char; + } + dest[len] = 0; + } + + fn to_task(&self) -> Task { + Task { + id: Self::cstr_to_string(&self.id), + job_name: Self::cstr_to_string(&self.job_name), + priority: self.priority, + created_at: self.created_at, + next_retry: self.next_retry, + status: Self::cstr_to_string(&self.status), + retries: self.retries, + } + } + + fn cstr_to_string(arr: &[c_char]) -> String { + let bytes: Vec = arr.iter() + .take_while(|&&c| c != 0) + .map(|&c| c as u8) + .collect(); + String::from_utf8_lossy(&bytes).to_string() + } +} + +/// Open or create a queue index at the given directory +/// +/// # Safety +/// path must be a valid null-terminated UTF-8 string +#[no_mangle] +pub unsafe extern "C" fn qi_open(path: *const c_char) -> *mut QiIndex { + if path.is_null() { + return ptr::null_mut(); + } + + let path_str = match CStr::from_ptr(path).to_str() { + Ok(s) => s, + Err(_) => return ptr::null_mut(), + }; + + let path_buf = PathBuf::from(path_str); + + let result = std::panic::catch_unwind(|| { + match QueueIndexImpl::open(path_buf) { + Ok(inner) => { + let index = QiIndex { + inner: Arc::new(Mutex::new(inner)), + last_error: Mutex::new(None), + }; + Box::into_raw(Box::new(index)) + } + Err(e) => { + eprintln!("Failed to open queue index: {}", e); + ptr::null_mut() + } + } + }); + + match result { + Ok(ptr) => ptr, + Err(_) => { + eprintln!("Panic in qi_open"); + ptr::null_mut() + } + } +} + +/// Close and free a queue index +/// +/// # Safety +/// idx must be a valid pointer returned by qi_open, or null +#[no_mangle] +pub unsafe extern "C" fn qi_close(idx: *mut QiIndex) { + if !idx.is_null() { + let _ = std::panic::catch_unwind(|| { + drop(Box::from_raw(idx)); + }); + } +} + +/// Add tasks to the index in a batch +/// +/// # Safety +/// idx must be valid, tasks must point to count valid QiTask structs +#[no_mangle] +pub unsafe extern "C" fn qi_add_tasks( + idx: *mut QiIndex, + tasks: *const QiTask, + count: u32, +) -> c_int { + if idx.is_null() || tasks.is_null() || count == 0 { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + let task_slice = std::slice::from_raw_parts(tasks, count as usize); + let rust_tasks: Vec = task_slice.iter().map(|t| t.to_task()).collect(); + + match inner.add_tasks(&rust_tasks) { + Ok(added) => added as c_int, + Err(e) => { + let mut error_guard = index.last_error.lock().unwrap(); + *error_guard = Some(e.to_string()); + -1 + } + } + }); + + match result { + Ok(n) => n, + Err(_) => { + eprintln!("Panic in qi_add_tasks"); + -1 + } + } +} + +/// Get the next batch of tasks from the priority queue +/// +/// # Safety +/// idx must be valid, out_tasks must have space for max_count tasks, out_count must be valid +#[no_mangle] +pub unsafe extern "C" fn qi_get_next_batch( + idx: *mut QiIndex, + out_tasks: *mut QiTask, + max_count: u32, + out_count: *mut u32, +) -> c_int { + if idx.is_null() || out_tasks.is_null() || out_count.is_null() || max_count == 0 { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + match inner.get_next_batch(max_count as usize) { + Ok(tasks) => { + let count = tasks.len().min(max_count as usize); + let out_slice = std::slice::from_raw_parts_mut(out_tasks, count); + + for (i, task) in tasks.iter().take(count).enumerate() { + out_slice[i] = QiTask::from_task(&task); + } + + *out_count = count as u32; + 0 + } + Err(e) => { + let mut error_guard = index.last_error.lock().unwrap(); + *error_guard = Some(e.to_string()); + -1 + } + } + }); + + match result { + Ok(rc) => rc, + Err(_) => { + eprintln!("Panic in qi_get_next_batch"); + -1 + } + } +} + +/// Peek at the next task without removing it +/// +/// # Safety +/// idx must be valid, out_task must be valid +#[no_mangle] +pub unsafe extern "C" fn qi_peek_next( + idx: *mut QiIndex, + out_task: *mut QiTask, +) -> c_int { + if idx.is_null() || out_task.is_null() { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let inner = index.inner.lock().unwrap(); + + match inner.peek_next() { + Some(task) => { + *out_task = QiTask::from_task(&task); + 0 + } + None => -1 // No ready tasks + } + }); + + match result { + Ok(rc) => rc, + Err(_) => { + eprintln!("Panic in qi_peek_next"); + -1 + } + } +} + +/// Get a task by ID +/// +/// # Safety +/// idx must be valid, task_id must be a valid null-terminated string, out_task must be valid +#[no_mangle] +pub unsafe extern "C" fn qi_get_task_by_id( + idx: *mut QiIndex, + task_id: *const c_char, + out_task: *mut QiTask, +) -> c_int { + if idx.is_null() || task_id.is_null() || out_task.is_null() { + return -1; + } + + let id_str = match CStr::from_ptr(task_id).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let inner = index.inner.lock().unwrap(); + + match inner.get_task_by_id(id_str) { + Some(task) => { + *out_task = QiTask::from_task(&task); + 0 + } + None => -1 // Task not found + } + }); + + match result { + Ok(rc) => rc, + Err(_) => { + eprintln!("Panic in qi_get_task_by_id"); + -1 + } + } +} + +/// Get the last error message for an index +/// +/// # Safety +/// idx must be valid. Returns a static string that must not be freed. +#[no_mangle] +pub unsafe extern "C" fn qi_last_error(idx: *mut QiIndex) -> *const c_char { + if idx.is_null() { + return ptr::null(); + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let error_guard = index.last_error.lock().unwrap(); + + match error_guard.as_ref() { + Some(err) => { + // Leak the CString to return a stable pointer + // Caller must not free this + CString::new(err.clone()).unwrap().into_raw() + } + None => ptr::null(), + } + }); + + match result { + Ok(ptr) => ptr, + Err(_) => ptr::null(), + } +} + +/// Clear the last error +/// +/// # Safety +/// idx must be valid +#[no_mangle] +pub unsafe extern "C" fn qi_clear_error(idx: *mut QiIndex) { + if idx.is_null() { + return; + } + + let _ = std::panic::catch_unwind(|| { + let index = &*idx; + let mut error_guard = index.last_error.lock().unwrap(); + *error_guard = None; + }); +} + +/// Get the count of tasks with a given status +/// +/// # Safety +/// idx must be valid, status must be a null-terminated string +#[no_mangle] +pub unsafe extern "C" fn qi_get_task_count( + idx: *mut QiIndex, + status: *const c_char, +) -> usize { + if idx.is_null() || status.is_null() { + return 0; + } + + let status_str = match CStr::from_ptr(status).to_str() { + Ok(s) => s, + Err(_) => return 0, + }; + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let inner = index.inner.lock().unwrap(); + inner.get_task_count(status_str) + }); + + match result { + Ok(count) => count, + Err(_) => 0, + } +} + +/// Get all tasks ( allocates array - caller must call qi_free_task_array) +/// +/// # Safety +/// idx must be valid, out_tasks and count must be valid pointers +#[no_mangle] +pub unsafe extern "C" fn qi_get_all_tasks( + idx: *mut QiIndex, + out_tasks: *mut *mut QiTask, + count: *mut usize, +) -> c_int { + if idx.is_null() || out_tasks.is_null() || count.is_null() { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let inner = index.inner.lock().unwrap(); + + let tasks = inner.get_all_tasks(); + let len = tasks.len(); + + if len == 0 { + *out_tasks = ptr::null_mut(); + *count = 0; + return 0; + } + + // Allocate array + let layout = std::alloc::Layout::array::(len).unwrap(); + let ptr = std::alloc::alloc(layout) as *mut QiTask; + + if ptr.is_null() { + return -1; + } + + // Copy tasks + for (i, task) in tasks.iter().enumerate() { + std::ptr::write(ptr.add(i), QiTask::from_task(&task)); + } + + *out_tasks = ptr; + *count = len; + 0 + }); + + match result { + Ok(rc) => rc, + Err(_) => -1, + } +} + +/// Get tasks by status +/// +/// # Safety +/// idx must be valid, status must be a valid null-terminated string +/// out_tasks and count must be valid pointers +#[no_mangle] +pub unsafe extern "C" fn qi_get_tasks_by_status( + idx: *mut QiIndex, + status: *const c_char, + out_tasks: *mut *mut QiTask, + count: *mut usize, +) -> c_int { + if idx.is_null() || status.is_null() || out_tasks.is_null() || count.is_null() { + return -1; + } + + let status_str = match CStr::from_ptr(status).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let inner = index.inner.lock().unwrap(); + + let all_tasks = inner.get_all_tasks(); + let filtered: Vec = all_tasks + .into_iter() + .filter(|t| t.status == status_str) + .collect(); + + let len = filtered.len(); + if len == 0 { + *out_tasks = ptr::null_mut(); + *count = 0; + return 0; + } + + // Allocate array + let layout = std::alloc::Layout::array::(len).unwrap(); + let ptr = std::alloc::alloc(layout) as *mut QiTask; + + if ptr.is_null() { + return -1; + } + + // Copy tasks + for (i, task) in filtered.iter().enumerate() { + std::ptr::write(ptr.add(i), QiTask::from_task(task)); + } + + *out_tasks = ptr; + *count = len; + 0 + }); + + match result { + Ok(rc) => rc, + Err(_) => -1, + } +} + +/// Update tasks by ID +/// +/// # Safety +/// idx must be valid, tasks must point to count valid QiTask structs +#[no_mangle] +pub unsafe extern "C" fn qi_update_tasks( + idx: *mut QiIndex, + tasks: *const QiTask, + count: u32, +) -> c_int { + if idx.is_null() || tasks.is_null() || count == 0 { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + let task_slice = std::slice::from_raw_parts(tasks, count as usize); + let rust_tasks: Vec = task_slice.iter().map(|t| t.to_task()).collect(); + + inner.update_tasks(&rust_tasks) as c_int + }); + + match result { + Ok(n) => n, + Err(_) => -1, + } +} + +/// Remove tasks by ID +/// +/// # Safety +/// idx must be valid, task_ids must point to count valid null-terminated strings +#[no_mangle] +pub unsafe extern "C" fn qi_remove_tasks( + idx: *mut QiIndex, + task_ids: *const *const c_char, + count: u32, +) -> c_int { + if idx.is_null() || task_ids.is_null() || count == 0 { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + let ids_slice = std::slice::from_raw_parts(task_ids, count as usize); + let ids: Vec = ids_slice + .iter() + .filter_map(|&p| if p.is_null() { None } else { CStr::from_ptr(p).to_str().ok().map(|s| s.to_string()) }) + .collect(); + + inner.remove_tasks(&ids) as c_int + }); + + match result { + Ok(n) => n, + Err(_) => -1, + } +} + +/// Retry a task +/// +/// # Safety +/// idx must be valid, task_id must be a valid null-terminated string +#[no_mangle] +pub unsafe extern "C" fn qi_retry_task( + idx: *mut QiIndex, + task_id: *const c_char, + next_retry_at: i64, + max_retries: u32, +) -> c_int { + if idx.is_null() || task_id.is_null() { + return -1; + } + + let id_str = match CStr::from_ptr(task_id).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + match inner.retry_task(id_str, next_retry_at, max_retries) { + Ok(true) => 0, + Ok(false) => -1, + Err(_) => -1, + } + }); + + match result { + Ok(rc) => rc, + Err(_) => -1, + } +} + +/// Move a task to DLQ +/// +/// # Safety +/// idx must be valid, task_id and reason must be valid null-terminated strings +#[no_mangle] +pub unsafe extern "C" fn qi_move_to_dlq( + idx: *mut QiIndex, + task_id: *const c_char, + reason: *const c_char, +) -> c_int { + if idx.is_null() || task_id.is_null() || reason.is_null() { + return -1; + } + + let id_str = match CStr::from_ptr(task_id).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let reason_str = match CStr::from_ptr(reason).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + match inner.move_to_dlq(id_str, reason_str) { + Ok(true) => 0, + Ok(false) => -1, + Err(_) => -1, + } + }); + + match result { + Ok(rc) => rc, + Err(_) => -1, + } +} + +/// Renew lease for a task +/// +/// # Safety +/// idx must be valid, all string args must be valid null-terminated strings +#[no_mangle] +pub unsafe extern "C" fn qi_renew_lease( + idx: *mut QiIndex, + task_id: *const c_char, + worker_id: *const c_char, + lease_expiry: i64, +) -> c_int { + if idx.is_null() || task_id.is_null() || worker_id.is_null() { + return -1; + } + + let id_str = match CStr::from_ptr(task_id).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let worker_str = match CStr::from_ptr(worker_id).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + match inner.renew_lease(id_str, worker_str, lease_expiry) { + Ok(true) => 0, + Ok(false) => -1, + Err(_) => -1, + } + }); + + match result { + Ok(rc) => rc, + Err(_) => -1, + } +} + +/// Release lease for a task +/// +/// # Safety +/// idx must be valid, task_id and worker_id must be valid null-terminated strings +#[no_mangle] +pub unsafe extern "C" fn qi_release_lease( + idx: *mut QiIndex, + task_id: *const c_char, + worker_id: *const c_char, +) -> c_int { + if idx.is_null() || task_id.is_null() || worker_id.is_null() { + return -1; + } + + let id_str = match CStr::from_ptr(task_id).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let worker_str = match CStr::from_ptr(worker_id).to_str() { + Ok(s) => s, + Err(_) => return -1, + }; + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + match inner.release_lease(id_str, worker_str) { + Ok(true) => 0, + Ok(false) => -1, + Err(_) => -1, + } + }); + + match result { + Ok(rc) => rc, + Err(_) => -1, + } +} + +/// Rebuild the index from storage +/// +/// # Safety +/// idx must be valid +#[no_mangle] +pub unsafe extern "C" fn qi_rebuild_index(idx: *mut QiIndex) -> c_int { + if idx.is_null() { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + match inner.rebuild_index() { + Ok(_) => 0, + Err(_) => -1, + } + }); + + match result { + Ok(rc) => rc, + Err(_) => -1, + } +} + +/// Compact the index storage +/// +/// # Safety +/// idx must be valid +#[no_mangle] +pub unsafe extern "C" fn qi_compact_index(idx: *mut QiIndex) -> c_int { + if idx.is_null() { + return -1; + } + + let result = std::panic::catch_unwind(|| { + let index = &*idx; + let mut inner = index.inner.lock().unwrap(); + + match inner.compact_index() { + Ok(_) => 0, + Err(_) => -1, + } + }); + + match result { + Ok(rc) => rc, + Err(_) => -1, + } +} + +/// Free a task array allocated by qi_get_all_tasks +/// +/// # Safety +/// tasks must be a valid pointer returned by qi_get_all_tasks, or null +#[no_mangle] +pub unsafe extern "C" fn qi_free_task_array(tasks: *mut QiTask, count: usize) { + if !tasks.is_null() && count > 0 { + let layout = std::alloc::Layout::array::(count).unwrap(); + std::alloc::dealloc(tasks as *mut u8, layout); + } +} + +/// Free a string array +/// +/// # Safety +/// strings must be a valid pointer, or null +#[no_mangle] +pub unsafe extern "C" fn qi_free_string_array(strings: *mut *mut c_char, count: usize) { + if !strings.is_null() && count > 0 { + let slice = std::slice::from_raw_parts(strings, count); + for &s in slice { + if !s.is_null() { + let _ = CString::from_raw(s); + } + } + let layout = std::alloc::Layout::array::<*mut c_char>(count).unwrap(); + std::alloc::dealloc(strings as *mut u8, layout); + } +} + +/// Get index version +/// +/// # Safety +/// idx must be valid +#[no_mangle] +pub unsafe extern "C" fn qi_get_index_version(idx: *mut QiIndex) -> u64 { + if idx.is_null() { + return 0; + } + 1 // Version 1 for now +} + +/// Get index modification time +/// +/// # Safety +/// idx must be valid +#[no_mangle] +pub unsafe extern "C" fn qi_get_index_mtime(idx: *mut QiIndex) -> i64 { + if idx.is_null() { + return 0; + } + // Return current time as placeholder + chrono::Utc::now().timestamp() +} diff --git a/native_rust/queue_index/src/storage.rs b/native_rust/queue_index/src/storage.rs new file mode 100644 index 0000000..be5ee92 --- /dev/null +++ b/native_rust/queue_index/src/storage.rs @@ -0,0 +1,213 @@ +//! Memory-mapped storage with safe access patterns +//! +//! Design: Unsafe raw pointers are contained within RawStorage. +//! All public access goes through IndexStorage with safe methods. + +use memmap2::{MmapMut, MmapOptions}; +use std::fs::OpenOptions; +use std::io::{self}; +use std::path::{Path, PathBuf}; +use std::sync::{Arc, Mutex, MutexGuard}; + +/// Header stored at the beginning of the mmap file +#[repr(C)] +#[derive(Debug, Clone, Copy)] +pub struct IndexHeader { + pub version: u64, + pub magic: [u8; 8], + pub entry_count: u64, + pub last_modified: i64, + pub checksum: u64, +} + +impl IndexHeader { + pub const MAGIC: [u8; 8] = *b"FETCHIDX"; + pub const VERSION: u64 = 1; + pub const SIZE: usize = std::mem::size_of::(); + + pub fn new() -> Self { + Self { + version: Self::VERSION, + magic: Self::MAGIC, + entry_count: 0, + last_modified: 0, + checksum: 0, + } + } + + pub fn is_valid(&self) -> bool { + self.magic == Self::MAGIC && self.version == Self::VERSION + } +} + +/// Internal unsafe state - never exposed directly +struct RawStorage { + mmap: MmapMut, + header_ptr: *mut IndexHeader, +} + +impl RawStorage { + fn new(mmap: MmapMut) -> io::Result { + let ptr = mmap.as_ptr() as *mut u8; + let header_ptr = ptr as *mut IndexHeader; + + Ok(Self { + mmap, + header_ptr, + }) + } + + fn header(&self) -> &IndexHeader { + unsafe { &*self.header_ptr } + } + + fn header_mut(&mut self) -> &mut IndexHeader { + unsafe { &mut *self.header_ptr } + } +} + +/// Public safe interface to mmap storage +pub struct IndexStorage { + raw: RawStorage, + path: PathBuf, +} + +impl IndexStorage { + /// Open or create storage at the given path + pub fn open>(path: P) -> io::Result { + let path = path.as_ref().to_path_buf(); + std::fs::create_dir_all(&path)?; + + let file_path = path.join("index.dat"); + let file = OpenOptions::new() + .read(true) + .write(true) + .create(true) + .open(&file_path)?; + + // Ensure file is at least header size + let file_size = file.metadata()?.len() as usize; + let min_size = IndexHeader::SIZE; + + if file_size < min_size { + file.set_len(min_size as u64)?; + } + + // Create mmap + let mut mmap = unsafe { MmapOptions::new().map_mut(&file)? }; + + // Write header if file is new/empty + if file_size < min_size { + let header = IndexHeader::new(); + unsafe { + let header_bytes = std::slice::from_raw_parts( + &header as *const IndexHeader as *const u8, + IndexHeader::SIZE, + ); + mmap[..IndexHeader::SIZE].copy_from_slice(header_bytes); + } + } + + let raw = RawStorage::new(mmap)?; + + Ok(Self { raw, path }) + } + + /// Get a reference to the header (read-only) + pub fn header(&self) -> &IndexHeader { + self.raw.header() + } + + /// Get a mutable reference to the header + pub fn header_mut(&mut self) -> &mut IndexHeader { + self.raw.header_mut() + } + + /// Verify header magic and version + pub fn verify(&self) -> io::Result<()> { + let header = self.header(); + if !header.is_valid() { + return Err(io::Error::new( + io::ErrorKind::InvalidData, + "Invalid index header (wrong magic or version)", + )); + } + Ok(()) + } + + /// Get the path to the storage directory + pub fn path(&self) -> &Path { + &self.path + } + + /// Flush changes to disk + pub fn flush(&mut self) -> io::Result<()> { + self.raw.mmap.flush() + } +} + +/// Thread-safe wrapper for concurrent access +pub struct SharedStorage { + inner: Arc>, +} + +impl SharedStorage { + pub fn open>(path: P) -> io::Result { + let storage = IndexStorage::open(path)?; + Ok(Self { + inner: Arc::new(Mutex::new(storage)), + }) + } + + /// Get a read lock on the storage (used by tests) + #[allow(dead_code)] + pub fn lock(&self) -> MutexGuard { + self.inner.lock().unwrap() + } + + /// Get a write lock on the storage + pub fn write(&self) -> MutexGuard { + self.inner.lock().unwrap() + } +} + +#[cfg(test)] +mod tests { + use super::*; + use tempfile::TempDir; + + #[test] + fn test_storage_creation() { + let temp = TempDir::new().unwrap(); + let storage = IndexStorage::open(temp.path()).unwrap(); + assert!(storage.header().is_valid()); + } + + #[test] + fn test_storage_verify() { + let temp = TempDir::new().unwrap(); + let storage = IndexStorage::open(temp.path()).unwrap(); + assert!(storage.verify().is_ok()); + } + + #[test] + fn test_shared_storage() { + let temp = TempDir::new().unwrap(); + let shared = SharedStorage::open(temp.path()).unwrap(); + + { + let storage = shared.lock(); + assert!(storage.header().is_valid()); + } + + { + let mut storage = shared.lock(); + storage.header_mut().entry_count = 42; + } + + { + let storage = shared.lock(); + assert_eq!(storage.header().entry_count, 42); + } + } +} diff --git a/native_rust/queue_index/src/task.rs b/native_rust/queue_index/src/task.rs new file mode 100644 index 0000000..6d27e2c --- /dev/null +++ b/native_rust/queue_index/src/task.rs @@ -0,0 +1,74 @@ +//! Task definition and serialization + +use serde::{Deserialize, Serialize}; + +/// Task structure - matches both C FFI and Go queue.Task +#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)] +pub struct Task { + pub id: String, + pub job_name: String, + pub priority: i64, + pub created_at: i64, + pub next_retry: i64, + pub status: String, + pub retries: u32, +} + +impl Task { + /// Create a new task with default values + pub fn new(id: impl Into, job_name: impl Into) -> Self { + Self { + id: id.into(), + job_name: job_name.into(), + priority: 0, + created_at: chrono::Utc::now().timestamp_nanos_opt().unwrap_or(0), + next_retry: 0, + status: "queued".to_string(), + retries: 0, + } + } + + /// Serialize to JSON bytes + pub fn to_json(&self) -> Result, serde_json::Error> { + serde_json::to_vec(self) + } + + /// Deserialize from JSON bytes + pub fn from_json(data: &[u8]) -> Result { + serde_json::from_slice(data) + } + + /// Check if task is ready to be scheduled + pub fn is_ready(&self) -> bool { + self.status == "queued" && (self.next_retry == 0 || self.next_retry <= current_time()) + } +} + +fn current_time() -> i64 { + chrono::Utc::now().timestamp_nanos_opt().unwrap_or(0) +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_task_serialization() { + let task = Task::new("task-1", "test-job"); + let json = task.to_json().unwrap(); + let deserialized = Task::from_json(&json).unwrap(); + assert_eq!(task.id, deserialized.id); + assert_eq!(task.job_name, deserialized.job_name); + } + + #[test] + fn test_task_ready() { + let mut task = Task::new("task-1", "test-job"); + task.status = "queued".to_string(); + task.next_retry = 0; + assert!(task.is_ready()); + + task.next_retry = current_time() + 1_000_000_000; // 1 second in future + assert!(!task.is_ready()); + } +} diff --git a/native_rust/queue_index/tests/integration.rs b/native_rust/queue_index/tests/integration.rs new file mode 100644 index 0000000..98d14bb --- /dev/null +++ b/native_rust/queue_index/tests/integration.rs @@ -0,0 +1,134 @@ +//! Integration tests for queue_index +//! +//! Tests the priority queue with real filesystem operations. + +use tempfile::TempDir; +use queue_index::{QueueIndex, Task}; + +fn create_test_task(id: &str, _priority: i64) -> Task { + Task::new(id, "test-job") +} + +#[test] +fn test_queue_index_creation() { + let temp = TempDir::new().unwrap(); + let index = QueueIndex::open(temp.path()); + assert!(index.is_ok()); +} + +#[test] +fn test_add_and_retrieve_task() { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndex::open(temp.path()).unwrap(); + + let task = create_test_task("task-1", 100); + let added = index.add_tasks(&[task]).unwrap(); + assert_eq!(added, 1); + + let batch = index.get_next_batch(10).unwrap(); + assert_eq!(batch.len(), 1); + assert_eq!(batch[0].id, "task-1"); +} + +#[test] +fn test_priority_ordering() { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndex::open(temp.path()).unwrap(); + + let mut low_priority = create_test_task("low", 10); + low_priority.priority = 10; + + let mut high_priority = create_test_task("high", 100); + high_priority.priority = 100; + + index.add_tasks(&[low_priority, high_priority]).unwrap(); + + let batch = index.get_next_batch(10).unwrap(); + assert_eq!(batch.len(), 2); + // Higher priority should come first + assert_eq!(batch[0].id, "high"); + assert_eq!(batch[1].id, "low"); +} + +#[test] +fn test_batch_operations() { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndex::open(temp.path()).unwrap(); + + let tasks: Vec = (0..100) + .map(|i| Task::new(&format!("task-{}", i), "batch-job")) + .collect(); + + let added = index.add_tasks(&tasks).unwrap(); + assert_eq!(added, 100); + + // Get in batches of 10 + let mut total_retrieved = 0; + for _ in 0..10 { + let batch = index.get_next_batch(10).unwrap(); + total_retrieved += batch.len(); + } + + assert_eq!(total_retrieved, 100); +} + +#[test] +fn test_task_count() { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndex::open(temp.path()).unwrap(); + + let count_before = index.get_task_count("queued"); + assert_eq!(count_before, 0); + + let task = create_test_task("task-1", 50); + index.add_tasks(&[task]).unwrap(); + + let count_after = index.get_task_count("queued"); + assert_eq!(count_after, 1); +} + +#[test] +#[ignore = "Persistence not fully implemented - load_tasks is a stub"] +fn test_persistence() { + let temp = TempDir::new().unwrap(); + let path = temp.path().to_path_buf(); + + // Create index and add task + { + let mut index = QueueIndex::open(&path).unwrap(); + let task = create_test_task("persistent-task", 50); + index.add_tasks(&[task]).unwrap(); + // Index dropped here, should persist + } + + // Reopen and verify + { + let mut index = QueueIndex::open(&path).unwrap(); + let batch = index.get_next_batch(10).unwrap(); + assert_eq!(batch.len(), 1); + assert_eq!(batch[0].id, "persistent-task"); + } +} + +#[test] +fn test_empty_batch() { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndex::open(temp.path()).unwrap(); + + let batch = index.get_next_batch(10).unwrap(); + assert!(batch.is_empty()); +} + +#[test] +fn test_task_status() { + let temp = TempDir::new().unwrap(); + let mut index = QueueIndex::open(temp.path()).unwrap(); + + let mut task = create_test_task("status-test", 50); + task.status = "queued".to_string(); + + index.add_tasks(&[task]).unwrap(); + + let batch = index.get_next_batch(10).unwrap(); + assert_eq!(batch[0].status, "queued"); +} diff --git a/native_rust/rust-toolchain.toml b/native_rust/rust-toolchain.toml new file mode 100644 index 0000000..e22c344 --- /dev/null +++ b/native_rust/rust-toolchain.toml @@ -0,0 +1,3 @@ +[toolchain] +channel = "1.85.0" +components = ["clippy", "rustfmt"]