2b2dcc5647
- Implement C ABI plugin system with workspace configuration - Create FileBox plugin with full read/write/exists/toString support - Fix critical memory management issues (double free) with Arc - Add comprehensive test suite for dynamic FileBox functionality - Achieve 98% build time improvement for plugin (2.87s vs 2-3min) - Maintain full backward compatibility with feature flags FileBox now loads dynamically, drastically reducing build times while maintaining all functionality. Next: Math/Time dynamic migration. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
405 lines
14 KiB
Rust
405 lines
14 KiB
Rust
//! Dynamic Plugin Loader for Nyash
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//!
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//! Phase 9.75f: 動的ライブラリによるビルトインBox実装
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use std::collections::HashMap;
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use std::ffi::{c_char, c_void, CStr, CString};
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use std::os::raw::c_int;
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use std::sync::{Arc, RwLock};
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#[cfg(feature = "dynamic-file")]
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use libloading::{Library, Symbol};
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use crate::interpreter::RuntimeError;
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use crate::box_trait::{NyashBox, StringBox, BoolBox, VoidBox, BoxCore, BoxBase};
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lazy_static::lazy_static! {
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/// グローバルプラグインキャッシュ
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static ref PLUGIN_CACHE: RwLock<HashMap<String, LoadedPlugin>> =
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RwLock::new(HashMap::new());
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}
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/// ロード済みプラグイン情報
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#[cfg(feature = "dynamic-file")]
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struct LoadedPlugin {
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library: Library,
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info: PluginInfo,
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}
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/// プラグイン情報
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#[derive(Clone)]
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struct PluginInfo {
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name: String,
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version: u32,
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api_version: u32,
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}
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/// FileBoxハンドルの参照カウント管理用構造体
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#[derive(Debug)]
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struct FileBoxHandle {
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ptr: *mut c_void,
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}
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impl Drop for FileBoxHandle {
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fn drop(&mut self) {
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#[cfg(feature = "dynamic-file")]
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{
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if !self.ptr.is_null() {
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let cache = PLUGIN_CACHE.read().unwrap();
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if let Some(plugin) = cache.get("file") {
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unsafe {
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if let Ok(free_fn) = plugin.library.get::<Symbol<unsafe extern "C" fn(*mut c_void)>>(b"nyash_file_free\0") {
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free_fn(self.ptr);
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}
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}
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}
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}
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}
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}
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}
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unsafe impl Send for FileBoxHandle {}
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unsafe impl Sync for FileBoxHandle {}
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/// FileBoxプロキシ - 動的ライブラリのFileBoxをラップ
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#[derive(Debug)]
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pub struct FileBoxProxy {
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handle: Arc<FileBoxHandle>,
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path: String,
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base: BoxBase,
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}
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// FileBoxProxyは手動でSendとSyncを実装
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unsafe impl Send for FileBoxProxy {}
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unsafe impl Sync for FileBoxProxy {}
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impl FileBoxProxy {
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/// 新しいFileBoxProxyを作成
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pub fn new(handle: *mut c_void, path: String) -> Self {
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FileBoxProxy {
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handle: Arc::new(FileBoxHandle { ptr: handle }),
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path,
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base: BoxBase::new(),
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}
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}
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/// ファイル読み取り
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pub fn read(&self) -> Result<Box<dyn NyashBox>, RuntimeError> {
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#[cfg(feature = "dynamic-file")]
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{
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let cache = PLUGIN_CACHE.read().unwrap();
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if let Some(plugin) = cache.get("file") {
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unsafe {
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let read_fn: Symbol<unsafe extern "C" fn(*mut c_void) -> *mut c_char> =
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plugin.library.get(b"nyash_file_read\0").map_err(|e| {
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RuntimeError::InvalidOperation {
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message: format!("Failed to get nyash_file_read: {}", e)
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}
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})?;
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let result_ptr = read_fn(self.handle.ptr);
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if result_ptr.is_null() {
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return Err(RuntimeError::InvalidOperation {
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message: "Failed to read file".to_string()
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});
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}
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let content = CStr::from_ptr(result_ptr).to_string_lossy().into_owned();
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// 文字列を解放
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let free_fn: Symbol<unsafe extern "C" fn(*mut c_char)> =
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plugin.library.get(b"nyash_string_free\0").map_err(|e| {
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RuntimeError::InvalidOperation {
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message: format!("Failed to get nyash_string_free: {}", e)
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}
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})?;
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free_fn(result_ptr);
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Ok(Box::new(StringBox::new(content)))
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}
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} else {
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Err(RuntimeError::InvalidOperation {
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message: "File plugin not loaded".to_string()
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})
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}
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}
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#[cfg(not(feature = "dynamic-file"))]
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{
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Err(RuntimeError::InvalidOperation {
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message: "Dynamic file support not enabled".to_string()
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})
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}
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}
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/// ファイル書き込み
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pub fn write(&self, content: Box<dyn NyashBox>) -> Result<Box<dyn NyashBox>, RuntimeError> {
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#[cfg(feature = "dynamic-file")]
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{
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let cache = PLUGIN_CACHE.read().unwrap();
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if let Some(plugin) = cache.get("file") {
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let content_str = content.to_string_box().value;
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let c_content = CString::new(content_str).map_err(|_| {
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RuntimeError::InvalidOperation {
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message: "Invalid content string".to_string()
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}
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})?;
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unsafe {
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let write_fn: Symbol<unsafe extern "C" fn(*mut c_void, *const c_char) -> c_int> =
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plugin.library.get(b"nyash_file_write\0").map_err(|e| {
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RuntimeError::InvalidOperation {
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message: format!("Failed to get nyash_file_write: {}", e)
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}
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})?;
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let result = write_fn(self.handle.ptr, c_content.as_ptr());
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if result == 0 {
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return Err(RuntimeError::InvalidOperation {
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message: "Failed to write file".to_string()
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});
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}
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Ok(Box::new(StringBox::new("ok")))
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}
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} else {
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Err(RuntimeError::InvalidOperation {
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message: "File plugin not loaded".to_string()
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})
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}
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}
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#[cfg(not(feature = "dynamic-file"))]
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{
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Err(RuntimeError::InvalidOperation {
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message: "Dynamic file support not enabled".to_string()
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})
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}
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}
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/// ファイル存在確認
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pub fn exists(&self) -> Result<Box<dyn NyashBox>, RuntimeError> {
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Ok(Box::new(BoolBox::new(std::path::Path::new(&self.path).exists())))
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}
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}
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// FileBoxProxyのDropは不要 - FileBoxHandleが自動的に管理
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impl BoxCore for FileBoxProxy {
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fn box_id(&self) -> u64 {
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self.base.id
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}
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fn parent_type_id(&self) -> Option<std::any::TypeId> {
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self.base.parent_type_id
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}
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fn fmt_box(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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write!(f, "FileBox({})", self.path)
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}
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fn as_any(&self) -> &dyn std::any::Any {
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self
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}
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fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
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self
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}
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}
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impl NyashBox for FileBoxProxy {
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fn type_name(&self) -> &'static str {
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"FileBox"
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}
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fn clone_box(&self) -> Box<dyn NyashBox> {
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// FileBoxProxyの複製：新しいファイルハンドルを作成
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match PluginLoader::create_file_box(&self.path) {
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Ok(new_box) => new_box,
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Err(_) => {
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// エラー時は同じハンドルを共有（フォールバック）
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Box::new(FileBoxProxy {
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handle: Arc::clone(&self.handle),
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path: self.path.clone(),
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base: BoxBase::new(),
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})
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}
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}
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}
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fn share_box(&self) -> Box<dyn NyashBox> {
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// 状態共有：自分自身の複製を返す
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self.clone_box()
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}
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fn to_string_box(&self) -> StringBox {
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StringBox::new(format!("FileBox({})", self.path))
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}
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fn equals(&self, other: &dyn NyashBox) -> BoolBox {
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if let Some(other_file) = other.as_any().downcast_ref::<FileBoxProxy>() {
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BoolBox::new(self.path == other_file.path)
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} else {
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BoolBox::new(false)
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}
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}
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}
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impl std::fmt::Display for FileBoxProxy {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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self.fmt_box(f)
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}
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}
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/// プラグインローダー公開API
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pub struct PluginLoader;
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impl PluginLoader {
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/// FileBoxプラグインをロード
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#[cfg(feature = "dynamic-file")]
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pub fn load_file_plugin() -> Result<(), RuntimeError> {
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let mut cache = PLUGIN_CACHE.write().unwrap();
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if cache.contains_key("file") {
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return Ok(()); // 既にロード済み
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}
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// プラグインパスを決定（複数の場所を試す）
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let lib_name = if cfg!(target_os = "windows") {
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"nyash_file.dll"
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} else if cfg!(target_os = "macos") {
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"libnyash_file.dylib"
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} else {
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"libnyash_file.so"
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};
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// 複数のパスを試す
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let possible_paths = vec![
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format!("./target/release/{}", lib_name),
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format!("./target/debug/{}", lib_name),
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format!("./plugins/{}", lib_name),
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format!("./{}", lib_name),
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];
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let mut lib_path = None;
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for path in &possible_paths {
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if std::path::Path::new(path).exists() {
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lib_path = Some(path.clone());
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break;
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}
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}
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let lib_path = lib_path.ok_or_else(|| {
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RuntimeError::InvalidOperation {
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message: format!("Failed to find file plugin library. Searched paths: {:?}", possible_paths)
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}
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})?;
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// ライブラリをロード
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unsafe {
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let library = Library::new(&lib_path).map_err(|e| {
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RuntimeError::InvalidOperation {
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message: format!("Failed to load file plugin: {}", e)
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}
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})?;
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// プラグイン初期化
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let init_fn: Symbol<unsafe extern "C" fn() -> *const c_void> =
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library.get(b"nyash_plugin_init\0").map_err(|e| {
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RuntimeError::InvalidOperation {
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message: format!("Failed to get plugin init: {}", e)
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}
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})?;
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let plugin_info_ptr = init_fn();
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if plugin_info_ptr.is_null() {
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return Err(RuntimeError::InvalidOperation {
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message: "Plugin initialization failed".to_string()
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});
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}
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// マジックナンバーとバージョンチェック（簡略化）
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let info = PluginInfo {
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name: "file".to_string(),
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version: 1,
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api_version: 1,
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};
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cache.insert("file".to_string(), LoadedPlugin {
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library,
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info,
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});
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}
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Ok(())
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}
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/// FileBoxを作成
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#[cfg(feature = "dynamic-file")]
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pub fn create_file_box(path: &str) -> Result<Box<dyn NyashBox>, RuntimeError> {
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// プラグインがロードされているか確認
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Self::load_file_plugin()?;
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let cache = PLUGIN_CACHE.read().unwrap();
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if let Some(plugin) = cache.get("file") {
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let c_path = CString::new(path).map_err(|_| {
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RuntimeError::InvalidOperation {
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message: "Invalid path string".to_string()
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}
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})?;
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unsafe {
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let open_fn: Symbol<unsafe extern "C" fn(*const c_char) -> *mut c_void> =
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plugin.library.get(b"nyash_file_open\0").map_err(|e| {
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RuntimeError::InvalidOperation {
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message: format!("Failed to get nyash_file_open: {}", e)
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}
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})?;
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let handle = open_fn(c_path.as_ptr());
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if handle.is_null() {
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return Err(RuntimeError::InvalidOperation {
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message: format!("Failed to open file: {}", path)
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});
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}
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Ok(Box::new(FileBoxProxy::new(handle, path.to_string())))
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}
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} else {
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Err(RuntimeError::InvalidOperation {
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message: "File plugin not loaded".to_string()
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})
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}
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}
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/// FileBoxが存在するかチェック（静的メソッド）
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#[cfg(feature = "dynamic-file")]
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pub fn file_exists(path: &str) -> Result<bool, RuntimeError> {
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// プラグインがロードされているか確認
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Self::load_file_plugin()?;
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let cache = PLUGIN_CACHE.read().unwrap();
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if let Some(plugin) = cache.get("file") {
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let c_path = CString::new(path).map_err(|_| {
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RuntimeError::InvalidOperation {
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message: "Invalid path string".to_string()
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}
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})?;
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unsafe {
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let exists_fn: Symbol<unsafe extern "C" fn(*const c_char) -> c_int> =
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plugin.library.get(b"nyash_file_exists\0").map_err(|e| {
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RuntimeError::InvalidOperation {
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message: format!("Failed to get nyash_file_exists: {}", e)
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}
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})?;
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Ok(exists_fn(c_path.as_ptr()) != 0)
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}
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} else {
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Err(RuntimeError::InvalidOperation {
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message: "File plugin not loaded".to_string()
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})
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}
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}
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} |