Bump version

.github/workflows/rust.yml

@@ -32,6 +32,34 @@ jobs:
       - name: Install cargo-audit
         run: cargo install cargo-audit
 
+      - name: Cache apt packages
+        if: contains(matrix.os, 'ubuntu')
+        uses: actions/cache@v4
+        with:
+          path: ~/apt-cache
+          key: ${{ runner.os }}-apt-${{ hashFiles('.github/workflows/rust.yml') }}
+          restore-keys: |
+            ${{ runner.os }}-apt-
+
+      - name: Restore apt cache
+        if: contains(matrix.os, 'ubuntu')
+        run: |
+          sudo mkdir -p /var/cache/apt/archives
+          sudo cp -r ~/apt-cache/. /var/cache/apt/archives/ 2>/dev/null || true
+
+      - name: Install system packages
+        if: contains(matrix.os, 'ubuntu')
+        run: |
+          sudo apt-get update
+          sudo apt-get update
+          sudo apt-get install -y libx11-dev
+
+      - name: Save apt cache
+        if: contains(matrix.os, 'ubuntu')
+        run: |
+          mkdir -p ~/apt-cache
+          cp /var/cache/apt/archives/*.deb ~/apt-cache/ 2>/dev/null || true
+
       - name: Check formatting
         run: cargo fmt --check
 

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "maolan-plugin-host"
-version = "0.1.2"
+version = "0.1.3"
 edition = "2024"
 description = "Out-of-process audio plugin hosting library"
 authors = ["Maolan Team"]

README.md

@@ -2,10 +2,10 @@
 
 Out-of-process plugin host for the [Maolan DAW](https://maolan.github.io).
 
-This crate provides the reusable plugin-host library. Applications can build
-their own host process around it and communicate with the audio engine over
-shared memory and lightweight event channels. The Maolan DAW's host executable
-is built from `maolan/src/bin/maolan-plugin-host.rs`.
+This crate provides the reusable plugin-host library and a thin
+`maolan-plugin-host` executable around it. Applications can also build their
+own host process and communicate with the audio engine over shared memory and
+lightweight event channels.
 
 ## Supported formats
 

src/au/mod.rs

@@ -767,8 +767,10 @@ mod tests {
     #[test]
     fn au_params_scratch_roundtrip() {
         let params = sample_params();
-        let mut shm = vec![0u8; LAYOUT_SIZE];
-        let ptr = shm.as_mut_ptr();
+        let mut shm = std::iter::repeat_with(ShmHeader::default)
+            .take(LAYOUT_SIZE.div_ceil(std::mem::size_of::<ShmHeader>()))
+            .collect::<Vec<_>>();
+        let ptr = shm.as_mut_ptr().cast::<u8>();
         unsafe {
             init_shm_layout(ptr, LAYOUT_SIZE);
             write_au_params_to_scratch(ptr, &params).expect("write");
@@ -780,8 +782,10 @@ mod tests {
     #[test]
     fn au_state_roundtrip() {
         let state = vec![0xAA; 1000];
-        let mut shm = vec![0u8; LAYOUT_SIZE];
-        let ptr = shm.as_mut_ptr();
+        let mut shm = std::iter::repeat_with(ShmHeader::default)
+            .take(LAYOUT_SIZE.div_ceil(std::mem::size_of::<ShmHeader>()))
+            .collect::<Vec<_>>();
+        let ptr = shm.as_mut_ptr().cast::<u8>();
         unsafe {
             init_shm_layout(ptr, LAYOUT_SIZE);
             let scratch = scratch_ptr(ptr);

src/au/v2.rs

@@ -344,9 +344,9 @@ extern "C" fn input_render_callback(
         // descriptors contiguously after the count, so index past the
         // declared `[AudioBuffer; 1]` via raw pointer arithmetic.
         let buffers = list.buffers.as_mut_ptr();
-        for i in 0..n {
+        for (i, input) in input_ref.ptrs.iter().copied().enumerate().take(n) {
             let buf = &mut *buffers.add(i);
-            buf.data = input_ref.ptrs[i].cast();
+            buf.data = input.cast();
             buf.number_channels = 1;
             buf.data_byte_size = frames * 4;
         }

src/gui_x11.rs

@@ -105,7 +105,7 @@ pub mod x11 {
         }
         /// # Safety
         /// No-op stub; all arguments are ignored.
-        pub unsafe fn create_simple_window(
+        pub unsafe extern "C" fn create_simple_window(
             _display: *mut Display,
             _parent: Window,
             _x: c_int,

src/main.rs

@@ -0,0 +1,5 @@
+use maolan_plugin_host::cli::run;
+
+fn main() {
+    run();
+}

src/vst3/interfaces.rs

@@ -1575,10 +1575,14 @@ fn extract_string128(s: &String128) -> String {
 #[cfg(test)]
 mod tests {
     use super::*;
+    #[cfg(not(miri))]
     use std::fs::{self, File};
+    #[cfg(not(miri))]
     use std::path::PathBuf;
+    #[cfg(not(miri))]
     use std::time::{SystemTime, UNIX_EPOCH};
 
+    #[cfg(not(miri))]
     fn unique_temp_dir(name: &str) -> PathBuf {
         let nanos = SystemTime::now()
             .duration_since(UNIX_EPOCH)
@@ -1615,7 +1619,7 @@ mod tests {
         assert_eq!(extract_cstring(&bytes), "XYZ");
     }
 
-    #[cfg(unix)]
+    #[cfg(all(unix, not(miri)))]
     #[test]
     fn get_module_path_returns_unix_shared_object_path() {
         let bundle_path = unique_temp_dir("vst3-module").join("Example.vst3");
@@ -1634,7 +1638,7 @@ mod tests {
         let _ = fs::remove_dir_all(bundle_path.parent().expect("bundle parent"));
     }
 
-    #[cfg(unix)]
+    #[cfg(all(unix, not(miri)))]
     #[test]
     fn get_module_path_errors_when_unix_module_is_missing() {
         let bundle_path = unique_temp_dir("missing-vst3").join("Missing.vst3");
@@ -1647,7 +1651,7 @@ mod tests {
         let _ = fs::remove_dir_all(bundle_path.parent().expect("bundle parent"));
     }
 
-    #[cfg(target_os = "windows")]
+    #[cfg(all(target_os = "windows", not(miri)))]
     #[test]
     fn get_module_path_returns_windows_vst3_binary_path() {
         let bundle_path = unique_temp_dir("vst3-module").join("Example.vst3");
@@ -1666,7 +1670,7 @@ mod tests {
         let _ = fs::remove_dir_all(bundle_path.parent().expect("bundle parent"));
     }
 
-    #[cfg(target_os = "windows")]
+    #[cfg(all(target_os = "windows", not(miri)))]
     #[test]
     fn get_module_path_errors_when_windows_module_is_missing() {
         let bundle_path = unique_temp_dir("missing-vst3").join("Missing.vst3");

src/vst3_lv2_host.rs

@@ -211,7 +211,7 @@ mod x11_ffi {
         }
         /// # Safety
         /// No-op stub; all arguments are ignored.
-        pub unsafe fn create_simple_window(
+        pub unsafe extern "C" fn create_simple_window(
             _display: *mut Display,
             _parent: Window,
             _x: c_int,

tests/au_gui_smoke.rs

@@ -1,4 +1,4 @@
-#![cfg(target_os = "macos")]
+#![cfg(all(target_os = "macos", not(miri)))]
 use maolan_plugin_protocol::protocol::*;
 use maolan_plugin_protocol::shm::ShmMapping;
 use std::sync::atomic::Ordering;

tests/au_host_smoke.rs

@@ -3,7 +3,7 @@
 //! audio blocks, a DAW-side parameter set, and a state save/restore
 //! roundtrip over the real shared-memory protocol.
 
-#![cfg(target_os = "macos")]
+#![cfg(all(target_os = "macos", not(miri)))]
 
 use maolan_plugin_protocol::protocol::*;
 use maolan_plugin_protocol::ringbuf::RingBuffer;

tests/au_v3_smoke.rs

@@ -11,7 +11,7 @@
 //!    against one and pumps an audio block over SHM. This machine may have no
 //!    AUv3 extensions installed; the test skips with a message in that case.
 
-#![cfg(target_os = "macos")]
+#![cfg(all(target_os = "macos", not(miri)))]
 
 use maolan_plugin_host::au::v3::V3Unit;
 use maolan_plugin_host::au::{AuComponentDesc, AuInitConfig, AuTransport, AuUnit};