Shared protocol types for Maolan out-of-process plugin hosting.
This crate defines the low-level IPC primitives used by the Maolan DAW to host audio plugins (CLAP, VST3, LV2) in separate processes:
- Shared-memory layout (
shm,protocol) – fixed-offset structs for audio buffers, parameter/MIDI ring buffers, transport state, and scratch space. - Lock-free ring buffers (
ringbuf) – single-producer / single-consumer queues backed by atomic indices. - Cross-process event pipes (
events) – Unix pipe pairs for bidirectional wake-up between the DAW and the plugin host process.
| Platform | Shared memory | Events |
|---|---|---|
| Unix | ✅ POSIX shm_open / mmap |
✅ pipe(2) + poll(2) |
| Windows | ✅ CreateFileMappingW / MapViewOfFile |
✅ Named auto-reset events (CreateEventW / WaitForSingleObject) |
BSD-2-Clause