The Universal type was essentially a builder of engines that's given a
compiler backend and creates an Engine with .engine() method. The name
was not clear.
The compilation of the actual code linking libxcbcommon-0 is
now gated behind --feature="link_external_libs", while the crate
continues to compile without the feature
Since there's one engine now, it doesn't make sense to initialize a
`Store` with the engine specifically. It's an extra redundant step for
the API user.
- Split functionality out of WasiEnv so that it can support multi-threading
- Added methods to the VFS File Trait that supporting polling
- Implemented basic time functionality for WASI
- Incorported a yield callback for when WASI processes idle
- Improved the error handling on WASI IO calls
- Reduce the verbose logging on some critical WASI calls (write/read)
- Implemented the missing poll functionality for WASI processes
- Moved the syspoll functionality behind a feature flag to default to WASI method
- Refactored the thread sleeping functionality for WASI processes
- Fixed the files system benchmark which was not compiling
- Modified the file system trait so that it is SYNC and thus can handle multiple threads
- Removed the large mutex around filesystem state and implemented granular locks instead
(this is needed to fix a deadlock scenario on the terminal)
- Split the inodes object apart from the state to fix the deadlock scenario.
- Few minor fixes to some warnings when not using certain features
- Sleeping will now call a callback that can be used by the runtime operator when
a WASI thread goes to sleep (for instance to do other work)
- Fixed a bug where paths that exist on the real file system are leaking into VFS
- Timing functions now properly return a time precision on WASI
- Some improved macros for error handling within syscalls (wasi_try_ok!)
- Refactored the remove_directory WASI function which was not working properly
- Refactored the unlink WASI function which was not working properly
- Refactored the poll WASI function which was not working properly
- Updates some of the tests to make them compile again
- Rewrote the OutputCapturer so that it does leak into the internals
Removed conditionnal toml on wasm for VM as it's not builded in that configuration
Added unwind to wasm build
Moved Trap back to vm (from types) as it's used only on Runtime
Move MemoryError back to vm (from types) as it's used on Runtime only scenario
Some cleanup and lint fixes
Removed wasm build case from vfs/host_fs as it's not used
wasi-experimental-io-devices introduces extra build and possibly runtime lib
dependencies, which are unnecessary for the vast majority of users.
Closes#2863
