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7c532813e7
- 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
wasmer-cli-compiler 
This crate is the Wasmer Compiler only CLI.
Features
The Compiler only Wasmer supports the following features:
universal(default): support for the Universal engine.wasi(default): support for WASI.experimental-io-devices: support for experimental IO devices in WASI.emscripten(default): support for Emscripten.singlepass: support for the Singlepass compiler.
CLI commands
Once you have Wasmer installed, you can start executing WebAssembly files easily:
Get the current Wasmer version:
wasmer-compiler -V
Compile a WebAssembly file:
wasmer-compiler compile myfile.wasm -o myfile.wasmu --singlepass --universal