Event Polling

These WASI methods provide access to event polling, which allows WASM execution to be suspended until an event happens.

note

Using WASM event polling requires asyncify, to allow WASM execution to be suspended and resumed later.

VirtualEventPoll

Provides a polling system compatible with IVirtualClock (for time based events) and IVirtualFileSystem (for file based events).

The IVirtualFileSystem parameter is optional, if null is passed all file based events will return an error.

IVirtualEventPoll

The base interface for all WASI event polling implementations. If the default implementation does not fit your use-case custom implementations can be built using this interface.

For more details on the methods in IVirtualEventPoll, please see the WASI preview1 documentation.