Crate extism

Modules§

convert: The extism-convert crate is used by the Rust SDK and Rust PDK to provide a shared interface for encoding and decoding values that can be passed to Extism function calls.
sdk: Extism C API

host_fn: The host_fn macro is used to define typed host functions
typed_plugin: The typed_plugin macro is used to create a newtype wrapper around Plugin with methods defined for the specified functions.

CancelHandle: A CancelHandle can be used to cancel a running plugin from another thread
CompiledPlugin
CurrentPlugin: CurrentPlugin stores data that is available to the caller in PDK functions, this should only be accessed from inside a host function
DebugOptions
Error: The Error type, a wrapper around a dynamic error type.
Function: Wraps raw host functions with some additional metadata and user data
Manifest: The Manifest type is used to configure the runtime and specify how to load modules.
Plugin: Plugin contains everything needed to execute a WASM function
PluginBuilder: PluginBuilder is used to configure and create Plugin instances
WasmMetadata: Provides additional metadata about a Webassembly module

UserData: UserData is used to store additional data that gets passed into host function callbacks
ValType: An enumeration of all possible value types in WebAssembly. cbindgen:prefix-with-name
Wasm: The Wasm type specifies how to access a WebAssembly module
WasmInput: Defines an input type for Wasm data.

EXTISM_ENV_MODULE
EXTISM_USER_MODULE
PTR: A wrapper around ValType::I64 to specify arguments that are pointers to memory blocks

FromBytes: FromBytes is used to define how a type should be decoded when working with Extism memory. It is used for plugin output and host function input.
FromBytesOwned: FromBytesOwned is similar to FromBytes but it doesn’t borrow from the input slice. FromBytes is automatically implemented for all types that implement FromBytesOwned.
ToBytes: ToBytes is used to define how a type should be encoded when working with Extism memory. It is used for plugin input and host function output.

extism_version: Returns a string containing the Extism version of the current runtime, this is the same as the Cargo package version
set_log_callback: Sets a custom callback to handle logs, each line will be passed to the provided callback instead of being logged to a file. This initializes a default tracing_subscriber and should only be called once.