component/instance.h File Reference

#include <wasmtime/component/component.h>
#include <wasmtime/component/func.h>
#include <wasmtime/conf.h>
#include <wasmtime/store.h>

Go to the source code of this file.

Data Structures
struct	wasmtime_component_instance
	Representation of a instance in Wasmtime. More...

Typedefs
typedef struct wasmtime_component_instance	wasmtime_component_instance_t
	Representation of a instance in Wasmtime. More...

Functions
wasmtime_component_export_index_t *	wasmtime_component_instance_get_export_index (const wasmtime_component_instance_t *instance, wasmtime_context_t *context, const wasmtime_component_export_index_t *instance_export_index, const char *name, size_t name_len)
	A methods similar to wasmtime_component_get_export_index except for this instance. More...
bool	wasmtime_component_instance_get_func (const wasmtime_component_instance_t *instance, wasmtime_context_t *context, const wasmtime_component_export_index_t *export_index, wasmtime_component_func_t *func_out)
	Looks up an exported function by name within this wasmtime_component_instance_t. More...

Typedef Documentation

wasmtime_component_instance_t

typedef struct wasmtime_component_instance wasmtime_component_instance_t

Representation of a instance in Wasmtime.

Instances are represented with a 64-bit identifying integer in Wasmtime. They do not have any destructor associated with them. Instances cannot interoperate between wasmtime_store_t instances and if the wrong instance is passed to the wrong store then it may trigger an assertion to abort the process.

Function Documentation

wasmtime_component_instance_get_export_index()

wasmtime_component_export_index_t * wasmtime_component_instance_get_export_index	(	const wasmtime_component_instance_t *	instance,
		wasmtime_context_t *	context,
		const wasmtime_component_export_index_t *	instance_export_index,
		const char *	name,
		size_t	name_len
	)

A methods similar to wasmtime_component_get_export_index except for this instance.

Parameters

instance	the instance to look up name in
context	the context where instance lives in
instance_export_index	optional (i.e. nullable) instance to look up in
name	the name of the export
name_len	length of name in bytes

Returns

export index if found, else NULL

wasmtime_component_instance_get_func()

bool wasmtime_component_instance_get_func	(	const wasmtime_component_instance_t *	instance,
		wasmtime_context_t *	context,
		const wasmtime_component_export_index_t *	export_index,
		wasmtime_component_func_t *	func_out
	)

Looks up an exported function by name within this wasmtime_component_instance_t.

Parameters

instance	the instance to look up this name in
context	the store that instance lives in
export_index	the export index of the function
func_out	if found, the function corresponding to name

Returns

boolean marking if a function for name was found