mirror of
https://github.com/fluencelabs/wasmer
synced 2025-03-26 12:41:04 +00:00
1414 lines
42 KiB
C
1414 lines
42 KiB
C
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#if !defined(WASMER_H_MACROS)
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#define WASMER_H_MACROS
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// Define the `ARCH_X86_X64` constant.
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#if defined(MSVC) && defined(_M_AMD64)
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# define ARCH_X86_64
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#elif (defined(GCC) || defined(__GNUC__) || defined(__clang__)) && defined(__x86_64__)
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# define ARCH_X86_64
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#endif
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// Compatibility with non-Clang compilers.
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#if !defined(__has_attribute)
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# define __has_attribute(x) 0
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#endif
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// Compatibility with non-Clang compilers.
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#if !defined(__has_declspec_attribute)
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# define __has_declspec_attribute(x) 0
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#endif
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// Define the `DEPRECATED` macro.
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#if defined(GCC) || defined(__GNUC__) || __has_attribute(deprecated)
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# define DEPRECATED(message) __attribute__((deprecated(message)))
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#elif defined(MSVC) || __has_declspec_attribute(deprecated)
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# define DEPRECATED(message) __declspec(deprecated(message))
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#endif
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#define WASMER_WASI_ENABLED
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#endif // WASMER_H_MACROS
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#ifndef WASMER_H
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#define WASMER_H
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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#if defined(WASMER_WASI_ENABLED)
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enum Version {
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/**
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* Version cannot be detected or is unknown.
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*/
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Unknown = 0,
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/**
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* Latest version. See `wasmer_wasi::WasiVersion::Latest` to
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* learn more.
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*/
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Latest = 1,
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/**
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* `wasi_unstable`.
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*/
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Snapshot0 = 2,
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/**
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* `wasi_snapshot_preview1`.
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*/
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Snapshot1 = 3,
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};
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typedef uint8_t Version;
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#endif
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/**
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* List of export/import kinds.
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*/
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enum wasmer_import_export_kind {
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/**
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* The export/import is a function.
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*/
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WASM_FUNCTION = 0,
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/**
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* The export/import is a global.
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*/
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WASM_GLOBAL = 1,
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/**
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* The export/import is a memory.
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*/
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WASM_MEMORY = 2,
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/**
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* The export/import is a table.
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*/
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WASM_TABLE = 3,
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};
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typedef uint32_t wasmer_import_export_kind;
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/**
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* The `wasmer_result_t` struct is a type that represents either a
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* success, or a failure.
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*/
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typedef enum {
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/**
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* Represents a success.
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*/
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WASMER_OK = 1,
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/**
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* Represents a failure.
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*/
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WASMER_ERROR = 2,
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} wasmer_result_t;
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/**
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* Represents all possibles WebAssembly value types.
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*
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* See `wasmer_value_t` to get a complete example.
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*/
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enum wasmer_value_tag {
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/**
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* Represents the `i32` WebAssembly type.
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*/
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WASM_I32,
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/**
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* Represents the `i64` WebAssembly type.
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*/
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WASM_I64,
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/**
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* Represents the `f32` WebAssembly type.
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*/
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WASM_F32,
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/**
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* Represents the `f64` WebAssembly type.
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*/
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WASM_F64,
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};
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typedef uint32_t wasmer_value_tag;
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typedef struct {
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} wasmer_module_t;
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/**
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* Opaque pointer to a `wasmer_runtime::Instance` value in Rust.
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*
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* A `wasmer_runtime::Instance` represents a WebAssembly instance. It
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* is generally generated by the `wasmer_instantiate()` function, or by
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* the `wasmer_module_instantiate()` function for the most common paths.
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*/
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typedef struct {
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} wasmer_instance_t;
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typedef struct {
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const uint8_t *bytes;
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uint32_t bytes_len;
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} wasmer_byte_array;
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#if defined(WASMER_EMSCRIPTEN_ENABLED)
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/**
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* Type used to construct an import_object_t with Emscripten imports.
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*/
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typedef struct {
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} wasmer_emscripten_globals_t;
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#endif
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typedef struct {
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} wasmer_import_object_t;
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/**
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* Opaque pointer to `NamedExportDescriptor`.
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*/
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typedef struct {
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} wasmer_export_descriptor_t;
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/**
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* Opaque pointer to `NamedExportDescriptors`.
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*/
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typedef struct {
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} wasmer_export_descriptors_t;
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/**
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* Opaque pointer to `wasmer_export_t`.
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*/
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typedef struct {
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} wasmer_export_func_t;
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/**
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* Represents a WebAssembly value.
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*
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* This is a [Rust union][rust-union], which is equivalent to the C
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* union. See `wasmer_value_t` to get a complete example.
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*
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* [rust-union]: https://doc.rust-lang.org/reference/items/unions.html
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*/
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typedef union {
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int32_t I32;
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int64_t I64;
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float F32;
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double F64;
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} wasmer_value;
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/**
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* Represents a WebAssembly type and value pair,
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* i.e. `wasmer_value_tag` and `wasmer_value`. Since the latter is an
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* union, it's the safe way to read or write a WebAssembly value in
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* C.
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*
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* Example:
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*
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* ```c
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* // Create a WebAssembly value.
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* wasmer_value_t wasm_value = {
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* .tag = WASM_I32,
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* .value.I32 = 42,
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* };
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*
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* // Read a WebAssembly value.
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* if (wasm_value.tag == WASM_I32) {
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* int32_t x = wasm_value.value.I32;
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* // …
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* }
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* ```
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*/
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typedef struct {
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/**
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* The value type.
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*/
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wasmer_value_tag tag;
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/**
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* The value.
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*/
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wasmer_value value;
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} wasmer_value_t;
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/**
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* Opaque pointer to `NamedExport`.
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*/
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typedef struct {
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} wasmer_export_t;
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typedef struct {
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} wasmer_memory_t;
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/**
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* Opaque pointer to the opaque structure `crate::NamedExports`,
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* which is a wrapper around a vector of the opaque structure
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* `crate::NamedExport`.
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*
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* Check the `wasmer_instance_exports()` function to learn more.
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*/
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typedef struct {
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} wasmer_exports_t;
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typedef struct {
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} wasmer_global_t;
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typedef struct {
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bool mutable_;
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wasmer_value_tag kind;
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} wasmer_global_descriptor_t;
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typedef struct {
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} wasmer_import_descriptor_t;
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typedef struct {
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} wasmer_import_descriptors_t;
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typedef struct {
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} wasmer_import_func_t;
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typedef struct {
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} wasmer_table_t;
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/**
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* Union of import/export value.
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*/
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typedef union {
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const wasmer_import_func_t *func;
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const wasmer_table_t *table;
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const wasmer_memory_t *memory;
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const wasmer_global_t *global;
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} wasmer_import_export_value;
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typedef struct {
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wasmer_byte_array module_name;
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wasmer_byte_array import_name;
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wasmer_import_export_kind tag;
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wasmer_import_export_value value;
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} wasmer_import_t;
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typedef struct {
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} wasmer_import_object_iter_t;
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/**
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* Opaque pointer to a `wasmer_runtime::Ctx` value in Rust.
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*
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* An instance context is passed to any host function (aka imported
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* function) as the first argument. It is necessary to read the
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* instance data or the memory, respectively with the
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* `wasmer_instance_context_data_get()` function, and the
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* `wasmer_instance_context_memory()` function.
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*
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* It is also possible to get the instance context outside a host
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* function by using the `wasmer_instance_context_get()`
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* function. See also `wasmer_instance_context_data_set()` to set the
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* instance context data.
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*
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* Example:
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*
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* ```c
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* // A host function that prints data from the WebAssembly memory to
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* // the standard output.
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* void print(wasmer_instance_context_t *context, int32_t pointer, int32_t length) {
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* // Use `wasmer_instance_context` to get back the first instance memory.
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* const wasmer_memory_t *memory = wasmer_instance_context_memory(context, 0);
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*
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* // Continue…
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* }
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* ```
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*/
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typedef struct {
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} wasmer_instance_context_t;
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typedef struct {
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bool has_some;
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uint32_t some;
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} wasmer_limit_option_t;
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typedef struct {
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uint32_t min;
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wasmer_limit_option_t max;
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} wasmer_limits_t;
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typedef struct {
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} wasmer_serialized_module_t;
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#if (!defined(_WIN32) && defined(ARCH_X86_64))
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typedef struct {
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} wasmer_trampoline_buffer_builder_t;
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#endif
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#if (!defined(_WIN32) && defined(ARCH_X86_64))
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typedef struct {
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} wasmer_trampoline_callable_t;
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#endif
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#if (!defined(_WIN32) && defined(ARCH_X86_64))
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typedef struct {
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} wasmer_trampoline_buffer_t;
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#endif
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#if defined(WASMER_WASI_ENABLED)
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/**
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* Opens a directory that's visible to the WASI module as `alias` but
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* is backed by the host file at `host_file_path`
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*/
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typedef struct {
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/**
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* What the WASI module will see in its virtual root
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*/
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wasmer_byte_array alias;
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/**
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* The backing file that the WASI module will interact with via the alias
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*/
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wasmer_byte_array host_file_path;
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} wasmer_wasi_map_dir_entry_t;
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#endif
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/**
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* Creates a new Module from the given wasm bytes.
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*
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* Returns `wasmer_result_t::WASMER_OK` upon success.
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*
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* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
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* and `wasmer_last_error_message` to get an error message.
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*/
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wasmer_result_t wasmer_compile(wasmer_module_t **module,
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uint8_t *wasm_bytes,
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uint32_t wasm_bytes_len);
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#if defined(WASMER_EMSCRIPTEN_ENABLED)
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/**
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* Convenience function for setting up arguments and calling the Emscripten
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* main function.
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*
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* WARNING:
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*
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* Do not call this function on untrusted code when operating without
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* additional sandboxing in place.
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* Emscripten has access to many host system calls and therefore may do very
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* bad things.
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*/
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wasmer_result_t wasmer_emscripten_call_main(wasmer_instance_t *instance,
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const wasmer_byte_array *args,
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unsigned int args_len);
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#endif
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#if defined(WASMER_EMSCRIPTEN_ENABLED)
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/**
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* Destroy `wasmer_emscrpten_globals_t` created by
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* `wasmer_emscripten_get_emscripten_globals`.
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*/
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void wasmer_emscripten_destroy_globals(wasmer_emscripten_globals_t *globals);
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#endif
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#if defined(WASMER_EMSCRIPTEN_ENABLED)
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/**
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* Create a `wasmer_import_object_t` with Emscripten imports, use
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* `wasmer_emscripten_get_emscripten_globals` to get a
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* `wasmer_emscripten_globals_t` from a `wasmer_module_t`.
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*
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* WARNING:
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*1
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* This `import_object_t` contains thin-wrappers around host system calls.
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* Do not use this to execute untrusted code without additional sandboxing.
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*/
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wasmer_import_object_t *wasmer_emscripten_generate_import_object(wasmer_emscripten_globals_t *globals);
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#endif
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#if defined(WASMER_EMSCRIPTEN_ENABLED)
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/**
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* Create a `wasmer_emscripten_globals_t` from a Wasm module.
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*/
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wasmer_emscripten_globals_t *wasmer_emscripten_get_globals(const wasmer_module_t *module);
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#endif
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#if defined(WASMER_EMSCRIPTEN_ENABLED)
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/**
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* Execute global constructors (required if the module is compiled from C++)
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* and sets up the internal environment.
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*
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* This function sets the data pointer in the same way that
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* [`wasmer_instance_context_data_set`] does.
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*/
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wasmer_result_t wasmer_emscripten_set_up(wasmer_instance_t *instance,
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wasmer_emscripten_globals_t *globals);
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#endif
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/**
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* Gets export descriptor kind
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*/
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wasmer_import_export_kind wasmer_export_descriptor_kind(wasmer_export_descriptor_t *export_);
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/**
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* Gets name for the export descriptor
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*/
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wasmer_byte_array wasmer_export_descriptor_name(wasmer_export_descriptor_t *export_descriptor);
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/**
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* Gets export descriptors for the given module
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*
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* The caller owns the object and should call `wasmer_export_descriptors_destroy` to free it.
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*/
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void wasmer_export_descriptors(const wasmer_module_t *module,
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wasmer_export_descriptors_t **export_descriptors);
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/**
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* Frees the memory for the given export descriptors
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*/
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void wasmer_export_descriptors_destroy(wasmer_export_descriptors_t *export_descriptors);
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/**
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* Gets export descriptor by index
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*/
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wasmer_export_descriptor_t *wasmer_export_descriptors_get(wasmer_export_descriptors_t *export_descriptors,
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int idx);
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/**
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* Gets the length of the export descriptors
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*/
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int wasmer_export_descriptors_len(wasmer_export_descriptors_t *exports);
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/**
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* Calls a `func` with the provided parameters.
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* Results are set using the provided `results` pointer.
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*
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* Returns `wasmer_result_t::WASMER_OK` upon success.
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*
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* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
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* and `wasmer_last_error_message` to get an error message.
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*/
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wasmer_result_t wasmer_export_func_call(const wasmer_export_func_t *func,
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const wasmer_value_t *params,
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unsigned int params_len,
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wasmer_value_t *results,
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unsigned int results_len);
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/**
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* Sets the params buffer to the parameter types of the given wasmer_export_func_t
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*
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* Returns `wasmer_result_t::WASMER_OK` upon success.
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*
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* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
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* and `wasmer_last_error_message` to get an error message.
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*/
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wasmer_result_t wasmer_export_func_params(const wasmer_export_func_t *func,
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wasmer_value_tag *params,
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uint32_t params_len);
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/**
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* Sets the result parameter to the arity of the params of the wasmer_export_func_t
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*
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* Returns `wasmer_result_t::WASMER_OK` upon success.
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*
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* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
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* and `wasmer_last_error_message` to get an error message.
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*/
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wasmer_result_t wasmer_export_func_params_arity(const wasmer_export_func_t *func, uint32_t *result);
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/**
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* Sets the returns buffer to the parameter types of the given wasmer_export_func_t
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*
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* Returns `wasmer_result_t::WASMER_OK` upon success.
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*
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* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
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* and `wasmer_last_error_message` to get an error message.
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*/
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wasmer_result_t wasmer_export_func_returns(const wasmer_export_func_t *func,
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wasmer_value_tag *returns,
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uint32_t returns_len);
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/**
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* Sets the result parameter to the arity of the returns of the wasmer_export_func_t
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*
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* Returns `wasmer_result_t::WASMER_OK` upon success.
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*
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* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
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* and `wasmer_last_error_message` to get an error message.
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*/
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wasmer_result_t wasmer_export_func_returns_arity(const wasmer_export_func_t *func,
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uint32_t *result);
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/**
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* Gets wasmer_export kind
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*/
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wasmer_import_export_kind wasmer_export_kind(wasmer_export_t *export_);
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/**
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* Gets name from wasmer_export
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*/
|
|
wasmer_byte_array wasmer_export_name(wasmer_export_t *export_);
|
|
|
|
/**
|
|
* Gets export func from export
|
|
*/
|
|
const wasmer_export_func_t *wasmer_export_to_func(const wasmer_export_t *export_);
|
|
|
|
/**
|
|
* Gets a memory pointer from an export pointer.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_export_to_memory(const wasmer_export_t *export_, wasmer_memory_t **memory);
|
|
|
|
/**
|
|
* Frees the memory for the given exports.
|
|
*
|
|
* Check the `wasmer_instance_exports()` function to get a complete
|
|
* example.
|
|
*
|
|
* If `exports` is a null pointer, this function does nothing.
|
|
*
|
|
* Example:
|
|
*
|
|
* ```c
|
|
* // Get some exports.
|
|
* wasmer_exports_t *exports = NULL;
|
|
* wasmer_instance_exports(instance, &exports);
|
|
*
|
|
* // Destroy the exports.
|
|
* wasmer_exports_destroy(exports);
|
|
* ```
|
|
*/
|
|
void wasmer_exports_destroy(wasmer_exports_t *exports);
|
|
|
|
/**
|
|
* Gets wasmer_export by index
|
|
*/
|
|
wasmer_export_t *wasmer_exports_get(wasmer_exports_t *exports, int idx);
|
|
|
|
/**
|
|
* Gets the length of the exports
|
|
*/
|
|
int wasmer_exports_len(wasmer_exports_t *exports);
|
|
|
|
/**
|
|
* Frees memory for the given Global
|
|
*/
|
|
void wasmer_global_destroy(wasmer_global_t *global);
|
|
|
|
/**
|
|
* Gets the value stored by the given Global
|
|
*/
|
|
wasmer_value_t wasmer_global_get(wasmer_global_t *global);
|
|
|
|
/**
|
|
* Returns a descriptor (type, mutability) of the given Global
|
|
*/
|
|
wasmer_global_descriptor_t wasmer_global_get_descriptor(wasmer_global_t *global);
|
|
|
|
/**
|
|
* Creates a new Global and returns a pointer to it.
|
|
* The caller owns the object and should call `wasmer_global_destroy` to free it.
|
|
*/
|
|
wasmer_global_t *wasmer_global_new(wasmer_value_t value, bool mutable_);
|
|
|
|
/**
|
|
* Sets the value stored by the given Global
|
|
*/
|
|
void wasmer_global_set(wasmer_global_t *global, wasmer_value_t value);
|
|
|
|
/**
|
|
* Gets export descriptor kind
|
|
*/
|
|
wasmer_import_export_kind wasmer_import_descriptor_kind(wasmer_import_descriptor_t *export_);
|
|
|
|
/**
|
|
* Gets module name for the import descriptor
|
|
*/
|
|
wasmer_byte_array wasmer_import_descriptor_module_name(wasmer_import_descriptor_t *import_descriptor);
|
|
|
|
/**
|
|
* Gets name for the import descriptor
|
|
*/
|
|
wasmer_byte_array wasmer_import_descriptor_name(wasmer_import_descriptor_t *import_descriptor);
|
|
|
|
/**
|
|
* Gets import descriptors for the given module
|
|
*
|
|
* The caller owns the object and should call `wasmer_import_descriptors_destroy` to free it.
|
|
*/
|
|
void wasmer_import_descriptors(const wasmer_module_t *module,
|
|
wasmer_import_descriptors_t **import_descriptors);
|
|
|
|
/**
|
|
* Frees the memory for the given import descriptors
|
|
*/
|
|
void wasmer_import_descriptors_destroy(wasmer_import_descriptors_t *import_descriptors);
|
|
|
|
/**
|
|
* Gets import descriptor by index
|
|
*/
|
|
wasmer_import_descriptor_t *wasmer_import_descriptors_get(wasmer_import_descriptors_t *import_descriptors,
|
|
unsigned int idx);
|
|
|
|
/**
|
|
* Gets the length of the import descriptors
|
|
*/
|
|
unsigned int wasmer_import_descriptors_len(wasmer_import_descriptors_t *exports);
|
|
|
|
/**
|
|
* Frees memory for the given Func
|
|
*/
|
|
void wasmer_import_func_destroy(wasmer_import_func_t *func);
|
|
|
|
/**
|
|
* Creates new host function, aka imported function. `func` is a
|
|
* function pointer, where the first argument is the famous `vm::Ctx`
|
|
* (in Rust), or `wasmer_instance_context_t` (in C). All arguments
|
|
* must be typed with compatible WebAssembly native types:
|
|
*
|
|
* | WebAssembly type | C/C++ type |
|
|
* | ---------------- | ---------- |
|
|
* | `i32` | `int32_t` |
|
|
* | `i64` | `int64_t` |
|
|
* | `f32` | `float` |
|
|
* | `f64` | `double` |
|
|
*
|
|
* The function pointer must have a lifetime greater than the
|
|
* WebAssembly instance lifetime.
|
|
*
|
|
* The caller owns the object and should call
|
|
* `wasmer_import_func_destroy` to free it.
|
|
*/
|
|
wasmer_import_func_t *wasmer_import_func_new(void (*func)(void *data),
|
|
const wasmer_value_tag *params,
|
|
unsigned int params_len,
|
|
const wasmer_value_tag *returns,
|
|
unsigned int returns_len);
|
|
|
|
/**
|
|
* Sets the params buffer to the parameter types of the given wasmer_import_func_t
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_import_func_params(const wasmer_import_func_t *func,
|
|
wasmer_value_tag *params,
|
|
unsigned int params_len);
|
|
|
|
/**
|
|
* Sets the result parameter to the arity of the params of the wasmer_import_func_t
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_import_func_params_arity(const wasmer_import_func_t *func, uint32_t *result);
|
|
|
|
/**
|
|
* Sets the returns buffer to the parameter types of the given wasmer_import_func_t
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_import_func_returns(const wasmer_import_func_t *func,
|
|
wasmer_value_tag *returns,
|
|
unsigned int returns_len);
|
|
|
|
/**
|
|
* Sets the result parameter to the arity of the returns of the wasmer_import_func_t
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_import_func_returns_arity(const wasmer_import_func_t *func,
|
|
uint32_t *result);
|
|
|
|
/**
|
|
* Frees memory of the given ImportObject
|
|
*/
|
|
void wasmer_import_object_destroy(wasmer_import_object_t *import_object);
|
|
|
|
/**
|
|
* Extends an existing import object with new imports
|
|
*/
|
|
wasmer_result_t wasmer_import_object_extend(wasmer_import_object_t *import_object,
|
|
const wasmer_import_t *imports,
|
|
unsigned int imports_len);
|
|
|
|
/**
|
|
* Gets an entry from an ImportObject at the name and namespace.
|
|
* Stores `name`, `namespace`, and `import_export_value` in `import`.
|
|
* Thus these must remain valid for the lifetime of `import`.
|
|
*
|
|
* The caller owns all data involved.
|
|
* `import_export_value` will be written to based on `tag`.
|
|
*/
|
|
wasmer_result_t wasmer_import_object_get_import(const wasmer_import_object_t *import_object,
|
|
wasmer_byte_array namespace_,
|
|
wasmer_byte_array name,
|
|
wasmer_import_t *import,
|
|
wasmer_import_export_value *import_export_value,
|
|
uint32_t tag);
|
|
|
|
/**
|
|
* Frees the memory allocated in `wasmer_import_object_iter_next`
|
|
*
|
|
* This function does not free the memory in `wasmer_import_object_t`;
|
|
* it only frees memory allocated while querying a `wasmer_import_object_t`.
|
|
*/
|
|
void wasmer_import_object_imports_destroy(wasmer_import_t *imports, uint32_t imports_len);
|
|
|
|
/**
|
|
* Returns true if further calls to `wasmer_import_object_iter_next` will
|
|
* not return any new data
|
|
*/
|
|
bool wasmer_import_object_iter_at_end(wasmer_import_object_iter_t *import_object_iter);
|
|
|
|
/**
|
|
* Frees the memory allocated by `wasmer_import_object_iterate_functions`
|
|
*/
|
|
void wasmer_import_object_iter_destroy(wasmer_import_object_iter_t *import_object_iter);
|
|
|
|
/**
|
|
* Writes the next value to `import`. `WASMER_ERROR` is returned if there
|
|
* was an error or there's nothing left to return.
|
|
*
|
|
* To free the memory allocated here, pass the import to `wasmer_import_object_imports_destroy`.
|
|
* To check if the iterator is done, use `wasmer_import_object_iter_at_end`.
|
|
*/
|
|
wasmer_result_t wasmer_import_object_iter_next(wasmer_import_object_iter_t *import_object_iter,
|
|
wasmer_import_t *import);
|
|
|
|
/**
|
|
* Create an iterator over the functions in the import object.
|
|
* Get the next import with `wasmer_import_object_iter_next`
|
|
* Free the iterator with `wasmer_import_object_iter_destroy`
|
|
*/
|
|
wasmer_import_object_iter_t *wasmer_import_object_iterate_functions(const wasmer_import_object_t *import_object);
|
|
|
|
/**
|
|
* Creates a new empty import object.
|
|
* See also `wasmer_import_object_append`
|
|
*/
|
|
wasmer_import_object_t *wasmer_import_object_new(void);
|
|
|
|
/**
|
|
* Calls an exported function of a WebAssembly instance by `name`
|
|
* with the provided parameters. The exported function results are
|
|
* stored on the provided `results` pointer.
|
|
*
|
|
* This function returns `wasmer_result_t::WASMER_OK` upon success,
|
|
* `wasmer_result_t::WASMER_ERROR` otherwise. You can use
|
|
* `wasmer_last_error_message()` to get the generated error message.
|
|
*
|
|
* Potential errors are the following:
|
|
*
|
|
* * `instance` is a null pointer,
|
|
* * `name` is a null pointer,
|
|
* * `params` is a null pointer.
|
|
*
|
|
* Example of calling an exported function that needs two parameters, and returns one value:
|
|
*
|
|
* ```c
|
|
* // First argument.
|
|
* wasmer_value_t argument_one = {
|
|
* .tag = WASM_I32,
|
|
* .value.I32 = 3,
|
|
* };
|
|
*
|
|
* // Second argument.
|
|
* wasmer_value_t argument_two = {
|
|
* .tag = WASM_I32,
|
|
* .value.I32 = 4,
|
|
* };
|
|
*
|
|
* // First result.
|
|
* wasmer_value_t result_one;
|
|
*
|
|
* // All arguments and results.
|
|
* wasmer_value_t arguments[] = {argument_one, argument_two};
|
|
* wasmer_value_t results[] = {result_one};
|
|
*
|
|
* wasmer_result_t call_result = wasmer_instance_call(
|
|
* instance, // instance pointer
|
|
* "sum", // the exported function name
|
|
* arguments, // the arguments
|
|
* 2, // the number of arguments
|
|
* results, // the results
|
|
* 1 // the number of results
|
|
* );
|
|
*
|
|
* if (call_result == WASMER_OK) {
|
|
* printf("Result is: %d\n", results[0].value.I32);
|
|
* }
|
|
* ```
|
|
*/
|
|
wasmer_result_t wasmer_instance_call(wasmer_instance_t *instance,
|
|
const char *name,
|
|
const wasmer_value_t *params,
|
|
uint32_t params_len,
|
|
wasmer_value_t *results,
|
|
uint32_t results_len);
|
|
|
|
/**
|
|
* Gets the data that can be hold by an instance.
|
|
*
|
|
* This function is complementary of
|
|
* `wasmer_instance_context_data_set()`. Please read its
|
|
* documentation. You can also read the documentation of
|
|
* `wasmer_instance_context_t` to get other examples.
|
|
*
|
|
* This function returns nothing if `ctx` is a null pointer.
|
|
*/
|
|
void *wasmer_instance_context_data_get(const wasmer_instance_context_t *ctx);
|
|
|
|
/**
|
|
* Sets the data that can be hold by an instance context.
|
|
*
|
|
* An instance context (represented by the opaque
|
|
* `wasmer_instance_context_t` structure) can hold user-defined
|
|
* data. This function sets the data. This function is complementary
|
|
* of `wasmer_instance_context_data_get()`.
|
|
*
|
|
* This function does nothing if `instance` is a null pointer.
|
|
*
|
|
* Example:
|
|
*
|
|
* ```c
|
|
* // Define your own data.
|
|
* typedef struct {
|
|
* // …
|
|
* } my_data;
|
|
*
|
|
* // Allocate them and set them on the given instance.
|
|
* my_data *data = malloc(sizeof(my_data));
|
|
* data->… = …;
|
|
* wasmer_instance_context_data_set(instance, (void*) my_data);
|
|
*
|
|
* // You can read your data.
|
|
* {
|
|
* my_data *data = (my_data*) wasmer_instance_context_data_get(wasmer_instance_context_get(instance));
|
|
* // …
|
|
* }
|
|
* ```
|
|
*/
|
|
void wasmer_instance_context_data_set(wasmer_instance_t *instance,
|
|
void *data_ptr);
|
|
|
|
/**
|
|
* Returns the instance context. Learn more by looking at the
|
|
* `wasmer_instance_context_t` struct.
|
|
*
|
|
* This function returns `null` if `instance` is a null pointer.
|
|
*
|
|
* Example:
|
|
*
|
|
* ```c
|
|
* const wasmer_instance_context_get *context = wasmer_instance_context_get(instance);
|
|
* my_data *data = (my_data *) wasmer_instance_context_data_get(context);
|
|
* // Do something with `my_data`.
|
|
* ```
|
|
*
|
|
* It is often useful with `wasmer_instance_context_data_set()`.
|
|
*/
|
|
const wasmer_instance_context_t *wasmer_instance_context_get(wasmer_instance_t *instance);
|
|
|
|
/**
|
|
* Gets the `memory_idx`th memory of the instance.
|
|
*
|
|
* Note that the index is always `0` until multiple memories are supported.
|
|
*
|
|
* This function is mostly used inside host functions (aka imported
|
|
* functions) to read the instance memory.
|
|
*
|
|
* Example of a _host function_ that reads and prints a string based on a pointer and a length:
|
|
*
|
|
* ```c
|
|
* void print_string(const wasmer_instance_context_t *context, int32_t pointer, int32_t length) {
|
|
* // Get the 0th memory.
|
|
* const wasmer_memory_t *memory = wasmer_instance_context_memory(context, 0);
|
|
*
|
|
* // Get the memory data as a pointer.
|
|
* uint8_t *memory_bytes = wasmer_memory_data(memory);
|
|
*
|
|
* // Print what we assumed to be a string!
|
|
* printf("%.*s", length, memory_bytes + pointer);
|
|
* }
|
|
* ```
|
|
*/
|
|
const wasmer_memory_t *wasmer_instance_context_memory(const wasmer_instance_context_t *ctx,
|
|
uint32_t _memory_idx);
|
|
|
|
/**
|
|
* Frees memory for the given `wasmer_instance_t`.
|
|
*
|
|
* Check the `wasmer_instantiate()` function to get a complete
|
|
* example.
|
|
*
|
|
* If `instance` is a null pointer, this function does nothing.
|
|
*
|
|
* Example:
|
|
*
|
|
* ```c
|
|
* // Get an instance.
|
|
* wasmer_instance_t *instance = NULL;
|
|
* wasmer_instantiate(&instance, bytes, bytes_length, imports, 0);
|
|
*
|
|
* // Destroy the instance.
|
|
* wasmer_instance_destroy(instance);
|
|
* ```
|
|
*/
|
|
void wasmer_instance_destroy(wasmer_instance_t *instance);
|
|
|
|
/**
|
|
* Gets all the exports of the given WebAssembly instance.
|
|
*
|
|
* This function stores a Rust vector of exports into `exports` as an
|
|
* opaque pointer of kind `wasmer_exports_t`.
|
|
*
|
|
* As is, you can do anything with `exports` except using the
|
|
* companion functions, like `wasmer_exports_len()`,
|
|
* `wasmer_exports_get()` or `wasmer_export_kind()`. See the example below.
|
|
*
|
|
* **Warning**: The caller owns the object and should call
|
|
* `wasmer_exports_destroy()` to free it.
|
|
*
|
|
* Example:
|
|
*
|
|
* ```c
|
|
* // Get the exports.
|
|
* wasmer_exports_t *exports = NULL;
|
|
* wasmer_instance_exports(instance, &exports);
|
|
*
|
|
* // Get the number of exports.
|
|
* int exports_length = wasmer_exports_len(exports);
|
|
* printf("Number of exports: %d\n", exports_length);
|
|
*
|
|
* // Read the first export.
|
|
* wasmer_export_t *export = wasmer_exports_get(exports, 0);
|
|
*
|
|
* // Get the kind of the export.
|
|
* wasmer_import_export_kind export_kind = wasmer_export_kind(export);
|
|
*
|
|
* // Assert it is a function (why not).
|
|
* assert(export_kind == WASM_FUNCTION);
|
|
*
|
|
* // Read the export name.
|
|
* wasmer_byte_array name_bytes = wasmer_export_name(export);
|
|
*
|
|
* assert(name_bytes.bytes_len == sizeof("sum") - 1);
|
|
* assert(memcmp(name_bytes.bytes, "sum", sizeof("sum") - 1) == 0);
|
|
*
|
|
* // Destroy the exports.
|
|
* wasmer_exports_destroy(exports);
|
|
* ```
|
|
*/
|
|
void wasmer_instance_exports(wasmer_instance_t *instance, wasmer_exports_t **exports);
|
|
|
|
/**
|
|
* Creates a new WebAssembly instance from the given bytes and imports.
|
|
*
|
|
* The result is stored in the first argument `instance` if
|
|
* successful, i.e. when the function returns
|
|
* `wasmer_result_t::WASMER_OK`. Otherwise
|
|
* `wasmer_result_t::WASMER_ERROR` is returned, and
|
|
* `wasmer_last_error_length()` with `wasmer_last_error_message()` must
|
|
* be used to read the error message.
|
|
*
|
|
* The caller is responsible to free the instance with
|
|
* `wasmer_instance_destroy()`.
|
|
*
|
|
* Example:
|
|
*
|
|
* ```c
|
|
* // 1. Read a WebAssembly module from a file.
|
|
* FILE *file = fopen("sum.wasm", "r");
|
|
* fseek(file, 0, SEEK_END);
|
|
* long bytes_length = ftell(file);
|
|
* uint8_t *bytes = malloc(bytes_length);
|
|
* fseek(file, 0, SEEK_SET);
|
|
* fread(bytes, 1, bytes_length, file);
|
|
* fclose(file);
|
|
*
|
|
* // 2. Declare the imports (here, none).
|
|
* wasmer_import_t imports[] = {};
|
|
*
|
|
* // 3. Instantiate the WebAssembly module.
|
|
* wasmer_instance_t *instance = NULL;
|
|
* wasmer_result_t result = wasmer_instantiate(&instance, bytes, bytes_length, imports, 0);
|
|
*
|
|
* // 4. Check for errors.
|
|
* if (result != WASMER_OK) {
|
|
* int error_length = wasmer_last_error_length();
|
|
* char *error = malloc(error_length);
|
|
* wasmer_last_error_message(error, error_length);
|
|
* // Do something with `error`…
|
|
* }
|
|
*
|
|
* // 5. Free the memory!
|
|
* wasmer_instance_destroy(instance);
|
|
* ```
|
|
*/
|
|
wasmer_result_t wasmer_instantiate(wasmer_instance_t **instance,
|
|
uint8_t *wasm_bytes,
|
|
uint32_t wasm_bytes_len,
|
|
wasmer_import_t *imports,
|
|
int imports_len);
|
|
|
|
/**
|
|
* Gets the length in bytes of the last error if any.
|
|
*
|
|
* This can be used to dynamically allocate a buffer with the correct number of
|
|
* bytes needed to store a message.
|
|
*
|
|
* See `wasmer_last_error_message()` to get a full example.
|
|
*/
|
|
int wasmer_last_error_length(void);
|
|
|
|
/**
|
|
* Gets the last error message if any into the provided buffer
|
|
* `buffer` up to the given `length`.
|
|
*
|
|
* The `length` parameter must be large enough to store the last
|
|
* error message. Ideally, the value should come from
|
|
* `wasmer_last_error_length()`.
|
|
*
|
|
* The function returns the length of the string in bytes, `-1` if an
|
|
* error occurs. Potential errors are:
|
|
*
|
|
* * The buffer is a null pointer,
|
|
* * The buffer is too smal to hold the error message.
|
|
*
|
|
* Note: The error message always has a trailing null character.
|
|
*
|
|
* Example:
|
|
*
|
|
* ```c
|
|
* int error_length = wasmer_last_error_length();
|
|
*
|
|
* if (error_length > 0) {
|
|
* char *error_message = malloc(error_length);
|
|
* wasmer_last_error_message(error_message, error_length);
|
|
* printf("Error message: `%s`\n", error_message);
|
|
* } else {
|
|
* printf("No error message\n");
|
|
* }
|
|
* ```
|
|
*/
|
|
int wasmer_last_error_message(char *buffer, int length);
|
|
|
|
/**
|
|
* Gets the start pointer to the bytes within a Memory
|
|
*/
|
|
uint8_t *wasmer_memory_data(const wasmer_memory_t *mem);
|
|
|
|
/**
|
|
* Gets the size in bytes of a Memory
|
|
*/
|
|
uint32_t wasmer_memory_data_length(wasmer_memory_t *mem);
|
|
|
|
/**
|
|
* Frees memory for the given Memory
|
|
*/
|
|
void wasmer_memory_destroy(wasmer_memory_t *memory);
|
|
|
|
/**
|
|
* Grows a Memory by the given number of pages.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_memory_grow(wasmer_memory_t *memory, uint32_t delta);
|
|
|
|
/**
|
|
* Returns the current length in pages of the given memory
|
|
*/
|
|
uint32_t wasmer_memory_length(const wasmer_memory_t *memory);
|
|
|
|
/**
|
|
* Creates a new Memory for the given descriptor and initializes the given
|
|
* pointer to pointer to a pointer to the new memory.
|
|
*
|
|
* The caller owns the object and should call `wasmer_memory_destroy` to free it.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_memory_new(wasmer_memory_t **memory, wasmer_limits_t limits);
|
|
|
|
/**
|
|
* Deserialize the given serialized module.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_module_deserialize(wasmer_module_t **module,
|
|
const wasmer_serialized_module_t *serialized_module);
|
|
|
|
/**
|
|
* Frees memory for the given Module
|
|
*/
|
|
void wasmer_module_destroy(wasmer_module_t *module);
|
|
|
|
/**
|
|
* Given:
|
|
* * A prepared `wasmer` import-object
|
|
* * A compiled wasmer module
|
|
*
|
|
* Instantiates a wasmer instance
|
|
*/
|
|
wasmer_result_t wasmer_module_import_instantiate(wasmer_instance_t **instance,
|
|
const wasmer_module_t *module,
|
|
const wasmer_import_object_t *import_object);
|
|
|
|
/**
|
|
* Creates a new Instance from the given module and imports.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_module_instantiate(const wasmer_module_t *module,
|
|
wasmer_instance_t **instance,
|
|
wasmer_import_t *imports,
|
|
int imports_len);
|
|
|
|
/**
|
|
* Serialize the given Module.
|
|
*
|
|
* The caller owns the object and should call `wasmer_serialized_module_destroy` to free it.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_module_serialize(wasmer_serialized_module_t **serialized_module,
|
|
const wasmer_module_t *module);
|
|
|
|
/**
|
|
* Get bytes of the serialized module.
|
|
*/
|
|
wasmer_byte_array wasmer_serialized_module_bytes(const wasmer_serialized_module_t *serialized_module);
|
|
|
|
/**
|
|
* Frees memory for the given serialized Module.
|
|
*/
|
|
void wasmer_serialized_module_destroy(wasmer_serialized_module_t *serialized_module);
|
|
|
|
/**
|
|
* Transform a sequence of bytes into a serialized module.
|
|
*
|
|
* The caller owns the object and should call `wasmer_serialized_module_destroy` to free it.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_serialized_module_from_bytes(wasmer_serialized_module_t **serialized_module,
|
|
const uint8_t *serialized_module_bytes,
|
|
uint32_t serialized_module_bytes_length);
|
|
|
|
/**
|
|
* Frees memory for the given Table
|
|
*/
|
|
void wasmer_table_destroy(wasmer_table_t *table);
|
|
|
|
/**
|
|
* Grows a Table by the given number of elements.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_table_grow(wasmer_table_t *table, uint32_t delta);
|
|
|
|
/**
|
|
* Returns the current length of the given Table
|
|
*/
|
|
uint32_t wasmer_table_length(wasmer_table_t *table);
|
|
|
|
/**
|
|
* Creates a new Table for the given descriptor and initializes the given
|
|
* pointer to pointer to a pointer to the new Table.
|
|
*
|
|
* The caller owns the object and should call `wasmer_table_destroy` to free it.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
|
*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
|
|
wasmer_result_t wasmer_table_new(wasmer_table_t **table, wasmer_limits_t limits);
|
|
|
|
#if (!defined(_WIN32) && defined(ARCH_X86_64))
|
|
/**
|
|
* Adds a callinfo trampoline to the builder.
|
|
*/
|
|
uintptr_t wasmer_trampoline_buffer_builder_add_callinfo_trampoline(wasmer_trampoline_buffer_builder_t *builder,
|
|
const wasmer_trampoline_callable_t *func,
|
|
const void *ctx,
|
|
uint32_t num_params);
|
|
#endif
|
|
|
|
#if (!defined(_WIN32) && defined(ARCH_X86_64))
|
|
/**
|
|
* Adds a context trampoline to the builder.
|
|
*/
|
|
uintptr_t wasmer_trampoline_buffer_builder_add_context_trampoline(wasmer_trampoline_buffer_builder_t *builder,
|
|
const wasmer_trampoline_callable_t *func,
|
|
const void *ctx);
|
|
#endif
|
|
|
|
#if (!defined(_WIN32) && defined(ARCH_X86_64))
|
|
/**
|
|
* Finalizes the trampoline builder into an executable buffer.
|
|
*/
|
|
wasmer_trampoline_buffer_t *wasmer_trampoline_buffer_builder_build(wasmer_trampoline_buffer_builder_t *builder);
|
|
#endif
|
|
|
|
#if (!defined(_WIN32) && defined(ARCH_X86_64))
|
|
/**
|
|
* Creates a new trampoline builder.
|
|
*/
|
|
wasmer_trampoline_buffer_builder_t *wasmer_trampoline_buffer_builder_new(void);
|
|
#endif
|
|
|
|
#if (!defined(_WIN32) && defined(ARCH_X86_64))
|
|
/**
|
|
* Destroys the trampoline buffer if not null.
|
|
*/
|
|
void wasmer_trampoline_buffer_destroy(wasmer_trampoline_buffer_t *buffer);
|
|
#endif
|
|
|
|
#if (!defined(_WIN32) && defined(ARCH_X86_64))
|
|
/**
|
|
* Returns the callable pointer for the trampoline with index `idx`.
|
|
*/
|
|
const wasmer_trampoline_callable_t *wasmer_trampoline_buffer_get_trampoline(const wasmer_trampoline_buffer_t *buffer,
|
|
uintptr_t idx);
|
|
#endif
|
|
|
|
#if (!defined(_WIN32) && defined(ARCH_X86_64))
|
|
/**
|
|
* Returns the context added by `add_context_trampoline`, from within the callee function.
|
|
*/
|
|
void *wasmer_trampoline_get_context(void);
|
|
#endif
|
|
|
|
/**
|
|
* Stop the execution of a host function, aka imported function. The
|
|
* function must be used _only_ inside a host function.
|
|
*
|
|
* The pointer to `wasmer_instance_context_t` is received by the host
|
|
* function as its first argument. Just passing it to `ctx` is fine.
|
|
*
|
|
* The error message must have a greater lifetime than the host
|
|
* function itself since the error is read outside the host function
|
|
* with `wasmer_last_error_message`.
|
|
*
|
|
* This function returns `wasmer_result_t::WASMER_ERROR` if `ctx` or
|
|
* `error_message` are null.
|
|
*
|
|
* This function never returns otherwise.
|
|
*/
|
|
wasmer_result_t wasmer_trap(const wasmer_instance_context_t *ctx, const char *error_message);
|
|
|
|
/**
|
|
* Validates a sequence of bytes hoping it represents a valid WebAssembly module.
|
|
*
|
|
* The function returns true if the bytes are valid, false otherwise.
|
|
*
|
|
* Example:
|
|
*
|
|
* ```c
|
|
* bool result = wasmer_validate(bytes, bytes_length);
|
|
*
|
|
* if (false == result) {
|
|
* // Do something…
|
|
* }
|
|
* ```
|
|
*/
|
|
bool wasmer_validate(const uint8_t *wasm_bytes, uint32_t wasm_bytes_len);
|
|
|
|
#if defined(WASMER_WASI_ENABLED)
|
|
/**
|
|
* Convenience function that creates a WASI import object with no arguments,
|
|
* environment variables, preopened files, or mapped directories.
|
|
*
|
|
* This function is the same as calling [`wasmer_wasi_generate_import_object`] with all
|
|
* empty values.
|
|
*/
|
|
wasmer_import_object_t *wasmer_wasi_generate_default_import_object(void);
|
|
#endif
|
|
|
|
#if defined(WASMER_WASI_ENABLED)
|
|
/**
|
|
* Creates a WASI import object.
|
|
*
|
|
* This function treats null pointers as empty collections.
|
|
* For example, passing null for a string in `args`, will lead to a zero
|
|
* length argument in that position.
|
|
*/
|
|
wasmer_import_object_t *wasmer_wasi_generate_import_object(const wasmer_byte_array *args,
|
|
unsigned int args_len,
|
|
const wasmer_byte_array *envs,
|
|
unsigned int envs_len,
|
|
const wasmer_byte_array *preopened_files,
|
|
unsigned int preopened_files_len,
|
|
const wasmer_wasi_map_dir_entry_t *mapped_dirs,
|
|
unsigned int mapped_dirs_len);
|
|
#endif
|
|
|
|
#if defined(WASMER_WASI_ENABLED)
|
|
/**
|
|
* Creates a WASI import object for a specific version.
|
|
*
|
|
* This function is similar to `wasmer_wasi_generate_import_object`
|
|
* except that the first argument describes the WASI version.
|
|
*
|
|
* The version is expected to be of kind `Version`.
|
|
*/
|
|
wasmer_import_object_t *wasmer_wasi_generate_import_object_for_version(unsigned char version,
|
|
const wasmer_byte_array *args,
|
|
unsigned int args_len,
|
|
const wasmer_byte_array *envs,
|
|
unsigned int envs_len,
|
|
const wasmer_byte_array *preopened_files,
|
|
unsigned int preopened_files_len,
|
|
const wasmer_wasi_map_dir_entry_t *mapped_dirs,
|
|
unsigned int mapped_dirs_len);
|
|
#endif
|
|
|
|
#if defined(WASMER_WASI_ENABLED)
|
|
/**
|
|
* Find the version of WASI used by the module.
|
|
*
|
|
* In case of error, the returned version is `Version::Unknown`.
|
|
*/
|
|
Version wasmer_wasi_get_version(const wasmer_module_t *module);
|
|
#endif
|
|
|
|
#endif /* WASMER_H */
|