mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-13 22:25:40 +00:00
828 lines
25 KiB
C
828 lines
25 KiB
C
#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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/**
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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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WASM_FUNCTION = 0,
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WASM_GLOBAL = 1,
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WASM_MEMORY = 2,
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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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typedef enum {
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WASMER_OK = 1,
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WASMER_ERROR = 2,
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} wasmer_result_t;
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enum wasmer_value_tag {
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WASM_I32,
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WASM_I64,
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WASM_F32,
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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 `NamedExportDescriptor`.
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*/
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typedef struct {
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} wasmer_export_descriptor_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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/**
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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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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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typedef struct {
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wasmer_value_tag tag;
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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 `NamedExports`.
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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_import_object_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_instance_t;
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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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typedef struct {
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} wasmer_trampoline_buffer_builder_t;
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typedef struct {
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} wasmer_trampoline_callable_t;
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typedef struct {
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} wasmer_trampoline_buffer_t;
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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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/**
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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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/**
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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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*/
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wasmer_byte_array wasmer_export_name(wasmer_export_t *export_);
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/**
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* Gets export func from export
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*/
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const wasmer_export_func_t *wasmer_export_to_func(const wasmer_export_t *export_);
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/**
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* Gets a memory pointer from an export 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_to_memory(const wasmer_export_t *export_, wasmer_memory_t **memory);
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/**
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* Frees the memory for the given exports
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*/
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void wasmer_exports_destroy(wasmer_exports_t *exports);
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/**
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* Gets wasmer_export by index
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*/
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wasmer_export_t *wasmer_exports_get(wasmer_exports_t *exports, int idx);
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/**
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* Gets the length of the exports
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*/
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int wasmer_exports_len(wasmer_exports_t *exports);
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/**
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* Frees memory for the given Global
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*/
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void wasmer_global_destroy(wasmer_global_t *global);
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/**
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* Gets the value stored by the given Global
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*/
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wasmer_value_t wasmer_global_get(wasmer_global_t *global);
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/**
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* Returns a descriptor (type, mutability) of the given Global
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*/
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wasmer_global_descriptor_t wasmer_global_get_descriptor(wasmer_global_t *global);
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/**
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* Creates a new Global and returns a pointer to it.
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* The caller owns the object and should call `wasmer_global_destroy` to free it.
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*/
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wasmer_global_t *wasmer_global_new(wasmer_value_t value, bool mutable_);
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/**
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* Sets the value stored by the given Global
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*/
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void wasmer_global_set(wasmer_global_t *global, wasmer_value_t value);
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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_import_descriptor_kind(wasmer_import_descriptor_t *export_);
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/**
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* Gets module name for the import descriptor
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*/
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wasmer_byte_array wasmer_import_descriptor_module_name(wasmer_import_descriptor_t *import_descriptor);
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/**
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* Gets name for the import descriptor
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*/
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wasmer_byte_array wasmer_import_descriptor_name(wasmer_import_descriptor_t *import_descriptor);
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/**
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* Gets import descriptors for the given module
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*
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* The caller owns the object and should call `wasmer_import_descriptors_destroy` to free it.
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*/
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void wasmer_import_descriptors(const wasmer_module_t *module,
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wasmer_import_descriptors_t **import_descriptors);
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/**
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* Frees the memory for the given import descriptors
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*/
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void wasmer_import_descriptors_destroy(wasmer_import_descriptors_t *import_descriptors);
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/**
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* Gets import descriptor by index
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*/
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wasmer_import_descriptor_t *wasmer_import_descriptors_get(wasmer_import_descriptors_t *import_descriptors,
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unsigned int idx);
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/**
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* Gets the length of the import descriptors
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*/
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unsigned int wasmer_import_descriptors_len(wasmer_import_descriptors_t *exports);
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/**
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* Frees memory for the given Func
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*/
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void wasmer_import_func_destroy(wasmer_import_func_t *func);
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/**
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* Creates new func
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*
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* The caller owns the object and should call `wasmer_import_func_destroy` to free it.
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*/
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wasmer_import_func_t *wasmer_import_func_new(void (*func)(void *data),
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const wasmer_value_tag *params,
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unsigned int params_len,
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const wasmer_value_tag *returns,
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unsigned int returns_len);
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/**
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* Sets the params buffer to the parameter types of the given wasmer_import_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_import_func_params(const wasmer_import_func_t *func,
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wasmer_value_tag *params,
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unsigned int params_len);
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/**
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* Sets the result parameter to the arity of the params of the wasmer_import_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_import_func_params_arity(const wasmer_import_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_import_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_import_func_returns(const wasmer_import_func_t *func,
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wasmer_value_tag *returns,
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unsigned int returns_len);
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/**
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* Sets the result parameter to the arity of the returns of the wasmer_import_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_import_func_returns_arity(const wasmer_import_func_t *func,
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uint32_t *result);
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/**
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* Frees memory of the given ImportObject
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*/
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void wasmer_import_object_destroy(wasmer_import_object_t *import_object);
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/**
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* Extends an existing import object with new imports
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*/
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wasmer_result_t wasmer_import_object_extend(wasmer_import_object_t *import_object,
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const wasmer_import_t *imports,
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unsigned int imports_len);
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/**
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* Call `wasmer_import_object_imports_destroy` to free the memory allocated by this function
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*/
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int32_t wasmer_import_object_get_functions(const wasmer_import_object_t *import_object,
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wasmer_import_t *imports,
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uint32_t imports_len);
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/**
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* Gets an entry from an ImportObject at the name and namespace.
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* Stores an immutable reference to `name` and `namespace` in `import`.
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*
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* The caller owns all data involved.
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* `import_export_value` will be written to based on `tag`, `import_export_value` must be
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* initialized to point to the type specified by `tag`. Failure to do so may result
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* in data corruption or undefined behavior.
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*/
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wasmer_result_t wasmer_import_object_get_import(const wasmer_import_object_t *import_object,
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wasmer_byte_array namespace_,
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wasmer_byte_array name,
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wasmer_import_t *import,
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wasmer_import_export_value *import_export_value,
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uint32_t tag);
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/**
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* Frees the memory acquired in `wasmer_import_object_get_functions`
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*/
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void wasmer_import_object_imports_destroy(wasmer_import_t *imports, uint32_t imports_len);
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/**
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* Creates a new empty import object.
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* See also `wasmer_import_object_append`
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*/
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wasmer_import_object_t *wasmer_import_object_new(void);
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/**
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* Calls an instances exported function by `name` 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_instance_call(wasmer_instance_t *instance,
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const char *name,
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const wasmer_value_t *params,
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uint32_t params_len,
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wasmer_value_t *results,
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uint32_t results_len);
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/**
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* Gets the `data` field within the context.
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*/
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void *wasmer_instance_context_data_get(const wasmer_instance_context_t *ctx);
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/**
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* Sets the `data` field of the instance context. This context will be
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* passed to all imported function for instance.
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*/
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void wasmer_instance_context_data_set(wasmer_instance_t *instance, void *data_ptr);
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/**
|
|
* Extracts the instance's context and returns it.
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|
*/
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const wasmer_instance_context_t *wasmer_instance_context_get(wasmer_instance_t *instance);
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/**
|
|
* Gets the memory within the context at the index `memory_idx`.
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* The index is always 0 until multiple memories are supported.
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|
*/
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const wasmer_memory_t *wasmer_instance_context_memory(const wasmer_instance_context_t *ctx,
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|
uint32_t _memory_idx);
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/**
|
|
* Frees memory for the given Instance
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|
*/
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void wasmer_instance_destroy(wasmer_instance_t *instance);
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/**
|
|
* Gets Exports for the given instance
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*
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* The caller owns the object and should call `wasmer_exports_destroy` to free it.
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*/
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void wasmer_instance_exports(wasmer_instance_t *instance, wasmer_exports_t **exports);
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/**
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|
* Creates a new Instance from the given wasm bytes and imports.
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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_instantiate(wasmer_instance_t **instance,
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uint8_t *wasm_bytes,
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uint32_t wasm_bytes_len,
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wasmer_import_t *imports,
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int imports_len);
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/**
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|
* Gets the length in bytes of the last error.
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* This can be used to dynamically allocate a buffer with the correct number of
|
|
* bytes needed to store a message.
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*
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* # Example
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*
|
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* ```c
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* int error_len = wasmer_last_error_length();
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* char *error_str = malloc(error_len);
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* ```
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*/
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int wasmer_last_error_length(void);
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/**
|
|
* Stores the last error message into the provided buffer up to the given `length`.
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* The `length` parameter must be large enough to store the last error message.
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*
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|
* Returns the length of the string in bytes.
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|
* Returns `-1` if an error occurs.
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*
|
|
* # Example
|
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*
|
|
* ```c
|
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* int error_len = wasmer_last_error_length();
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* char *error_str = malloc(error_len);
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* wasmer_last_error_message(error_str, error_len);
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* printf("Error str: `%s`\n", error_str);
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* ```
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*/
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int wasmer_last_error_message(char *buffer, int length);
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/**
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* Gets the start pointer to the bytes within a Memory
|
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*/
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uint8_t *wasmer_memory_data(const wasmer_memory_t *mem);
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/**
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* Gets the size in bytes of a Memory
|
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*/
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uint32_t wasmer_memory_data_length(wasmer_memory_t *mem);
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/**
|
|
* Frees memory for the given Memory
|
|
*/
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void wasmer_memory_destroy(wasmer_memory_t *memory);
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/**
|
|
* Grows a Memory by the given number of pages.
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*
|
|
* Returns `wasmer_result_t::WASMER_OK` upon success.
|
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*
|
|
* Returns `wasmer_result_t::WASMER_ERROR` upon failure. Use `wasmer_last_error_length`
|
|
* and `wasmer_last_error_message` to get an error message.
|
|
*/
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wasmer_result_t wasmer_memory_grow(wasmer_memory_t *memory, uint32_t delta);
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|
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/**
|
|
* Returns the current length in pages of the given memory
|
|
*/
|
|
uint32_t wasmer_memory_length(const wasmer_memory_t *memory);
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|
|
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/**
|
|
* 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);
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|
|
|
/**
|
|
* 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);
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|
|
|
/**
|
|
* Frees memory for the given Module
|
|
*/
|
|
void wasmer_module_destroy(wasmer_module_t *module);
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|
|
|
/**
|
|
* 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);
|
|
|
|
/**
|
|
* 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);
|
|
|
|
/**
|
|
* 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);
|
|
|
|
/**
|
|
* Finalizes the trampoline builder into an executable buffer.
|
|
*/
|
|
wasmer_trampoline_buffer_t *wasmer_trampoline_buffer_builder_build(wasmer_trampoline_buffer_builder_t *builder);
|
|
|
|
/**
|
|
* Creates a new trampoline builder.
|
|
*/
|
|
wasmer_trampoline_buffer_builder_t *wasmer_trampoline_buffer_builder_new(void);
|
|
|
|
/**
|
|
* Destroys the trampoline buffer if not null.
|
|
*/
|
|
void wasmer_trampoline_buffer_destroy(wasmer_trampoline_buffer_t *buffer);
|
|
|
|
/**
|
|
* 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);
|
|
|
|
/**
|
|
* Returns the context added by `add_context_trampoline`, from within the callee function.
|
|
*/
|
|
void *wasmer_trampoline_get_context(void);
|
|
|
|
/**
|
|
* Returns true for valid wasm bytes and false for invalid bytes
|
|
*/
|
|
bool wasmer_validate(const uint8_t *wasm_bytes, uint32_t wasm_bytes_len);
|
|
|
|
/**
|
|
* 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);
|
|
|
|
/**
|
|
* 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 /* WASMER_H */
|