2019-02-10 00:07:05 +00:00
|
|
|
#ifndef WASMER_H
|
|
|
|
#define WASMER_H
|
|
|
|
|
2019-02-02 04:10:36 +00:00
|
|
|
#include <stdarg.h>
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <stdlib.h>
|
2019-02-01 05:51:34 +00:00
|
|
|
|
2019-02-14 02:02:11 +00:00
|
|
|
enum wasmer_import_export_kind {
|
|
|
|
WASM_FUNCTION,
|
|
|
|
WASM_GLOBAL,
|
|
|
|
WASM_MEMORY,
|
|
|
|
WASM_TABLE,
|
|
|
|
};
|
|
|
|
typedef uint32_t wasmer_import_export_kind;
|
|
|
|
|
2019-02-02 06:26:10 +00:00
|
|
|
typedef enum {
|
2019-02-12 01:07:28 +00:00
|
|
|
WASMER_OK = 1,
|
|
|
|
WASMER_ERROR = 2,
|
|
|
|
} wasmer_result_t;
|
2019-02-09 19:37:07 +00:00
|
|
|
|
2019-02-02 20:53:07 +00:00
|
|
|
enum wasmer_value_tag {
|
|
|
|
WASM_I32,
|
|
|
|
WASM_I64,
|
|
|
|
WASM_F32,
|
|
|
|
WASM_F64,
|
|
|
|
};
|
|
|
|
typedef uint32_t wasmer_value_tag;
|
|
|
|
|
2019-02-02 04:10:36 +00:00
|
|
|
typedef struct wasmer_import_object_t wasmer_import_object_t;
|
2019-02-01 05:51:34 +00:00
|
|
|
|
2019-02-02 23:43:59 +00:00
|
|
|
typedef struct wasmer_instance_context_t wasmer_instance_context_t;
|
|
|
|
|
2019-02-02 04:10:36 +00:00
|
|
|
typedef struct wasmer_instance_t wasmer_instance_t;
|
2019-02-01 05:51:34 +00:00
|
|
|
|
2019-02-16 01:47:00 +00:00
|
|
|
typedef struct wasmer_module_t wasmer_module_t;
|
|
|
|
|
2019-02-09 23:39:15 +00:00
|
|
|
typedef struct {
|
|
|
|
|
2019-02-14 02:02:11 +00:00
|
|
|
} wasmer_export_t;
|
|
|
|
|
|
|
|
typedef struct {
|
2019-02-14 06:00:39 +00:00
|
|
|
const uint8_t *bytes;
|
|
|
|
uint32_t bytes_len;
|
|
|
|
} wasmer_byte_array;
|
2019-02-14 02:02:11 +00:00
|
|
|
|
2019-02-14 06:00:39 +00:00
|
|
|
typedef struct {
|
|
|
|
|
|
|
|
} wasmer_func_t;
|
2019-02-14 02:02:11 +00:00
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
|
2019-02-14 06:00:39 +00:00
|
|
|
} wasmer_exports_t;
|
2019-02-09 23:39:15 +00:00
|
|
|
|
2019-02-02 20:53:07 +00:00
|
|
|
typedef union {
|
|
|
|
int32_t I32;
|
|
|
|
int64_t I64;
|
|
|
|
float F32;
|
|
|
|
double F64;
|
|
|
|
} wasmer_value;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
wasmer_value_tag tag;
|
|
|
|
wasmer_value value;
|
|
|
|
} wasmer_value_t;
|
|
|
|
|
2019-02-14 06:00:39 +00:00
|
|
|
typedef struct {
|
|
|
|
|
|
|
|
} wasmer_global_t;
|
|
|
|
|
2019-02-09 23:39:15 +00:00
|
|
|
typedef struct {
|
|
|
|
bool mutable_;
|
|
|
|
wasmer_value_tag kind;
|
|
|
|
} wasmer_global_descriptor_t;
|
|
|
|
|
2019-02-05 03:46:47 +00:00
|
|
|
typedef struct {
|
|
|
|
|
|
|
|
} wasmer_memory_t;
|
|
|
|
|
|
|
|
typedef struct {
|
2019-02-15 15:40:28 +00:00
|
|
|
|
|
|
|
} wasmer_table_t;
|
|
|
|
|
|
|
|
typedef union {
|
|
|
|
const wasmer_func_t *func;
|
|
|
|
const wasmer_table_t *table;
|
|
|
|
const wasmer_memory_t *memory;
|
|
|
|
const wasmer_global_t *global;
|
|
|
|
} wasmer_import_export_value;
|
2019-02-05 03:46:47 +00:00
|
|
|
|
2019-02-09 19:37:07 +00:00
|
|
|
typedef struct {
|
2019-02-15 15:40:28 +00:00
|
|
|
wasmer_byte_array module_name;
|
|
|
|
wasmer_byte_array import_name;
|
|
|
|
wasmer_import_export_kind tag;
|
|
|
|
wasmer_import_export_value value;
|
|
|
|
} wasmer_import_t;
|
2019-02-09 19:37:07 +00:00
|
|
|
|
2019-02-15 15:40:28 +00:00
|
|
|
typedef struct {
|
|
|
|
uint32_t min;
|
|
|
|
uint32_t max;
|
|
|
|
} wasmer_limits_t;
|
2019-02-09 19:37:07 +00:00
|
|
|
|
2019-02-16 01:47:00 +00:00
|
|
|
/**
|
|
|
|
* Creates a new Module from the given wasm bytes.
|
|
|
|
* 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_compile(wasmer_module_t **module,
|
|
|
|
uint8_t *wasm_bytes,
|
|
|
|
uint32_t wasm_bytes_len);
|
|
|
|
|
2019-02-14 02:02:11 +00:00
|
|
|
/**
|
|
|
|
* Gets wasmer_export kind
|
|
|
|
*/
|
|
|
|
wasmer_import_export_kind wasmer_export_kind(wasmer_export_t *export_);
|
|
|
|
|
2019-02-14 06:00:39 +00:00
|
|
|
/**
|
2019-02-15 15:40:28 +00:00
|
|
|
* Gets name from wasmer_export
|
2019-02-14 06:00:39 +00:00
|
|
|
*/
|
|
|
|
wasmer_byte_array wasmer_export_name(wasmer_export_t *export_);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Gets func from wasm_export
|
|
|
|
*/
|
|
|
|
const wasmer_func_t *wasmer_export_to_func(wasmer_export_t *export_);
|
|
|
|
|
2019-02-14 02:02:11 +00:00
|
|
|
/**
|
|
|
|
* Frees the memory for the given 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);
|
|
|
|
|
2019-02-14 06:00:39 +00:00
|
|
|
/**
|
|
|
|
* Calls a `func` with the provided parameters.
|
|
|
|
* Results are set using the provided `results` 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_func_call(wasmer_func_t *func,
|
|
|
|
const wasmer_value_t *params,
|
|
|
|
int params_len,
|
|
|
|
wasmer_value_t *results,
|
|
|
|
int results_len);
|
|
|
|
|
2019-02-15 15:40:28 +00:00
|
|
|
/**
|
|
|
|
* Frees memory for the given Func
|
|
|
|
*/
|
|
|
|
void wasmer_func_destroy(wasmer_func_t *func);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Creates new func
|
|
|
|
* The caller owns the object and should call `wasmer_func_destroy` to free it.
|
|
|
|
*/
|
|
|
|
const wasmer_func_t *wasmer_func_new(void (*func)(void *data),
|
|
|
|
const wasmer_value_tag *params,
|
|
|
|
int params_len,
|
|
|
|
const wasmer_value_tag *returns,
|
|
|
|
int returns_len);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Frees memory for the given Global
|
|
|
|
*/
|
2019-02-09 23:39:15 +00:00
|
|
|
void wasmer_global_destroy(wasmer_global_t *global);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Gets the value stored by the given Global
|
|
|
|
*/
|
2019-02-09 23:39:15 +00:00
|
|
|
wasmer_value_t wasmer_global_get(wasmer_global_t *global);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Returns a descriptor (type, mutability) of the given Global
|
|
|
|
*/
|
2019-02-09 23:39:15 +00:00
|
|
|
wasmer_global_descriptor_t wasmer_global_get_descriptor(wasmer_global_t *global);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Creates a new Global and returns a pointer to it.
|
|
|
|
* The caller owns the object and should call `wasmer_global_destroy` to free it.
|
|
|
|
*/
|
2019-02-09 23:39:15 +00:00
|
|
|
wasmer_global_t *wasmer_global_new(wasmer_value_t value, bool mutable_);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Sets the value stored by the given Global
|
|
|
|
*/
|
2019-02-09 23:39:15 +00:00
|
|
|
void wasmer_global_set(wasmer_global_t *global, wasmer_value_t value);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Frees memory for the given ImportObject
|
|
|
|
*/
|
2019-02-01 05:51:34 +00:00
|
|
|
void wasmer_import_object_destroy(wasmer_import_object_t *import_object);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Creates a new ImportObject and returns a pointer to it.
|
|
|
|
* The caller owns the object and should call `wasmer_import_object_destroy` to free it.
|
|
|
|
*/
|
2019-02-02 04:10:36 +00:00
|
|
|
wasmer_import_object_t *wasmer_import_object_new(void);
|
2019-02-01 05:51:34 +00:00
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Registers a `func` with provided `name` and `namespace` into the ImportObject.
|
|
|
|
* 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.
|
|
|
|
*/
|
2019-02-02 23:43:59 +00:00
|
|
|
void wasmer_imports_set_import_func(wasmer_import_object_t *import_object,
|
|
|
|
const char *namespace_,
|
|
|
|
const char *name,
|
2019-02-03 01:10:08 +00:00
|
|
|
void (*func)(void *data),
|
|
|
|
const wasmer_value_tag *params,
|
|
|
|
int params_len,
|
|
|
|
const wasmer_value_tag *returns,
|
|
|
|
int returns_len);
|
2019-02-02 23:43:59 +00:00
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Calls an instances exported function by `name` with the provided parameters.
|
|
|
|
* Results are set using the provided `results` 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.
|
|
|
|
*/
|
2019-02-12 01:07:28 +00:00
|
|
|
wasmer_result_t wasmer_instance_call(wasmer_instance_t *instance,
|
|
|
|
const char *name,
|
|
|
|
const wasmer_value_t *params,
|
|
|
|
int params_len,
|
|
|
|
wasmer_value_t *results,
|
|
|
|
int results_len);
|
2019-02-02 06:26:10 +00:00
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Gets the memory within the context at the index `memory_idx`.
|
|
|
|
* The index is always 0 until multiple memories are supported.
|
|
|
|
*/
|
2019-02-10 20:24:36 +00:00
|
|
|
const wasmer_memory_t *wasmer_instance_context_memory(wasmer_instance_context_t *ctx,
|
|
|
|
uint32_t memory_idx);
|
2019-02-02 23:43:59 +00:00
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Frees memory for the given Instance
|
|
|
|
*/
|
2019-02-02 06:26:10 +00:00
|
|
|
void wasmer_instance_destroy(wasmer_instance_t *instance);
|
|
|
|
|
2019-02-14 02:02:11 +00:00
|
|
|
/**
|
|
|
|
* Gets Exports for the given instance
|
|
|
|
* The caller owns the object and should call `wasmer_exports_destroy` to free it.
|
|
|
|
*/
|
|
|
|
void wasmer_instance_exports(wasmer_instance_t *instance, wasmer_exports_t **exports);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Creates a new Instance from the given wasm bytes 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.
|
|
|
|
*/
|
2019-02-12 01:07:28 +00:00
|
|
|
wasmer_result_t wasmer_instantiate(wasmer_instance_t **instance,
|
|
|
|
uint8_t *wasm_bytes,
|
|
|
|
uint32_t wasm_bytes_len,
|
2019-02-15 15:40:28 +00:00
|
|
|
wasmer_import_t *imports,
|
|
|
|
int imports_len);
|
2019-02-05 03:46:47 +00:00
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Gets the length in bytes of the last error.
|
|
|
|
* This can be used to dynamically allocate a buffer with the correct number of
|
|
|
|
* bytes needed to store a message.
|
|
|
|
* # Example
|
|
|
|
* ```
|
|
|
|
* int error_len = wasmer_last_error_length();
|
|
|
|
* char *error_str = malloc(error_len);
|
|
|
|
* ```
|
|
|
|
*/
|
2019-02-10 23:57:23 +00:00
|
|
|
int wasmer_last_error_length(void);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Stores the last error message into the provided buffer up to the given `length`.
|
|
|
|
* The `length` parameter must be large enough to store the last error message.
|
|
|
|
* Returns the length of the string in bytes.
|
|
|
|
* Returns `-1` if an error occurs.
|
|
|
|
* # Example
|
|
|
|
* ```
|
|
|
|
* int error_len = wasmer_last_error_length();
|
|
|
|
* char *error_str = malloc(error_len);
|
|
|
|
* wasmer_last_error_message(error_str, error_len);
|
|
|
|
* printf("Error str: `%s`\n", error_str);
|
|
|
|
* ```
|
|
|
|
*/
|
2019-02-10 23:57:23 +00:00
|
|
|
int wasmer_last_error_message(char *buffer, int length);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Gets the start pointer to the bytes within a Memory
|
|
|
|
*/
|
2019-02-10 21:20:35 +00:00
|
|
|
uint8_t *wasmer_memory_data(wasmer_memory_t *mem);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Gets the size in bytes of a Memory
|
|
|
|
*/
|
2019-02-10 20:14:42 +00:00
|
|
|
uint32_t wasmer_memory_data_length(wasmer_memory_t *mem);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Frees memory for the given Memory
|
|
|
|
*/
|
2019-02-05 03:46:47 +00:00
|
|
|
void wasmer_memory_destroy(wasmer_memory_t *memory);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* 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.
|
|
|
|
*/
|
2019-02-12 01:07:28 +00:00
|
|
|
wasmer_result_t wasmer_memory_grow(wasmer_memory_t *memory, uint32_t delta);
|
2019-02-09 23:53:03 +00:00
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Returns the current length in pages of the given memory
|
|
|
|
*/
|
2019-02-05 03:46:47 +00:00
|
|
|
uint32_t wasmer_memory_length(wasmer_memory_t *memory);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* 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.
|
|
|
|
*/
|
2019-02-12 01:07:28 +00:00
|
|
|
wasmer_result_t wasmer_memory_new(wasmer_memory_t **memory, wasmer_limits_t limits);
|
2019-02-05 06:01:01 +00:00
|
|
|
|
2019-02-16 01:47:00 +00:00
|
|
|
/**
|
|
|
|
* Frees memory for the given Module
|
|
|
|
*/
|
|
|
|
void wasmer_module_destroy(wasmer_module_t *module);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Frees memory for the given Table
|
|
|
|
*/
|
2019-02-09 19:37:07 +00:00
|
|
|
void wasmer_table_destroy(wasmer_table_t *table);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* 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.
|
|
|
|
*/
|
2019-02-12 01:07:28 +00:00
|
|
|
wasmer_result_t wasmer_table_grow(wasmer_table_t *table, uint32_t delta);
|
2019-02-09 19:58:50 +00:00
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Returns the current length of the given Table
|
|
|
|
*/
|
2019-02-09 19:37:07 +00:00
|
|
|
uint32_t wasmer_table_length(wasmer_table_t *table);
|
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* 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.
|
|
|
|
*/
|
2019-02-12 01:07:28 +00:00
|
|
|
wasmer_result_t wasmer_table_new(wasmer_table_t **table, wasmer_limits_t limits);
|
2019-02-09 19:37:07 +00:00
|
|
|
|
2019-02-12 05:14:32 +00:00
|
|
|
/**
|
|
|
|
* Returns true for valid wasm bytes and false for invalid bytes
|
|
|
|
*/
|
2019-02-05 06:01:01 +00:00
|
|
|
bool wasmer_validate(uint8_t *wasm_bytes, uint32_t wasm_bytes_len);
|
2019-02-10 00:07:05 +00:00
|
|
|
|
|
|
|
#endif /* WASMER_H */
|