async.h

Go to the documentation of this file.

 
#ifndef WASMTIME_ASYNC_H
#define WASMTIME_ASYNC_H
 
#include <wasm.h>
#include <wasmtime/conf.h>
#include <wasmtime/config.h>
#include <wasmtime/error.h>
#include <wasmtime/func.h>
#include <wasmtime/linker.h>
#include <wasmtime/store.h>
 
#ifdef WASMTIME_FEATURE_ASYNC
 
#ifdef __cplusplus
extern "C" {
#endif
 
WASMTIME_CONFIG_PROP(void, async_stack_size, uint64_t)
 
 
WASM_API_EXTERN wasmtime_error_t *
wasmtime_context_fuel_async_yield_interval(wasmtime_context_t *context,
                                           uint64_t interval);
 
WASM_API_EXTERN wasmtime_error_t *
wasmtime_context_epoch_deadline_async_yield_and_update(
    wasmtime_context_t *context, uint64_t delta);
 
typedef bool (*wasmtime_func_async_continuation_callback_t)(void *env);
 
typedef struct wasmtime_async_continuation_t {
  wasmtime_func_async_continuation_callback_t callback;
  void *env;
  void (*finalizer)(void *);
} wasmtime_async_continuation_t;
 
typedef void (*wasmtime_func_async_callback_t)(
    void *env, wasmtime_caller_t *caller, const wasmtime_val_t *args,
    size_t nargs, wasmtime_val_t *results, size_t nresults,
    wasm_trap_t **trap_ret, wasmtime_async_continuation_t *continuation_ret);
 
typedef struct wasmtime_call_future wasmtime_call_future_t;
 
WASM_API_EXTERN bool wasmtime_call_future_poll(wasmtime_call_future_t *future);
 
WASM_API_EXTERN void
wasmtime_call_future_delete(wasmtime_call_future_t *future);
 
WASM_API_EXTERN wasmtime_call_future_t *wasmtime_func_call_async(
    wasmtime_context_t *context, const wasmtime_func_t *func,
    const wasmtime_val_t *args, size_t nargs, wasmtime_val_t *results,
    size_t nresults, wasm_trap_t **trap_ret, wasmtime_error_t **error_ret);
 
WASM_API_EXTERN wasmtime_error_t *wasmtime_linker_define_async_func(
    wasmtime_linker_t *linker, const char *module, size_t module_len,
    const char *name, size_t name_len, const wasm_functype_t *ty,
    wasmtime_func_async_callback_t cb, void *data, void (*finalizer)(void *));
 
WASM_API_EXTERN wasmtime_call_future_t *wasmtime_linker_instantiate_async(
    const wasmtime_linker_t *linker, wasmtime_context_t *store,
    const wasmtime_module_t *module, wasmtime_instance_t *instance,
    wasm_trap_t **trap_ret, wasmtime_error_t **error_ret);
 
WASM_API_EXTERN wasmtime_call_future_t *wasmtime_instance_pre_instantiate_async(
    const wasmtime_instance_pre_t *instance_pre, wasmtime_context_t *store,
    wasmtime_instance_t *instance, wasm_trap_t **trap_ret,
    wasmtime_error_t **error_ret);
 
typedef uint8_t *(*wasmtime_stack_memory_get_callback_t)(void *env,
                                                         size_t *out_len);
 
typedef struct {
  void *env;
  wasmtime_stack_memory_get_callback_t get_stack_memory;
  void (*finalizer)(void *);
} wasmtime_stack_memory_t;
 
typedef wasmtime_error_t *(*wasmtime_new_stack_memory_callback_t)(
    void *env, size_t size, bool zeroed, wasmtime_stack_memory_t *stack_ret);
 
typedef struct {
  void *env;
  wasmtime_new_stack_memory_callback_t new_stack;
  void (*finalizer)(void *);
} wasmtime_stack_creator_t;
 
WASM_API_EXTERN void
wasmtime_config_host_stack_creator_set(wasm_config_t *,
                                       wasmtime_stack_creator_t *);
 
#ifdef __cplusplus
} // extern "C"
#endif
 
#endif // WASMTIME_FEATURE_ASYNC
 
#endif // WASMTIME_ASYNC_H