node/src/node_api.h at buffer-with-resizable-arraybuffer · jasnell/node · GitHub

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#ifndef SRC_NODE_API_H_

#define SRC_NODE_API_H_

#if defined(BUILDING_NODE_EXTENSION) && !defined(NAPI_EXTERN)

#ifdef _WIN32

// Building native addon against node

#define NAPI_EXTERN __declspec(dllimport)

#elif defined(__wasm__)

#define NAPI_EXTERN __attribute__((__import_module__("napi")))

#endif

#include "js_native_api.h"

#include "node_api_types.h"

struct uv_loop_s; // Forward declaration.

#ifdef _WIN32

#define NAPI_MODULE_EXPORT __declspec(dllexport)

#else

#ifdef __EMSCRIPTEN__

#define NAPI_MODULE_EXPORT \

__attribute__((visibility("default"))) __attribute__((used))

#else

#define NAPI_MODULE_EXPORT __attribute__((visibility("default")))

#endif

#if defined(__GNUC__)

#define NAPI_NO_RETURN __attribute__((noreturn))

#elif defined(_WIN32)

#define NAPI_NO_RETURN __declspec(noreturn)

#else

#define NAPI_NO_RETURN

#endif

typedef napi_value(NAPI_CDECL* napi_addon_register_func)(napi_env env,

napi_value exports);

typedef int32_t(NAPI_CDECL* node_api_addon_get_api_version_func)(void);

// Used by deprecated registration method napi_module_register.

typedef struct napi_module {

int nm_version;

unsigned int nm_flags;

const char* nm_filename;

napi_addon_register_func nm_register_func;

const char* nm_modname;

void* nm_priv;

void* reserved[4];

} napi_module;

#define NAPI_MODULE_VERSION 1

#define NAPI_MODULE_INITIALIZER_X(base, version) \

NAPI_MODULE_INITIALIZER_X_HELPER(base, version)

#define NAPI_MODULE_INITIALIZER_X_HELPER(base, version) base##version

#ifdef __wasm__

#define NAPI_MODULE_INITIALIZER_BASE napi_register_wasm_v

#else

#define NAPI_MODULE_INITIALIZER_BASE napi_register_module_v

#endif

#define NODE_API_MODULE_GET_API_VERSION_BASE node_api_module_get_api_version_v

#define NAPI_MODULE_INITIALIZER \

NAPI_MODULE_INITIALIZER_X(NAPI_MODULE_INITIALIZER_BASE, NAPI_MODULE_VERSION)

#define NODE_API_MODULE_GET_API_VERSION \

NAPI_MODULE_INITIALIZER_X(NODE_API_MODULE_GET_API_VERSION_BASE, \

NAPI_MODULE_VERSION)

#define NAPI_MODULE_INIT() \

EXTERN_C_START \

NAPI_MODULE_EXPORT int32_t NODE_API_MODULE_GET_API_VERSION(void) { \

return NAPI_VERSION; \

} \

NAPI_MODULE_EXPORT napi_value NAPI_MODULE_INITIALIZER(napi_env env, \

napi_value exports); \

EXTERN_C_END \

napi_value NAPI_MODULE_INITIALIZER(napi_env env, napi_value exports)

#define NAPI_MODULE(modname, regfunc) \

NAPI_MODULE_INIT() { return regfunc(env, exports); }

// Deprecated. Use NAPI_MODULE.

#define NAPI_MODULE_X(modname, regfunc, priv, flags) \

NAPI_MODULE(modname, regfunc)

EXTERN_C_START

// Deprecated. Replaced by symbol-based registration defined by NAPI_MODULE

// and NAPI_MODULE_INIT macros.

#if defined(__cplusplus) && __cplusplus >= 201402L

[[deprecated]]

#endif

NAPI_EXTERN void NAPI_CDECL

napi_module_register(napi_module* mod);

NAPI_EXTERN NAPI_NO_RETURN void NAPI_CDECL

napi_fatal_error(const char* location,

size_t location_len,

const char* message,

size_t message_len);

// Methods for custom handling of async operations

NAPI_EXTERN napi_status NAPI_CDECL

napi_async_init(napi_env env,

napi_value async_resource,

napi_value async_resource_name,

napi_async_context* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_async_destroy(napi_env env, napi_async_context async_context);

NAPI_EXTERN napi_status NAPI_CDECL

napi_make_callback(napi_env env,

napi_async_context async_context,

napi_value recv,

napi_value func,

size_t argc,

const napi_value* argv,

napi_value* result);

// Methods to provide node::Buffer functionality with napi types

NAPI_EXTERN napi_status NAPI_CDECL napi_create_buffer(napi_env env,

size_t length,

void** data,

napi_value* result);

#ifndef NODE_API_NO_EXTERNAL_BUFFERS_ALLOWED

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_external_buffer(napi_env env,

size_t length,

void* data,

node_api_basic_finalize finalize_cb,

void* finalize_hint,

napi_value* result);

#endif // NODE_API_NO_EXTERNAL_BUFFERS_ALLOWED

#ifdef NAPI_EXPERIMENTAL

#define NODE_API_EXPERIMENTAL_HAS_CREATE_BUFFER_FROM_ARRAYBUFFER

NAPI_EXTERN napi_status NAPI_CDECL

node_api_create_buffer_from_arraybuffer(napi_env env,

napi_value arraybuffer,

size_t byte_offset,

size_t byte_length,

napi_value* result);

#endif // NAPI_EXPERIMENTAL

NAPI_EXTERN napi_status NAPI_CDECL napi_create_buffer_copy(napi_env env,

size_t length,

const void* data,

void** result_data,

napi_value* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_is_buffer(napi_env env,

napi_value value,

bool* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_buffer_info(napi_env env,

napi_value value,

void** data,

size_t* length);

// Methods to manage simple async operations

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_async_work(napi_env env,

napi_value async_resource,

napi_value async_resource_name,

napi_async_execute_callback execute,

napi_async_complete_callback complete,

void* data,

napi_async_work* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_delete_async_work(napi_env env,

napi_async_work work);

NAPI_EXTERN napi_status NAPI_CDECL napi_queue_async_work(node_api_basic_env env,

napi_async_work work);

NAPI_EXTERN napi_status NAPI_CDECL

napi_cancel_async_work(node_api_basic_env env, napi_async_work work);

// version management

NAPI_EXTERN napi_status NAPI_CDECL napi_get_node_version(

node_api_basic_env env, const napi_node_version** version);

#if NAPI_VERSION >= 2

// Return the current libuv event loop for a given environment

NAPI_EXTERN napi_status NAPI_CDECL

napi_get_uv_event_loop(node_api_basic_env env, struct uv_loop_s** loop);

#endif // NAPI_VERSION >= 2

#if NAPI_VERSION >= 3

NAPI_EXTERN napi_status NAPI_CDECL napi_fatal_exception(napi_env env,

napi_value err);

NAPI_EXTERN napi_status NAPI_CDECL napi_add_env_cleanup_hook(

node_api_basic_env env, napi_cleanup_hook fun, void* arg);

NAPI_EXTERN napi_status NAPI_CDECL napi_remove_env_cleanup_hook(

node_api_basic_env env, napi_cleanup_hook fun, void* arg);

NAPI_EXTERN napi_status NAPI_CDECL

napi_open_callback_scope(napi_env env,

napi_value resource_object,

napi_async_context context,

napi_callback_scope* result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_close_callback_scope(napi_env env, napi_callback_scope scope);

#endif // NAPI_VERSION >= 3

#if NAPI_VERSION >= 4

// Calling into JS from other threads

NAPI_EXTERN napi_status NAPI_CDECL

napi_create_threadsafe_function(napi_env env,

napi_value func,

napi_value async_resource,

napi_value async_resource_name,

size_t max_queue_size,

size_t initial_thread_count,

void* thread_finalize_data,

napi_finalize thread_finalize_cb,

void* context,

napi_threadsafe_function_call_js call_js_cb,

napi_threadsafe_function* result);

NAPI_EXTERN napi_status NAPI_CDECL napi_get_threadsafe_function_context(

napi_threadsafe_function func, void** result);

NAPI_EXTERN napi_status NAPI_CDECL

napi_call_threadsafe_function(napi_threadsafe_function func,

void* data,

napi_threadsafe_function_call_mode is_blocking);

NAPI_EXTERN napi_status NAPI_CDECL

napi_acquire_threadsafe_function(napi_threadsafe_function func);

NAPI_EXTERN napi_status NAPI_CDECL napi_release_threadsafe_function(

napi_threadsafe_function func, napi_threadsafe_function_release_mode mode);

NAPI_EXTERN napi_status NAPI_CDECL napi_unref_threadsafe_function(

node_api_basic_env env, napi_threadsafe_function func);

NAPI_EXTERN napi_status NAPI_CDECL napi_ref_threadsafe_function(

node_api_basic_env env, napi_threadsafe_function func);

#endif // NAPI_VERSION >= 4

#if NAPI_VERSION >= 8

NAPI_EXTERN napi_status NAPI_CDECL

napi_add_async_cleanup_hook(node_api_basic_env env,

napi_async_cleanup_hook hook,

void* arg,

napi_async_cleanup_hook_handle* remove_handle);

NAPI_EXTERN napi_status NAPI_CDECL

napi_remove_async_cleanup_hook(napi_async_cleanup_hook_handle remove_handle);

#endif // NAPI_VERSION >= 8

#if NAPI_VERSION >= 9

NAPI_EXTERN napi_status NAPI_CDECL

node_api_get_module_file_name(node_api_basic_env env, const char** result);

#endif // NAPI_VERSION >= 9

EXTERN_C_END

#endif // SRC_NODE_API_H_

node/src/node_api.h at buffer-with-resizable-arraybuffer · jasnell/node · GitHub

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