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#include <stdlib.h>
#include "node_api.h"
#include "uv.h"
#include "../../js-native-api/common.h"
static napi_value RunInCallbackScope(napi_env env, napi_callback_info info) {
size_t argc;
napi_value args[3];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, NULL, NULL, NULL));
NODE_API_ASSERT(env, argc == 3 , "Wrong number of arguments");
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
napi_valuetype valuetype;
NODE_API_CALL(env, napi_typeof(env, args[0], &valuetype));
NODE_API_ASSERT(env, valuetype == napi_object,
"Wrong type of arguments. Expects an object as first argument.");
NODE_API_CALL(env, napi_typeof(env, args[1], &valuetype));
NODE_API_ASSERT(env, valuetype == napi_string,
"Wrong type of arguments. Expects a string as second argument.");
NODE_API_CALL(env, napi_typeof(env, args[2], &valuetype));
NODE_API_ASSERT(env, valuetype == napi_function,
"Wrong type of arguments. Expects a function as third argument.");
napi_async_context context;
NODE_API_CALL(env, napi_async_init(env, args[0], args[1], &context));
napi_callback_scope scope = NULL;
NODE_API_CALL(env,
napi_open_callback_scope(env, args[0], context, &scope));
// If the function has an exception pending after the call that is ok
// so we don't use NODE_API_CALL as we must close the callback scope
// regardless.
napi_value result = NULL;
napi_status function_call_result =
napi_call_function(env, args[0], args[2], 0, NULL, &result);
if (function_call_result != napi_ok) {
GET_AND_THROW_LAST_ERROR((env));
}
NODE_API_CALL(env, napi_close_callback_scope(env, scope));
NODE_API_CALL(env, napi_async_destroy(env, context));
return result;
}
static napi_env shared_env = NULL;
static napi_deferred deferred = NULL;
static void Callback(uv_work_t* req, int ignored) {
napi_env env = shared_env;
napi_handle_scope handle_scope = NULL;
NODE_API_CALL_RETURN_VOID(env, napi_open_handle_scope(env, &handle_scope));
napi_value resource_name;
NODE_API_CALL_RETURN_VOID(env, napi_create_string_utf8(
env, "test", NAPI_AUTO_LENGTH, &resource_name));
napi_async_context context;
NODE_API_CALL_RETURN_VOID(env,
napi_async_init(env, NULL, resource_name, &context));
napi_value resource_object;
NODE_API_CALL_RETURN_VOID(env, napi_create_object(env, &resource_object));
napi_value undefined_value;
NODE_API_CALL_RETURN_VOID(env, napi_get_undefined(env, &undefined_value));
napi_callback_scope scope = NULL;
NODE_API_CALL_RETURN_VOID(env,
napi_open_callback_scope(env, resource_object, context, &scope));
NODE_API_CALL_RETURN_VOID(env,
napi_resolve_deferred(env, deferred, undefined_value));
NODE_API_CALL_RETURN_VOID(env, napi_close_callback_scope(env, scope));
NODE_API_CALL_RETURN_VOID(env, napi_close_handle_scope(env, handle_scope));
NODE_API_CALL_RETURN_VOID(env, napi_async_destroy(env, context));
free(req);
}
static void NoopWork(uv_work_t* work) { (void) work; }
static napi_value TestResolveAsync(napi_env env, napi_callback_info info) {
napi_value promise = NULL;
if (deferred == NULL) {
shared_env = env;
NODE_API_CALL(env, napi_create_promise(env, &deferred, &promise));
uv_loop_t* loop = NULL;
NODE_API_CALL(env, napi_get_uv_event_loop(env, &loop));
uv_work_t* req = malloc(sizeof(*req));
uv_queue_work(loop,
req,
NoopWork,
Callback);
}
return promise;
}
static napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor descriptors[] = {
DECLARE_NODE_API_PROPERTY("runInCallbackScope", RunInCallbackScope),
DECLARE_NODE_API_PROPERTY("testResolveAsync", TestResolveAsync)
};
NODE_API_CALL(env, napi_define_properties(
env, exports, sizeof(descriptors) / sizeof(*descriptors), descriptors));
return exports;
}
NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)
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