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307c67be17
napi_async_context should be an opaque type and not be used as same as node::async_context. PR-URL: https://github.com/nodejs/node/pull/32928 Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
#include "node_api.h"
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#include "uv.h"
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#include "../../js-native-api/common.h"
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namespace {
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napi_value RunInCallbackScope(napi_env env, napi_callback_info info) {
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size_t argc;
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napi_value args[3];
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NAPI_CALL(env, napi_get_cb_info(env, info, &argc, nullptr, nullptr, nullptr));
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NAPI_ASSERT(env, argc == 3 , "Wrong number of arguments");
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NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, nullptr, nullptr));
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napi_valuetype valuetype;
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NAPI_CALL(env, napi_typeof(env, args[0], &valuetype));
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NAPI_ASSERT(env, valuetype == napi_object,
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"Wrong type of arguments. Expects an object as first argument.");
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NAPI_CALL(env, napi_typeof(env, args[1], &valuetype));
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NAPI_ASSERT(env, valuetype == napi_string,
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"Wrong type of arguments. Expects a string as second argument.");
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NAPI_CALL(env, napi_typeof(env, args[2], &valuetype));
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NAPI_ASSERT(env, valuetype == napi_function,
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"Wrong type of arguments. Expects a function as third argument.");
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napi_async_context context;
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NAPI_CALL(env, napi_async_init(env, args[0], args[1], &context));
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napi_callback_scope scope = nullptr;
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NAPI_CALL(
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env,
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napi_open_callback_scope(env,
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args[0],
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context,
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&scope));
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// if the function has an exception pending after the call that is ok
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// so we don't use NAPI_CALL as we must close the callback scope regardless
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napi_value result = nullptr;
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napi_status function_call_result =
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napi_call_function(env, args[0], args[2], 0, nullptr, &result);
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if (function_call_result != napi_ok) {
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GET_AND_THROW_LAST_ERROR((env));
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}
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NAPI_CALL(env, napi_close_callback_scope(env, scope));
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return result;
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}
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static napi_env shared_env = nullptr;
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static napi_deferred deferred = nullptr;
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static void Callback(uv_work_t* req, int ignored) {
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napi_env env = shared_env;
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napi_handle_scope handle_scope = nullptr;
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NAPI_CALL_RETURN_VOID(env, napi_open_handle_scope(env, &handle_scope));
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napi_value resource_name;
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NAPI_CALL_RETURN_VOID(env, napi_create_string_utf8(
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env, "test", NAPI_AUTO_LENGTH, &resource_name));
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napi_async_context context;
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NAPI_CALL_RETURN_VOID(env,
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napi_async_init(env, nullptr, resource_name, &context));
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napi_value resource_object;
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NAPI_CALL_RETURN_VOID(env, napi_create_object(env, &resource_object));
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napi_value undefined_value;
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NAPI_CALL_RETURN_VOID(env, napi_get_undefined(env, &undefined_value));
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napi_callback_scope scope = nullptr;
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NAPI_CALL_RETURN_VOID(env, napi_open_callback_scope(env,
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resource_object,
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context,
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&scope));
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NAPI_CALL_RETURN_VOID(env,
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napi_resolve_deferred(env, deferred, undefined_value));
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NAPI_CALL_RETURN_VOID(env, napi_close_callback_scope(env, scope));
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NAPI_CALL_RETURN_VOID(env, napi_close_handle_scope(env, handle_scope));
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delete req;
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}
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napi_value TestResolveAsync(napi_env env, napi_callback_info info) {
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napi_value promise = nullptr;
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if (deferred == nullptr) {
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shared_env = env;
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NAPI_CALL(env, napi_create_promise(env, &deferred, &promise));
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uv_loop_t* loop = nullptr;
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NAPI_CALL(env, napi_get_uv_event_loop(env, &loop));
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uv_work_t* req = new uv_work_t();
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uv_queue_work(loop,
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req,
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[](uv_work_t*) {},
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Callback);
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}
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return promise;
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}
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napi_value Init(napi_env env, napi_value exports) {
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napi_property_descriptor descriptors[] = {
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DECLARE_NAPI_PROPERTY("runInCallbackScope", RunInCallbackScope),
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DECLARE_NAPI_PROPERTY("testResolveAsync", TestResolveAsync)
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};
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NAPI_CALL(env, napi_define_properties(
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env, exports, sizeof(descriptors) / sizeof(*descriptors), descriptors));
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return exports;
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}
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} // anonymous namespace
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NAPI_MODULE(NODE_GYP_MODULE_NAME, Init)
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