OpenHarmony开发者论坛

标题: ArkTs与C++通信时，在NAPI中调用C端的方法后，返回的结果会等待2分11秒才会返回？ [打印本页]

作者: LCoder1024 时间: 2024-1-28 00:12
标题: ArkTs与C++通信时，在NAPI中调用C端的方法后，返回的结果会等待2分11秒才会返回？
[md]ArkTs与C++通信时，在NAPI中调用C端的方法【C会调用服务做网络请求】后，服务端的服务开启，就会立马返回结果码；如果服务端的服务未开启的时候，NAPI 调用C端的方法后需要等待2分11秒才会返回结果码，（Android中会立马返回结果码）
[/md]

作者: 马迪 时间: 2024-1-29 09:58
没有代码，大家怎么看呢
大概率是代码写的有问题

作者: LCoder1024 时间: 2024-1-29 10:22
回复马迪: unsigned char *stringToUnsignedChar(napi_env env, napi_value arg) {
char *type = nullptr;
size_t typeLen = 0;
napi_get_value_string_utf8(env, arg, nullptr, 0, &typeLen);
type = new char[typeLen + 1];
napi_get_value_string_utf8(env, arg, type, typeLen + 1, &typeLen);
string str = type;
char *temp = (char *)str.data();
unsigned char *unsignedCharPtr = reinterpret_cast<unsigned char *>(const_cast<char *>(temp));
return unsignedCharPtr;
}

struct InitData {
napi_async_work asyncWork = nullptr;
napi_deferred deferred = nullptr;
napi_ref callback = nullptr;
unsigned char *args[5] = {};
int result = 0;
};
static napi_value initialize(napi_env env, napi_callback_info info) {
size_t argc = 5;
napi_value args[5] = {nullptr};
napi_get_cb_info(env, info, &argc, args, nullptr, nullptr);
napi_value promise = nullptr;
napi_deferred deferred = nullptr;
napi_create_promise(env, &deferred, &promise);
// 异步工作项上下文用户数据，传递到异步工作项的execute、complete之间传递数据
auto initData = new InitData{
      .asyncWork = nullptr,
      .deferred = deferred,
};
initData->args[0] = stringToUnsignedChar(env, args[0]);
initData->args[1] = stringToUnsignedChar(env, args[1]);
initData->args[2] = stringToUnsignedChar(env, args[2]);
initData->args[3] = stringToUnsignedChar(env, args[3]);
initData->args[4] = stringToUnsignedChar(env, args[4]);

// 创建async work，创建成功后通过最后一个参数(addonData->asyncWork)返回async work的handle
napi_value resource = nullptr;
napi_create_string_utf8(env, "initialize", NAPI_AUTO_LENGTH, &resource);
napi_create_async_work(
      env, nullptr, resource, [](napi_env env, void *data) {
      InitData *initData = (InitData *)data;
unsigned char *cfgFilePath = initData->args[0];
unsigned char *userID = initData->args[1];
unsigned char *appID = initData->args[2];
unsigned char *deviceID = initData->args[3];
unsigned char *certID = initData->args[4];

initData->result = HSOF_Initialize_short(cfgFilePath, userID, appID, deviceID, certID); },
      [](napi_env env, napi_status status, void *data) {
         InitData *initData = (InitData *)data;
         napi_value result = nullptr;
         napi_create_int64(env, initData->result, &result);
         napi_resolve_deferred(env, initData->deferred, result);
         if (initData->callback != nullptr) {
            napi_delete_reference(env, initData->callback);
         }
         // 删除异步 work
         napi_delete_async_work(env, initData->asyncWork);
         delete initData;
         initData = nullptr;
      },
      (void *)initData, &initData->asyncWork);
// 将刚创建的async work加到队列，由底层去调度执行
napi_queue_async_work(env, initData->asyncWork);
return promise;
}

EXTERN_C_START
static napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor desc[] = {
      {"initialize", nullptr, initialize, nullptr, nullptr, nullptr, napi_default, nullptr}};
napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
return exports;
}
EXTERN_C_END
static napi_module demoModule = {
.nm_version = 1,
.nm_flags = 0,
.nm_filename = nullptr,
.nm_register_func = Init,
.nm_modname = "Shield",
.nm_priv = ((void *)0),
.reserved = {0},
};

extern "C" __attribute__((constructor)) void RegisterShieldModule(void) {
napi_module_register(&demoModule);
}

作者: LCoder1024 时间: 2024-1-29 10:23
代码补充

unsigned char *stringToUnsignedChar(napi_env env, napi_value arg) {
char *type = nullptr;
size_t typeLen = 0;
napi_get_value_string_utf8(env, arg, nullptr, 0, &typeLen);
type = new char[typeLen + 1];
napi_get_value_string_utf8(env, arg, type, typeLen + 1, &typeLen);
string str = type;
char *temp = (char *)str.data();
unsigned char *unsignedCharPtr = reinterpret_cast<unsigned char *>(const_cast<char *>(temp));
return unsignedCharPtr;
}

struct InitData {
napi_async_work asyncWork = nullptr;
napi_deferred deferred = nullptr;
napi_ref callback = nullptr;
unsigned char *args[5] = {};
int result = 0;
};
static napi_value initialize(napi_env env, napi_callback_info info) {
size_t argc = 5;
napi_value args[5] = {nullptr};
napi_get_cb_info(env, info, &argc, args, nullptr, nullptr);
napi_value promise = nullptr;
napi_deferred deferred = nullptr;
napi_create_promise(env, &deferred, &promise);
// 异步工作项上下文用户数据，传递到异步工作项的execute、complete之间传递数据
auto initData = new InitData{
      .asyncWork = nullptr,
      .deferred = deferred,
};
initData->args[0] = stringToUnsignedChar(env, args[0]);
initData->args[1] = stringToUnsignedChar(env, args[1]);
initData->args[2] = stringToUnsignedChar(env, args[2]);
initData->args[3] = stringToUnsignedChar(env, args[3]);
initData->args[4] = stringToUnsignedChar(env, args[4]);

// 创建async work，创建成功后通过最后一个参数(addonData->asyncWork)返回async work的handle
napi_value resource = nullptr;
napi_create_string_utf8(env, "initialize", NAPI_AUTO_LENGTH, &resource);
napi_create_async_work(
      env, nullptr, resource, [](napi_env env, void *data) {
      InitData *initData = (InitData *)data;
unsigned char *cfgFilePath = initData->args[0];
unsigned char *userID = initData->args[1];
unsigned char *appID = initData->args[2];
unsigned char *deviceID = initData->args[3];
unsigned char *certID = initData->args[4];

initData->result = HSOF_Initialize_short(cfgFilePath, userID, appID, deviceID, certID); },
      [](napi_env env, napi_status status, void *data) {
         InitData *initData = (InitData *)data;
         napi_value result = nullptr;
         napi_create_int64(env, initData->result, &result);
         napi_resolve_deferred(env, initData->deferred, result);
         if (initData->callback != nullptr) {
            napi_delete_reference(env, initData->callback);
         }
         // 删除异步 work
         napi_delete_async_work(env, initData->asyncWork);
         delete initData;
         initData = nullptr;
      },
      (void *)initData, &initData->asyncWork);
// 将刚创建的async work加到队列，由底层去调度执行
napi_queue_async_work(env, initData->asyncWork);
return promise;
}

EXTERN_C_START
static napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor desc[] = {
      {"initialize", nullptr, initialize, nullptr, nullptr, nullptr, napi_default, nullptr}};
napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
return exports;
}
EXTERN_C_END
static napi_module demoModule = {
.nm_version = 1,
.nm_flags = 0,
.nm_filename = nullptr,
.nm_register_func = Init,
.nm_modname = "Shield",
.nm_priv = ((void *)0),
.reserved = {0},
};

extern "C" __attribute__((constructor)) void RegisterShieldModule(void) {
napi_module_register(&demoModule);
}

作者: 马迪 时间: 2024-1-29 15:56
调试一下把，或者打打日志，看下HSOF_Initialize_short的实现

欢迎光临 OpenHarmony开发者论坛 (https://forums.openharmony.cn/)