* Copyright (C) 2024 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "nmea_message_callback_napi.h"
#include "common_utils.h"
#include "ipc_skeleton.h"
#include "location_log.h"
#include "napi_util.h"
#include "constant_definition.h"
#include "napi/native_api.h"
#include "napi/native_common.h"
namespace OHOS {
namespace Location {
static std::mutex g_regCallbackMutex;
static std::vector<napi_ref> g_registerCallbacks;
NmeaMessageCallbackNapi::NmeaMessageCallbackNapi()
{
env_ = nullptr;
handlerCb_ = nullptr;
remoteDied_ = false;
}
NmeaMessageCallbackNapi::~NmeaMessageCallbackNapi()
{
LBSLOGW(NMEA_MESSAGE_CALLBACK, "~NmeaMessageCallbackNapi()");
}
int NmeaMessageCallbackNapi::OnRemoteRequest(
uint32_t code, MessageParcel& data, MessageParcel& reply, MessageOption& option)
{
LBSLOGD(NMEA_MESSAGE_CALLBACK, "NmeaMessageCallbackNapi::OnRemoteRequest!");
if (data.ReadInterfaceToken() != GetDescriptor()) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "invalid token.");
return -1;
}
if (remoteDied_) {
LBSLOGD(NMEA_MESSAGE_CALLBACK, "Failed to `%{public}s`,Remote service is died!", __func__);
return -1;
}
switch (code) {
case RECEIVE_NMEA_MESSAGE_EVENT: {
int64_t timestamp = data.ReadInt64();
std::string msg = Str16ToStr8(data.ReadString16());
OnMessageChange(timestamp, msg);
break;
}
default: {
IPCObjectStub::OnRemoteRequest(code, data, reply, option);
break;
}
}
return 0;
}
napi_env NmeaMessageCallbackNapi::GetEnv()
{
std::unique_lock<std::mutex> guard(mutex_);
return env_;
}
void NmeaMessageCallbackNapi::SetEnv(const napi_env& env)
{
std::unique_lock<std::mutex> guard(mutex_);
env_ = env;
}
napi_ref NmeaMessageCallbackNapi::GetHandleCb()
{
std::unique_lock<std::mutex> guard(mutex_);
return handlerCb_;
}
void NmeaMessageCallbackNapi::SetHandleCb(const napi_ref& handlerCb)
{
{
std::unique_lock<std::mutex> guard(mutex_);
handlerCb_ = handlerCb;
}
std::unique_lock<std::mutex> guard(g_regCallbackMutex);
g_registerCallbacks.emplace_back(handlerCb);
}
bool FindNmeaCallback(napi_ref cb)
{
std::unique_lock<std::mutex> guard(g_regCallbackMutex);
auto iter = std::find(g_registerCallbacks.begin(), g_registerCallbacks.end(), cb);
if (iter == g_registerCallbacks.end()) {
return false;
}
return true;
}
void DeleteNmeaCallback(napi_ref cb)
{
std::unique_lock<std::mutex> guard(g_regCallbackMutex);
for (auto iter = g_registerCallbacks.begin(); iter != g_registerCallbacks.end(); iter++) {
if (*iter == cb) {
iter = g_registerCallbacks.erase(iter);
break;
}
}
LBSLOGW(NMEA_MESSAGE_CALLBACK, "after DeleteNmeaCallback, callback size %{public}s",
std::to_string(g_registerCallbacks.size()).c_str());
}
bool NmeaMessageCallbackNapi::IsRemoteDied()
{
return remoteDied_;
}
napi_value NmeaMessageCallbackNapi::PackResult(const std::string msg)
{
napi_value result;
NAPI_CALL(env_, napi_create_string_utf8(env_, msg.c_str(), NAPI_AUTO_LENGTH, &result));
return result;
}
bool NmeaMessageCallbackNapi::Send(const std::string msg)
{
std::unique_lock<std::mutex> guard(mutex_);
uv_loop_s *loop = nullptr;
NAPI_CALL_BASE(env_, napi_get_uv_event_loop(env_, &loop), false);
if (loop == nullptr) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "loop == nullptr.");
return false;
}
if (handlerCb_ == nullptr) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "handler is nullptr.");
return false;
}
uv_work_t *work = new (std::nothrow) uv_work_t;
if (work == nullptr) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "work == nullptr.");
return false;
}
NmeaAsyncContext *context = new (std::nothrow) NmeaAsyncContext(env_);
if (context == nullptr) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "context == nullptr.");
delete work;
return false;
}
if (!InitContext(context)) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "InitContext fail");
delete work;
delete context;
return false;
}
context->msg = msg;
work->data = context;
UvQueueWork(loop, work);
return true;
}
void NmeaMessageCallbackNapi::UvQueueWork(uv_loop_s* loop, uv_work_t* work)
{
uv_queue_work_internal(
loop,
work,
[](uv_work_t *work) {},
[](uv_work_t *work, int status) {
NmeaAsyncContext *context = nullptr;
napi_handle_scope scope = nullptr;
if (work == nullptr) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "work is nullptr!");
return;
}
context = static_cast<NmeaAsyncContext *>(work->data);
if (context == nullptr || context->env == nullptr) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "context is nullptr!");
delete work;
return;
}
NAPI_CALL_RETURN_VOID(context->env, napi_open_handle_scope(context->env, &scope));
if (scope == nullptr) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "scope is nullptr");
delete context;
delete work;
return;
}
napi_value jsEvent;
CHK_NAPI_ERR_CLOSE_SCOPE(context->env,
napi_create_string_utf8(context->env, context->msg.c_str(), NAPI_AUTO_LENGTH, &jsEvent),
scope, context, work);
if (context->callback[0] != nullptr) {
napi_value undefine;
napi_value handler = nullptr;
napi_status ret = napi_ok;
CHK_NAPI_ERR_CLOSE_SCOPE(context->env, napi_get_undefined(context->env, &undefine),
scope, context, work);
if (FindNmeaCallback(context->callback[0])) {
CHK_NAPI_ERR_CLOSE_SCOPE(context->env,
napi_get_reference_value(context->env, context->callback[0], &handler),
scope, context, work);
ret = napi_call_function(context->env, nullptr, handler, 1, &jsEvent, &undefine);
} else {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "no valid callback");
}
if (ret != napi_ok) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "Report event failed");
}
}
NAPI_CALL_RETURN_VOID(context->env, napi_close_handle_scope(context->env, scope));
delete context;
delete work;
}, "nmeaMessageCallback");
}
void NmeaMessageCallbackNapi::OnMessageChange(int64_t timestamp, const std::string msg)
{
LBSLOGD(NMEA_MESSAGE_CALLBACK, "NmeaMessageCallbackNapi::OnMessageChange");
Send(msg);
}
void NmeaMessageCallbackNapi::DeleteHandler()
{
std::unique_lock<std::mutex> guard(mutex_);
if (handlerCb_ == nullptr || env_ == nullptr) {
LBSLOGE(NMEA_MESSAGE_CALLBACK, "handler or env is nullptr.");
return;
}
DeleteNmeaCallback(handlerCb_);
NAPI_CALL_RETURN_VOID(env_, napi_delete_reference(env_, handlerCb_));
handlerCb_ = nullptr;
}
}
}
