fix memleak

LFtid1056/client2.cpp

@@ -418,7 +418,7 @@ void on_read(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
 }
 
 /* 数据写入回调 */
-void on_write(uv_write_t* req, int status) {
+/*void on_write(uv_write_t* req, int status) {
     ClientContext* ctx = static_cast<ClientContext*>(req->handle->data);
 
     if (status < 0) {
@@ -428,6 +428,23 @@ void on_write(uv_write_t* req, int status) {
     std::cout << "on_write: " << ctx->device_info.mac << " down!" << std::endl;
     delete[] static_cast<char*>(req->data);  // 释放发送数据缓冲区
     delete req;        // 释放写入请求
+}*/
+
+//lnk20251209
+void on_write(uv_write_t* req, int status) {
+    ClientContext* ctx = static_cast<ClientContext*>(req->handle->data);
+
+    if (status < 0) {
+        std::cerr << "[Device " << ctx->device_info.device_id
+                  << "] SEND ERROR: " << uv_strerror(status) << std::endl;
+    }
+    std::cout << "on_write: " << ctx->device_info.mac << " down!" << std::endl;
+
+    // 正确释放发送数据缓冲区
+    auto* data_vec = static_cast<std::vector<unsigned char>*>(req->data);
+    delete data_vec;   // ✅ 与 new std::vector<unsigned char> 匹配
+
+    delete req;        // ✅ 与 new uv_write_t 匹配
 }
 
 /* 定时发送回调 */
@@ -541,7 +558,7 @@ void send_binary_data(ClientContext* ctx, const unsigned char* data, size_t data
 }
 
 // 新增函数：在事件循环线程中安全发送数据
-void safe_send_binary_data(ClientContext* ctx, std::vector<unsigned char> data) {
+/*void safe_send_binary_data(ClientContext* ctx, std::vector<unsigned char> data) {
     uv_work_t* req = new uv_work_t;
     req->data = new std::pair<ClientContext*, std::vector<unsigned char>>(ctx, std::move(data));
 
@@ -570,7 +587,53 @@ void safe_send_binary_data(ClientContext* ctx, std::vector<unsigned char> data)
             delete pair;
             delete req;
         });
+}*/
+
+
+//lnk20251209
+void safe_send_binary_data(ClientContext* ctx, std::vector<unsigned char> data) {
+    uv_work_t* req = new uv_work_t;
+    req->data = new std::pair<ClientContext*, std::vector<unsigned char>>(ctx, std::move(data));
+
+    uv_queue_work(ctx->loop, req,
+        [](uv_work_t* ) { //req
+            // 在工作线程中不执行实际工作
+        },
+        [](uv_work_t* req, int status) {
+            auto* pair = static_cast<std::pair<ClientContext*, std::vector<unsigned char>>*>(req->data);
+            ClientContext* ctx = pair->first;
+            std::vector<unsigned char>& original_data = pair->second;
+
+            if (ctx->state == ConnectionState::CONNECTED) {
+                // 把数据复制到 write_req 自己持有的 vector 里
+                auto* send_buf = new std::vector<unsigned char>(original_data);
+
+                uv_buf_t buf = uv_buf_init(
+                    reinterpret_cast<char*>(send_buf->data()),
+                    send_buf->size()
+                );
+
+                uv_write_t* write_req = new uv_write_t;
+                write_req->data = send_buf; // on_write 里 delete
+
+                int ret = uv_write(write_req, (uv_stream_t*)&ctx->client, &buf, 1, on_write);
+                if (ret < 0) {
+                    // 错误处理：uv_write 没接管，自己负责释放
+                    std::cerr << "[Device " << ctx->device_info.device_id
+                              << "] uv_write error: " << uv_strerror(ret) << std::endl;
+                    delete send_buf;
+                    delete write_req;
+                }
+            }
+
+            // 这里可以安全删除 pair，发送使用的是 send_buf 那份拷贝
+            delete pair;
+            delete req;
+        }
+    );
 }
+
+
 /* 连接关闭回调 */
 void on_close(uv_handle_t* handle) {
     ClientContext* ctx = static_cast<ClientContext*>(handle->data);

LFtid1056/cloudfront/code/main.cpp

@@ -669,13 +669,13 @@ void Front::mqproducerThread()
 
 extern thread_info_t thread_info[THREAD_CONNECTIONS];
 
-void cleanup_args(ThreadArgs* args) {
+/*void cleanup_args(ThreadArgs* args) {
     for (int i = 0; i < args->argc; ++i) {
         free(args->argv[i]);  // strdup 分配的
     }
     delete[] args->argv;
     delete args;
-}
+}*/
 
 void* cloudfrontthread(void* arg) {