403 lines
12 KiB
C++
403 lines
12 KiB
C++
#include "client2.h"
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#include "PQSMsg.h"
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#include "dealMsg.h"
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#include <iostream>
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#include <cmath>
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#include <cstring>
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#include <cstdlib>
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#include <vector>
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#include <memory>
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#include <mutex>
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#include <unordered_map>
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// 配置参数
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constexpr int BASE_RECONNECT_DELAY = 5000; // 基础重连延迟(ms)
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constexpr int MAX_RECONNECT_DELAY = 60000; // 最大重连延迟(ms)
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constexpr const char* SERVER_IP = "172.25.144.1"; // 目标服务器IP"101.132.39.45"
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constexpr int SERVER_PORT = 61000; // 目标服务器端口1056
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static uv_loop_t* global_loop = nullptr;
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static uv_timer_t monitor_timer;
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extern SafeMessageQueue message_queue;
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// ClientContext 实现
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ClientContext::ClientContext(uv_loop_t* loop, const DeviceInfo& device, int index)
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: loop(loop), state(ConnectionState::DISCONNECTED),
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reconnect_attempts(0), shutdown(false), device_info(device), index_(index) {
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// 初始化 TCP 句柄
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uv_tcp_init(loop, &client);
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client.data = this;
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// 初始化定时器
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uv_timer_init(loop, &timer);
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timer.data = this;
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// 初始化重连定时器
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uv_timer_init(loop, &reconnect_timer);
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reconnect_timer.data = this;
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}
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ClientContext::~ClientContext() {
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stop_timers();
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close_handles();
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}
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void ClientContext::init_tcp() {
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if (!uv_is_active((uv_handle_t*)&client)) {
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uv_tcp_init(loop, &client);
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client.data = this;
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}
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}
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void ClientContext::start_timer() {
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if (!uv_is_active((uv_handle_t*)&timer)) {
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uv_timer_start(&timer, on_timer, 6000, 6000);
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}
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}
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void ClientContext::start_reconnect_timer(int delay) {
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if (!uv_is_active((uv_handle_t*)&reconnect_timer)) {
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uv_timer_start(&reconnect_timer, try_reconnect, delay, 0);
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}
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}
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void ClientContext::stop_timers() {
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if (uv_is_active((uv_handle_t*)&timer)) uv_timer_stop(&timer);
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if (uv_is_active((uv_handle_t*)&reconnect_timer)) uv_timer_stop(&reconnect_timer);
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}
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void ClientContext::close_handles() {
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if (!uv_is_closing((uv_handle_t*)&client)) {
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uv_close((uv_handle_t*)&client, nullptr);
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}
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if (!uv_is_closing((uv_handle_t*)&timer)) {
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uv_close((uv_handle_t*)&timer, nullptr);
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}
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if (!uv_is_closing((uv_handle_t*)&reconnect_timer)) {
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uv_close((uv_handle_t*)&reconnect_timer, nullptr);
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}
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}
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/* 缓冲区分配回调 */
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void alloc_buffer(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
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buf->base = new char[suggested_size];
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buf->len = suggested_size;
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}
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/* 数据读取回调 */
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void on_read(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
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ClientContext* ctx = static_cast<ClientContext*>(stream->data);
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if (nread < 0) {
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if (nread != UV_EOF) {
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std::cerr << "[Device " << ctx->device_info.device_id
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<< "] RECV ERROR: " << uv_strerror(nread) << std::endl;
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}
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uv_close((uv_handle_t*)stream, on_close);
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delete[] buf->base;
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return;
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}
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if (nread > 0) {
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// 将接收到的数据放入消息队列
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deal_message_t msg;
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msg.device_id = ctx->device_info.device_id; // 直接赋值
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msg.mac = ctx->device_info.mac; // 直接赋值
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// 复制测点信息
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msg.points = ctx->device_info.points;
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msg.data = static_cast<char*>(malloc(nread));
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msg.length = nread;
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memcpy(msg.data, buf->base, nread);
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if (!message_queue.push(msg)) {
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std::cerr << "[Device " << ctx->device_info.device_id
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<< "] Message queue full, dropping message" << std::endl;
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free(msg.data);
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}
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std::cout << "on_read: " << ctx->device_info.mac << " get!" << std::endl;
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}
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delete[] buf->base;
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}
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/* 数据写入回调 */
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void on_write(uv_write_t* req, int status) {
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ClientContext* ctx = static_cast<ClientContext*>(req->handle->data);
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if (status < 0) {
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std::cerr << "[Device " << ctx->device_info.device_id
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<< "] SEND ERROR: " << uv_strerror(status) << std::endl;
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}
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std::cout << "on_write: " << ctx->device_info.mac << " down!" << std::endl;
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delete[] static_cast<char*>(req->data); // 释放发送数据缓冲区
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delete req; // 释放写入请求
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}
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/* 定时发送回调 */
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void on_timer(uv_timer_t* handle) {
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ClientContext* ctx = static_cast<ClientContext*>(handle->data);
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if (ctx->state != ConnectionState::CONNECTED) {
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return;
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}
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std::cout << "on_timer: " << ctx->device_info.mac << " send!"<< std::endl;
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// 使用装置自己的MAC地址生成登录报文
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auto binary_data = generate_frontlogin_message(ctx->device_info.mac);
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// 调用发送函数
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send_binary_data(ctx, binary_data.data(), binary_data.size());
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//ClientManager::instance().send_to_device(ctx->device_info.mac, binary_data.data(), binary_data.size());
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// 根据装置状态发送其他数据
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if (ctx->device_info.status == 1) { // 在线状态
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// 可以发送装置配置信息或测点数据
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}
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}
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/* 发送二进制报文函数 */
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void send_binary_data(ClientContext* ctx, const unsigned char* data, size_t data_size) {
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if (ctx->state != ConnectionState::CONNECTED) {
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std::cerr << "[Device " << ctx->device_info.device_id
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<< "] Cannot send: not connected" << std::endl;
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return;
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}
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uv_buf_t buf = uv_buf_init(const_cast<char*>(reinterpret_cast<const char*>(data)), data_size);
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uv_write_t* write_req = new uv_write_t;
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// 复制数据以确保安全
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char* data_copy = new char[data_size];
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memcpy(data_copy, data, data_size);
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write_req->data = data_copy;
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int ret = uv_write(write_req, (uv_stream_t*)&ctx->client, &buf, 1, on_write);
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if (ret < 0) {
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std::cerr << "[Device " << ctx->device_info.device_id
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<< "] uv_write failed: " << uv_strerror(ret) << std::endl;
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delete[] data_copy;
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delete write_req;
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}
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}
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/* 连接关闭回调 */
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void on_close(uv_handle_t* handle) {
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ClientContext* ctx = static_cast<ClientContext*>(handle->data);
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ctx->state = ConnectionState::DISCONNECTED;
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std::cerr << "[Device " << ctx->device_info.device_id << "] Connection closed" << std::endl;
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ctx->stop_timers();
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if (!ctx->shutdown) {
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int delay = BASE_RECONNECT_DELAY * pow(2, ctx->reconnect_attempts);
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delay = delay > MAX_RECONNECT_DELAY ? MAX_RECONNECT_DELAY : delay;
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std::cout << "[Device " << ctx->device_info.device_id
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<< "] Reconnecting in " << delay << "ms (attempt "
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<< ctx->reconnect_attempts + 1 << ")" << std::endl;
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ctx->reconnect_attempts++;
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ctx->start_reconnect_timer(delay);
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}
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}
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/* 尝试重连 */
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void try_reconnect(uv_timer_t* timer) {
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ClientContext* ctx = static_cast<ClientContext*>(timer->data);
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if (ctx->state != ConnectionState::DISCONNECTED || ctx->shutdown) {
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return;
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}
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std::cerr << "[Device " << ctx->device_info.device_id << "] Attempting reconnect" << std::endl;
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ctx->init_tcp();
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ctx->state = ConnectionState::CONNECTING;
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struct sockaddr_in addr;
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uv_ip4_addr(SERVER_IP, SERVER_PORT, &addr);
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uv_connect_t* req = new uv_connect_t;
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req->data = ctx;
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int ret = uv_tcp_connect(req, &ctx->client, (const struct sockaddr*)&addr, on_connect);
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if (ret < 0) {
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std::cerr << "[Device " << ctx->device_info.device_id
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<< "] Connect error: " << uv_strerror(ret) << std::endl;
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delete req;
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uv_close((uv_handle_t*)&ctx->client, on_close);
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}
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}
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/* 连接建立回调 */
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void on_connect(uv_connect_t* req, int status) {
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ClientContext* ctx = static_cast<ClientContext*>(req->data);
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delete req;
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if (status < 0) {
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std::cerr << "[Device " << ctx->device_info.device_id
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<< "] Connect failed: " << uv_strerror(status) << std::endl;
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if (!uv_is_closing((uv_handle_t*)&ctx->client)) {
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uv_close((uv_handle_t*)&ctx->client, on_close);
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}
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return;
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}
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std::cerr << "[Device " << ctx->device_info.device_id << "] Connected to server" << std::endl;
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ctx->state = ConnectionState::CONNECTED;
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ctx->reconnect_attempts = 0;
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uv_read_start((uv_stream_t*)&ctx->client, alloc_buffer, on_read);
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ctx->start_timer();
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}
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/* 初始化所有客户端连接 */
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void init_clients(uv_loop_t* loop, const std::vector<DeviceInfo>& devices) {
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auto& manager = ClientManager::instance();
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manager.set_loop(loop); // 使用公共方法设置事件循环
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for (const auto& device : devices) {
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manager.add_device(device);
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}
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}
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/* 停止所有客户端 */
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void stop_all_clients() {
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auto& manager = ClientManager::instance();
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manager.stop_all();
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}
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/* 连接监控回调 */
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void monitor_connections(uv_timer_t* handle) {
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static int recovery_counter = 0;
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if (++recovery_counter >= 5) {
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int active_count = 0;
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auto& manager = ClientManager::instance();
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size_t total_clients = manager.client_count();
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// 实际应用中，这里需要实现获取活动连接数的方法
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// 简化处理，只显示总连接数
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std::cout << "Total connections: " << total_clients << std::endl;
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recovery_counter = 0;
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}
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}
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static void close_walk_cb(uv_handle_t* handle, void* arg) {
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if (!uv_is_closing(handle)) {
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uv_close(handle, nullptr);
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}
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}
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/* 启动客户端连接 */
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void start_client_connect(const std::vector<DeviceInfo>& devices) {
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// 创建全局事件循环
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global_loop = uv_default_loop();
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// 初始化所有客户端
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init_clients(global_loop, devices);
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// 启动连接监控
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uv_timer_init(global_loop, &monitor_timer);
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uv_timer_start(&monitor_timer, monitor_connections, 1000, 1000);
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// 运行事件循环
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uv_run(global_loop, UV_RUN_DEFAULT);
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// 添加资源清理阶段
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while (uv_loop_alive(global_loop)) {
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uv_run(global_loop, UV_RUN_ONCE);
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}
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// 安全关闭事件循环
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int err = uv_loop_close(global_loop);
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if (err) {
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std::cerr << "uv_loop_close error: " << uv_strerror(err) << std::endl;
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// 强制清理残留句柄（调试用）
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uv_walk(global_loop, close_walk_cb, nullptr);
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uv_run(global_loop, UV_RUN_NOWAIT);
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}
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// 清理所有客户端
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stop_all_clients();
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global_loop = nullptr;
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}
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// ClientManager 成员函数实现
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void ClientManager::add_device(const DeviceInfo& device) {
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std::lock_guard<std::mutex> lock(mutex_);
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if (!loop_) {
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std::cerr << "[Device " << device.device_id << "] Cannot add: event loop not set\n";
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return;
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}
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// 检查是否已存在相同ID的装置
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if (clients_.find(device.device_id) != clients_.end()) {
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std::cerr << "[Device " << device.device_id << "] Already exists, skip adding\n";
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return;
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}
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// 创建新的客户端上下文
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int index = clients_.size();
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auto ctx = std::unique_ptr<ClientContext>(new ClientContext(loop_, device, index));
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// 添加到管理映射
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clients_[device.device_id] = std::move(ctx);
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// 启动连接
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try_reconnect(&clients_[device.device_id]->reconnect_timer);
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std::cout << "[Device " << device.device_id << "] Added successfully\n";
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}
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void ClientManager::remove_device(const std::string& device_id) {
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std::lock_guard<std::mutex> lock(mutex_);
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auto it = clients_.find(device_id);
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if (it == clients_.end()) {
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std::cerr << "[Device " << device_id << "] Not found, cannot remove\n";
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return;
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}
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// 关闭连接并移除
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it->second->shutdown = true;
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it->second->close_handles();
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clients_.erase(it);
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std::cout << "[Device " << device_id << "] Removed successfully\n";
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}
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bool ClientManager::send_to_device(const std::string& identifier,
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const unsigned char* data,
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size_t size) {
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std::lock_guard<std::mutex> lock(mutex_);
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for (auto& pair : clients_) {
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auto& ctx = pair.second;
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// 匹配装置ID或MAC地址
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if (ctx->device_info.device_id == identifier ||
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ctx->device_info.mac == identifier) {
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if (ctx->state == ConnectionState::CONNECTED) {
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send_binary_data(ctx.get(), data, size);
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return true;
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}
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std::cerr << "[Device " << identifier << "] Not connected\n";
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return false;
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}
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}
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std::cerr << "[Device " << identifier << "] Not found\n";
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return false;
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}
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void ClientManager::stop_all() {
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std::lock_guard<std::mutex> lock(mutex_);
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for (auto& pair : clients_) {
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pair.second->shutdown = true;
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pair.second->close_handles();
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}
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clients_.clear();
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} |