63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <time.h>
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#include <queue>
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#include <vector>
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#include <atomic>
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#include <string>
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using namespace std;
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/* 常量定义 */
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#define MESSAGE_QUEUE_SIZE 10000 // 消息队列容量
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// 修改后的 deal_message_t 结构
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struct deal_message_t {
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std::string device_id; // 使用 std::string 代替 char 数组
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std::string mac; // 使用 std::string 代替 char 数组
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char* data; // 接收到的数据
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size_t length; // 数据长度
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std::vector<PointInfo> points; // 关联的测点信息
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};
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/* 线程安全的消息队列 */
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class SafeMessageQueue {
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private:
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std::queue<deal_message_t> queue;
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pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
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pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
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std::atomic<int> count{ 0 };
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public:
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bool push(const deal_message_t& msg) {
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pthread_mutex_lock(&mutex);
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if (queue.size() >= MESSAGE_QUEUE_SIZE) {
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pthread_mutex_unlock(&mutex);
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return false;
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}
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queue.push(msg);
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count++;
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pthread_cond_signal(&cond);
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pthread_mutex_unlock(&mutex);
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return true;
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}
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bool pop(deal_message_t& msg) {
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pthread_mutex_lock(&mutex);
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while (queue.empty()) {
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pthread_cond_wait(&cond, &mutex);
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}
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msg = queue.front();
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queue.pop();
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count--;
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pthread_mutex_unlock(&mutex);
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return true;
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}
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size_t size() const {
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return count.load();
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}
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};
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void process_received_message(string mac, const char* data, size_t length); |