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main.cpp
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executable file
·74 lines (55 loc) · 2.02 KB
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// main.cpp
/**
// 僅寫一次固定數值
#include "shared_memory_writer.h"
#include <iostream>
#include <vector>
int main() {
const std::string name = "/my_shared_memory"; // 共享記憶體名稱
const size_t dataSize = 2; // 要寫入的浮點數數量
// 創建共享記憶體寫入器
SharedMemoryWriter writer(name, dataSize);
// 要寫入的浮點數數據
std::vector<float> data = {1.55f, 2.66f};
// 寫入共享記憶體
if (!writer.writeData(data)) {
std::cerr << "寫入共享記憶體失敗" << std::endl;
return 1;
}
return 0;
}
**/
#include "shared_memory_writer.h"
#include <iostream>
#include <vector>
#include <cstdlib> // 用於 rand() 函數
#include <ctime> // 用於 time() 函數
#include <chrono>
#include <thread>
/**
本程式會每100ms隨機寫dataSize個數值
**/
int main() {
const std::string name = "/my_shared_memory"; // 共享記憶體名稱
const size_t dataSize = 2; // 要寫入的浮點數數量（2 個）
float data[dataSize] = {0.0};
// 創建共享記憶體寫入器
SharedMemoryWriter writer(name, sizeof(data), data);
// 初始化隨機數生成器
std::srand(static_cast<unsigned int>(std::time(nullptr)));
while (true) {
// 產生兩個隨機浮點數
data[0] = static_cast<float>(std::rand()) / (static_cast<float>(RAND_MAX / 100.0f));
data[1] = static_cast<float>(std::rand()) / (static_cast<float>(RAND_MAX / 100.0f));
// 寫入共享記憶體
if (!writer.writeData()) {
std::cerr << "寫入共享記憶體失敗" << std::endl;
return 1;
}
// 輸出已寫入的數據
std::cout << "已寫入隨機浮點數：" << data[0] << ", " << data[1] << std::endl;
// 每隔 100 毫秒執行一次
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}
return 0;
}