Logger中需要的依赖文件如下:https://download.csdn.net/download/Word_And_Me_/89556265
目录
项目目录结构
CMake配置
主目录 CMakeLists.txt
src 目录下的 CMakeLists.txt
案例代码整理
main.cpp
Logger.h
Logger.cpp
构建和运行
1、编译项目
2、运行项目
外部包配置
opencv配置
项目目录结构
ProjectRoot/
│── bin/ # 存放编译后的可执行文件
│── build/ # 编译过程中生成的中间文件
│── includes/ # 存放头文件(.h)
│── libs/ # 存放依赖库文件
│── logs/ # 存放日志文件
│── src/ # 存放源代码(.cpp 和 .h)
│ ├── main.cpp
│ ├── Logger.cpp
│ ├── Logger.h
│── CMakeLists.txt # 主CMake配置文件
│── README.md # 项目说明文档
CMake配置
主目录 CMakeLists.txt
cmake_minimum_required(VERSION 3.10) # 指定项目需要的最低 CMake 版本project(test_modbus LANGUAGES CXX) # 指定项目名称和支持的语言# 设置 C++ 标准
set(CMAKE_CXX_STANDARD 11) # 设置c++标准版本 11
set(CMAKE_CXX_STANDARD_REQUIRED True) # 要求项目必须使用C++11标准
set(CMAKE_CXX_EXTENSIONS False) # 禁用GNU扩展,仅使用严格的C++11标准# 设置可执行文件输出路径,程序主目录下的bin文件夹
set (EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin) # 添加外部包含目录
include_directories(${CMAKE_SOURCE_DIR}/includes ${CMAKE_SOURCE_DIR}/src)# 添加库目录
link_directories(${CMAKE_SOURCE_DIR}/libs)# 添加子目录
add_subdirectory (src)
src 目录下的 CMakeLists.txt
aux_source_directory (. SRC_LIST) # 将当前目录下的所有源文件添加到SRC_LIST变量中
# 可更换为显式管理文件:set(SRC_LIST main.cpp module1.cpp module2.cpp)add_executable(test_modbus ${SRC_LIST}) # 创建可执行文件test_modbus# 以下配置的include和lib均使用target_ 针对某个生成文件指定链接库# link threads库
target_link_libraries(test_modbus PRIVATE pthread)# 查找libmodbus库
find_package(PkgConfig REQUIRED)
pkg_check_modules(LIBMODBUS REQUIRED libmodbus)# 链接libmodbus库
target_link_libraries(test_modbus PRIVATE ${LIBMODBUS_LIBRARIES})# 查找opencv
find_package(OpenCV REQUIRED)
target_include_directories(test_modbus PRIVATE ${OpenCV_INCLUDE_DIRS})
target_link_libraries(test_modbus PRIVATE ${OpenCV_LIBS})# 可用于展示一些需要的信息
# message(STATUS "OpenCV version: ${OpenCV_VERSION}")
# message(STATUS "OpenCV include directories: ${OpenCV_INCLUDE_DIRS}")
# message(STATUS "OpenCV libraries: ${OpenCV_LIBS}")
# message(STATUS "OpenCV library directories: ${OpenCV_LIBRARY_DIRS}")
案例代码整理
main.cpp
#include <iostream>
#include <modbus/modbus.h>
#include <thread>
#include <opencv2/opencv.hpp>
#include <cstring>
#include "Logger.h"using namespace std;int main() {std::cout << "OpenCV Version: " << CV_VERSION << std::endl;initLogger();modbus_t* ctx;int rc, i;logger->info("Modbus test start");ctx = modbus_new_tcp("192.168.0.150", 502);if (ctx == NULL) {logger->error("Unable to allocate libmodbus context");return -1;}cout<<"ctx:"<<ctx<<endl;logger->info("Modbus context created");//modbus_set_debug(ctx, TRUE); // 开启调试模式if (modbus_set_slave(ctx, 1) == -1) {logger->error("Failed to set slave ID: {}", modbus_strerror(errno));modbus_free(ctx);return -1;}logger->info("Slave ID set");if (modbus_connect(ctx) == -1) {logger->error("Connection failed: {}", modbus_strerror(errno));modbus_free(ctx);return -1;}logger->info("Modbus connected");// 读取 M1~M10(线圈寄存器,地址 0x0000 起)//uint8_t M1_10[15];//rc = modbus_read_bits(ctx, 0x0000, 15, M1_10); // 读取 10 个线圈//if (rc == -1) {// logger->error("Failed to read M1~M10: {}", modbus_strerror(errno));// modbus_close(ctx);// modbus_free(ctx);// return -1;//}//std::cout << "M1~M10 values: ";//for (int i = 0; i < 15; ++i) {// std::cout << (int)M1_10[i] << " ";//}//std::cout << std::endl;// 读取 Y000~Y004(线圈寄存器,地址 0x3300 起)uint8_t Y0_4[5];rc = modbus_read_bits(ctx, 0x3300, 5, Y0_4); // 读取 10 个线圈if (rc == -1) {fprintf(stderr, "Failed to read M1~M10:%s\n", modbus_strerror(errno));modbus_close(ctx);modbus_free(ctx);return -1;}std::cout << "Y000~Y004 values: ";for (int i = 0; i < 5; ++i) {std::cout << (int)Y0_4[i] << " ";}cout << endl;修改M1~M10//uint8_t writer[15] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1};//uint8_t temp[2];//rc = modbus_write_bit(ctx, 0x000b, false);//if (rc == -1) {// fprintf(stderr, "Failed to write M11:%s\n", modbus_strerror(errno));// modbus_close(ctx);// modbus_free(ctx);// return -1;//}logger->info("Modbus test end");return 0;
}
Logger.h
// #pragma once
#ifndef LOGGER_H
#define LOGGER_H#include <iostream>
#include <vector>
#include <memory>
#include <spdlog/spdlog.h>
#include <spdlog/sinks/basic_file_sink.h>
#include <spdlog/sinks/rotating_file_sink.h>
#include <spdlog/sinks/stdout_color_sinks.h>extern std::shared_ptr<spdlog::logger> logger;void initLogger();#endif // !LOGGER_H
Logger.cpp
#include "Logger.h"std::shared_ptr<spdlog::logger> logger;void initLogger() {try {std::shared_ptr<spdlog::sinks::rotating_file_sink_mt> file_sink;std::shared_ptr<spdlog::sinks::stdout_color_sink_mt> console_sink;// 创建彩色控制台 sinkconsole_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt>();console_sink->set_pattern("[%Y-%m-%d %H:%M:%S.%e] [%n] [%^%l%$] %v"); // [%^%l%$] 中的 %^ 和 %$ 是颜色标记,%l 是日志级别,这样可以在日志级别部分应用颜色。console_sink->set_level(spdlog::level::debug);// 创建一个旋转文件日志记录器,每个文件最大10MB,保留10个文件// logger_file = spdlog::rotating_logger_mt("running-process", "logs/basic-log.txt", 1024 * 1024 * 10, 10);// 创建文件 rotating sinkfile_sink = std::make_shared<spdlog::sinks::rotating_file_sink_mt>("logs/basic-log.txt", 1024 * 1024 * 10, 10);// 设置日志记录器的级别file_sink->set_pattern("[%Y-%m-%d %H:%M:%S.%e] [%n] [%l] %v");file_sink->set_level(spdlog::level::debug);std::vector<spdlog::sink_ptr> sinks{ console_sink, file_sink };logger = std::make_shared<spdlog::logger>("multi_sink", sinks.begin(), sinks.end());logger->set_pattern("%^[%Y-%m-%d %H:%M:%S.%e] [%n] [%l] %v%$");logger->set_level(spdlog::level::debug);spdlog::flush_every(std::chrono::seconds(5));spdlog::set_default_logger(logger);}catch (const spdlog::spdlog_ex& ex) {std::cout << "日志初始化失败: " << ex.what() << std::endl;}
}
构建和运行
1、编译项目
mkdir build
cd build
cmake ..
make
2、运行项目
./bin/test_modbus
外部包配置
opencv配置
sudo apt-get update
sudo apt-get install libopencv-dev
或
sudo apt update
sudo apt install libopencv-dev
一般会将opencv的include和lib下载至/usr/include 和 /usr/lib中,若找不到对应的依赖包,可以使用find命令查找:find /usr/ -name opencv