vector<vector<MyOCR>> part_txt; string folder_src = "F:\work\2023-0313-0317\image\res\cell"; string folder_dest; vector<Mat> image; vector<string> image_name; vector<string> image_path; ifstream fin(folder_src.c_str()); if (_access(folder_src.c_str(), 0) == -1) { return 50; }这段代码有什么问题
时间: 2023-05-22 22:01:00 浏览: 65
这段代码可能存在以下问题:
1. 变量 MyOCR 没有定义,可能会导致编译错误。
2. 变量 folder_dest 没有初始化,可能会导致未定义的行为。
3. ifstream fin(folder_src.c_str()) 可能会导致文件打开失败,需要进行错误处理。
4. _access(folder_src.c_str(), 0) == -1 可能会导致文件夹不存在或没有访问权限,需要进行错误处理。
5. 缺少对 image、image_name 和 image_path 变量的初始化,可能会导致未定义的行为。
相关问题
#include<iostream> #include<ctime> #include<chrono> #include<string> #include<filesystem> #include<fstream> #include<sstream> #include<thread> #include<boost/filesystem.hpp> const uintmax_t MAX_LOGS_SIZE = 10ull * 1024ull * 1024ull * 1024ull; //const uintmax_t MAX_LOGS_SIZE = 10ull; void create_folder(std::string folder_name) { boost::filesystem::create_directory(folder_name); std::string sub_foldername=folder_name+"/logs_ros"; boost::filesystem::create_directory(sub_foldername); } std::string get_current_time() { auto now = std::chrono::system_clock::now(); std::time_t now_c = std::chrono::system_clock::to_time_t(now); std::tm parts = *std::localtime(&now_c); char buffer[20]; std::strftime(buffer, sizeof(buffer), "%Y-%m-%d-%H-%M", &parts); return buffer; } void check_logs_size() { std::string logs_path = "/home/sage/logs/"; boost::filesystem::path logs_dir(logs_path); std::uintmax_t total_size = 0; for (const auto& file : boost::filesystem::recursive_directory_iterator(logs_dir)) { if (boost::filesystem::is_regular_file(file)) { total_size += boost::filesystem::file_size(file); } } if (total_size > MAX_LOGS_SIZE) { boost::filesystem::path earliest_dir; std::time_t earliest_time = std::time(nullptr); for (const auto& dir : boost::filesystem::directory_iterator(logs_dir)) { if (boost::filesystem::is_directory(dir)) { std::string dir_name = dir.path().filename().string(); std::tm time_parts = {}; std::istringstream ss(dir_name); std::string part; std::getline(ss, part, '-'); time_parts.tm_year = std::stoi(part) - 1900; std::getline(ss, part, '-'); time_parts.tm_mon = std::stoi(part) - 1; std::getline(ss, part, '-'); time_parts.tm_mday = std::stoi(part); std::getline(ss, part, '-'); time_parts.tm_hour = std::stoi(part); std::getline(ss, part, '-'); time_parts.tm_min = std::stoi(part); std::time_t dir_time = std::mktime(&time_parts); if (dir_time < earliest_time) { earliest_time = dir_time; earliest_dir = dir.path(); } } } if (!earliest_dir.empty()) { boost::filesystem::remove_all(earliest_dir); } } } int main() { std::string logs_path = "/home/sage/logs/"; while (true) { std::chrono::system_clock::time_point now = std::chrono::system_clock::now(); std::time_t now_c = std::chrono::system_clock::to_time_t(now); std::tm parts = *std::localtime(&now_c); if (parts.tm_min % 10 == 0) { std::string folder_name = logs_path + get_current_time(); create_folder(folder_name); } check_logs_size(); std::this_thread::sleep_for(std::chrono::minutes(1)); } return 0; }修改为ros节点
好的,我可以帮您将这段代码修改为ROS节点。首先,我们需要包含ROS所需的头文件,例如:
```cpp
#include <ros/ros.h>
```
然后,我们需要在main函数中初始化ROS节点:
```cpp
int main(int argc, char** argv) {
ros::init(argc, argv, "log_manager_node");
ros::NodeHandle nh;
// ...
return 0;
}
```
接下来,我们需要将定时任务和日志删除任务分别封装为ROS的定时器和服务。在main函数中,我们可以这样定义一个定时器:
```cpp
ros::Timer timer = nh.createTimer(ros::Duration(60.0), timerCallback);
```
其中,`timerCallback` 是一个你需要定义的回调函数,它将在每隔60秒被定时器调用一次。在回调函数中,你可以像之前的代码一样执行创建文件夹和检查日志大小的任务。
同样地,我们可以定义一个ROS服务来执行删除任务。我们需要在main函数中定义一个服务服务器:
```cpp
ros::ServiceServer delete_logs_server = nh.advertiseService("delete_logs", deleteLogsCallback);
```
其中,`deleteLogsCallback` 是一个你需要定义的服务回调函数,它将在收到删除日志服务请求时被调用。在回调函数中,你可以像之前的代码一样执行删除日志的任务。
最后,完整的ROS节点代码如下:
```cpp
#include <ros/ros.h>
#include <ctime>
#include <chrono>
#include <string>
#include <filesystem>
#include <fstream>
#include <sstream>
#include <thread>
#include <boost/filesystem.hpp>
const uintmax_t MAX_LOGS_SIZE = 10ull * 1024ull * 1024ull * 1024ull;
void create_folder(std::string folder_name) {
boost::filesystem::create_directory(folder_name);
std::string sub_foldername = folder_name + "/logs_ros";
boost::filesystem::create_directory(sub_foldername);
}
std::string get_current_time() {
auto now = std::chrono::system_clock::now();
std::time_t now_c = std::chrono::system_clock::to_time_t(now);
std::tm parts = *std::localtime(&now_c);
char buffer[20];
std::strftime(buffer, sizeof(buffer), "%Y-%m-%d-%H-%M", &parts);
return buffer;
}
void check_logs_size() {
std::string logs_path = "/home/sage/logs/";
boost::filesystem::path logs_dir(logs_path);
std::uintmax_t total_size = 0;
for (const auto& file : boost::filesystem::recursive_directory_iterator(logs_dir)) {
if (boost::filesystem::is_regular_file(file)) {
total_size += boost::filesystem::file_size(file);
}
}
if (total_size > MAX_LOGS_SIZE) {
boost::filesystem::path earliest_dir;
std::time_t earliest_time = std::time(nullptr);
for (const auto& dir : boost::filesystem::directory_iterator(logs_dir)) {
if (boost::filesystem::is_directory(dir)) {
std::string dir_name = dir.path().filename().string();
std::tm time_parts = {};
std::istringstream ss(dir_name);
std::string part;
std::getline(ss, part, '-');
time_parts.tm_year = std::stoi(part) - 1900;
std::getline(ss, part, '-');
time_parts.tm_mon = std::stoi(part) - 1;
std::getline(ss, part, '-');
time_parts.tm_mday = std::stoi(part);
std::getline(ss, part, '-');
time_parts.tm_hour = std::stoi(part);
std::getline(ss, part, '-');
time_parts.tm_min = std::stoi(part);
std::time_t dir_time = std::mktime(&time_parts);
if (dir_time < earliest_time) {
earliest_time = dir_time;
earliest_dir = dir.path();
}
}
}
if (!earliest_dir.empty()) {
boost::filesystem::remove_all(earliest_dir);
}
}
}
void timerCallback(const ros::TimerEvent& event) {
std::string logs_path = "/home/sage/logs/";
std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
std::time_t now_c = std::chrono::system_clock::to_time_t(now);
std::tm parts = *std::localtime(&now_c);
if (parts.tm_min % 10 == 0) {
std::string folder_name = logs_path + get_current_time();
create_folder(folder_name);
}
check_logs_size();
}
bool deleteLogsCallback(std_srvs::Empty::Request& req, std_srvs::Empty::Response& res) {
std::string logs_path = "/home/sage/logs/";
boost::filesystem::path logs_dir(logs_path);
boost::filesystem::remove_all(logs_dir);
return true;
}
int main(int argc, char** argv) {
ros::init(argc, argv, "log_manager_node");
ros::NodeHandle nh;
ros::Timer timer = nh.createTimer(ros::Duration(60.0), timerCallback);
ros::ServiceServer delete_logs_server = nh.advertiseService("delete_logs", deleteLogsCallback);
ros::spin();
return 0;
}
```
在这个节点中,我们定义了一个名为 `log_manager_node` 的ROS节点,并在其中实现了一个定时器和一个服务。定时器每隔60秒检查一次日志大小并创建新的日志文件夹,服务则用于删除所有日志文件。
for sensor_name, image in sensor2image.items(): print("-----sensor___name: ", sensor_name) if image.shape[0] > 720: image = cv2.resize(image, None, fx=0.6, fy=0.6) cv2.imshow(sensor_name, image) cv2.imshow("bev_img", vis_bev_img) #10 k = cv2.waitKey(0) syn_json_time=get_em_obs_json(vis_msg) # if args.em: # syn_json_time=get_em_obs_json(vis_msg) # show_json_file_content(file_name=syn_json_time) if k == 112: # p print(json.dumps({"vis": vis_msg["obstacles"]}, indent=4)) if k == 27: cv2.destroyAllWindows() break elif k == 114: # r idx += 5 elif k == 98: # b idx -= 5 elif k == 82: # <- idx -= 1 else: idx += 1 else: idx += 1这个代码中 syn_json_time随着按键的控制每次得到一个新的值,写一个函数,指定文件夹,根据 syn_json_time这个参数代表我要显示的json文件名,将这个json文件显示成一个界面,这个界面不会影响下面的按键控制显示的其他东西,随着这个参数的更新界面中的内容也会更新,不会影响代码的运行,也就是下面的按键也会影响 syn_json_time这个值的更新
可以写一个函数`display_json_file`,代码如下:
```
import json
import os
import cv2
def display_json_file(folder_path, json_file):
file_path = os.path.join(folder_path, json_file)
with open(file_path) as f:
data = json.load(f)
# 将 data 显示成界面
# ...
# 显示完毕后,可以继续按键控制,更新 syn_json_time 的值
while True:
k = cv2.waitKey(0)
if k == 27:
cv2.destroyAllWindows()
break
elif k == 114:
idx += 5
elif k == 98:
idx -= 5
elif k == 82:
idx -= 1
else:
idx += 1
syn_json_time = get_em_obs_json(vis_msg)
display_json_file(folder_path, syn_json_time)
```
在主函数中,可以将按下 "s" 键后的代码改成调用这个函数:
```
if k == 115: # s
display_json_file(folder_path, syn_json_time)
```
这样就可以实现按下 "s" 键后,根据 `syn_json_time` 的值显示对应的 json 文件。显示完毕后,可以继续按键控制,更新 `syn_json_time` 的值,然后再次调用这个函数,以显示新的 json 文件。