140 lines
3.4 KiB
C++
Executable File
140 lines
3.4 KiB
C++
Executable File
#include "Tool.h"
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#include "QTimer"
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#include <QDebug>
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#include <QDir>
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#include <QElapsedTimer>
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#include <QFileInfo>
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#include <QProcess>
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#ifdef Q_OS_WIN
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#include <QStorageInfo>
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#endif
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Tool::Tool()
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{
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}
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/**
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* @brief 获取文件列表
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*/
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QStringList Tool::getFileList(QString path)
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{
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QStringList fileList;
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QDir dir(path);
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if (!dir.exists()) {
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qDebug() << QString("dir %1 do not exsit...").arg(path);
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return fileList;
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}
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dir.setFilter(QDir::Files);
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dir.setSorting(QDir::Name);
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QStringList nameFilters;
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nameFilters << "*.mp4";
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dir.setNameFilters(nameFilters);
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fileList = dir.entryList();
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return fileList;
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}
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/**
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* @brief 删除文件或文件夹
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*/
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bool Tool::removeFile(QString path)
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{
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QFileInfo info(path);
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if (!info.exists()) {
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qDebug() << path << "do not exsit";
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return false;
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}
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if (info.isFile()) {
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QFile file(path);
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file.remove();
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qDebug() << "remove file" << path << "success";
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return true;
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} else if (info.isDir()) {
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QDir dir(path);
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dir.removeRecursively();
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qDebug() << "remove dir" << path << "success";
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return true;
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}
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qDebug() << path << "is not file or dir";
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return false;
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}
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/**
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* @brief 另外开启一个进程，使用linux命令行工具
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* @param path 命令
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*/
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#ifdef Q_OS_UNIX
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QString Tool::writeCom(QString path)
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{
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QProcess proc;
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QStringList argList;
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argList << "-c" << path;
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proc.start("/bin/sh", argList);
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// 等待进程启动
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proc.waitForFinished();
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proc.waitForReadyRead();
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// 从控制台读取数据
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QByteArray procOutput = proc.readAll();
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proc.close();
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return QString(procOutput);
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}
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#endif
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/**
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* @brief 获取磁盘的可用空间
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* @param mountedPath 磁盘挂载位置
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*/
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int64_t Tool::getAvailableStorage(QString mountedPath)
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{
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#ifdef Q_OS_UNIX
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// 使用linux命令获取磁盘挂载信息
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QString mountInfo = writeCom(QString("df %1").arg(mountedPath));
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// 解析挂载信息获取可用磁盘大侠
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// "Filesystem 1K-blocks Used Available Use% Mounted on\n/dev/sda 487110880 45112 462630056 0% /root/usb\n"
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QString diskInfo = mountInfo.split("\n")[1];
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QStringList list = diskInfo.split(" ");
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int index = -1;
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int64_t used;
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int64_t available;
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for (int i = 0; i < list.length(); i++) {
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QString s = list.at(i).trimmed();
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if (s.isEmpty())
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continue;
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index += 1;
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if (index == 2)
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used = s.toLong();
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else if (index == 3)
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available = s.toLong();
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}
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qDebug() << QString("%1: used %2 bytes, available %3 bytes")
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.arg(mountedPath)
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.arg(used)
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.arg(available);
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return available;
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#endif
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#ifdef Q_OS_WIN
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QList<QStorageInfo> list = QStorageInfo::mountedVolumes();
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for (QStorageInfo& info : list) {
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if (info.rootPath() == mountedPath) {
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int64_t available = info.bytesAvailable();
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return available;
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}
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}
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return 0;
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#endif
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}
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/**
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* @brief 获取代码块运行的时间
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* @param callback
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* @return
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*/
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double Tool::getCostTime(std::function<void(void)> callback, const char* callbackName)
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{
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QElapsedTimer mstimer;
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mstimer.start();
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callback();
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double time = (double)mstimer.nsecsElapsed() / (double)1000000;
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qDebug() << callbackName << "cast time:" << time << "ms";
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return time;
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} |