ukui-search/index/inotify.cpp

#include "inotify.h"

InotifyManagerRefact::InotifyManagerRefact(const QString& path) : Traverse_BFS(path)
{
//    dirPath = new QMap<QString, QStringList>();
    m_fd = inotify_init();
    qDebug() << "m_fd----------->" <<m_fd;
    num2string.insert(IN_ACCESS, "IN_ACCESS");
    num2string.insert(IN_MODIFY, "IN_MODIFY");
    num2string.insert(IN_ATTRIB, "IN_ATTRIB");
    num2string.insert(IN_CLOSE_WRITE, "IN_CLOSE_WRITE");
    num2string.insert(IN_CLOSE_NOWRITE, "IN_CLOSE_NOWRITE");
    num2string.insert(IN_CLOSE, "IN_CLOSE");
    num2string.insert(IN_OPEN, "IN_OPEN");
    num2string.insert(IN_MOVED_FROM, "IN_MOVED_FROM");
    num2string.insert(IN_MOVED_TO, "IN_MOVED_TO");
    num2string.insert(IN_MOVE, "IN_MOVE");
    num2string.insert(IN_CREATE, "IN_CREATE");
    num2string.insert(IN_DELETE, "IN_DELETE");
    num2string.insert(IN_DELETE_SELF, "IN_DELETE_SELF");
    num2string.insert(IN_MOVE_SELF, "IN_MOVE_SELF");
    num2string.insert(IN_UNMOUNT, "IN_UNMOUNT");
    num2string.insert(IN_Q_OVERFLOW, "IN_Q_OVERFLOW");
    num2string.insert(IN_IGNORED, "IN_IGNORED");
    this->mlm = new MessageListManager();
    return;

}

InotifyManagerRefact::~InotifyManagerRefact(){
    delete this->mlm;
    this->mlm = nullptr;
//    delete dirPath;
//    dirPath = nullptr;
}

void InotifyManagerRefact::DoSomething(const QFileInfo& fileInfo){
    this->mlm->AddMessage(QVector<QString>() << fileInfo.fileName() << fileInfo.absoluteFilePath() << QString(bool((fileInfo.isDir()))));
    if(fileInfo.isDir()){
        this->AddWatch(fileInfo.absoluteFilePath());
    }
}

bool InotifyManagerRefact::AddWatch(const QString &path){
    //m_fd = inotify_init();
//    qDebug() << "m_fd: " <<m_fd;
    //int ret = inotify_add_watch(m_fd, path.toStdString().c_str(), IN_ALL_EVENTS);
    int ret = inotify_add_watch(m_fd, path.toStdString().c_str(), (IN_MOVED_FROM | IN_MOVED_TO | IN_CREATE | IN_DELETE));
    if (ret == -1) {
        qDebug() << "AddWatch error:" << path;
        return false;
    }
    currentPath[ret] = path;
    //qDebug() << "Watch:" << path;
    return true;
}

bool InotifyManagerRefact::RemoveWatch(const QString &path){
    int ret = inotify_rm_watch(m_fd, currentPath.key(path));
    if (ret){
        qDebug() << "remove path error";
        return false;
    }
//    qDebug() << "remove path: " << path;

    for (QMap<int, QString>::Iterator i = currentPath.begin(); i != currentPath.end();){
        if (i.value().length() > path.length()){
            if (i.value().mid(0, path.length()) == path){
                qDebug() << i.value();
                /*--------------------------------*/
                //在此调用删除索引
//                IndexGenerator::getInstance()->deleteAllIndex(new QStringList(path));
                /*--------------------------------*/
                currentPath.erase(i++);
            }
            else{
                i++;
            }
        }
        else{
            i++;
        }
    }
    qDebug() << path;
    //这个貌似不用删，先mark一下
    //currentPath.remove(currentPath.key(path));
    return true;
}

void InotifyManagerRefact::run(){

    char * p;
    char buf[BUF_LEN] __attribute__((aligned(8)));

    ssize_t numRead;

    for (;;) { /* Read events forever */
        numRead = read(m_fd, buf, BUF_LEN);
        if (numRead == 0) {
            qDebug() << "read() from inotify fd returned 0!";
        }
        if (numRead == -1) {
            qDebug() << "read";
        }
        qDebug() << "Read " << numRead << " bytes from inotify fd";

        /* Process all of the events in buffer returned by read() */

        for (p = buf; p < buf + numRead;) {
            struct inotify_event * event = reinterpret_cast<inotify_event *>(p);
            if(event->name[0] != '.'){
//            if(true){
                //这个位运算不要在意，只是懒得把文件夹、文件和事件排列组合了,只是看一下事件的类型
                qDebug() << "Read Event: " << num2string[(event->mask & 0x0000ffff)] << currentPath[event->wd] << QString(event->name) << event->cookie << event->wd;
                //num2string[event->mask & 0x0000ffff]
//                IndexGenerator::getInstance()->creatAllIndex(new QStringList(currentPath[event->wd] + event->name));

                /*--------------------------------*/

                //传创建或移动过来的文件路径
                if((event->mask & IN_CREATE) | (event->mask & IN_MOVED_TO)){
                    //添加监视要先序遍历，先添加top节点
                    if (event->mask & IN_ISDIR){
                        AddWatch(currentPath[event->wd] + '/' + event->name);
                        this->setPath(currentPath[event->wd] + '/' + event->name);
                        Traverse();
                    }
//                    else {

                        //IndexGenerator::getInstance()->creatAllIndex(new QStringList(currentPath[event->wd] + '/' + event->name));
                        this->mlm->AddMessage(QVector<QString>() << event->name << (currentPath[event->wd] + '/' + event->name) << QString(bool((event->mask & IN_ISDIR))));
                        this->mlm->SendMessage();
//                    }
                }
                else if((event->mask & IN_DELETE) | (event->mask & IN_MOVED_FROM)){
                    if (event->mask & IN_ISDIR){
                        RemoveWatch(currentPath[event->wd] + '/' + event->name);
                    }
//                    else {
                        //这里调用删除索引
                        this->mlm->AddMessage(QVector<QString>() << event->name << (currentPath[event->wd] + '/' + event->name) << QString(bool((event->mask & IN_ISDIR))));
                        this->mlm->SendDeleteMessage();
//                        IndexGenerator::getInstance()->deleteAllIndex(new QStringList(currentPath[event->wd] + '/' + event->name));
//                    }
                }
                /*--------------------------------*/
            }
            p += sizeof(struct inotify_event) + event->len;
        }
    }
}