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/*
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version
2 of the License, or (at your option) any later version.
*/
#include <QDateTime>
#include <QDir>
#include <QImage>
#include <QProgressDialog>
#include <QApplication>
#include <sys/inotify.h>
#include <unistd.h>
#include <poll.h>
#include "smdirmodel.h"
#include "smdirwatcher.h"
#include "smtreeitem.h"
#include "helper.h"
#include "smglobals.h"
SmDirWatcher::SmDirWatcher(int numFields, QObject *parent) : QThread(parent), mFd(0), mDescr(0), mNumFields(numFields), mExpensiveOps(true) {
mBufLen = 1024 * (sizeof(struct inotify_event) + 16);
mINdata = new char[mBufLen];
mFd = inotify_init();
mDb = QSqlDatabase::cloneDatabase(QSqlDatabase::database("treedb"), "dirwatcherdb");
mDb.open();
}
void SmDirWatcher::setDir(const QString &dir){
if(mDescr){
inotify_rm_watch(mFd, mDescr); //generates IN_IGNORE ???
}
mCurrent = dir;
QDir d(mCurrent);
qApp->setOverrideCursor(Qt::WaitCursor);
SmTreeItem *rootItem = new SmTreeItem(mNumFields);
for(uint i = 0; i < d.count(); ++i){
QFileInfo fi = d.entryInfoList().at(i);
if(fi.fileName() == "." || fi.fileName() == ".."){
continue;
}
QList<QVariant> data = generalData(fi.absoluteFilePath());
SmTreeItem *newItem = new SmTreeItem(data, rootItem);
rootItem->appendChild(newItem);
}
emit population(rootItem);
/* mask rationale:
* IN_DELETE_SELF cannot happen since we're only
* watching one directory at all time.
* We don't care about the other events
*/
mDescr = inotify_add_watch(mFd, qPrintable(dir), IN_CLOSE_WRITE | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO);
qApp->restoreOverrideCursor();
}
void SmDirWatcher::setExpensiveOps(bool expensiveOps){
mExpensiveOps = expensiveOps;
}
QList<QVariant> SmDirWatcher::generalData(const QString &path){
QFileInfo fi(path);
QList<QVariant> data;
data << fi.fileName() << fi.size();
QString mime = Helper::mimeType(fi.absoluteFilePath());
data << mime;
data << fi.lastModified();
QString md5;
if(mExpensiveOps){
md5 = Helper::md5Sum(path);
data << md5;
if(mime.startsWith("video")){
QVariantMap m = Helper::ffmpegData(fi.absoluteFilePath());
data << m.value("duration") << m.value("bit_rate");
}else if(mime.startsWith("image")){
if(fi.size() > 1024*400){ //skip images bigger than 300 kb
data << "skipped" << QVariant();
}else{
QVariant picSize = Helper::picSize(fi.absoluteFilePath());
data << picSize << QVariant();
}
}else{
data << QVariant() << QVariant();
}
data << fi.absoluteFilePath();
int present = presenceData(md5);
data << present;
}else{
data << QVariant() << QVariant() << QVariant() << fi.absoluteFilePath() << SmDirModel::InNone;
}
return data;
}
int SmDirWatcher::presenceData(QString &md5){
int retval = SmDirModel::InNone;
QSqlQuery present1Q(mDb);
present1Q.prepare("SELECT COUNT(*) FROM files WHERE cmd5sum = :md5");
present1Q.bindValue(":md5", md5);
if(!present1Q.exec()){
mDb.close();
mDb.open();
return SmDirModel::InNone;
}
while(present1Q.next()){
int c = present1Q.value(0).toInt();
if(c > 0){
retval = SmDirModel::InFiles;
}
}
QSqlQuery present2Q(mDb);
present2Q.prepare("SELECT COUNT(*) from files_origin WHERE cmd5sum = :md5");
present2Q.bindValue(":md5", md5);
present2Q.exec();
while(present2Q.next()){
int c = present2Q.value(0).toInt();
if(c > 0){
retval = SmDirModel::InOrigin;
}
}
QSqlQuery present3Q(mDb);
present3Q.prepare("SELECT COUNT(*) FROM pics WHERE cmd5sum = :md5");
present3Q.bindValue(":md5", md5);
present3Q.exec();
while(present3Q.next()){
int c = present3Q.value(0).toInt();
if(c > 0){
retval = SmDirModel::InPictures;
}
}
return retval;
}
void SmDirWatcher::run(){
struct pollfd pfd[1];
pfd[0].fd = mFd;
pfd[0].events = POLLIN;
pfd[0].revents = 0;
int pr = poll(pfd, 1, 0);
if(pr <= 0){
return;
}
int r = read(mFd, mINdata, mBufLen);
if(r <= 0){
return;
}
int i = 0;
while(i < r){
inotify_event *e = reinterpret_cast<inotify_event*>(&mINdata[i]);
if((!e->len) || (e->mask & IN_IGNORED)){
i += sizeof(inotify_event) + e->len;
continue;
}
quint32 mask = e->mask;
QString name = QString("%1/%2").arg(mCurrent).arg(e->name);
QList<QVariant> d = generalData(name);
if(mask & IN_CREATE || mask & IN_MOVED_TO){
emit newData(d, Added);
}else if(mask & IN_DELETE || mask & IN_MOVED_FROM){
emit newData(d, Deleted);
}else if(mask & IN_CLOSE_WRITE){
emit newData(d, CloseWrite);
}
i += sizeof(inotify_event) + e->len;
}
}
void SmDirWatcher::stop(){
quit();
wait();
}
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