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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 <QVarLengthArray>
#include <QMutexLocker>
#include <QDateTime>
#include <QDir>
#include <sys/inotify.h>
#include <stropts.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <errno.h>
#include "smdirwatcher.h"
#include "smtreeitem.h"
#include "helper.h"
extern int errno;
SmDirWatcher::SmDirWatcher(QObject *parent) : QThread(parent), mFd(0), mDescr(0) {
mFd = inotify_init1(IN_NONBLOCK);
}
SmDirWatcher::~SmDirWatcher(){
if(mFd && mDescr){
inotify_rm_watch(mFd, mDescr);
}
}
void SmDirWatcher::setDir(const QString &dir){
QMutexLocker lock(&mWatchMx);
if(mDescr){
inotify_rm_watch(mFd, mDescr); //generates IN_IGNORE ???
}
/* 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_MODIFY | IN_MOVED_FROM | IN_MOVED_TO);
mCurrent = dir;
}
void SmDirWatcher::run(){
QMutexLocker lock(&mWatchMx);
QVarLengthArray<char, 4096> data(4096);
int r = read(mFd, data.data(), data.size());
int err = errno;
if(r < 0){
if(err != EAGAIN){
return;
}
r = read(mFd, data.data(), data.size());
}
// inspect data
char *at = data.data();
inotify_event *e = reinterpret_cast<inotify_event*>(at);
if(!e->len){
return;
}
char *end = at + data.size();
while(at < end){
if(e->mask & IN_IGNORED){
at += sizeof(inotify_event) + e->len;
continue;
}
quint32 mask = e->mask;
QString name = QString("%1/%2").arg(mCurrent).arg(e->name);
at += sizeof(inotify_event) + e->len;
if(mask & IN_CREATE){
emit dwEvent(name, Added);
return;
}
if(mask & IN_DELETE){
emit dwEvent(name, Deleted);
return;
}
if(mask & IN_CLOSE_WRITE || e->mask & IN_MODIFY){
emit dwEvent(name, Modified);
return;
}
if(mask & IN_MOVED_FROM || e->mask & IN_MOVED_TO){
emit needRefresh();
return;
}
}
}
SmDataGatherer::SmDataGatherer(const int numFields, QObject *parent) : QThread(parent), mNumFields(numFields) {}
void SmDataGatherer::setCurrent(const QString ¤t, int mode){
QMutexLocker lock(&mSetMx);
mCurrent = current;
mMode = mode;
}
void SmDataGatherer::run(){
QMutexLocker lock(&mRunMx);
QFileInfo fi(mCurrent);
if(fi.isDir()){
SmTreeItem *rv = populate();
emit population(rv);
return;
}
if(fi.isFile()){
QList<QVariant> fd = fileData(fi);
emit newData(fd, mMode);
}
}
SmTreeItem * SmDataGatherer::populate(){
SmTreeItem *retval = new SmTreeItem(mNumFields);
QDir d = QDir(mCurrent);
foreach(QFileInfo fi, d.entryInfoList()){
if(fi.fileName() == "."){
continue;
}
QList<QVariant> data = fileData(fi);
SmTreeItem *newItem = new SmTreeItem(data, retval);
retval->appendChild(newItem);
}
return retval;
}
const QList<QVariant> SmDataGatherer::fileData(const QFileInfo &fi) const{
QList<QVariant> data;
data << fi.fileName() << fi.size();
QString mime = Helper::mimeType(fi.absoluteFilePath());
data << mime;
data << fi.lastModified();
QList<QVariant> si = QList<QVariant>() << QVariant() << QVariant();
if(mime.startsWith("video")){
si = Helper::duration(fi.absoluteFilePath());
}
data << Helper::md5Sum(fi.absoluteFilePath());
data << si << fi.absoluteFilePath();
return data;
}
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