kmthreadjob.cpp

/*
 *  This file is part of the KDE libraries
 *  Copyright (c) 2001 Michael Goffioul <tdeprint@swing.be>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License version 2 as published by the Free Software Foundation.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 **/
 
#include "kmthreadjob.h"
#include "kmjob.h"
#include "kmjobmanager.h"
 
#include <tqfile.h>
#include <tqtextstream.h>
#include <tqstringlist.h>
#include <tdestandarddirs.h>
 
#include <errno.h>
#include <sys/types.h>
#include <signal.h>
 
#define CHARSEP '$'
 
KMThreadJob::KMThreadJob(TQObject *parent, const char *name)
: TQObject(parent,name)
{
    m_jobs.setAutoDelete(true);
}
 
KMThreadJob::~KMThreadJob()
{
}
 
TQString KMThreadJob::jobFile()
{
    TQString    f = locateLocal("data","tdeprint/printjobs");
    return f;
}
 
bool KMThreadJob::saveJobs()
{
    TQFile  f(jobFile());
    if (f.open(IO_WriteOnly))
    {
        TQTextStream    t(&f);
        TQIntDictIterator<KMJob>    it(m_jobs);
        for (;it.current();++it)
            t << it.current()->id() << CHARSEP << it.current()->name() << CHARSEP << it.current()->printer() << CHARSEP << it.current()->owner() << CHARSEP << it.current()->size() << endl;
        return true;
    }
    return false;
}
 
bool KMThreadJob::loadJobs()
{
    TQFile  f(jobFile());
    if (f.exists() && f.open(IO_ReadOnly))
    {
        TQTextStream    t(&f);
        TQString        line;
 
        m_jobs.clear();
        while (!t.eof())
        {
            line = t.readLine().stripWhiteSpace();
            if (line.isEmpty())
                continue;
            TQStringList    ll = TQStringList::split(CHARSEP,line,true);
            if (ll.count() == 5)
            {
                KMJob   *job = new KMJob();
                job->setId(ll[0].toInt());
                job->setName(ll[1]);
                job->setPrinter(ll[2]);
                job->setOwner(ll[3]);
                job->setSize(ll[4].toInt());
                job->setState(KMJob::Printing);
                job->setType(KMJob::Threaded);
                job->setUri("proc:/"+ll[0]);
                if (job->id() > 0 && checkJob(job->id()))
                    m_jobs.insert(job->id(),job);
                else
                    delete job;
            }
        }
        return true;
    }
    return false;
}
 
bool KMThreadJob::checkJob(int ID)
{
    return (kill((pid_t)ID,0) == 0 || errno == EPERM);
}
 
KMJob* KMThreadJob::findJob(int ID)
{
    return m_jobs.find(ID);
}
 
KMJob* KMThreadJob::findJob(const TQString& uri)
{
    if (uri.startsWith("proc:/"))
    {
        int pid = uri.mid(6).toInt();
        if (pid > 0)
            return m_jobs.find(pid);
    }
    return NULL;
}
 
bool KMThreadJob::removeJob(int ID)
{
    if (!checkJob(ID) || kill((pid_t)ID, SIGTERM) == 0)
    {
        m_jobs.remove(ID);
        saveJobs();
        return true;
    }
    else
        return false;
}
 
void KMThreadJob::createJob(int ID, const TQString& printer, const TQString& name, const TQString& owner, int size)
{
    KMThreadJob mth(0);
    KMJob   *job = new KMJob();
    job->setId(ID);
    job->setPrinter(printer);
    job->setName(name);
    job->setOwner(owner);
    job->setSize(size);
    job->setType(KMJob::Threaded);
    mth.createJob(job);
}
 
void KMThreadJob::createJob(KMJob *job)
{
    if (job->id() > 0)
    {
        loadJobs();
        if (!m_jobs.find(job->id()))
        {
            m_jobs.insert(job->id(),job);
            saveJobs();
        }
    }
}
 
void KMThreadJob::updateManager(KMJobManager *mgr)
{
    loadJobs();
    TQIntDictIterator<KMJob>    it(m_jobs);
    for (;it.current();++it)
    {
        KMJob   *job = new KMJob(*(it.current()));
        mgr->addJob(job);
    }
}