free ring buffer

1 files changed, 3 insertions, 1 deletions

diff --git a/libkcal/icalformat.cpp b/libkcal/icalformat.cpp
index d9fe40b..5877406 100644
--- a/libkcal/icalformat.cpp
+++ b/libkcal/icalformat.cpp
@@ -1,460 +1,462 @@
 /*
     This file is part of libkcal.
     Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     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., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
 */
 
 #include <qdatetime.h>
 #include <qstring.h>
 #include <qptrlist.h>
 #include <qregexp.h>
 #include <qclipboard.h>
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qtextcodec.h>
 #include <stdlib.h>
 
 #include <kdebug.h>
 #include <kglobal.h>
 #include <klocale.h>
 
 extern "C" {
   #include <ical.h>
   #include <icalss.h>
   #include <icalparser.h>
   #include <icalrestriction.h>
 }
 
 #include "calendar.h"
 #include "calendarlocal.h"
 #include "journal.h"
 
 #include "icalformat.h"
 #include "icalformatimpl.h"
 
 #define _ICAL_VERSION "2.0"
 
 using namespace KCal;
 
 ICalFormat::ICalFormat( )
 {
    mImpl = new ICalFormatImpl( this );
    tzOffsetMin = 0;
    //qDebug("new ICalFormat() ");
 }
 
 ICalFormat::~ICalFormat()
 {
   delete mImpl; 
   //qDebug("delete ICalFormat ");
 }
 
 bool ICalFormat::load( Calendar *calendar, const QString &fileName)
 {
 
   clearException();
 
   QFile file( fileName );  
   if (!file.open( IO_ReadOnly ) ) {
     setException(new ErrorFormat(ErrorFormat::LoadError));
     return false;
   } 
   QTextStream ts( &file );
   QString text; 
 
   ts.setEncoding( QTextStream::Latin1 );
   text = ts.read(); 
   file.close();
 
   return fromString( calendar, text );
 }
 
 //#include <qdatetime.h>
 bool ICalFormat::save( Calendar *calendar, const QString &fileName )
 {
     //kdDebug(5800) << "ICalFormat::save(): " << fileName << endl;
     //qDebug("ICalFormat::save ");
   clearException();
   QString text = toString( calendar );
   //return false; 
   // qDebug("to string takes ms: %d ",is.elapsed() );
   if ( text.isNull() ) return false;
 
   // TODO: write backup file
   //is.restart();
   QFile file( fileName );
   if (!file.open( IO_WriteOnly ) ) {
     setException(new ErrorFormat(ErrorFormat::SaveError,
                  i18n("Could not open file '%1'").arg(fileName)));
     return false;
   }
   QTextStream ts( &file );
 
   ts.setEncoding( QTextStream::Latin1 );
   ts << text;
   file.close();
   //qDebug("saving file takes ms: %d ", is.elapsed() );
   return true;
 }
 
 bool ICalFormat::fromString( Calendar *cal, const QString &text )
 {
   setTimeZone( cal->timeZoneId(), !cal->isLocalTime() );
   // qDebug("ICalFormat::fromString tz: %s ", cal->timeZoneId().latin1());
   // Get first VCALENDAR component.
   // TODO: Handle more than one VCALENDAR or non-VCALENDAR top components
   icalcomponent *calendar;
 
   //calendar = icalcomponent_new_from_string( text.local8Bit().data());
   // good calendar = icalcomponent_new_from_string( text.utf8().data());
   calendar = icalcomponent_new_from_string( (char*)text.latin1());
   if (!calendar) {
     setException(new ErrorFormat(ErrorFormat::ParseErrorIcal));
     return false;
   }
 
   bool success = true;
 
   if (icalcomponent_isa(calendar) != ICAL_VCALENDAR_COMPONENT) {
     setException(new ErrorFormat(ErrorFormat::NoCalendar));
     success = false;
   } else {
     // put all objects into their proper places
     if ( !mImpl->populate( cal, calendar ) ) {
       if ( !exception() ) {
         setException(new ErrorFormat(ErrorFormat::ParseErrorKcal));
       } 
       success = false;
     } else
       mLoadedProductId = mImpl->loadedProductId();
   }
 
   icalcomponent_free( calendar );
+  icalmemory_free_ring();
 
   return success;
 }
 
 Incidence *ICalFormat::fromString( const QString &text )
 {
   CalendarLocal cal( mTimeZoneId );
   fromString(&cal, text);
   
   Incidence *ical = 0;
   QPtrList<Event> elist = cal.events();
   if ( elist.count() > 0 ) {
     ical = elist.first();
   } else {
     QPtrList<Todo> tlist = cal.todos();
     if ( tlist.count() > 0 ) {
       ical = tlist.first();
     } else {
       QPtrList<Journal> jlist = cal.journals();
       if ( jlist.count() > 0 ) {
         ical = jlist.first();
       }
     }
   }
   return ical;
 }
 #include <qapp.h>
 
 QString ICalFormat::toString( Calendar *cal )
 {
  
   setTimeZone( cal->timeZoneId(), !cal->isLocalTime() );
  
   icalcomponent *calendar = mImpl->createCalendarComponent(cal);
 
   icalcomponent *component;
  
   // todos 
   QPtrList<Todo> todoList = cal->rawTodos();
   QPtrListIterator<Todo> qlt(todoList);
   for (; qlt.current(); ++qlt) {
     component = mImpl->writeTodo(qlt.current());
     icalcomponent_add_component(calendar,component);
     //qDebug(" todos ");
     qApp->processEvents();
   }
   // events
   QPtrList<Event> events = cal->rawEvents();
   Event *ev;
   for(ev=events.first();ev;ev=events.next()) {
     component = mImpl->writeEvent(ev);
     icalcomponent_add_component(calendar,component);
     //qDebug("events ");
     qApp->processEvents();
   }
  
   // journals
   QPtrList<Journal> journals = cal->journals();
   Journal *j;
   for(j=journals.first();j;j=journals.next()) {
     component = mImpl->writeJournal(j);
     icalcomponent_add_component(calendar,component);
     //qDebug("journals ");
     qApp->processEvents(); 
   }
    const char *text; 
   QString ret =""; 
   text = icalcomponent_as_ical_string( calendar ); 
   qApp->processEvents(); 
 
   // text = "BEGIN:VCALENDAR\nPRODID\n :-//K Desktop Environment//NONSGML libkcal 3.1//EN\nVERSION\n :2.0\nBEGIN:VEVENT\nDTSTAMP\n :20031231T213514Z\nORGANIZER\n :MAILTO:lutz@putz.de\nCREATED\n :20031231T213513Z\nUID\n :libkcal-1295166342.120\nSEQUENCE\n :0\nLAST-MODIFIED\n :20031231T213513Z\nSUMMARY\n :test1\nCLASS\n :PUBLIC\nPRIORITY\n :3\nDTSTART\n :20040101T090000Z\nDTEND\n :20040101T110000Z\nTRANSP\n :OPAQUE\nEND:VEVENT\nEND:VCALENDAR\n";
 
 
    if ( text ) {
        ret = QString ( text );
    }
    icalcomponent_free( calendar );
 
   if (!text) { 
     setException(new ErrorFormat(ErrorFormat::SaveError,
                  i18n("libical error")));
+    icalmemory_free_ring();
     return QString::null;
   }
-
+  icalmemory_free_ring();
   return ret;
 }
 
 QString ICalFormat::toICalString( Incidence *incidence )
 {
   CalendarLocal cal( mTimeZoneId );
   cal.addIncidence( incidence->clone() );
   return toString( &cal );
 }
 
 QString ICalFormat::toString( Incidence *incidence )
 {
   icalcomponent *component;
 
   component = mImpl->writeIncidence( incidence );
 
   const char *text = icalcomponent_as_ical_string( component );
 
   icalcomponent_free( component );
 
   return QString::fromLocal8Bit( text );
 }
 
 QString ICalFormat::toString( Recurrence *recurrence )
 {
   icalproperty *property;
   property = mImpl->writeRecurrenceRule( recurrence );
   const char *text = icalproperty_as_ical_string( property );
   icalproperty_free( property );
   return QString::fromLocal8Bit( text );
 }
 /*
 bool ICalFormat::fromString( Recurrence * recurrence, const QString& rrule )
 {
   bool success = true;
   icalerror_clear_errno();
   struct icalrecurrencetype recur = icalrecurrencetype_from_string( rrule );
   if ( icalerrno != ICAL_NO_ERROR ) {
     kdDebug() << "Recurrence parsing error: " << icalerror_strerror( icalerrno ) << endl;
     success = false;
   }
 
   if ( success ) {
     mImpl->readRecurrence( recur, recurrence );
   }
 
   return success;
 }
 */
 
 QString ICalFormat::createScheduleMessage(IncidenceBase *incidence,
                                           Scheduler::Method method)
 {
   icalcomponent *message = mImpl->createScheduleComponent(incidence,method);
 
   QString messageText = icalcomponent_as_ical_string(message);
 
 
 
   return messageText;
 }
 
 ScheduleMessage *ICalFormat::parseScheduleMessage( Calendar *cal,
                                                    const QString &messageText )
 {
   setTimeZone( cal->timeZoneId(), !cal->isLocalTime() );
   clearException();
 
   if (messageText.isEmpty()) return 0;
 
   icalcomponent *message;
   message = icalparser_parse_string(messageText.local8Bit());
 
   if (!message) return 0;
 
   icalproperty *m = icalcomponent_get_first_property(message,
                                                      ICAL_METHOD_PROPERTY);
 
   if (!m) return 0;
 
   icalcomponent *c;
 
   IncidenceBase *incidence = 0;
   c = icalcomponent_get_first_component(message,ICAL_VEVENT_COMPONENT);
   if (c) {
     incidence = mImpl->readEvent(c);
   }
 
   if (!incidence) {
     c = icalcomponent_get_first_component(message,ICAL_VTODO_COMPONENT);
     if (c) {
       incidence = mImpl->readTodo(c);
     }
   }
 
   if (!incidence) {
     c = icalcomponent_get_first_component(message,ICAL_VFREEBUSY_COMPONENT);
     if (c) {
       incidence = mImpl->readFreeBusy(c);
     }
   }
 
   if (!incidence) {
     kdDebug() << "ICalFormat:parseScheduleMessage: object is not a freebusy, event or todo" << endl;
     return 0;
   }
 
   kdDebug(5800) << "ICalFormat::parseScheduleMessage() getting method..." << endl;
 
   icalproperty_method icalmethod = icalproperty_get_method(m);
   Scheduler::Method method;
 
   switch (icalmethod) {
     case ICAL_METHOD_PUBLISH:
       method = Scheduler::Publish;
       break;
     case ICAL_METHOD_REQUEST:
       method = Scheduler::Request;
       break;
     case ICAL_METHOD_REFRESH:
       method = Scheduler::Refresh;
       break;
     case ICAL_METHOD_CANCEL:
       method = Scheduler::Cancel;
       break;
     case ICAL_METHOD_ADD:
       method = Scheduler::Add;
       break;
     case ICAL_METHOD_REPLY:
       method = Scheduler::Reply;
       break;
     case ICAL_METHOD_COUNTER:
       method = Scheduler::Counter;
       break;
     case ICAL_METHOD_DECLINECOUNTER:
       method = Scheduler::Declinecounter;
       break;
     default:
       method = Scheduler::NoMethod;
       kdDebug(5800) << "ICalFormat::parseScheduleMessage(): Unknow method" << endl;
       break;
   }
 
 
   if (!icalrestriction_check(message)) {
     setException(new ErrorFormat(ErrorFormat::Restriction,
                                    Scheduler::translatedMethodName(method) + ": " +
                                    mImpl->extractErrorProperty(c)));
     return 0;
   }
 
   icalcomponent *calendarComponent = mImpl->createCalendarComponent(cal);
 
   Incidence *existingIncidence = cal->event(incidence->uid());
   if (existingIncidence) {
     // TODO: check, if cast is required, or if it can be done by virtual funcs.
     if (existingIncidence->typeID() == todoID ) {
       Todo *todo = static_cast<Todo *>(existingIncidence);
       icalcomponent_add_component(calendarComponent,
                                   mImpl->writeTodo(todo));
     }
     if (existingIncidence->typeID() == eventID ) {
       Event *event = static_cast<Event *>(existingIncidence);
       icalcomponent_add_component(calendarComponent,
                                   mImpl->writeEvent(event));
     }
   } else {
     calendarComponent = 0;
   }
   qDebug("icalclassify commented out ");
   ScheduleMessage::Status status;
 #if 0
 
   icalclass result = icalclassify(message,calendarComponent,(char *)"");
 
 
 
   switch (result) {
     case ICAL_PUBLISH_NEW_CLASS:
       status = ScheduleMessage::PublishNew;
       break;
     case ICAL_OBSOLETE_CLASS:
       status = ScheduleMessage::Obsolete;
       break;
     case ICAL_REQUEST_NEW_CLASS:
       status = ScheduleMessage::RequestNew;
       break;
     case ICAL_REQUEST_UPDATE_CLASS:
       status = ScheduleMessage::RequestUpdate;
       break;
     case ICAL_UNKNOWN_CLASS:
     default:
       status = ScheduleMessage::Unknown;
       break;
   }
 #endif
   status = ScheduleMessage::RequestUpdate;
   return new ScheduleMessage(incidence,method,status);
 }
 
 void ICalFormat::setTimeZone( const QString &id, bool utc )
 {
 
 
     mTimeZoneId = id;
     mUtc = utc;
 
     tzOffsetMin  = KGlobal::locale()->timezoneOffset(mTimeZoneId);
   
     //qDebug("ICalFormat::setTimeZoneOffset %s %d ",mTimeZoneId.latin1(),  tzOffsetMin);
 }
 
 QString ICalFormat::timeZoneId() const
 {
   return mTimeZoneId;
 }
 
 bool ICalFormat::utc() const
 {
   return mUtc;
 }
 int ICalFormat::timeOffset()
 {
     return tzOffsetMin;
 }
 const char *ICalFormat::tzString()
 {
     const char*  ret = (const char* ) mTzString;
     return ret;
 }