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authorKurt Zenker <kz@openoffice.org>2006-04-26 19:54:07 +0000
committerKurt Zenker <kz@openoffice.org>2006-04-26 19:54:07 +0000
commit45700a9c72bb07cf81904d81d1bc74df184b64cf (patch)
tree89210d6d9b2208b0df209918eb81fa3587079b46
parent83be49ca1970a26ddfee3cc58327ccfd5fa97d7d (diff)
INTEGRATION: CWS taskpane (1.1.2); FILE ADDED
2006/03/24 12:49:31 af 1.1.2.2: #i61115# Added OSL_TRACE debug code. 2006/02/17 12:09:50 af 1.1.2.1: #i61359# Initial revision.
-rw-r--r--sd/source/ui/tools/TimerBasedTaskExecution.cxx186
1 files changed, 186 insertions, 0 deletions
diff --git a/sd/source/ui/tools/TimerBasedTaskExecution.cxx b/sd/source/ui/tools/TimerBasedTaskExecution.cxx
new file mode 100644
index 000000000000..603ffe8b915a
--- /dev/null
+++ b/sd/source/ui/tools/TimerBasedTaskExecution.cxx
@@ -0,0 +1,186 @@
+/*************************************************************************
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * $RCSfile: TimerBasedTaskExecution.cxx,v $
+ *
+ * $Revision: 1.2 $
+ *
+ * last change: $Author: kz $ $Date: 2006-04-26 20:54:07 $
+ *
+ * The Contents of this file are made available subject to
+ * the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ * GNU Lesser General Public License Version 2.1
+ * =============================================
+ * Copyright 2005 by Sun Microsystems, Inc.
+ * 901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ ************************************************************************/
+
+#include "tools/TimerBasedTaskExecution.hxx"
+#include "tools/AsynchronousTask.hxx"
+
+#ifndef _TIME_HXX
+#include <tools/time.hxx>
+#endif
+#include <osl/diagnose.h>
+#include <boost/weak_ptr.hpp>
+
+#undef VERBOSE
+
+namespace sd { namespace tools {
+
+/** Used by the shared_ptr instead of the private destructor.
+*/
+class TimerBasedTaskExecution::Deleter
+{
+public:
+ void operator() (TimerBasedTaskExecution* pObject)
+ {
+ delete pObject;
+ }
+};
+
+
+
+
+::boost::shared_ptr<TimerBasedTaskExecution> TimerBasedTaskExecution::Create (
+ const ::boost::shared_ptr<AsynchronousTask>& rpTask,
+ sal_uInt32 nMillisecondsBetweenSteps,
+ sal_uInt32 nMaxTimePerStep)
+{
+ ::boost::shared_ptr<TimerBasedTaskExecution> pExecution(
+ new TimerBasedTaskExecution(rpTask,nMillisecondsBetweenSteps,nMaxTimePerStep),
+ Deleter());
+ // Let the new object have a shared_ptr to itself, so that it can
+ // release itself when the AsynchronousTask has been executed
+ // completely.
+ pExecution->SetSelf(pExecution);
+ return pExecution;
+}
+
+
+
+
+void TimerBasedTaskExecution::Release (void)
+{
+ maTimer.Stop();
+ mpSelf.reset();
+}
+
+
+
+
+//static
+void TimerBasedTaskExecution::ReleaseTask (
+ const ::boost::weak_ptr<TimerBasedTaskExecution>& rpExecution)
+{
+ if ( ! rpExecution.expired())
+ {
+ try
+ {
+ ::boost::shared_ptr<tools::TimerBasedTaskExecution> pExecution (rpExecution);
+ pExecution->Release();
+ }
+ catch (::boost::bad_weak_ptr)
+ {
+ // When a bad_weak_ptr has been thrown then the object pointed
+ // to by rpTask has been released right after we checked that it
+ // still existed. Too bad, but that means, that we have nothing
+ // more do.
+ }
+ }
+}
+
+
+
+
+TimerBasedTaskExecution::TimerBasedTaskExecution (
+ const ::boost::shared_ptr<AsynchronousTask>& rpTask,
+ sal_uInt32 nMillisecondsBetweenSteps,
+ sal_uInt32 nMaxTimePerStep)
+ : mpTask(rpTask),
+ maTimer(),
+ mpSelf(),
+ mnMaxTimePerStep(nMaxTimePerStep)
+{
+ Link aLink(LINK(this,TimerBasedTaskExecution,TimerCallback));
+ maTimer.SetTimeoutHdl(aLink);
+ maTimer.SetTimeout(nMillisecondsBetweenSteps);
+ maTimer.Start();
+}
+
+
+
+
+TimerBasedTaskExecution::~TimerBasedTaskExecution (void)
+{
+ maTimer.Stop();
+}
+
+
+
+
+void TimerBasedTaskExecution::SetSelf (
+ const ::boost::shared_ptr<TimerBasedTaskExecution>& rpSelf)
+{
+ if (mpTask.get() != NULL)
+ mpSelf = rpSelf;
+}
+
+
+
+
+IMPL_LINK(TimerBasedTaskExecution,TimerCallback, Timer*,pTimer)
+{
+ if (mpTask.get() != NULL)
+ if (mpTask->HasNextStep())
+ {
+ // Execute as many steps as fit into the time span of length
+ // mnMaxTimePerStep. Note that the last step may take longer
+ // than allowed.
+ sal_uInt32 nStartTime (Time().GetMSFromTime());
+#ifdef VERBOSE
+ OSL_TRACE("starting TimerBasedTaskExecution at %d", nStartTime);
+#endif
+ do
+ {
+ mpTask->RunNextStep();
+ sal_uInt32 nDuration (Time().GetMSFromTime()-nStartTime);
+#ifdef VERBOSE
+ OSL_TRACE("executed step in %d", nDuration);
+#endif
+ if (nDuration > mnMaxTimePerStep)
+ break;
+ }
+ while (mpTask->HasNextStep());
+#ifdef VERBOSE
+ OSL_TRACE("TimerBasedTaskExecution sleeping");
+#endif
+ maTimer.Start();
+ }
+ else
+ mpSelf.reset();
+
+ return 0;
+}
+
+
+} } // end of namespace ::sd::tools
+