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arts/mcop/flowsystem.cc

181 lines
4.5 KiB

/*
Copyright (C) 2000 Stefan Westerfeld
stefan@space.twc.de
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 "flowsystem.h"
#include "debug.h"
using namespace Arts;
//-------------- ScheduleNode -----------------
ScheduleNode::ScheduleNode(Object_base *object) : _nodeObject(object)
{
//
}
ScheduleNode::~ScheduleNode()
{
//
}
Object ScheduleNode::nodeObject()
{
assert(_nodeObject);
return Object::_from_base(_nodeObject->_copy());
}
RemoteScheduleNode *ScheduleNode::remoteScheduleNode()
{
return 0;
}
void *ScheduleNode::cast(const std::string&)
{
return 0;
}
//----------- RemoteScheduleNode -------------
RemoteScheduleNode::RemoteScheduleNode(Object_stub *stub) : ScheduleNode(stub)
{
//
}
RemoteScheduleNode *RemoteScheduleNode::remoteScheduleNode()
{
return this;
}
void RemoteScheduleNode::initStream(const std::string&, void *, long)
{
// not for stub objects
assert(false);
}
void RemoteScheduleNode::requireFlow()
{
// stub objects can't require flow on this server (they don't live here)
assert(false);
}
void RemoteScheduleNode::virtualize(const std::string&, ScheduleNode *,
const std::string&)
{
// (de)virtualization of ports is only implemented locally
assert(false);
}
void RemoteScheduleNode::devirtualize(const std::string&, ScheduleNode *,
const std::string&)
{
// (de)virtualization of ports is only implemented locally
assert(false);
}
// interface to modify the node from outside
void RemoteScheduleNode::start()
{
FlowSystem remoteFs = nodeObject()._flowSystem();
arts_return_if_fail(!remoteFs.isNull());
remoteFs.startObject(nodeObject());
}
void RemoteScheduleNode::stop()
{
FlowSystem remoteFs = nodeObject()._flowSystem();
arts_return_if_fail(!remoteFs.isNull());
remoteFs.stopObject(nodeObject());
}
void RemoteScheduleNode::connect(const std::string& port,
ScheduleNode *remoteNode,
const std::string& remotePort)
{
arts_return_if_fail(remoteNode != 0);
FlowSystem fs = nodeObject()._flowSystem();
arts_return_if_fail(!fs.isNull());
AttributeType flags = fs.queryFlags(nodeObject(),port);
arts_return_if_fail(flags != 0);
// connectObject must be called as connectObject([sourcePort], [destPort]);
if(flags & streamOut) // if our port is an output port, this order
{
fs.connectObject(nodeObject(),port,remoteNode->nodeObject(),remotePort);
}
else if(flags & streamIn)
{
FlowSystem remoteFs = remoteNode->nodeObject()._flowSystem();
arts_return_if_fail(!remoteFs.isNull());
remoteFs.connectObject(remoteNode->nodeObject(),
remotePort,nodeObject(),port);
} else {
assert(false);
}
}
void RemoteScheduleNode::disconnect(const std::string& port,
ScheduleNode *remoteNode,
const std::string& remotePort)
{
arts_return_if_fail(remoteNode != 0);
FlowSystem fs = nodeObject()._flowSystem();
arts_return_if_fail(!fs.isNull());
AttributeType flags = fs.queryFlags(nodeObject(),port);
arts_return_if_fail(flags != 0);
// connectObject must be called as connectObject([sourcePort], [destPort]);
if(flags & streamOut) // if our port is an output port, this order
{
fs.disconnectObject(nodeObject(),port,remoteNode->nodeObject(),remotePort);
}
else if(flags & streamIn)
{
FlowSystem remoteFs = remoteNode->nodeObject()._flowSystem();
arts_return_if_fail(!remoteFs.isNull());
remoteFs.disconnectObject(remoteNode->nodeObject(),
remotePort,nodeObject(),port);
} else {
assert(false);
}
}
// constant values
void RemoteScheduleNode::setFloatValue(const std::string& port, float value)
{
FlowSystem fs = nodeObject()._flowSystem();
arts_return_if_fail(!fs.isNull());
fs.setFloatValue(nodeObject(), port, value);
}