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// **********************************************************************
//
// Copyright (c) 2002
// ZeroC, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#include <Glacier/Missive.h>
using namespace std;
using namespace Ice;
using namespace Glacier;
Glacier::Missive::Missive(const ObjectPrx& proxy, const vector<Byte>& inParams, const Current& current,
bool forwardContext) :
_proxy(proxy),
_inParams(inParams),
_current(current),
_forwardContext(forwardContext)
{
Context::const_iterator p = current.ctx.find("_ovrd");
if(p != current.ctx.end())
{
_override = p->second;
}
}
void
Glacier::Missive::invoke()
{
std::vector<Byte> dummy;
if(_forwardContext)
{
_proxy->ice_invoke(_current.operation, _current.mode, _inParams, dummy, _current.ctx);
}
else
{
_proxy->ice_invoke(_current.operation, _current.mode, _inParams, dummy);
}
}
bool
Glacier::Missive::override(const MissivePtr& other)
{
if(_override.empty() || other->_override.empty())
{
return false;
}
return _override == other->_override;
}
const ObjectPrx&
Glacier::Missive::getProxy() const
{
return _proxy;
}
const Current&
Glacier::Missive::getCurrent() const
{
return _current;
}
Glacier::MissiveQueue::MissiveQueue(const Ice::CommunicatorPtr& communicator, int traceLevel, bool reverse,
const IceUtil::Time& sleepTime) :
_communicator(communicator),
_logger(communicator->getLogger()),
_traceLevel(traceLevel),
_reverse(reverse),
_sleepTime(sleepTime),
_destroy(false)
{
}
Glacier::MissiveQueue::~MissiveQueue()
{
assert(_destroy);
assert(_missives.empty());
assert(!_communicator);
}
void
Glacier::MissiveQueue::destroy()
{
IceUtil::Monitor<IceUtil::Mutex>::Lock lock(*this);
_destroy = true;
_missives.clear();
_communicator = 0;
_logger = 0;
notify();
}
void
Glacier::MissiveQueue::add(const MissivePtr& missive)
{
assert(missive);
IceUtil::Monitor<IceUtil::Mutex>::Lock lock(*this);
assert(!_destroy);
if(_missives.empty())
{
notify();
}
for(std::vector<MissivePtr>::iterator p = _missives.begin(); p != _missives.end(); ++p)
{
if(missive->override(*p))
{
*p = missive; // Replace old missive if this is an override.
return;
}
}
_missives.push_back(missive); // No override, add new missive.
}
void
Glacier::MissiveQueue::run()
{
while(true)
{
vector<ObjectPrx> proxies;
{
IceUtil::Monitor<IceUtil::Mutex>::Lock lock(*this);
while(!_destroy && _missives.empty())
{
wait();
}
if(_destroy)
{
return;
}
proxies.reserve(_missives.size());
vector<MissivePtr>::const_iterator p;
for(p = _missives.begin(); p != _missives.end(); ++p)
{
try
{
const ObjectPrx& proxy = (*p)->getProxy();
const Current& current = (*p)->getCurrent();
if(_traceLevel >= 2)
{
Trace out(_logger, "Glacier");
if(_reverse)
{
out << "reverse ";
}
out << "batch routing to:\n"
<< "proxy = " << _communicator->proxyToString(proxy) << '\n'
<< "operation = " << current.operation << '\n'
<< "mode = " << current.mode;
}
(*p)->invoke();
proxies.push_back(proxy);
}
catch(const Ice::Exception& ex)
{
if(_traceLevel >= 1)
{
Trace out(_logger, "Glacier");
if(_reverse)
{
out << "reverse ";
}
out << "batch routing exception:\n" << ex;
}
}
}
_missives.clear();
}
//
// Flush and sleep outside the thread synchronization, so that
// new messages can be added to this missive queue while this
// thread sends a batch and sleeps.
//
try
{
//
// This sends all batched missives.
//
// sort(proxies.begin(), proxies.end());
// proxies.erase(unique(proxies.begin(), proxies.end()), proxies.end());
vector<ObjectPrx>::const_iterator p;
for(p = proxies.begin(); p != proxies.end(); ++p)
{
(*p)->ice_flush();
}
//
// In order to avoid flooding the missive receivers, we add
// a delay between sending missives.
//
if(_sleepTime > IceUtil::Time())
{
IceUtil::ThreadControl::sleep(_sleepTime);
}
}
catch(const Ice::Exception& ex)
{
IceUtil::Monitor<IceUtil::Mutex>::Lock lock(*this);
if(_traceLevel >= 1)
{
Trace out(_logger, "Glacier");
if(_reverse)
{
out << "reverse ";
}
out << "batch routing exception:\n" << ex;
}
}
}
}
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