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/**
* @file llcoproceduremanager.cpp
* @author Rider Linden
* @brief Singleton class for managing asset uploads to the sim.
*
* $LicenseInfo:firstyear=2015&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2015, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "linden_common.h"
#include "llviewercontrol.h"
#include "llcoproceduremanager.h"
//=========================================================================
#define COROCOUNT 1
//=========================================================================
LLCoprocedureManager::LLCoprocedureManager():
LLSingleton<LLCoprocedureManager>(),
mPendingCoprocs(),
mShutdown(false),
mWakeupTrigger("CoprocedureManager", true),
mCoroMapping(),
mHTTPPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID)
{
// *TODO: Retrieve the actual number of concurrent coroutines fro gSavedSettings and
// clamp to a "reasonable" number.
for (int count = 0; count < COROCOUNT; ++count)
{
LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t httpAdapter =
LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t(
new LLCoreHttpUtil::HttpCoroutineAdapter("uploadPostAdapter", mHTTPPolicy));
std::string uploadCoro = LLCoros::instance().launch("LLCoprocedureManager::coprocedureInvokerCoro",
boost::bind(&LLCoprocedureManager::coprocedureInvokerCoro, this, httpAdapter));
mCoroMapping.insert(CoroAdapterMap_t::value_type(uploadCoro, httpAdapter));
}
mWakeupTrigger.post(LLSD());
}
LLCoprocedureManager::~LLCoprocedureManager()
{
shutdown();
}
//=========================================================================
void LLCoprocedureManager::shutdown(bool hardShutdown)
{
CoroAdapterMap_t::iterator it;
for (it = mCoroMapping.begin(); it != mCoroMapping.end(); ++it)
{
if (!(*it).first.empty())
{
if (hardShutdown)
{
LLCoros::instance().kill((*it).first);
}
}
if ((*it).second)
{
(*it).second->cancelYieldingOperation();
}
}
mShutdown = true;
mCoroMapping.clear();
mPendingCoprocs.clear();
}
//=========================================================================
LLUUID LLCoprocedureManager::enqueueCoprocedure(const std::string &name, LLCoprocedureManager::CoProcedure_t proc)
{
LLUUID id(LLUUID::generateNewID());
mPendingCoprocs.push_back(QueuedCoproc::ptr_t(new QueuedCoproc(name, id, proc)));
LL_INFOS() << "Coprocedure(" << name << ") enqueued with id=" << id.asString() << LL_ENDL;
mWakeupTrigger.post(LLSD());
return id;
}
void LLCoprocedureManager::cancelCoprocedure(const LLUUID &id)
{
// first check the active coroutines. If there, remove it and return.
ActiveCoproc_t::iterator itActive = mActiveCoprocs.find(id);
if (itActive != mActiveCoprocs.end())
{
LL_INFOS() << "Found and canceling active coprocedure with id=" << id.asString() << LL_ENDL;
(*itActive).second->cancelYieldingOperation();
mActiveCoprocs.erase(itActive);
return;
}
for (CoprocQueue_t::iterator it = mPendingCoprocs.begin(); it != mPendingCoprocs.end(); ++it)
{
if ((*it)->mId == id)
{
LL_INFOS() << "Found and removing queued coroutine(" << (*it)->mName << ") with Id=" << id.asString() << LL_ENDL;
mPendingCoprocs.erase(it);
return;
}
}
LL_INFOS() << "Coprocedure with Id=" << id.asString() << " was not found." << LL_ENDL;
}
//=========================================================================
void LLCoprocedureManager::coprocedureInvokerCoro(LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t httpAdapter)
{
LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);
while (!mShutdown)
{
waitForEventOn(mWakeupTrigger);
if (mShutdown)
break;
while (!mPendingCoprocs.empty())
{
QueuedCoproc::ptr_t coproc = mPendingCoprocs.front();
mPendingCoprocs.pop_front();
mActiveCoprocs.insert(ActiveCoproc_t::value_type(coproc->mId, httpAdapter));
LL_INFOS() << "Dequeued and invoking coprocedure(" << coproc->mName << ") with id=" << coproc->mId.asString() << LL_ENDL;
try
{
coproc->mProc(httpAdapter, coproc->mId);
}
catch (std::exception &e)
{
LL_WARNS() << "Coprocedure(" << coproc->mName << ") id=" << coproc->mId.asString() <<
" threw an exception! Message=\"" << e.what() << "\"" << LL_ENDL;
}
catch (...)
{
LL_WARNS() << "A non std::exception was thrown from " << coproc->mName << " with id=" << coproc->mId << "." << LL_ENDL;
}
LL_INFOS() << "Finished coprocedure(" << coproc->mName << ")" << LL_ENDL;
ActiveCoproc_t::iterator itActive = mActiveCoprocs.find(coproc->mId);
if (itActive != mActiveCoprocs.end())
{
mActiveCoprocs.erase(itActive);
}
}
}
}
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