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/**
* @file llappcorehttp.cpp
* @brief
*
* $LicenseInfo:firstyear=2012&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2012-2013, 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 "llappcorehttp.h"
#include "llviewercontrol.h"
const F64 LLAppCoreHttp::MAX_THREAD_WAIT_TIME(10.0);
LLAppCoreHttp::LLAppCoreHttp()
: mRequest(NULL),
mStopHandle(LLCORE_HTTP_HANDLE_INVALID),
mStopRequested(0.0),
mStopped(false),
mPolicyDefault(-1),
mPolicyTexture(-1),
mPolicyMesh(-1)
{}
LLAppCoreHttp::~LLAppCoreHttp()
{
delete mRequest;
mRequest = NULL;
}
void LLAppCoreHttp::init()
{
LLCore::HttpStatus status = LLCore::HttpRequest::createService();
if (! status)
{
LL_ERRS("Init") << "Failed to initialize HTTP services. Reason: "
<< status.toString()
<< LL_ENDL;
}
// Point to our certs or SSH/https: will fail on connect
status = LLCore::HttpRequest::setPolicyGlobalOption(LLCore::HttpRequest::GP_CA_FILE,
gDirUtilp->getCAFile());
if (! status)
{
LL_ERRS("Init") << "Failed to set CA File for HTTP services. Reason: "
<< status.toString()
<< LL_ENDL;
}
// Establish HTTP Proxy. "LLProxy" is a special string which directs
// the code to use LLProxy::applyProxySettings() to establish any
// HTTP or SOCKS proxy for http operations.
status = LLCore::HttpRequest::setPolicyGlobalOption(LLCore::HttpRequest::GP_LLPROXY, 1);
if (! status)
{
LL_ERRS("Init") << "Failed to set HTTP proxy for HTTP services. Reason: "
<< status.toString()
<< LL_ENDL;
}
// Tracing levels for library & libcurl (note that 2 & 3 are beyond spammy):
// 0 - None
// 1 - Basic start, stop simple transitions
// 2 - libcurl CURLOPT_VERBOSE mode with brief lines
// 3 - with partial data content
static const std::string http_trace("QAModeHttpTrace");
if (gSavedSettings.controlExists(http_trace))
{
long trace_level(0L);
trace_level = long(gSavedSettings.getU32(http_trace));
status = LLCore::HttpRequest::setPolicyGlobalOption(LLCore::HttpRequest::GP_TRACE, trace_level);
}
// Setup default policy and constrain if directed to
mPolicyDefault = LLCore::HttpRequest::DEFAULT_POLICY_ID;
// Texture policy will use default for now.
mPolicyTexture = mPolicyDefault;
static const std::string texture_concur("TextureFetchConcurrency");
if (gSavedSettings.controlExists(texture_concur))
{
U32 concur(llmin(gSavedSettings.getU32(texture_concur), U32(12)));
if (concur > 0)
{
LLCore::HttpStatus status;
status = LLCore::HttpRequest::setPolicyClassOption(mPolicyTexture,
LLCore::HttpRequest::CP_CONNECTION_LIMIT,
concur);
if (! status)
{
LL_WARNS("Init") << "Unable to set texture fetch concurrency. Reason: "
<< status.toString()
<< LL_ENDL;
}
else
{
LL_INFOS("Init") << "Application settings overriding default texture fetch concurrency. New value: "
<< concur
<< LL_ENDL;
}
}
}
// Create the mesh class
mPolicyMesh = LLCore::HttpRequest::createPolicyClass();
if (! mPolicyMesh)
{
LL_WARNS("Init") << "Failed to create HTTP policy class for Mesh. Using default policy."
<< LL_ENDL;
mPolicyMesh = mPolicyDefault;
}
else
{
static const std::string mesh_concur("MeshMaxConcurrentRequests");
if (gSavedSettings.controlExists(mesh_concur))
{
U32 setting(llmin(gSavedSettings.getU32(mesh_concur), U32(32)));
if (setting > 0)
{
LLCore::HttpStatus status;
status = LLCore::HttpRequest::setPolicyClassOption(mPolicyMesh,
LLCore::HttpRequest::CP_CONNECTION_LIMIT,
setting);
if (! status)
{
LL_WARNS("Init") << "Unable to set mesh fetch concurrency. Reason: "
<< status.toString()
<< LL_ENDL;
}
else
{
LL_INFOS("Init") << "Application settings overriding default mesh fetch concurrency. New value: "
<< setting
<< LL_ENDL;
}
}
}
}
// Kick the thread
status = LLCore::HttpRequest::startThread();
if (! status)
{
LL_ERRS("Init") << "Failed to start HTTP servicing thread. Reason: "
<< status.toString()
<< LL_ENDL;
}
mRequest = new LLCore::HttpRequest;
}
void LLAppCoreHttp::requestStop()
{
llassert_always(mRequest);
mStopHandle = mRequest->requestStopThread(this);
if (LLCORE_HTTP_HANDLE_INVALID != mStopHandle)
{
mStopRequested = LLTimer::getTotalSeconds();
}
}
void LLAppCoreHttp::cleanup()
{
if (LLCORE_HTTP_HANDLE_INVALID == mStopHandle)
{
// Should have been started already...
requestStop();
}
if (LLCORE_HTTP_HANDLE_INVALID == mStopHandle)
{
LL_WARNS("Cleanup") << "Attempting to cleanup HTTP services without thread shutdown"
<< LL_ENDL;
}
else
{
while (! mStopped && LLTimer::getTotalSeconds() < (mStopRequested + MAX_THREAD_WAIT_TIME))
{
mRequest->update(200000);
ms_sleep(50);
}
if (! mStopped)
{
LL_WARNS("Cleanup") << "Attempting to cleanup HTTP services with thread shutdown incomplete"
<< LL_ENDL;
}
}
delete mRequest;
mRequest = NULL;
LLCore::HttpStatus status = LLCore::HttpRequest::destroyService();
if (! status)
{
LL_WARNS("Cleanup") << "Failed to shutdown HTTP services, continuing. Reason: "
<< status.toString()
<< LL_ENDL;
}
}
void LLAppCoreHttp::onCompleted(LLCore::HttpHandle, LLCore::HttpResponse *)
{
mStopped = true;
}
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