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/*
* SessionPersistentState.cpp
*
* Copyright (C) 2009-11 by RStudio, Inc.
*
* This program is licensed to you under the terms of version 3 of the
* GNU Affero General Public License. This program is distributed WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
*
*/
#
include
<
session/SessionPersistentState.hpp
>
#
include
<
core/Log.hpp
>
#
include
<
core/Error.hpp
>
#
include
<
core/FilePath.hpp
>
#
include
<
core/system/System.hpp
>
#
include
<
session/SessionOptions.hpp
>
#
include
<
session/SessionModuleContext.hpp
>
using
namespace
core
;
namespace
session
{
namespace
{
const
char
*
const
kActiveClientId
=
"
active-client-id
"
;
const
char
*
const
kAbend
=
"
abend
"
;
}
PersistentState&
persistentState
()
{
static
PersistentState instance ;
return
instance;
}
Error
PersistentState::initialize
()
{
serverMode_ = (
session::options
().
programMode
() ==
kSessionProgramModeServer
);
desktopClientId_ =
core::system::generateUuid
();
FilePath scratchPath =
module_context::scopedScratchPath
();
FilePath statePath = scratchPath.
complete
(
"
persistent-state
"
);
return
settings_.
initialize
(statePath);
}
std::string
PersistentState::activeClientId
()
{
if
(serverMode_)
{
std::string activeClientId = settings_.
get
(
kActiveClientId
);
if
(!activeClientId.
empty
())
return
activeClientId;
else
return
newActiveClientId
();
}
else
{
return
desktopClientId_;
}
}
std::string
PersistentState::newActiveClientId
()
{
if
(serverMode_)
{
std::string newId =
core::system::generateUuid
();
settings_.
set
(
kActiveClientId
, newId);
return
newId;
}
else
{
return
desktopClientId_;
}
}
//
abend tracking only applies to server mode
bool
PersistentState::hadAbend
()
{
if
(serverMode_)
{
return
settings_.
getInt
(
kAbend
,
false
);
}
else
{
return
false
;
}
}
void
PersistentState::setAbend
(
bool
abend)
{
if
(serverMode_)
{
settings_.
set
(
kAbend
, abend);
}
}
}
//
namespace session
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