mirror of https://github.com/Icinga/icinga2.git
95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
/******************************************************************************
|
|
* Icinga 2 *
|
|
* Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/) *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or *
|
|
* modify it under the terms of the GNU General Public License *
|
|
* as published by the Free Software Foundation; either version 2 *
|
|
* of the License, or (at your option) any later version. *
|
|
* *
|
|
* This program 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 General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU General Public License *
|
|
* along with this program; if not, write to the Free Software Foundation *
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
|
|
******************************************************************************/
|
|
|
|
#include "base/scriptframe.hpp"
|
|
#include "base/scriptglobal.hpp"
|
|
#include "base/exception.hpp"
|
|
|
|
using namespace icinga;
|
|
|
|
boost::thread_specific_ptr<std::stack<ScriptFrame *> > ScriptFrame::m_ScriptFrames;
|
|
|
|
ScriptFrame::ScriptFrame(void)
|
|
: Locals(new Dictionary()), Self(ScriptGlobal::GetGlobals()), Sandboxed(false), Depth(0)
|
|
{
|
|
PushFrame(this);
|
|
}
|
|
|
|
ScriptFrame::ScriptFrame(const Value& self)
|
|
: Locals(new Dictionary()), Self(self), Sandboxed(false), Depth(0)
|
|
{
|
|
PushFrame(this);
|
|
}
|
|
|
|
ScriptFrame::~ScriptFrame(void)
|
|
{
|
|
ScriptFrame *frame = PopFrame();
|
|
ASSERT(frame == this);
|
|
}
|
|
|
|
void ScriptFrame::IncreaseStackDepth(void)
|
|
{
|
|
if (Depth + 1 > 300)
|
|
BOOST_THROW_EXCEPTION(ScriptError("Stack overflow while evaluating expression: Recursion level too deep."));
|
|
|
|
Depth++;
|
|
}
|
|
|
|
void ScriptFrame::DecreaseStackDepth(void)
|
|
{
|
|
Depth--;
|
|
}
|
|
|
|
ScriptFrame *ScriptFrame::GetCurrentFrame(void)
|
|
{
|
|
std::stack<ScriptFrame *> *frames = m_ScriptFrames.get();
|
|
|
|
ASSERT(!frames->empty());
|
|
return frames->top();
|
|
}
|
|
|
|
ScriptFrame *ScriptFrame::PopFrame(void)
|
|
{
|
|
std::stack<ScriptFrame *> *frames = m_ScriptFrames.get();
|
|
|
|
ASSERT(!frames->empty());
|
|
|
|
ScriptFrame *frame = frames->top();
|
|
frames->pop();
|
|
|
|
return frame;
|
|
}
|
|
|
|
void ScriptFrame::PushFrame(ScriptFrame *frame)
|
|
{
|
|
std::stack<ScriptFrame *> *frames = m_ScriptFrames.get();
|
|
|
|
if (!frames) {
|
|
frames = new std::stack<ScriptFrame *>();
|
|
m_ScriptFrames.reset(frames);
|
|
}
|
|
|
|
if (!frames->empty()) {
|
|
ScriptFrame *parent = frames->top();
|
|
frame->Depth += parent->Depth;
|
|
}
|
|
|
|
frames->push(frame);
|
|
}
|