mirror of
https://github.com/Icinga/icinga2.git
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131 lines
3.3 KiB
C++
131 lines
3.3 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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#include "base/scriptframe.hpp"
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#include "base/scriptglobal.hpp"
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#include "base/namespace.hpp"
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#include "base/exception.hpp"
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#include "base/configuration.hpp"
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using namespace icinga;
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boost::thread_specific_ptr<std::stack<ScriptFrame *> > ScriptFrame::m_ScriptFrames;
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static auto l_InternalNSBehavior = new ConstNamespaceBehavior();
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/* Ensure that this gets called with highest priority
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* and wins against other static initializers in lib/icinga, etc.
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* LTO-enabled builds will cause trouble otherwise, see GH #6575.
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*/
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INITIALIZE_ONCE_WITH_PRIORITY([]() {
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Namespace::Ptr globalNS = ScriptGlobal::GetGlobals();
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auto systemNSBehavior = new ConstNamespaceBehavior();
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systemNSBehavior->Freeze();
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Namespace::Ptr systemNS = new Namespace(systemNSBehavior);
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globalNS->SetAttribute("System", std::make_shared<ConstEmbeddedNamespaceValue>(systemNS));
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systemNS->SetAttribute("Configuration", std::make_shared<EmbeddedNamespaceValue>(new Configuration()));
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auto typesNSBehavior = new ConstNamespaceBehavior();
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typesNSBehavior->Freeze();
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Namespace::Ptr typesNS = new Namespace(typesNSBehavior);
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globalNS->SetAttribute("Types", std::make_shared<ConstEmbeddedNamespaceValue>(typesNS));
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auto statsNSBehavior = new ConstNamespaceBehavior();
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statsNSBehavior->Freeze();
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Namespace::Ptr statsNS = new Namespace(statsNSBehavior);
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globalNS->SetAttribute("StatsFunctions", std::make_shared<ConstEmbeddedNamespaceValue>(statsNS));
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Namespace::Ptr internalNS = new Namespace(l_InternalNSBehavior);
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globalNS->SetAttribute("Internal", std::make_shared<ConstEmbeddedNamespaceValue>(internalNS));
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}, 1000);
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INITIALIZE_ONCE_WITH_PRIORITY([]() {
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l_InternalNSBehavior->Freeze();
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}, 0);
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ScriptFrame::ScriptFrame(bool allocLocals)
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: Locals(allocLocals ? new Dictionary() : nullptr), Self(ScriptGlobal::GetGlobals()), Sandboxed(false), Depth(0)
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{
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InitializeFrame();
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}
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ScriptFrame::ScriptFrame(bool allocLocals, Value self)
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: Locals(allocLocals ? new Dictionary() : nullptr), Self(std::move(self)), Sandboxed(false), Depth(0)
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{
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InitializeFrame();
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}
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void ScriptFrame::InitializeFrame()
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{
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std::stack<ScriptFrame *> *frames = m_ScriptFrames.get();
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if (frames && !frames->empty()) {
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ScriptFrame *frame = frames->top();
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Sandboxed = frame->Sandboxed;
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}
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PushFrame(this);
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}
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ScriptFrame::~ScriptFrame()
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{
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ScriptFrame *frame = PopFrame();
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ASSERT(frame == this);
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#ifndef I2_DEBUG
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(void)frame;
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#endif /* I2_DEBUG */
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}
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void ScriptFrame::IncreaseStackDepth()
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{
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if (Depth + 1 > 300)
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BOOST_THROW_EXCEPTION(ScriptError("Stack overflow while evaluating expression: Recursion level too deep."));
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Depth++;
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}
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void ScriptFrame::DecreaseStackDepth()
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{
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Depth--;
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}
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ScriptFrame *ScriptFrame::GetCurrentFrame()
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{
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std::stack<ScriptFrame *> *frames = m_ScriptFrames.get();
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ASSERT(!frames->empty());
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return frames->top();
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}
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ScriptFrame *ScriptFrame::PopFrame()
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{
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std::stack<ScriptFrame *> *frames = m_ScriptFrames.get();
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ASSERT(!frames->empty());
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ScriptFrame *frame = frames->top();
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frames->pop();
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return frame;
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}
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void ScriptFrame::PushFrame(ScriptFrame *frame)
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{
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std::stack<ScriptFrame *> *frames = m_ScriptFrames.get();
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if (!frames) {
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frames = new std::stack<ScriptFrame *>();
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m_ScriptFrames.reset(frames);
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}
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if (!frames->empty()) {
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ScriptFrame *parent = frames->top();
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frame->Depth += parent->Depth;
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}
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frames->push(frame);
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}
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