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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:34:54 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:34:54 +0000 |
commit | 0915b3ef56dfac3113cce55a59a5765dc94976be (patch) | |
tree | a8fea11d50b4f083e1bf0f90025ece7f0824784a /lib/base/scriptframe.cpp | |
parent | Initial commit. (diff) | |
download | icinga2-0915b3ef56dfac3113cce55a59a5765dc94976be.tar.xz icinga2-0915b3ef56dfac3113cce55a59a5765dc94976be.zip |
Adding upstream version 2.13.6.upstream/2.13.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/base/scriptframe.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/lib/base/scriptframe.cpp b/lib/base/scriptframe.cpp new file mode 100644 index 0000000..8369e55 --- /dev/null +++ b/lib/base/scriptframe.cpp @@ -0,0 +1,130 @@ +/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */ + +#include "base/scriptframe.hpp" +#include "base/scriptglobal.hpp" +#include "base/namespace.hpp" +#include "base/exception.hpp" +#include "base/configuration.hpp" + +using namespace icinga; + +boost::thread_specific_ptr<std::stack<ScriptFrame *> > ScriptFrame::m_ScriptFrames; + +static auto l_InternalNSBehavior = new ConstNamespaceBehavior(); + +/* Ensure that this gets called with highest priority + * and wins against other static initializers in lib/icinga, etc. + * LTO-enabled builds will cause trouble otherwise, see GH #6575. + */ +INITIALIZE_ONCE_WITH_PRIORITY([]() { + Namespace::Ptr globalNS = ScriptGlobal::GetGlobals(); + + auto systemNSBehavior = new ConstNamespaceBehavior(); + systemNSBehavior->Freeze(); + Namespace::Ptr systemNS = new Namespace(systemNSBehavior); + globalNS->SetAttribute("System", new ConstEmbeddedNamespaceValue(systemNS)); + + systemNS->SetAttribute("Configuration", new EmbeddedNamespaceValue(new Configuration())); + + auto typesNSBehavior = new ConstNamespaceBehavior(); + typesNSBehavior->Freeze(); + Namespace::Ptr typesNS = new Namespace(typesNSBehavior); + globalNS->SetAttribute("Types", new ConstEmbeddedNamespaceValue(typesNS)); + + auto statsNSBehavior = new ConstNamespaceBehavior(); + statsNSBehavior->Freeze(); + Namespace::Ptr statsNS = new Namespace(statsNSBehavior); + globalNS->SetAttribute("StatsFunctions", new ConstEmbeddedNamespaceValue(statsNS)); + + Namespace::Ptr internalNS = new Namespace(l_InternalNSBehavior); + globalNS->SetAttribute("Internal", new ConstEmbeddedNamespaceValue(internalNS)); +}, 1000); + +INITIALIZE_ONCE_WITH_PRIORITY([]() { + l_InternalNSBehavior->Freeze(); +}, 0); + +ScriptFrame::ScriptFrame(bool allocLocals) + : Locals(allocLocals ? new Dictionary() : nullptr), Self(ScriptGlobal::GetGlobals()), Sandboxed(false), Depth(0) +{ + InitializeFrame(); +} + +ScriptFrame::ScriptFrame(bool allocLocals, Value self) + : Locals(allocLocals ? new Dictionary() : nullptr), Self(std::move(self)), Sandboxed(false), Depth(0) +{ + InitializeFrame(); +} + +void ScriptFrame::InitializeFrame() +{ + std::stack<ScriptFrame *> *frames = m_ScriptFrames.get(); + + if (frames && !frames->empty()) { + ScriptFrame *frame = frames->top(); + + Sandboxed = frame->Sandboxed; + } + + PushFrame(this); +} + +ScriptFrame::~ScriptFrame() +{ + ScriptFrame *frame = PopFrame(); + ASSERT(frame == this); + +#ifndef I2_DEBUG + (void)frame; +#endif /* I2_DEBUG */ +} + +void ScriptFrame::IncreaseStackDepth() +{ + if (Depth + 1 > 300) + BOOST_THROW_EXCEPTION(ScriptError("Stack overflow while evaluating expression: Recursion level too deep.")); + + Depth++; +} + +void ScriptFrame::DecreaseStackDepth() +{ + Depth--; +} + +ScriptFrame *ScriptFrame::GetCurrentFrame() +{ + std::stack<ScriptFrame *> *frames = m_ScriptFrames.get(); + + ASSERT(!frames->empty()); + return frames->top(); +} + +ScriptFrame *ScriptFrame::PopFrame() +{ + 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); +} |