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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#ifndef CONTEXT_H
#define CONTEXT_H
#include "base/i2-base.hpp"
#include "base/string.hpp"
#include <list>
namespace icinga
{
class ContextTrace
{
public:
ContextTrace();
void Print(std::ostream& fp) const;
size_t GetLength() const;
private:
std::list<String> m_Frames;
};
std::ostream& operator<<(std::ostream& stream, const ContextTrace& trace);
/**
* A context frame.
*
* @ingroup base
*/
class ContextFrame
{
public:
ContextFrame(const String& message);
~ContextFrame();
private:
static std::list<String>& GetFrames();
friend class ContextTrace;
};
/* The currentContextFrame variable has to be volatile in order to prevent
* the compiler from optimizing it away. */
#define CONTEXT(message) volatile icinga::ContextFrame currentContextFrame(message)
}
#endif /* CONTEXT_H */
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