trace_scope.h

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#pragma once
 
#include <string_view>
 
#include "contur/tracing/i_tracer.h"
 
namespace contur {

    class TraceScope final
    {
        public:
        TraceScope(ITracer &tracer, std::string_view subsystem, std::string_view operation)
            : tracer_(tracer)
            , active_(true)
        {
            tracer_.pushScope(subsystem, operation);
        }

        ~TraceScope()
        {
            if (active_)
            {
                tracer_.popScope();
            }
        }

        TraceScope(const TraceScope &) = delete;

        TraceScope &operator=(const TraceScope &) = delete;
        TraceScope(TraceScope &&) = delete;

        TraceScope &operator=(TraceScope &&) = delete;
 
        private:
        ITracer &tracer_;
        bool active_;
    };
 
} // namespace contur
 
#ifdef CONTUR_TRACE_ENABLED
#define CONTUR_TRACE_SCOPE(tracer, subsystem, operation) \
    ::contur::TraceScope contur_trace_scope_##__LINE__((tracer), (subsystem), (operation))
#define CONTUR_TRACE_BLOCK(code) \
    do                           \
    {                            \
        code                     \
    } while (0)
#define CONTUR_TRACE_L(tracer, level, subsystem, operation, details)                                      \
    (tracer).trace(                                                                                       \
        ::contur::makeTraceEvent(                                                                         \
            (tracer).clock().now(), (subsystem), (operation), (details), (tracer).currentDepth(), (level) \
        )                                                                                                 \
    )
#define CONTUR_TRACE(tracer, subsystem, operation, details) \
    CONTUR_TRACE_L((tracer), ::contur::TraceLevel::Info, (subsystem), (operation), (details))
#else
#define CONTUR_TRACE_SCOPE(tracer, subsystem, operation) ((void)0)
#define CONTUR_TRACE_BLOCK(code) ((void)0)
#define CONTUR_TRACE_L(tracer, level, subsystem, operation, details) ((void)0)
#define CONTUR_TRACE(tracer, subsystem, operation, details) ((void)0)
#endif