profiling.h

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#ifndef ION_PROFILE_PROFILING_H_
#define ION_PROFILE_PROFILING_H_


#include "ion/base/staticsafedeclare.h"
#include "ion/profile/calltracemanager.h"
#include "ion/profile/tracerecorder.h"

namespace ion {
namespace profile {

ION_API CallTraceManager* GetCallTraceManager();

}  // namespace profile
}  // namespace ion

#define ION_PROFILING_PASTE1(x, y) x ## y
#define ION_PROFILING_PASTE2(x, y) ION_PROFILING_PASTE1(x, y)
#define ION_PROFILING_PASTE3(x) ION_PROFILING_PASTE2(x, __LINE__)

#define ION_PROFILE_FUNCTION(func_name)                                   \
    /* Force compilation to fail if func_name is not a literal string */  \
    (void) func_name " must be a literal string.";                        \
    ION_DECLARE_SAFE_STATIC_POINTER_WITH_CONSTRUCTOR(                     \
        int, ION_PROFILING_PASTE3(scope_event_id_),                       \
        new int(::ion::profile::GetCallTraceManager()->                   \
            GetScopeEnterEvent(func_name)));                              \
    DCHECK_NE(0, *ION_PROFILING_PASTE3(scope_event_id_));                 \
    ::ion::profile::ScopedTracer ION_PROFILING_PASTE3(scope_tracer_)(     \
        ::ion::profile::GetCallTraceManager()->GetTraceRecorder(),        \
        *ION_PROFILING_PASTE3(scope_event_id_));

#define ION_PROFILE_FUNCTION_ANNOTATED(func_name, key, value) \
    ION_PROFILE_FUNCTION(func_name);                          \
    ::ion::profile::GetCallTraceManager()->GetTraceRecorder() \
        ->AnnotateCurrentScope(key, value);

#define ION_PROFILE_FRAME                                                   \
    ION_DECLARE_SAFE_STATIC_POINTER_WITH_CONSTRUCTOR(                       \
        int, ION_PROFILING_PASTE3(frame_number_), new int(0));              \
    DCHECK_NE(0, ION_PROFILING_PASTE3(frame_number_));                      \
    ::ion::profile::ScopedFrameTracer ION_PROFILING_PASTE3(frame_tracer_)(  \
        ::ion::profile::GetCallTraceManager()->GetTraceRecorder(),          \
        ++(*ION_PROFILING_PASTE3(frame_number_)));

#endif  // ION_PROFILE_PROFILING_H_