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#ifndef SLANG_CORE_PERFORMANCE_PROFILER_H
#define SLANG_CORE_PERFORMANCE_PROFILER_H
#include "../core/slang-list.h"
#include "slang-com-helper.h"
#include "slang-string.h"
#include <chrono>
#include <vector>
namespace Slang
{
struct FuncProfileInfo
{
int invocationCount = 0;
std::chrono::nanoseconds duration = std::chrono::nanoseconds::zero();
};
struct FuncProfileContext
{
const char* funcName = nullptr;
std::chrono::time_point<std::chrono::high_resolution_clock> startTime;
};
class PerformanceProfiler
{
public:
virtual FuncProfileContext enterFunction(const char* funcName) = 0;
virtual void exitFunction(FuncProfileContext context) = 0;
virtual void getResult(StringBuilder& out) = 0;
virtual void clear() = 0;
virtual void dispose() = 0;
public:
static PerformanceProfiler* getProfiler();
};
struct PerformanceProfilerFuncRAIIContext
{
FuncProfileContext context;
PerformanceProfilerFuncRAIIContext(const char* funcName)
{
context = PerformanceProfiler::getProfiler()->enterFunction(funcName);
}
~PerformanceProfilerFuncRAIIContext()
{
PerformanceProfiler::getProfiler()->exitFunction(context);
}
};
struct SlangProfiler : public ISlangProfiler, public RefObject
{
public:
SLANG_REF_OBJECT_IUNKNOWN_ALL
struct ProfileInfo
{
char funcName[256] = {0};
int invocationCount = 0;
std::chrono::nanoseconds duration = std::chrono::nanoseconds::zero();
};
SlangProfiler(PerformanceProfiler* profiler);
ISlangUnknown* getInterface(const Guid& guid);
virtual SLANG_NO_THROW size_t SLANG_MCALL getEntryCount() override;
virtual SLANG_NO_THROW const char* SLANG_MCALL getEntryName(uint32_t index) override;
virtual SLANG_NO_THROW long SLANG_MCALL getEntryTimeMS(uint32_t index) override;
virtual SLANG_NO_THROW uint32_t SLANG_MCALL getEntryInvocationTimes(uint32_t index) override;
private:
List<ProfileInfo> m_profilEntries;
};
#define SLANG_PROFILE PerformanceProfilerFuncRAIIContext _profileContext(__func__)
#define SLANG_PROFILE_SECTION(s) PerformanceProfilerFuncRAIIContext _profileContext##s(#s)
} // namespace Slang
#endif
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