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#pragma once
#include <util/generic/ptr.h>
#include <util/generic/string.h>
#include <util/system/compat.h>
#include <util/system/src_location.h>
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
class ILogger
: public TThrRefBase
{
public:
enum ELevel
{
FATAL /* "fatal", "FATAL" */,
// We don't have such level as `warning', but we support it for compatibility with other APIs.
ERROR /* "error", "warning", "ERROR", "WARNING" */,
INFO /* "info", "INFO" */,
DEBUG /* "debug", "DEBUG" */
};
virtual void Log(ELevel level, const ::TSourceLocation& sourceLocation, const char* format, va_list args) = 0;
};
using ILoggerPtr = ::TIntrusivePtr<ILogger>;
void SetLogger(ILoggerPtr logger);
ILoggerPtr GetLogger();
ILoggerPtr CreateStdErrLogger(ILogger::ELevel cutLevel);
ILoggerPtr CreateFileLogger(ILogger::ELevel cutLevel, const TString& path, bool append = false);
/**
* Create logger that writes to a file in a buffered manner.
* It should result in fewer system calls (useful if you expect a lot of log messages),
* but in case of a crash, you would lose some log messages that haven't been flushed yet.
*/
ILoggerPtr CreateBufferedFileLogger(ILogger::ELevel cutLevel, const TString& path, bool append = false);
} // namespace NYT
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