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FRC2016-old/wpilib/cpp/current/include/Log.hpp

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2016-01-28 11:33:19 -05:00
#pragma once
#include <sstream>
#include <iomanip>
#include <string>
#include <stdio.h>
#ifdef _WIN32
#include <Windows.h>
#else
#include <sys/time.h>
#endif
inline std::string NowTime();
enum TLogLevel {logNONE, logERROR, logWARNING, logINFO, logDEBUG, logDEBUG1, logDEBUG2, logDEBUG3, logDEBUG4};
class Log
{
public:
Log();
virtual ~Log();
std::ostringstream& Get(TLogLevel level = logINFO);
public:
static TLogLevel& ReportingLevel();
static std::string ToString(TLogLevel level);
static TLogLevel FromString(const std::string& level);
protected:
std::ostringstream os;
private:
Log(const Log&);
Log& operator =(const Log&);
};
inline Log::Log()
{
}
inline std::ostringstream& Log::Get(TLogLevel level)
{
os << "- " << NowTime();
os << " " << ToString(level) << ": ";
os << std::string(level > logDEBUG ? level - logDEBUG : 0, '\t');
return os;
}
inline Log::~Log()
{
os << std::endl;
fprintf(stderr, "%s", os.str().c_str());
fflush(stderr);
}
inline TLogLevel& Log::ReportingLevel()
{
static TLogLevel reportingLevel = logDEBUG4;
return reportingLevel;
}
inline std::string Log::ToString(TLogLevel level)
{
static const char* const buffer[] = {"NONE", "ERROR", "WARNING", "INFO", "DEBUG", "DEBUG1", "DEBUG2", "DEBUG3", "DEBUG4"};
return buffer[level];
}
inline TLogLevel Log::FromString(const std::string& level)
{
if (level == "DEBUG4")
return logDEBUG4;
if (level == "DEBUG3")
return logDEBUG3;
if (level == "DEBUG2")
return logDEBUG2;
if (level == "DEBUG1")
return logDEBUG1;
if (level == "DEBUG")
return logDEBUG;
if (level == "INFO")
return logINFO;
if (level == "WARNING")
return logWARNING;
if (level == "ERROR")
return logERROR;
if (level == "NONE")
return logNONE;
Log().Get(logWARNING) << "Unknown logging level '" << level << "'. Using INFO level as default.";
return logINFO;
}
typedef Log FILELog;
#define FILE_LOG(level) \
if (level > FILELog::ReportingLevel()) ; \
else Log().Get(level)
#ifdef _WIN32
inline std::string NowTime()
{
SYSTEMTIME st;
GetLocalTime(&st);
char result[100] = {0};
sprintf(result, "%d:%d:%d.%d", st.wHour , st.wMinute , st.wSecond , st.wMilliseconds);
return result;
}
#else
inline std::string NowTime()
{
char buffer[11];
time_t t;
time(&t);
tm * r = gmtime(&t);
strftime(buffer, sizeof(buffer), "%H:%M:%S", r);
struct timeval tv;
gettimeofday(&tv, 0);
char result[100] = {0};
sprintf(result, "%s.%03ld", buffer, (long)tv.tv_usec / 1000);
return result;
}
#endif