Files
allwpilib/hal/include/Log.hpp
Tyler Veness e14e45da76 Add format script which invokes clang-format on the C++ source code (#41)
On Windows machines, clang-format.exe must be in the PATH environment variable.
2016-05-20 17:30:37 -07:00

119 lines
2.7 KiB
C++

#pragma once
#include <stdio.h>
#include <iomanip>
#include <sstream>
#include <string>
#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