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#pragma once
#include "base/base.hpp"
#include "base/internal/message.hpp"
#include "base/src_point.hpp"
#include <array>
#include <atomic>
#include <string>
namespace base
{
enum LogLevel
{
LDEBUG,
LINFO,
LWARNING,
LERROR,
LCRITICAL,
NUM_LOG_LEVELS
};
std::string ToString(LogLevel level);
bool FromString(std::string const & s, LogLevel & level);
std::array<char const *, NUM_LOG_LEVELS> const & GetLogLevelNames();
using AtomicLogLevel = std::atomic<LogLevel>;
using LogMessageFn = void (*)(LogLevel level, SrcPoint const &, std::string const &);
LogLevel GetDefaultLogLevel();
LogLevel GetDefaultLogAbortLevel();
extern LogMessageFn LogMessage;
extern AtomicLogLevel g_LogLevel;
extern AtomicLogLevel g_LogAbortLevel;
/// @return Pointer to previous message function.
LogMessageFn SetLogMessageFn(LogMessageFn fn);
void LogMessageDefault(LogLevel level, SrcPoint const & srcPoint, std::string const & msg);
void LogMessageTests(LogLevel level, SrcPoint const & srcPoint, std::string const & msg);
// Scope guard to temporarily suppress a specific log level and all lower ones.
//
// For example, in unit tests:
// {
// // Only LERROR and LCRITICAL log messages will be printed.
// ScopedLogLevelChanger defaultChanger;
// // Call a function that has LDEBUG/LINFO/LWARNING logs that you want to suppress.
// TEST(func(), ());
// }
struct ScopedLogLevelChanger
{
explicit ScopedLogLevelChanger(LogLevel temporaryLogLevel = LERROR) { g_LogLevel = temporaryLogLevel; }
~ScopedLogLevelChanger() { g_LogLevel = m_old; }
LogLevel m_old = g_LogLevel;
};
struct ScopedLogAbortLevelChanger
{
explicit ScopedLogAbortLevelChanger(LogLevel temporaryLogAbortLevel = LCRITICAL)
{
g_LogAbortLevel = temporaryLogAbortLevel;
}
~ScopedLogAbortLevelChanger() { g_LogAbortLevel = m_old; }
LogLevel m_old = g_LogAbortLevel;
};
} // namespace base
using ::base::LDEBUG;
using ::base::LINFO;
using ::base::LWARNING;
using ::base::LERROR;
using ::base::LCRITICAL;
using ::base::NUM_LOG_LEVELS;
// Logging macro.
// Example usage: LOG(LINFO, (Calc(), m_Var, "Some string constant"));
#define LOG(level, msg) \
do \
{ \
if ((level) >= ::base::g_LogLevel) \
::base::LogMessage(level, SRC(), ::base::Message msg); \
} while (false)
// Logging macro with short info (without entry point)
#define LOG_SHORT(level, msg) \
do \
{ \
if ((level) >= ::base::g_LogLevel) \
::base::LogMessage(level, base::SrcPoint(), ::base::Message msg); \
} while (false)
// Conditional log. Logs @msg with level @level in case when @X returns false.
#define CLOG(level, X, msg) \
do \
{ \
if (!(X)) \
LOG(level, (SRC(), "CLOG(" #X ")", ::base::Message msg)); \
} while (false)
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