//
// Copyright (c) 2008 Advanced Micro Devices, Inc. All rights reserved.
//

#ifndef DEBUG_HPP_
#define DEBUG_HPP_


#include <cassert>

//! \addtogroup Utils

namespace amd {/*@{*/

enum LogLevel {
    LOG_NONE    = 0,
    LOG_ERROR   = 1,
    LOG_WARNING = 2,
    LOG_INFO    = 3,
    LOG_DEBUG   = 4
};

//! \cond ignore
extern "C" void
breakpoint();
//! \endcond

//! \brief Report a Fatal exception message and abort.
extern void
report_fatal(const char* file, int line, const char* message);

//! \brief Display a warning message.
extern void
report_warning(const char* message);

//! \brief Insert a log entry.
extern void
log_entry(LogLevel level, const char* file, int line, const char* messsage);

//! \brief Insert a timestamped log entry.
extern void
log_timestamped(LogLevel level, const char* file, int line, const char* messsage);

//! \brief Insert a printf-style log entry.
extern void
log_printf(
    LogLevel level,
    const char* file,
    int line,
    const char* format,
    ...);

/*@}*/} // namespace amd

#if __INTEL_COMPILER

// Disable ICC's warning #279: controlling expression is constant
// (0!=1 && "msg")
//          ^
#pragma warning ( disable : 279 )

#endif // __INTEL_COMPILER

//! \brief Abort the program if the invariant \a cond is false.
#define guarantee(cond)                                    \
    if (!(cond))                                           \
    {                                                      \
        amd::report_fatal(__FILE__, __LINE__,              \
            "guarantee(" XSTR(cond) ")");                  \
        amd::breakpoint();                                 \
    }

#define fixme_guarantee(cond) guarantee(cond)

//! \brief Abort the program with a fatal error message.
#define fatal(msg) do { assert(false && msg); } while (0)


//! \brief Display a warning message.
inline void
warning(const char* msg)
{
    amd::report_warning(msg);
}

/*! \brief Abort the program with a "ShouldNotReachHere" message.
 *  \hideinitializer
 */
#define ShouldNotReachHere() fatal("ShouldNotReachHere()")

/*! \brief Abort the program with a "ShouldNotCallThis" message.
 *  \hideinitializer
 */
#define ShouldNotCallThis() fatal("ShouldNotCallThis()")

/*! \brief Abort the program with an "Unimplemented" message.
 *  \hideinitializer
 */
#define Unimplemented() fatal("Unimplemented()")

/*! \brief Display an "Untested" warning message.
 *  \hideinitializer
 */
#ifndef NDEBUG
# define Untested(msg) \
    warning("Untested(\"" msg "\")")
#else /*NDEBUG*/
# define Untested(msg) (void)(0)
#endif /*NDEBUG*/

#ifdef DEBUG
namespace amd {
extern bool ShouldBreak(LogLevel level);
} // namespace amd
#endif // DEBUG

#ifdef DEBUG
# define Log(level,msg)                                 \
do                                                      \
{                                                       \
    if (LOG_LEVEL >= level) {                           \
        amd::log_entry(level, __FILE__, __LINE__, msg); \
        if (amd::ShouldBreak(level)) {                  \
            amd::breakpoint();                          \
        }                                               \
    }                                                   \
} while (false)
#else // !DEBUG
# define Log(level,msg) (void)(0)
#endif // !DEBUG

#ifdef DEBUG
# define LogTS(level,msg)                                     \
do                                                            \
{                                                             \
    if (LOG_LEVEL >= level) {                                 \
        amd::log_timestamped(level, __FILE__, __LINE__, msg); \
        if (amd::ShouldBreak(level)) {                        \
            amd::breakpoint();                                \
        }                                                     \
    }                                                         \
} while (false)
#else // !DEBUG
# define Log(level,msg) (void)(0)
#endif // !DEBUG

#ifdef DEBUG
# define Logf(level, format, ...)                                        \
do                                                                       \
{                                                                        \
    if (LOG_LEVEL >= level) {                                            \
        amd::log_printf(level, __FILE__, __LINE__, format, __VA_ARGS__); \
        if (amd::ShouldBreak(level)) {                                   \
            amd::breakpoint();                                           \
        }                                                                \
    }                                                                    \
} while (false)
#else // !DEBUG
# define Logf(level, format, ...) (void)(0)
#endif // !DEBUG

#define CondLog(cond,msg)                              \
do {                                                   \
    if (false DEBUG_ONLY(|| (cond))) {                 \
        Log(amd::LOG_INFO,msg);                        \
    }                                                  \
} while (false)

#define LogInfo(msg)            Log(amd::LOG_INFO,msg)
#define LogError(msg)           Log(amd::LOG_ERROR,msg)
#define LogWarning(msg)         Log(amd::LOG_WARNING,msg)

#define LogTSInfo(msg)          LogTS(amd::LOG_INFO,msg)
#define LogTSError(msg)         LogTS(amd::LOG_ERROR,msg)
#define LogTSWarning(msg)       LogTS(amd::LOG_WARNING,msg)

#define LogPrintfDebug(format, ...)  Logf(amd::LOG_DEBUG, format, __VA_ARGS__)
#define LogPrintfError(format, ...)  Logf(amd::LOG_ERROR, format, __VA_ARGS__)
#define LogPrintfWarning(format, ...)  Logf(amd::LOG_WARNING, format, __VA_ARGS__)
#define LogPrintfInfo(format, ...)  Logf(amd::LOG_INFO, format, __VA_ARGS__)

#endif /*DEBUG_HPP_*/