timer.h

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// Copyright (C) 2011 CNRS - Ecole Polytechnique - INRIA.
//
// This file is part of TIFA.
//
// TIFA is free software; you can redistribute it and/or modify it under the 
// terms of the GNU Lesser General Public License as published by the Free
// Software Foundation; either version 2.1 of the License, or (at your option)
// any later version.
//
// TIFA is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
// more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this library; if not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.

#if !defined(_TIFA_TIMER_H_)

#define _TIFA_TIMER_H_

#ifdef __cplusplus
extern "C" {
#endif

#if !defined(__TIMING__)
#error "__TIMING__ must be defined before including this header."
#endif

#if __TIMING__
    #include "stopwatch.h"
    
    #define TIMING_FORMAT "%8.3f"

    #define INIT_NAMED_TIMER(NAME)                  \
        stopwatch_t __TIFA_STOPWATCH_ ##NAME;       \
        init_stopwatch(&__TIFA_STOPWATCH_ ##NAME);

    #define RESET_NAMED_TIMER(NAME)                     \
        do {                                            \
            reset_stopwatch(&__TIFA_STOPWATCH_ ##NAME); \
        } while (0)

    #define START_NAMED_TIMER(NAME)                     \
        do {                                            \
            start_stopwatch(&__TIFA_STOPWATCH_ ##NAME); \
        } while (0)

    #define STOP_NAMED_TIMER(NAME)                      \
        do {                                            \
            stop_stopwatch(&__TIFA_STOPWATCH_ ##NAME);  \
        } while (0)

    #define GET_NAMED_TIMING(NAME)                          \
        get_stopwatch_elapsed(&__TIFA_STOPWATCH_ ##NAME)
        
    #define INIT_TIMER      INIT_NAMED_TIMER()
    
    #define RESET_TIMER     RESET_NAMED_TIMER()
    
    #define START_TIMER     START_NAMED_TIMER()
    
    #define STOP_TIMER      STOP_NAMED_TIMER()
    
    #define GET_TIMING      GET_NAMED_TIMING()
#else
    #define INIT_NAMED_TIMER(NAME)    /* intentionally left empty */
    #define RESET_NAMED_TIMER(NAME)   /* intentionally left empty */
    #define START_NAMED_TIMER(NAME)   /* intentionally left empty */
    #define STOP_NAMED_TIMER(NAME)    /* intentionally left empty */
    #define GET_NAMED_TIMING(NAME)    (-1.0)

    #define INIT_TIMER    /* intentionally left empty */
    #define RESET_TIMER   /* intentionally left empty */
    #define START_TIMER   /* intentionally left empty */
    #define STOP_TIMER    /* intentionally left empty */
    #define GET_TIMING    (-1.0)
#endif

#ifdef __cplusplus
}
#endif

#endif

---