/*  Part of SWI-Prolog

    Author:        Jan Wielemaker
    E-mail:        J.Wielemaker@vu.nl
    WWW:           http://www.swi-prolog.org
    Copyright (c)  2022, University of Amsterdam
                         VU University Amsterdam
			 CWI, Amsterdam
			 SWI-Prolog Solutions b.v.
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

    1. Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.

    2. Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in
       the documentation and/or other materials provided with the
       distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
    FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
    COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
    BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
    ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGE.
*/

#include "pl-incl.h"

#ifndef _PL_COVERAGE_H
#define _PL_COVERAGE_H

#define COV_TRACK_THREADS	0x0001 /* activate in child threads */

typedef struct coverage
{ Table		table;		/* call-sites --> data */
  unsigned int	references;	/* # threads using this */
  unsigned int	flags;		/* COV_* */
} coverage;

void	  record_coverage(LocalFrame fr, int port);
int	  free_coverage_data(PL_local_data_t *ld);
coverage *share_coverage_data(coverage *cov);


#define Coverage(fr, port) LDFUNC(Coverage, fr, port)
static inline void
Coverage(DECL_LD LocalFrame fr, int port)
{
#if O_COVERAGE
  if ( LD->coverage.active )
    record_coverage(fr, port);
#endif
}

#endif /*_PL_COVERAGE_H*/
