/* constraint_handler.c
 * SPDX-License-Identifier: BSD-3-Clause
 */


#define __STDC_WANT_LIB_EXT1__ 1
#include "extlib.h"

static constraint_handler_t *_cnstrnt_handler = NULL;

constraint_handler_t
set_constraint_handler_s (constraint_handler_t handler)
{
    constraint_handler_t *new, *old, ret;

    new = malloc (sizeof (constraint_handler_t));
    if (!new)
        return NULL;
    *new = handler;
    old = _cnstrnt_handler;
    _cnstrnt_handler = new;
    if (!old)
        ret = NULL;
    else
    {
        ret = *old;
        free (old);
    }
    return ret;
}

void
throw_constraint_handler_s (const char *restrict msg, errno_t error)
{
    constraint_handler_t ch;
    ch = _cnstrnt_handler != NULL ? *_cnstrnt_handler : NULL;
    if (ch != NULL)
        ch (msg, NULL, error);
}

void
abort_handler_s (const char *restrict msg, void *restrict ptr, errno_t error)
{
    static const char abrt_msg[] = "abort_handler: ";

    fprintf (stderr, "%s", abrt_msg);
    fprintf (stderr, "%s\n", msg);
    abort ();
}

void
ignore_handler_s (const char *restrict msg, void *restrict ptr, errno_t error)
{
}