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/* Copyright (c) 2024, Peter McGoron
*
* 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 <stdio.h>
#include <stdlib.h>
#include "uns.h"
#include "cheney_c89.h"
static void after_gc(Uns_GC gc, struct uns_cheney_c89_statistics *stats)
{
fprintf(stderr,
"cheney_c89 %ld: %lu -> %lu\n",
stats->collection_number,
stats->usage_before,
stats->usage_after
);
if (stats->usage_after >= stats->usage_before * 7/10) {
uns_cheney_c89_set_new_heap_size(gc,
uns_cheney_c89_get_new_heap_size(gc) * 2);
}
}
Uns_GC uns_lisp_gc_init(void)
{
Uns_GC gc = malloc(uns_gc_size);
uns_gc_zero(gc);
if (!uns_cheney_c89_init(gc, 512)) {
fprintf(stderr, "Error initializing GC\n");
exit(1);
}
uns_cheney_c89_set_collect_callback(gc, after_gc);
uns_cheney_c89_set_new_heap_size(gc, 1024);
return gc;
}
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