import flatrate lisp, rename to Universal Service LISP

1 files changed, 60 insertions, 0 deletions

diff --git a/examples/lisp/uns_lisp_cheney_c89.c b/examples/lisp/uns_lisp_cheney_c89.c
new file mode 100644
index 0000000..96b49a9
--- /dev/null
+++ b/examples/lisp/uns_lisp_cheney_c89.c
@@ -0,0 +1,60 @@
+/* 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);
+	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;
+}