From 154874afda4a8df885e51c01f7681f04fb0b8e61 Mon Sep 17 00:00:00 2001
From: Thomas Schmucker <ts@its1.de>
Date: Sat, 9 Apr 2022 09:43:53 +0200
Subject: neue Verzeichnisstruktur

---
 src/allocator.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 src/allocator.c

(limited to 'src/allocator.c')

diff --git a/src/allocator.c b/src/allocator.c
new file mode 100644
index 0000000..98fa69f
--- /dev/null
+++ b/src/allocator.c
@@ -0,0 +1,79 @@
+#include "allocator.h"
+
+#include <stdlib.h> /* malloc */
+
+/* Interface Code */
+static void *
+default_allocate(struct allocator *allocator, size_t n)
+{
+	(void) allocator;
+	return malloc(n);
+}
+
+static void
+default_deallocate(struct allocator *allocator, void *ptr)
+{
+	(void) allocator;
+	free(ptr);
+}
+
+struct allocator allocator_default_allocator = {
+	.allocate   = &default_allocate,
+	.deallocate = &default_deallocate
+};
+
+/* Libary Code */
+#include <string.h>
+
+void *
+allocator_malloc(struct allocator *allocator, size_t n)
+{
+	if ( !allocator ) {
+		allocator = &allocator_default_allocator;
+	}
+
+	return allocator->allocate(allocator, n);
+}
+
+void
+allocator_free(struct allocator *allocator, void *ptr)
+{
+	if ( !allocator ) {
+		allocator = &allocator_default_allocator;
+	}
+
+	allocator->deallocate(allocator, ptr);
+}
+
+char *
+allocator_strdup(struct allocator *allocator, const char *str)
+{
+	size_t n;
+	char * dest;
+
+	n    = strlen(str) + 1;
+	dest = allocator_malloc(allocator, n);
+	if ( dest ) {
+		memcpy(dest, str, n);
+	}
+
+	return dest;
+}
+
+void *
+allocator_malloc_zero(struct allocator *allocator, size_t n)
+{
+	void *ptr;
+
+	ptr = allocator_malloc(allocator, n);
+	if ( ptr ) {
+		memset(ptr, 0, n);
+	}
+
+	return ptr;
+}
+
+int
+main()
+{
+}
-- 
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