From ac55496d881e0a17b3eff85f1faae5aafbc53b50 Mon Sep 17 00:00:00 2001
From: Thomas Schmucker <ts@its1.de>
Date: Wed, 22 Jul 2020 17:30:45 +0200
Subject: erster Commit

---
 allocator.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 allocator.c

(limited to 'allocator.c')

diff --git a/allocator.c b/allocator.c
new file mode 100644
index 0000000..c498bc7
--- /dev/null
+++ b/allocator.c
@@ -0,0 +1,75 @@
+#include <stdlib.h>
+#include "allocator.h"
+
+/* Interface Code */
+static void *
+default_allocate(struct its1_allocator *allocator, size_t n)
+{
+	(void) allocator;
+	return malloc(n);
+}
+
+static void
+default_deallocate(struct its1_allocator *allocator, void *ptr)
+{
+	(void) allocator;
+	free(ptr);
+}
+
+struct its1_allocator its1_default_allocator = {
+	.allocate = &default_allocate,
+	.deallocate = &default_deallocate
+};
+
+/* Libary Code */
+#include <string.h>
+
+void *
+its1_malloc(struct its1_allocator *allocator, size_t n)
+{
+	if (allocator == NULL) {
+		allocator = &its1_default_allocator;
+	}
+
+	return allocator->allocate(allocator, n);
+}
+
+void
+its1_free(struct its1_allocator *allocator, void *ptr)
+{
+	if (allocator == NULL) {
+		allocator = &its1_default_allocator;
+	}
+
+	allocator->deallocate(allocator, ptr);
+}
+
+char *
+its1_strdup(struct its1_allocator *allocator, const char *str)
+{
+	size_t n;
+	char *dest;
+
+	n = strlen(str) + 1;
+	dest = its1_malloc(allocator, n);
+	if (dest != NULL) {
+		memcpy(dest, str, n);
+	}
+
+	return dest;
+}
+
+void *
+its1_malloc_zero(struct its1_allocator *allocator, size_t n)
+{
+	void *ptr;
+
+	ptr = its1_malloc(allocator, n);
+	if (ptr != NULL) {
+		memset(ptr, 0, n);
+	}
+
+	return ptr;
+}
+
+int main() {}
-- 
cgit v1.3