neue Verzeichnisstruktur

1 files changed, 79 insertions, 0 deletions

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()
+{
+}