1 files changed, 55 insertions, 0 deletions
diff --git a/src/lib/memory.c b/src/lib/memory.c
new file mode 100644
index 0000000..187137e
--- /dev/null
+++ b/src/lib/memory.c
@@ -0,0 +1,55 @@
+#include "aplwc_internal.h"
+
+struct memory
+memory_init(uint8_t *data , size_t size)
+{
+	struct memory mem;
+
+	mem.data = data;
+	mem.size = size;
+	mem.offset = 0;
+	return mem;
+}
+
+static void *
+alloc(struct memory *m, size_t size, size_t align)
+{
+	uintptr_t ptr;
+	size_t alloc_size, adjust;
+	void *p;
+
+	ptr = (uintptr_t)m->data;
+	alloc_size = size;
+
+	if(NEVER(align == 0))
+		return NULL;
+	adjust = ptr % align;
+
+	if(adjust)
+		alloc_size += align - adjust;
+
+	if((m->size - m->offset) >= alloc_size){
+		p = m->data+m->offset+alloc_size-size;
+		m->offset += alloc_size;
+		memset(p, 0, size);
+	}else
+		p = NULL;
+
+	return p;
+}
+
+struct aplwc *
+memory_alloc_aplwc(struct memory *m)
+{
+	struct aplwc *p;
+
+	p = alloc(m, sizeof(struct aplwc), alignof(struct aplwc));
+	return p;
+}
+
+void
+memory_free_aplwc(struct memory *m, struct aplwc *p)
+{
+	UNUSED_PARAMETER(m);
+	UNUSED_PARAMETER(p);
+}