changed how to buffer is created

buffer.h

@@ -1,13 +1,19 @@
 #pragma once
 #include "record.h"
+#include <stdbool.h>
 
 typedef struct {
     record* location;
     int length;
     int capacity;
+    bool original;
 } buffer;
 
-buffer create_buffer(int capacity);
+// #todo switch to returning a pointer, and write destroy_buffer method
+buffer* create_buffer(int capacity);
+void destroy_buffer(buffer* buff);
+buffer* split_buffer(buffer* original, int pieces);
+
 int read_buffer(buffer* buff, FILE* in);
 int write_buffer(buffer* buff, FILE* in);
 int write_buffer_debug(buffer* buff, FILE* in);