Initial commit

1 files changed, 25 insertions, 0 deletions

diff --git a/block_walker.h b/block_walker.h
new file mode 100644
index 0000000..00efc09
--- /dev/null
+++ b/block_walker.h
@@ -0,0 +1,25 @@
+#ifndef _BLOCK_WALKER_H
+#define _BLOCK_WALKER_H
+#include <stdint.h>
+
+typedef struct _block_walker bwalker;
+
+/* Creacion y destruccion */
+bwalker *bwalker_create(const char *base_mem,size_t size, uint16_t *indirect_mem);
+void bwalker_destroy (bwalker *bw);
+
+/* Consigue un bloque libre. En caso de fallar, retorna 0 */
+uint16_t bwalker_direct_length(bwalker *bw);
+uint16_t bwalker_indirect_length(bwalker *bw);
+
+uint16_t bwalker_allocate_block(bwalker *bw);
+void bwalker_free_block(bwalker *bw);
+
+uint16_t bwalker_next(bwalker *bw);
+uint16_t bwalker_prev(bwalker *bw);
+uint16_t bwalker_last_indirect (bwalker *bw);
+uint16_t bwalker_last_block (bwalker *bw);
+uint16_t bwalker_block_is_last(bwalker *bw);
+
+void bwalker_set_first(bwalker *bw);
+#endif