reading ext2 files and using our abstractions

1 files changed, 35 insertions, 0 deletions

diff --git a/fs/fd.h b/fs/fd.h
new file mode 100644
index 0000000..a3bdb5a
--- /dev/null
+++ b/fs/fd.h
@@ -0,0 +1,35 @@
+// SIMPLE FILE DESCRIPTOR //
+
+#ifndef FD_H
+#define FD_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "fifo.h"
+
+enum FD_TYPE{
+    FD_TYPE_FIFO_BUFFERED=1,
+    FD_TYPE_EXT2_FILE=2
+};
+
+typedef struct fd_struct
+{
+    bool	(*write)(struct fd_struct*,uint8_t);
+    uint8_t	(*read)(struct  fd_struct*);	    
+    bool	(*has)(struct   fd_struct*);
+    bool	(*close)(struct fd_struct*);
+
+    uint8_t type;
+    void *data; // opaque data
+}fd;
+
+uint8_t fd_read(fd*);
+bool    fd_has(fd*);
+bool    fd_write(fd*,uint8_t);
+bool    fd_close(fd*);
+
+fd fd_from_fifo(fifo* f);
+fd fd_from_path(char *path);
+
+#endif