fix pipers

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/fd.h b/fs/fd.h
index 21037c8..4bee666 100644
--- a/fs/fd.h
+++ b/fs/fd.h
@@ -22,6 +22,7 @@ typedef struct fd_struct
     bool	(*write)(struct fd_struct*,uint8_t);
     uint8_t	(*read)(struct  fd_struct*);	    
     bool	(*has)(struct   fd_struct*);
+    bool	(*can_write)(struct   fd_struct*);
     bool	(*eof)(struct   fd_struct*);
     bool	(*close)(struct fd_struct*);
     struct fd_struct	(*dupl)(struct fd_struct *);
@@ -34,6 +35,7 @@ uint8_t fd_read(fd*);
 bool    fd_has(fd*);
 bool    fd_eof(fd*);
 bool    fd_write(fd*,uint8_t);
+bool    fd_can_write(fd*);
 bool    fd_close(fd*);
 fd      fd_dupl(fd*);