file descriptors

pipes

1 files changed, 9 insertions, 0 deletions

diff --git a/fd.h b/fd.h
new file mode 100644
index 0000000..c8d0c34
--- /dev/null
+++ b/fd.h
@@ -0,0 +1,9 @@
+struct fd {
+  enum { FD_CLOSED, FD_NONE, FD_PIPE } type;
+  int count; // reference count
+  char readable;
+  char writeable;
+  struct pipe *pipe;
+};
+
+extern struct fd fds[NFD];