1 files changed, 48 insertions, 0 deletions
diff --git a/src/msg.fbs b/src/msg.fbs
index 0d78395ea..7f42cd637 100644
--- a/src/msg.fbs
+++ b/src/msg.fbs
@@ -27,6 +27,13 @@ union Any {
   Stat,
   StatRes,
   SetEnv,
+  Open,
+  OpenRes,
+  Read,
+  ReadRes,
+  Write,
+  WriteRes,
+  Close,
 }
 
 enum ErrorKind: byte {
@@ -53,6 +60,8 @@ enum ErrorKind: byte {
   Other,
   UnexpectedEof,
 
+  BadFileDescriptor,
+
   // url errors
 
   EmptyHost,
@@ -199,6 +208,7 @@ table ReadFileRes {
 
 table WriteFile {
   filename: string;
+  data: [ubyte];
   perm: uint;
   // perm specified by https://godoc.org/os#FileMode
 }
@@ -237,4 +247,42 @@ table StatRes {
   has_mode: bool; // false on windows
 }
 
+table WriteFileSync {
+  filename: string;
+  data: [ubyte];
+  perm: uint;
+  // perm specified by https://godoc.org/os#FileMode
+}
+
+table Open {
+  filename: string;
+  perm: uint;
+}
+
+table OpenRes {
+  fd: int;
+}
+
+table Read {
+  fd: int;
+  // (ptr, len) is passed as second parameter to libdeno.send().
+}
+
+table ReadRes {
+  nread: uint;
+  eof: bool;
+}
+
+table Write {
+  fd: int;
+}
+
+table WriteRes {
+  nbyte: uint;
+}
+
+table Close {
+  fd: int;
+}
+
 root_type Base;