From 587cb05ec42417a05ed371d500b8734b10cf60f7 Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Wed, 5 Jan 2022 07:58:36 -0600
Subject: Implement Link

---
 src/ops/entry.rs | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'src/ops/entry.rs')

diff --git a/src/ops/entry.rs b/src/ops/entry.rs
index 4f0b76f..74072ef 100644
--- a/src/ops/entry.rs
+++ b/src/ops/entry.rs
@@ -16,11 +16,16 @@ pub enum Getattr {}
 pub enum Mkdir {}
 pub enum Unlink {}
 pub enum Rmdir {}
+pub enum Link {}
 
 pub trait RequestForget<'o>: Operation<'o> {
     fn forget_list<'a>(request: &'a Request<'o, Self>) -> ForgetList<'a>;
 }
 
+pub trait RequestLink<'o>: Operation<'o> {
+    fn source_ino(request: &Request<'o, Self>) -> Ino;
+}
+
 pub trait ReplyStat<'o>: Operation<'o> {
     fn stat(reply: Reply<'o, Self>, inode: &impl Stat) -> Done<'o>;
 }
@@ -35,6 +40,7 @@ impl Sealed for Getattr {}
 impl Sealed for Mkdir {}
 impl Sealed for Unlink {}
 impl Sealed for Rmdir {}
+impl Sealed for Link {}
 
 impl<'o> Operation<'o> for Forget {
     type RequestBody = proto::OpcodeSelect<
@@ -66,6 +72,11 @@ impl<'o> Operation<'o> for Rmdir {
     type ReplyState = ();
 }
 
+impl<'o> Operation<'o> for Link {
+    type RequestBody = (&'o proto::LinkIn, &'o CStr);
+    type ReplyState = ();
+}
+
 impl<'o> RequestForget<'o> for Forget {
     fn forget_list<'a>(request: &'a Request<'o, Self>) -> ForgetList<'a> {
         use {proto::OpcodeSelect::*, ForgetList::*};
@@ -149,3 +160,19 @@ impl<'o> RequestName<'o> for Rmdir {
 }
 
 impl<'o> ReplyOk<'o> for Rmdir {}
+
+impl<'o> RequestName<'o> for Link {
+    fn name<'a>(request: &'a Request<'o, Self>) -> &'a OsStr {
+        let (_header, name) = request.body;
+        c_to_os(name)
+    }
+}
+
+impl<'o> RequestLink<'o> for Link {
+    fn source_ino(request: &Request<'o, Self>) -> Ino {
+        let (header, _name) = request.body;
+        Ino(header.old_ino)
+    }
+}
+
+impl<'o> ReplyKnown<'o> for Link {}
-- 
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