syscall: Support removing resources from directory hooks

2 files changed, 9 insertions, 6 deletions

diff --git a/src/lib/syscall.zig b/src/lib/syscall.zig
index 5e9105b..3b7ed71 100644
--- a/src/lib/syscall.zig
+++ b/src/lib/syscall.zig
@@ -180,11 +180,14 @@ fn remove(trap_frame: *trap.Frame) void {
 
     if (vfs.find(dirname)) |node| {
         const basename = std.fs.path.basenamePosix(path);
-        sysexchange.frameReturn(null, trap_frame, switch (node.data.resource) {
-            .dir => |*dir| dir.remove(basename),
-            .dir_hook => Error.Unimplemented,
-            else => vfs.Error.NotADirectory,
-        });
+        switch (node.data.resource) {
+            .dir => |*dir| sysexchange.frameReturn(null, trap_frame, dir.remove(basename)),
+            .dir_hook => |dir_hook| {
+                const result = dir_hook.removeFn(basename.ptr, basename.len);
+                sysexchange.frameReturnResult(void, trap_frame, result);
+            },
+            else => sysexchange.frameReturn(void, trap_frame, vfs.Error.NotADirectory),
+        }
     } else {
         sysexchange.frameReturn(void, trap_frame, vfs.Error.NotFound);
     }
diff --git a/src/lib/vfs.zig b/src/lib/vfs.zig
index af3b05c..49a086a 100644
--- a/src/lib/vfs.zig
+++ b/src/lib/vfs.zig
@@ -64,7 +64,7 @@ pub const DirHook = struct {
 
     pub const ProvideFn = *allowzero const fn (inode: Inode) sysexchange.Result(void);
     pub const FindFn = *allowzero const fn (name: [*:0]const u8) ?Inode;
-    pub const RemoveFn = *allowzero const fn (name: [*:0]const u8) sysexchange.Result(void);
+    pub const RemoveFn = *allowzero const fn (name: [*]const u8, name_len: usize) callconv(.C) sysexchange.Result(void);
 };
 
 pub const Resource = union(enum) {