[Minios-devel] [UNIKRAFT PATCH v2 17/23] lib/vfscore: introduce fdclose

[Yuri Volchkov <yuri.volchkov@xxxxxxxxx>]

Signed-off-by: Yuri Volchkov <yuri.volchkov@xxxxxxxxx>
---
 lib/vfscore/main.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/lib/vfscore/main.c b/lib/vfscore/main.c
index 1164b30b..0ff8d390 100644
--- a/lib/vfscore/main.c
+++ b/lib/vfscore/main.c
@@ -205,6 +205,25 @@ TRACEPOINT(trace_vfs_close, "%d", int);
 TRACEPOINT(trace_vfs_close_ret, "");
 TRACEPOINT(trace_vfs_close_err, "%d", int);
 
+int fdclose(int fd)
+{
+       struct vfscore_file *fp;
+
+       fp = vfscore_get_file(fd);
+       if (!fp)
+               return EBADF;
+
+       vfscore_put_fd(fd);
+       /* vfscore_get_file increases the f_count. The first fdrop is
+        * to decrement it back. The second is an actual reducing we
+        * are supposed to do while performing fdclose()
+        */
+       fdrop(fp);
+       fdrop(fp);
+
+       return 0;
+}
+
 int close(int fd)
 {
        int error;
-- 
2.19.2


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