From 3a4dd04b1152de1919831dfd6aaa32bb4c5b3147 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Iv=C3=A1n=20Matellanes?= <matellanesivan@gmail.com>
Date: Fri, 15 Jul 2016 10:26:56 +0100
Subject: [PATCH] msvcirt: Implement istream::isfx.
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Signed-off-by: Iván Matellanes <matellanes.ivan@gmail.com>
Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/msvcirt/msvcirt.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/dlls/msvcirt/msvcirt.c b/dlls/msvcirt/msvcirt.c
index 32c4698f5f8..6c0b9a4eb66 100644
--- a/dlls/msvcirt/msvcirt.c
+++ b/dlls/msvcirt/msvcirt.c
@@ -3097,7 +3097,12 @@ int __thiscall istream_ipfx(istream *this, int need)
 DEFINE_THISCALL_WRAPPER(istream_isfx, 4)
 void __thiscall istream_isfx(istream *this)
 {
-    FIXME("(%p) stub\n", this);
+    ios *base = istream_get_ios(this);
+
+    TRACE("(%p)\n", this);
+
+    ios_unlockbuf(base);
+    ios_unlock(base);
 }
 
 /* ?get@istream@@IAEAAV1@PADHH@Z */