[PATCH 0/1] MR892: ntdll: Add a fast path for NtDeviceIoControlFile(INVALID_HANDLE_VALUE).

[Zebediah Figura (＠zfigura)]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53706

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/892

[PATCH 1/1] ntdll: Add a fast path for NtDeviceIoControlFile(INVALID_HANDLE_VALUE).

[Zebediah Figura]

From: Zebediah Figura <zfigura(a)codeweavers.com>

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53706
---
 dlls/ntdll/unix/file.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/dlls/ntdll/unix/file.c b/dlls/ntdll/unix/file.c
index b31ce4fbb3d..7eb8dbe7ad4 100644
--- a/dlls/ntdll/unix/file.c
+++ b/dlls/ntdll/unix/file.c
@@ -5760,6 +5760,11 @@ NTSTATUS WINAPI NtDeviceIoControlFile( HANDLE handle, HANDLE event, PIO_APC_ROUT
     TRACE( "(%p,%p,%p,%p,%p,0x%08x,%p,0x%08x,%p,0x%08x)\n",
            handle, event, apc, apc_context, io, code, in_buffer, in_size, out_buffer, out_size );
 
+    /* some broken applications call this frequently with INVALID_HANDLE_VALUE,
+     * and run slowly if we make a server call every time */
+    if (HandleToLong( handle ) == ~0)
+        return STATUS_INVALID_HANDLE;
+
     switch (device)
     {
     case FILE_DEVICE_BEEP:
-- 
GitLab

https://gitlab.winehq.org/wine/wine/-/merge_requests/892