Revision: 13946
http://edk2.svn.sourceforge.net/edk2/?rev=13946&view=rev
Author: niruiyu
Date: 2012-11-15 06:31:43 +0000 (Thu, 15 Nov 2012)
Log Message:
-----------
Enhance CreatePopup to call ReadKeyStroke() before calling WaitForEvent(). This
can handle the case when in lazy ConIn mode.
Signed-off-by: Ruiyu Ni<[email protected]>
Reviewed-by: Eric Dong<[email protected]>
Modified Paths:
--------------
trunk/edk2/IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c
Modified: trunk/edk2/IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c
===================================================================
--- trunk/edk2/IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c
2012-11-15 06:31:25 UTC (rev 13945)
+++ trunk/edk2/IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c
2012-11-15 06:31:43 UTC (rev 13946)
@@ -1,7 +1,7 @@
/** @file
This module provide help function for displaying unicode string.
- Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -314,6 +314,7 @@
...
)
{
+ EFI_STATUS Status;
VA_LIST Args;
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ConOut;
EFI_SIMPLE_TEXT_OUTPUT_MODE SavedConsoleMode;
@@ -457,7 +458,19 @@
// Wait for a keystroke
//
if (Key != NULL) {
- gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex);
- gST->ConIn->ReadKeyStroke (gST->ConIn, Key);
+ while (TRUE) {
+ Status = gST->ConIn->ReadKeyStroke (gST->ConIn, Key);
+ if (!EFI_ERROR (Status)) {
+ break;
+ }
+
+ //
+ // If we encounter error, continue to read another key in.
+ //
+ if (Status != EFI_NOT_READY) {
+ continue;
+ }
+ gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex);
+ }
}
}
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