From b65e65ac17c9891397de4816e6c414a1270b1b9c Mon Sep 17 00:00:00 2001
From: Thomas Faber <thomas.faber@reactos.org>
Date: Thu, 11 Aug 2011 08:50:46 +0000
Subject: [PATCH] [KMTESTS] - Handle WriteConsole's inability to write large
 buffers

svn path=/branches/GSoC_2011/KMTestSuite/; revision=53175
---
 kmtests/kmtest/kmtest.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/kmtests/kmtest/kmtest.c b/kmtests/kmtest/kmtest.c
index ab2bbc47be7..e49d2617987 100644
--- a/kmtests/kmtest/kmtest.c
+++ b/kmtests/kmtest/kmtest.c
@@ -219,11 +219,20 @@ OutputResult(
 {
     DWORD Error = ERROR_SUCCESS;
     DWORD BytesWritten;
+    DWORD LogBufferLength;
+    DWORD Offset = 0;
+    /* WriteConsole seems to handle at most ~32kB */
+    const DWORD BlockSize = 8 * 1024;
 
     KmtFinishTest(TestName);
 
-    if (!WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), ResultBuffer->LogBuffer, ResultBuffer->LogBufferLength, &BytesWritten, NULL))
-        error(Error);
+    LogBufferLength = ResultBuffer->LogBufferLength;
+    for (Offset = 0; Offset < LogBufferLength; Offset += BlockSize)
+    {
+        DWORD Length = min(LogBufferLength - Offset, BlockSize);
+        if (!WriteConsoleA(GetStdHandle(STD_OUTPUT_HANDLE), ResultBuffer->LogBuffer + Offset, Length, &BytesWritten, NULL))
+            error(Error);
+    }
 
     return Error;
 }