[pschweitzer] 50616: [RTL] Minor code changes to RTL (one would call them "optimisation"). Added some missing paged code. Plus added useful asserts (used to catch r50615 bug!)

Author: pschweitzer
Date: Mon Feb  7 23:23:33 2011
New Revision: 50616

URL: http://svn.reactos.org/svn/reactos?rev=50616&view=rev
Log:
[RTL]
Minor code changes to RTL (one would call them "optimisation"). Added some
missing paged code.
Plus added useful asserts (used to catch r50615 bug!)

Modified:
    trunk/reactos/lib/rtl/nls.c
    trunk/reactos/lib/rtl/unicode.c

Modified: trunk/reactos/lib/rtl/nls.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/nls.c?rev=50616&am…
==============================================================================
--- trunk/reactos/lib/rtl/nls.c [iso-8859-1] (original)
+++ trunk/reactos/lib/rtl/nls.c [iso-8859-1] Mon Feb  7 23:23:33 2011
@@ -235,6 +235,8 @@
    ULONG Size = 0;
    ULONG i;
 
+   PAGED_CODE_RTL();
+
    if (NlsMbCodePageTag == FALSE)
    {
       /* single-byte code page */
@@ -299,6 +301,8 @@
                           ULONG MbSize)
 {
     ULONG Length = 0;
+
+    PAGED_CODE_RTL();
 
     if (!NlsMbCodePageTag)
     {
@@ -503,6 +507,8 @@
 {
    ULONG Size = 0;
    ULONG i;
+
+   PAGED_CODE_RTL();
 
    if (NlsMbCodePageTag == FALSE)
    {

Modified: trunk/reactos/lib/rtl/unicode.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/unicode.c?rev=5061…
==============================================================================
--- trunk/reactos/lib/rtl/unicode.c [iso-8859-1] (original)
+++ trunk/reactos/lib/rtl/unicode.c [iso-8859-1] Mon Feb  7 23:23:33 2011
@@ -76,7 +76,14 @@
 
     PAGED_CODE_RTL();
 
-    Length = RtlAnsiStringToUnicodeSize(AnsiSource);
+    if (NlsMbCodePageTag == FALSE)
+    {
+        Length = AnsiSource->Length * 2 + sizeof(WCHAR);
+    }
+    else
+    {
+        Length = RtlxAnsiStringToUnicodeSize(AnsiSource);
+    }
     if (Length > MAXUSHORT) return STATUS_INVALID_PARAMETER_2;
     UniDest->Length = (USHORT)Length - sizeof(WCHAR);
 
@@ -90,6 +97,9 @@
     {
         return STATUS_BUFFER_OVERFLOW;
     }
+
+    /* UniDest->MaximumLength must be even due to sizeof(WCHAR) being 2 */
+    ASSERT(!(UniDest->MaximumLength & 1) && UniDest->Length <=
UniDest->MaximumLength);
 
     Status = RtlMultiByteToUnicodeN(UniDest->Buffer,
                                     UniDest->Length,
@@ -122,6 +132,8 @@
 RtlxAnsiStringToUnicodeSize(IN PCANSI_STRING AnsiString)
 {
     ULONG Size;
+
+    PAGED_CODE_RTL();
 
     /* Convert from Mb String to Unicode Size */
     RtlMultiByteToUnicodeSize(&Size,
@@ -963,7 +975,16 @@
 
     PAGED_CODE_RTL();
 
-    Length = RtlUnicodeStringToAnsiSize(UniSource);
+    ASSERT(!(UniSource->Length & 1));
+
+    if (NlsMbCodePageTag == FALSE)
+    {
+        Length = (UniSource->Length + sizeof(WCHAR)) / sizeof(WCHAR);
+    }
+    else
+    {
+        Length = RtlxUnicodeStringToAnsiSize(UniSource);
+    }
     if (Length > MAXUSHORT) return STATUS_INVALID_PARAMETER_2;
 
     AnsiDest->Length = (USHORT)Length - sizeof(CHAR);
@@ -1953,6 +1974,10 @@
 {
     ULONG Size;
 
+    PAGED_CODE_RTL();
+
+    ASSERT(!(UnicodeString->Length & 1));
+
     /* Convert the Unicode String to Mb Size */
     RtlUnicodeToMultiByteSize(&Size,
                               UnicodeString->Buffer,