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Use static buffer for DbgPrint message queueing instead of ExAllocatePool.

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svn path=/trunk/; revision=12002
This commit is contained in:
Gregor Anich
2004-12-10 18:31:04 +00:00
parent 5898f3701e
commit 821da7d6f9
1 changed files with 8 additions and 13 deletions
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reactos/ntoskrnl/dbg/print.c
+8 -13
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@@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: print.c,v 1.21 2004/12/10 14:58:25 blight Exp $
/* $Id: print.c,v 1.22 2004/12/10 18:31:04 blight Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@@ -62,11 +62,11 @@ DbgPrint(PCH Format, ...)
CHAR Buffer[1024];
va_list ap;
#ifdef SERIALIZE_DBGPRINT
# define MESSAGETABLE_SIZE 16
LONG MyTableIndex;
static LONG Lock = 0;
static LONG TableWriteIndex = 0, TableReadIndex = 0;
static PCHAR MessageTable[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
# define MESSAGETABLE_SIZE (sizeof (MessageTable) / sizeof (MessageTable[0]))
static CHAR MessageTable[MESSAGETABLE_SIZE][sizeof(Buffer)] = { { '\0' } };
#endif /* SERIALIZE_DBGPRINT */
/* init ansi string */
@@ -81,16 +81,11 @@ DbgPrint(PCH Format, ...)
/* check if we are already running */
if (InterlockedCompareExchange(&Lock, 1, 0) == 1)
{
PCHAR Dup;
Dup = ExAllocatePool(NonPagedPool, DebugString.Length + 1);
memcpy(Dup, DebugString.Buffer, DebugString.Length);
Dup[DebugString.Length] = '\0';
MyTableIndex = InterlockedIncrement(&TableWriteIndex) - 1;
InterlockedCompareExchange(&TableWriteIndex, 0, MESSAGETABLE_SIZE);
MyTableIndex %= MESSAGETABLE_SIZE;
if (MessageTable[MyTableIndex] != NULL) /* table is full */
if (MessageTable[MyTableIndex][0] != '\0') /* table is full */
{
DebugString.Buffer = "CRITICAL ERROR: DbgPrint Table is FULL!";
DebugString.Length = 39;
@@ -102,7 +97,8 @@ DbgPrint(PCH Format, ...)
/*DebugString.Buffer = "µµµ";
DebugString.Length = 3;
KdpPrintString(&DebugString);*/
MessageTable[MyTableIndex] = Dup;
memcpy(MessageTable[MyTableIndex], DebugString.Buffer, DebugString.Length);
MessageTable[MyTableIndex][DebugString.Length] = '\0';
}
}
else
@@ -111,19 +107,18 @@ DbgPrint(PCH Format, ...)
KdpPrintString (&DebugString);
#ifdef SERIALIZE_DBGPRINT
MyTableIndex = TableReadIndex;
while (MessageTable[MyTableIndex] != NULL)
while (MessageTable[MyTableIndex][0] != '\0')
{
/*DebugString.Buffer = "$$$";
DebugString.Length = 3;
KdpPrintString(&DebugString);*/
DebugString.Buffer = MessageTable[MyTableIndex];
MessageTable[MyTableIndex] = NULL;
DebugString.Length = strlen(DebugString.Buffer);
DebugString.MaximumLength = DebugString.Length + 1;
KdpPrintString(&DebugString);
ExFreePool(DebugString.Buffer);
MessageTable[MyTableIndex][0] = '\0';
MyTableIndex = InterlockedIncrement(&TableReadIndex);
InterlockedCompareExchange(&TableReadIndex, 0, MESSAGETABLE_SIZE);