mirror of
https://github.com/reactos/reactos.git
synced 2024-11-05 22:26:39 +00:00
c2d0d784c7
- Create a branch to do a proper merge of USB work from a trunk base instead of from cmake-bringup - In the future, DO NOT under any circumstances branch another branch. This leads to merge problems! svn path=/branches/usb-bringup-trunk/; revision=55018
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
|
|
* PROJECT: ReactOS Kernel
|
|
* LICENSE: GPL - See COPYING in the top level directory
|
|
* FILE: ntoskrnl/ke/freeze.c
|
|
* PURPOSE: Routines for freezing and unfreezing processors for
|
|
* kernel debugger synchronization.
|
|
* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
|
|
*/
|
|
|
|
/* INCLUDES *******************************************************************/
|
|
|
|
#include <ntoskrnl.h>
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
/* GLOBALS ********************************************************************/
|
|
|
|
/* Freeze data */
|
|
KIRQL KiOldIrql;
|
|
ULONG KiFreezeFlag;
|
|
|
|
/* FUNCTIONS ******************************************************************/
|
|
|
|
BOOLEAN
|
|
NTAPI
|
|
KeFreezeExecution(IN PKTRAP_FRAME TrapFrame,
|
|
IN PKEXCEPTION_FRAME ExceptionFrame)
|
|
{
|
|
BOOLEAN Enable;
|
|
|
|
/* Disable interrupts and get previous state */
|
|
Enable = KeDisableInterrupts();
|
|
|
|
/* Save freeze flag */
|
|
KiFreezeFlag = 4;
|
|
|
|
/* Save the old IRQL */
|
|
KiOldIrql = KeGetCurrentIrql();
|
|
|
|
/* Return whether interrupts were enabled */
|
|
return Enable;
|
|
}
|
|
|
|
VOID
|
|
NTAPI
|
|
KeThawExecution(IN BOOLEAN Enable)
|
|
{
|
|
/* Cleanup CPU caches */
|
|
KeFlushCurrentTb();
|
|
|
|
/* Re-enable interrupts */
|
|
if (Enable) _enable();
|
|
}
|