95 lines
1.9 KiB
C
95 lines
1.9 KiB
C
|
/*++
|
|||
|
|
|
|||
|
|
Copyright (c) 1991 Microsoft Corporation
|
|||
|
|
|
|||
|
|
Module Name:
|
|||
|
|
|
|||
|
|
cmwrapr2.c
|
|||
|
|
|
|||
|
|
Abstract:
|
|||
|
|
|
|||
|
|
This module contains the source for wrapper routines called by the
|
|||
|
|
hive code, which in turn call the appropriate NT routines. But not
|
|||
|
|
callable from user mode.
|
|||
|
|
|
|||
|
|
Author:
|
|||
|
|
|
|||
|
|
Steven R. Wood (stevewo) 21-Apr-1992
|
|||
|
|
|
|||
|
|
Revision History:
|
|||
|
|
|
|||
|
|
--*/
|
|||
|
|
|
|||
|
|
#include "cmp.h"
|
|||
|
|
|
|||
|
|
#ifdef ALLOC_PRAGMA
|
|||
|
|
#pragma alloc_text(PAGE,CmpFileSetSize)
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
extern KEVENT StartRegistryCommand;
|
|||
|
|
extern KEVENT EndRegistryCommand;
|
|||
|
|
|
|||
|
|
//
|
|||
|
|
// Write-Control:
|
|||
|
|
// CmpNoWrite is initially true. When set this way write and flush
|
|||
|
|
// do nothing, simply returning success. When cleared to FALSE, I/O
|
|||
|
|
// is enabled. This change is made after the I/O system is started
|
|||
|
|
// AND autocheck (chkdsk) has done its thing.
|
|||
|
|
//
|
|||
|
|
|
|||
|
|
extern BOOLEAN CmpNoWrite;
|
|||
|
|
|
|||
|
|
|
|||
|
|
BOOLEAN
|
|||
|
|
CmpFileSetSize(
|
|||
|
|
PHHIVE Hive,
|
|||
|
|
ULONG FileType,
|
|||
|
|
ULONG FileSize,
|
|||
|
|
ULONG OldFileSize
|
|||
|
|
)
|
|||
|
|
/*++
|
|||
|
|
|
|||
|
|
Routine Description:
|
|||
|
|
|
|||
|
|
This routine sets the size of a file. It must not return until
|
|||
|
|
the size is guaranteed, therefore, it does a flush.
|
|||
|
|
|
|||
|
|
It is environment specific.
|
|||
|
|
|
|||
|
|
This routine will force execution to the correct thread context.
|
|||
|
|
|
|||
|
|
Arguments:
|
|||
|
|
|
|||
|
|
Hive - Hive we are doing I/O for
|
|||
|
|
|
|||
|
|
FileType - which supporting file to use
|
|||
|
|
|
|||
|
|
FileSize - 32 bit value to set the file's size to
|
|||
|
|
|
|||
|
|
Return Value:
|
|||
|
|
|
|||
|
|
FALSE if failure
|
|||
|
|
TRUE if success
|
|||
|
|
|
|||
|
|
--*/
|
|||
|
|
{
|
|||
|
|
NTSTATUS status;
|
|||
|
|
|
|||
|
|
ASSERT(FIELD_OFFSET(CMHIVE, Hive) == 0);
|
|||
|
|
|
|||
|
|
ASSERT_CM_LOCK_OWNED_EXCLUSIVE();
|
|||
|
|
|
|||
|
|
//
|
|||
|
|
// Call the worker to do real work for us.
|
|||
|
|
//
|
|||
|
|
status = CmpDoFileSetSize(Hive,FileType,FileSize,OldFileSize);
|
|||
|
|
|
|||
|
|
if (!NT_SUCCESS(status)) {
|
|||
|
|
CmKdPrintEx((DPFLTR_CONFIG_ID,CML_BUGCHECK,"CmpFileSetSize:\n\t"));
|
|||
|
|
CmKdPrintEx((DPFLTR_CONFIG_ID,CML_BUGCHECK,"Failure: status = %08lx ", status));
|
|||
|
|
return FALSE;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return TRUE;
|
|||
|
|
}
|