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/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
ResrcSup.c
Abstract:
This module implements the NamedPipe Resource acquisition routines
Author:
Gary Kimura [GaryKi] 22-Mar-1990
Revision History:
--*/
#include "NpProcs.h"
//
// The debug trace level
//
#define Dbg (DEBUG_TRACE_RESRCSUP)
#ifdef ALLOC_PRAGMA
#pragma alloc_text(PAGE, NpAcquireExclusiveCcb)
#pragma alloc_text(PAGE, NpAcquireExclusiveVcb)
#pragma alloc_text(PAGE, NpAcquireSharedCcb)
#pragma alloc_text(PAGE, NpAcquireSharedVcb)
#pragma alloc_text(PAGE, NpReleaseCcb)
#pragma alloc_text(PAGE, NpReleaseVcb)
#endif
VOID
NpAcquireExclusiveVcb (
)
/*++
Routine Description:
This routine acquires exclusive access to the Vcb
Arguments:
Return Value:
None.
--*/
{
PAGED_CODE();
DebugTrace(+1, Dbg, "NpAcquireExclusiveVcb\n", 0);
ExAcquireResourceExclusive( &(NpVcb->Resource), TRUE );
DebugTrace(-1, Dbg, "NpAcquireExclusiveVcb -> (VOID)\n", 0);
return;
}
VOID
NpAcquireSharedVcb (
)
/*++
Routine Description:
This routine acquires shared access to the Vcb
Arguments:
Return Value:
None.
--*/
{
PAGED_CODE();
DebugTrace(+1, Dbg, "NpAcquireSharedVcb\n", 0);
ExAcquireResourceShared( &(NpVcb->Resource), TRUE );
DebugTrace(-1, Dbg, "NpAcquireSharedVcb -> (VOID)\n", 0);
return;
}
VOID
NpAcquireExclusiveCcb (
IN PNONPAGED_CCB NonpagedCcb
)
/*++
Routine Description:
This routine acquires exclusive access to the Ccb by first getting
shared access to the Fcb.
Arguments:
NonpagedCcb - Supplies the Ccb to acquire
Return Value:
None.
--*/
{
PAGED_CODE();
DebugTrace(+1, Dbg, "NpAcquireExclusiveCcb, NonpagedCcb = %08lx\n", NonpagedCcb);
(VOID)ExAcquireResourceShared( &(NpVcb->Resource), TRUE );
(VOID)ExAcquireResourceExclusive( &(NonpagedCcb->Resource), TRUE );
DebugTrace(-1, Dbg, "NpAcquireExclusiveCcb -> (VOID)\n", 0);
return;
}
VOID
NpAcquireSharedCcb (
IN PNONPAGED_CCB NonpagedCcb
)
/*++
Routine Description:
This routine acquires shared access to the Ccb by first getting
shared access to the Fcb.
Arguments:
NonpagedCcb - Supplies the Ccb to acquire
Return Value:
None.
--*/
{
PAGED_CODE();
DebugTrace(+1, Dbg, "NpAcquireSharedCcb, NonpagedCcb = %08lx\n", NonpagedCcb);
(VOID)ExAcquireResourceShared( &(NpVcb->Resource), TRUE );
(VOID)ExAcquireResourceShared( &(NonpagedCcb->Resource), TRUE );
DebugTrace(-1, Dbg, "NpAcquireSharedCcb -> (VOID)\n", 0);
return;
}
VOID
NpReleaseVcb (
)
/*++
Routine Description:
This routine releases access to the Vcb
Arguments:
Return Value:
None.
--*/
{
PAGED_CODE();
DebugTrace(0, Dbg, "NpReleaseVcb\n", 0);
ExReleaseResource( &(NpVcb->Resource) );
return;
}
VOID
NpReleaseCcb (
IN PNONPAGED_CCB NonpagedCcb
)
/*++
Routine Description:
This routine releases access to the Ccb
Arguments:
Ccb - Supplies the Ccb being released
Return Value:
None.
--*/
{
PAGED_CODE();
DebugTrace(0, Dbg, "NpReleaseCcb, NonpagedCcb = %08lx\n", NonpagedCcb);
ExReleaseResource( &(NonpagedCcb->Resource) );
ExReleaseResource( &(NpVcb->Resource) );
return;
}
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