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- Deprecated

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svn path=/trunk/; revision=19353
This commit is contained in:
Alex Ionescu 2005-11-19 22:32:09 +00:00
parent b8f8ea844f
commit 217fc0b603
1 changed files with 0 additions and 89 deletions
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89
reactos/ntoskrnl/cc/ccmutex.c
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@ -1,89 +0,0 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/cc/ccmutex.c
* PURPOSE: Implements the Broken Mutex Implementation for the broken Cc
* PROGRAMMERS: Alex Ionescu (alex@relsoft.net)
*/
/* INCLUDES *****************************************************************/
#include <ntoskrnl.h>
#include <internal/debug.h>
/* FUNCTIONS *****************************************************************/
VOID
FASTCALL
CcAcquireBrokenMutexUnsafe(PFAST_MUTEX FastMutex)
{
ASSERT(KeGetCurrentThread() == NULL ||
FastMutex->Owner != KeGetCurrentThread());
ASSERT(KeGetCurrentIrql() == APC_LEVEL ||
KeGetCurrentThread() == NULL ||
KeGetCurrentThread()->KernelApcDisable);
InterlockedIncrementUL(&FastMutex->Contention);
while (InterlockedExchange(&FastMutex->Count, 0) == 0)
{
KeWaitForSingleObject(&FastMutex->Gate,
Executive,
KernelMode,
FALSE,
NULL);
}
InterlockedDecrementUL(&FastMutex->Contention);
FastMutex->Owner = KeGetCurrentThread();
}
VOID
FASTCALL
CcReleaseBrokenMutexUnsafe(PFAST_MUTEX FastMutex)
{
ASSERT(KeGetCurrentThread() == NULL ||
FastMutex->Owner == KeGetCurrentThread());
ASSERT(KeGetCurrentIrql() == APC_LEVEL ||
KeGetCurrentThread() == NULL ||
KeGetCurrentThread()->KernelApcDisable);
FastMutex->Owner = NULL;
InterlockedExchange(&FastMutex->Count, 1);
if (FastMutex->Contention > 0)
{
KeSetEvent(&FastMutex->Gate, 0, FALSE);
}
}
VOID
FASTCALL
CcAcquireBrokenMutex(PFAST_MUTEX FastMutex)
{
KeEnterCriticalRegion();
CcAcquireBrokenMutexUnsafe(FastMutex);
}
VOID
FASTCALL
CcReleaseBrokenMutex(PFAST_MUTEX FastMutex)
{
CcReleaseBrokenMutexUnsafe(FastMutex);
KeLeaveCriticalRegion();
}
BOOLEAN
FASTCALL
CcTryToAcquireBrokenMutex(PFAST_MUTEX FastMutex)
{
KeEnterCriticalRegion();
if (InterlockedExchange(&FastMutex->Count, 0) == 1)
{
FastMutex->Owner = KeGetCurrentThread();
return(TRUE);
}
else
{
KeLeaveCriticalRegion();
return(FALSE);
}
}