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cmsubs3.c File Reference

#include "cmp.h"

Go to the source code of this file.

Functions

VOID CmpLockRegistry (VOID)
VOID CmpLockRegistryExclusive (VOID)
VOID CmpUnlockRegistry ()

Variables

ERESOURCE CmpRegistryLock
PVOID CmpCaller
PVOID CmpCallerCaller

Function Documentation

VOID CmpLockRegistry (  VOID   ) 
 

Definition at line 44 of file cmsubs3.c.

References CML_FLOW, CMLOG, CmpRegistryLock, CMS_LOCKING, ExAcquireResourceShared, KeEnterCriticalRegion, RtlGetCallersAddress(), and TRUE. 

00049                    :
00050 
00051     Lock the registry for shared (read-only) access
00052 
00053 Arguments:
00054 
00055     None.
00056 
00057 Return Value:
00058 
00059     None, the registry lock will be held for shared access upon return.
00060 
00061 --*/
00062 {
00063     #if DBG
00064     PVOID       Caller;
00065     PVOID       CallerCaller;
00066     #endif
00067 
00068     KeEnterCriticalRegion();
00069     ExAcquireResourceShared(&CmpRegistryLock, TRUE);
00070 
00071     #if DBG
00072     RtlGetCallersAddress(&Caller, &CallerCaller);
00073     CMLOG(CML_FLOW, CMS_LOCKING) {
00074         KdPrint(("CmpLockRegistry: c, cc: %08lx  %08lx\n", Caller, CallerCaller));
00075     }
00076     #endif
00077 
00078 }

VOID CmpLockRegistryExclusive (  VOID   ) 
 

Definition at line 81 of file cmsubs3.c.

References CmpCaller, CmpCallerCaller, CmpRegistryLock, ExAcquireResourceExclusive, KeEnterCriticalRegion, RtlGetCallersAddress(), Status, and TRUE.

Referenced by CmDeleteKey(), CmDeleteValueKey(), CmGetSystemDriverList(), CmInitSystem1(), CmNotifyRunDown(), CmpCloneControlSet(), CmpCloneHwProfile(), CmpFileSetSize(), CmpInitHiveFromFile(), CmpLoadHiveVolatile(), CmpRefreshHive(), CmpSaveBootControlSet(), CmpSaveKeyByFileCopy(), CmpSecurityMethod(), CmReplaceKey(), CmRestoreKey(), CmSaveKey(), CmSaveMergedKeys(), CmSetLastWriteTimeKey(), CmSetValueKey(), CmShutdownSystem(), CmUnloadKey(), NtCreateKey(), NtInitializeRegistry(), NtNotifyChangeMultipleKeys(), NtQueryOpenSubKeys(), and NtUnloadKey(). 

00086                    :
00087 
00088     Lock the registry for exclusive (write) access.
00089 
00090 Arguments:
00091 
00092     CanWait - Supplies whether or not the call should wait
00093               for the resource or return immediately.
00094 
00095               If CanWait is TRUE, this will always return
00096               TRUE.
00097 
00098 Return Value:
00099 
00100     TRUE - Lock was acquired exclusively
00101 
00102     FALSE - Lock is owned by another thread.
00103 
00104 --*/
00105 {
00106     BOOLEAN Status;
00107 
00108 
00109     KeEnterCriticalRegion();
00110     ExAcquireResourceExclusive(&CmpRegistryLock,TRUE);
00111 
00112     RtlGetCallersAddress(&CmpCaller, &CmpCallerCaller);
00113 }

VOID CmpUnlockRegistry (   ) 
 

Definition at line 116 of file cmsubs3.c.

References ASSERT_CM_LOCK_OWNED, CmpRegistryLock, ExReleaseResource, and KeLeaveCriticalRegion. 

00120                    :
00121 
00122     Unlock the registry.
00123 
00124 --*/
00125 {
00126     ASSERT_CM_LOCK_OWNED();
00127     ExReleaseResource(&CmpRegistryLock);
00128     KeLeaveCriticalRegion();
00129 }

Variable Documentation

PVOID CmpCaller
 

Definition at line 40 of file cmsubs3.c.

Referenced by CmpLockRegistryExclusive().

PVOID CmpCallerCaller
 

Definition at line 41 of file cmsubs3.c.

Referenced by CmpLockRegistryExclusive().

ERESOURCE CmpRegistryLock
 

Definition at line 38 of file cmsubs3.c.

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