mars_nwe/mars-flaim
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Ported FLAIM to FTK.

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git-svn-id: https://svn.code.sf.net/p/flaim/code/trunk@509 0109f412-320b-0410-ab79-c3e0c5ffbbe6
This commit is contained in:
ahodgkinson
2006-06-05 22:59:36 +00:00
parent 728ce20c8d
commit 7de8b6be39
188 changed files with 7093 additions and 73582 deletions
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89
flaim/src/lock.cpp
View File

@@ -29,7 +29,7 @@ Desc: Obtains a a lock on the database.
****************************************************************************/
FLMEXP RCODE FLMAPI FlmDbLock(
HFDB hDb,
FLOCK_TYPE eLockType,
eLockType lockType,
FLMINT iPriority,
FLMUINT uiTimeout)
{
@@ -57,7 +57,7 @@ FLMEXP RCODE FLMAPI FlmDbLock(
}
if (RC_BAD( rc = Wire.sendNumber( WIRE_VALUE_NUMBER1,
(FLMUINT)eLockType)))
(FLMUINT)lockType)))
{
goto Transmission_Error;
}
@@ -104,9 +104,9 @@ Transmission_Error:
goto Exit;
}
// eLockType better be exclusive or shared
// lockType better be exclusive or shared
if ((eLockType != FLM_LOCK_EXCLUSIVE) && (eLockType != FLM_LOCK_SHARED))
if ((lockType != FLM_LOCK_EXCLUSIVE) && (lockType != FLM_LOCK_SHARED))
{
rc = RC_SET( FERR_ILLEGAL_OP);
goto Exit;
@@ -125,19 +125,19 @@ Transmission_Error:
// Attempt to acquire the lock.
if (RC_BAD( rc = pDb->pFile->pFileLockObj->Lock( TRUE, pDb, FALSE,
(FLMBOOL)((eLockType == FLM_LOCK_EXCLUSIVE)
? (FLMBOOL)TRUE
: (FLMBOOL)FALSE),
uiTimeout, iPriority,
pDb->pDbStats)))
if (RC_BAD( rc = pDb->pFile->pFileLockObj->lock( pDb->hWaitSem,
(FLMBOOL)((lockType == FLM_LOCK_EXCLUSIVE)
? (FLMBOOL)TRUE
: (FLMBOOL)FALSE),
uiTimeout, iPriority,
pDb->pDbStats ? &pDb->pDbStats->LockStats : NULL)))
{
goto Exit;
}
pDb->uiFlags |= FDB_HAS_FILE_LOCK;
if (eLockType == FLM_LOCK_SHARED)
if (lockType == FLM_LOCK_SHARED)
{
pDb->uiFlags |= FDB_FILE_LOCK_SHARED;
}
@@ -221,7 +221,7 @@ Transmission_Error:
// Unlock the file.
if (RC_BAD( rc = pDb->pFile->pFileLockObj->Unlock( TRUE, pDb)))
if (RC_BAD( rc = pDb->pFile->pFileLockObj->unlock()))
{
goto Exit;
}
@@ -241,56 +241,22 @@ Exit:
return( rc);
}
/****************************************************************************
Desc : Returns information about current and pending locks on the
database.
****************************************************************************/
FLMEXP RCODE FLMAPI FlmDbGetLockInfo(
HFDB hDb,
FLMINT iPriority,
FLOCK_INFO * pLockInfo)
{
RCODE rc = FERR_OK;
FDB * pDb = NULL;
FLMBOOL bIgnore;
if (IsInCSMode( hDb))
{
rc = RC_SET( FERR_NOT_IMPLEMENTED);
goto Exit;
}
pDb = (FDB *)hDb;
if (RC_BAD( rc = fdbInit( pDb, FLM_NO_TRANS,
FDB_TRANS_GOING_OK, 0, &bIgnore)))
{
goto Exit;
}
pDb->pFile->pFileLockObj->GetLockInfo( iPriority, pLockInfo);
Exit:
flmExit( FLM_DB_GET_LOCK_INFO, pDb, rc);
return( rc);
}
/****************************************************************************
Desc : Returns information about the lock held by the specified database
handle.
****************************************************************************/
FLMEXP RCODE FLMAPI FlmDbGetLockType(
HFDB hDb,
FLOCK_TYPE * peLockType,
eLockType * pLockType,
FLMBOOL * pbImplicit)
{
RCODE rc = FERR_OK;
FDB * pDb = NULL;
FLMBOOL bIgnore;
if( peLockType)
if( pLockType)
{
*peLockType = FLM_LOCK_NONE;
*pLockType = FLM_LOCK_NONE;
}
if( pbImplicit)
@@ -313,15 +279,15 @@ FLMEXP RCODE FLMAPI FlmDbGetLockType(
if( pDb->uiFlags & FDB_HAS_FILE_LOCK)
{
if( peLockType)
if( pLockType)
{
if( pDb->uiFlags & FDB_FILE_LOCK_SHARED)
{
*peLockType = FLM_LOCK_SHARED;
*pLockType = FLM_LOCK_SHARED;
}
else
{
*peLockType = FLM_LOCK_EXCLUSIVE;
*pLockType = FLM_LOCK_EXCLUSIVE;
}
}
@@ -363,8 +329,8 @@ RCODE dbLock(
if (!(pDb->uiFlags & FDB_HAS_FILE_LOCK))
{
if (RC_BAD( rc = pFile->pFileLockObj->Lock( TRUE, pDb, FALSE, TRUE,
uiMaxLockWait, 0, pDb->pDbStats)))
if (RC_BAD( rc = pFile->pFileLockObj->lock( pDb->hWaitSem, TRUE,
uiMaxLockWait, 0, pDb->pDbStats ? &pDb->pDbStats->LockStats : NULL)))
{
goto Exit;
}
@@ -372,10 +338,13 @@ RCODE dbLock(
pDb->uiFlags |= (FDB_HAS_FILE_LOCK | FDB_FILE_LOCK_IMPLICIT);
}
if( RC_OK( rc = dbWriteLock( pFile, pDb->pDbStats)))
if (RC_BAD( rc = pFile->pWriteLockObj->lock( pDb->hWaitSem, TRUE,
uiMaxLockWait, 0, pDb->pDbStats ? &pDb->pDbStats->LockStats : NULL)))
{
pDb->uiFlags |= FDB_HAS_WRITE_LOCK;
goto Exit;
}
pDb->uiFlags |= FDB_HAS_WRITE_LOCK;
Exit:
@@ -383,7 +352,7 @@ Exit:
{
if (bGotFileLock)
{
(void)pFile->pFileLockObj->Unlock( TRUE, pDb);
(void)pFile->pFileLockObj->unlock();
pDb->uiFlags &= (~(FDB_HAS_FILE_LOCK |
FDB_FILE_LOCK_IMPLICIT | FDB_HAS_WRITE_LOCK));
}
@@ -400,7 +369,7 @@ Exit:
{
if (bGotFileLock)
{
(void)pFile->pFileLockObj->Unlock( TRUE, pDb);
(void)pFile->pFileLockObj->unlock();
pDb->uiFlags &= (~(FDB_HAS_FILE_LOCK |
FDB_FILE_LOCK_IMPLICIT | FDB_HAS_WRITE_LOCK));
}
@@ -422,14 +391,14 @@ RCODE dbUnlock(
flmAssert( pDb->uiFlags & FDB_HAS_WRITE_LOCK);
dbWriteUnlock( pDb->pFile, pDb->pDbStats);
pDb->pFile->pWriteLockObj->unlock();
pDb->uiFlags &= ~FDB_HAS_WRITE_LOCK;
// Give up the file lock, if it was acquired implicitly.
if (pDb->uiFlags & FDB_FILE_LOCK_IMPLICIT)
{
if (RC_OK( rc = pDb->pFile->pFileLockObj->Unlock( TRUE, pDb)))
if (RC_OK( rc = pDb->pFile->pFileLockObj->unlock()))
{
pDb->uiFlags &=
(~(FDB_HAS_FILE_LOCK | FDB_FILE_LOCK_IMPLICIT));