bool Page::deleteObj(long long headerpos)
{
//reading the Page
tasking::RWLockGuard<> lock(m_rwLock, tasking::WRITE);
auto l_header = reinterpret_cast<HeaderMetaData*>(static_cast<char*>(m_header) + headerpos);
auto l_oid = l_header->getOID();
//start delete by calculating the start position and passing the hash of the obj name
deleteObj(l_header->getObjektType(), static_cast<char*>(m_body) + l_header->getPos());
//now its delete put the freetype ptr to the start
//of the "prepared" deleted object
auto l_free = m_free;
while (l_free->getNext() == 0)
l_free = reinterpret_cast<FreeType*>(reinterpret_cast<char*>(l_free) + l_free->getNext());
// now l_Free is the last element;
l_free->setNext(dist(l_free, static_cast<char*>(m_body) + l_header->getPos()));
// Delete header
l_free = m_headerFree;
while (l_free->getNext() == 0)
l_free = reinterpret_cast<FreeType*>(reinterpret_cast<char*>(l_free) + l_free->getNext());
//now we have the last free element of the header
//insert free type with the right size
auto l_deletedHeader = new(l_header) FreeType(sizeof(HeaderMetaData));
//set the freeType pointer to it
l_free->setNext(dist(l_free, l_deletedHeader));
//delete the obj of the idx
index::ObjectIndex::getInstance().erase(l_oid);
//do NOT delete the Meta! it is way faster to
//insert with meta then without so keep the data
return true;
}
// PD_TRACE_DECLARE_FUNCTION ( SDB_RTNLOCALLOBSTREAM__REMOVEV, "_rtnLocalLobStream::_removev" )
INT32 _rtnLocalLobStream::_removev( const RTN_LOB_TUPLES &tuples,
_pmdEDUCB *cb )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB_RTNLOCALLOBSTREAM__REMOVEV ) ;
dmsLobRecord record ;
for ( RTN_LOB_TUPLES::const_iterator itr = tuples.begin() ;
itr != tuples.end() ;
++itr )
{
record.set( &getOID(),
itr->tuple.columns.sequence,
itr->tuple.columns.offset,
itr->tuple.columns.len,
itr->data ) ;
rc = _su->lob()->remove( record, _mbContext, cb,
_getDPSCB() ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "failed to remove lob[%s],"
"sequence:%d, rc:%d", record._oid->str().c_str(),
record._sequence, rc ) ;
goto error ;
}
}
done:
PD_TRACE_EXITRC( SDB_RTNLOCALLOBSTREAM__REMOVEV, rc ) ;
return rc ;
error:
goto done ;
}
// PD_TRACE_DECLARE_FUNCTION ( SDB_RTNLOCALLOBSTREAM__ROLLBACK, "_rtnLocalLobStream::_rooback" )
INT32 _rtnLocalLobStream::_rollback( _pmdEDUCB *cb )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB_RTNLOCALLOBSTREAM__ROLLBACK ) ;
dmsLobRecord piece ;
INT32 num = _getSequence( curOffset() ) ;
while ( 0 < num )
{
--num ;
piece.set( &getOID(), num, 0, 0, NULL ) ;
rc = _su->lob()->remove( piece, _mbContext, cb,
_getDPSCB() ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to remove lob[%s],"
"sequence:%d, rc:%d", piece._oid->str().c_str(),
piece._sequence, rc ) ;
if ( SDB_LOB_SEQUENCE_NOT_EXIST != rc )
{
goto error ;
}
rc = SDB_OK ;
}
}
done:
PD_TRACE_EXITRC( SDB_RTNLOCALLOBSTREAM__ROLLBACK, rc ) ;
return rc ;
error:
goto done ;
}
INT32 _rtnLocalLobStream::_read( const _rtnLobTuple &tuple,
_pmdEDUCB *cb,
CHAR *buf )
{
INT32 rc = SDB_OK ;
UINT32 len = 0 ;
dmsLobRecord record ;
record.set( &getOID(),
tuple.tuple.columns.sequence,
tuple.tuple.columns.offset,
tuple.tuple.columns.len,
tuple.data ) ;
rc = _su->lob()->read( record, _mbContext, cb,
buf, len ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "failed to read lob[%s], sequence[%d], rc:%d",
record._oid->str().c_str(), record._sequence, rc ) ;
goto error ;
}
SDB_ASSERT( len == record._dataLen, "impossible" ) ;
done:
return rc ;
error:
goto done ;
}
// PD_TRACE_DECLARE_FUNCTION ( SDB_RTNLOCALLOBSTREAM__ENSURELOB, "_rtnLocalLobStream::_ensureLob" )
INT32 _rtnLocalLobStream::_ensureLob( _pmdEDUCB *cb,
_dmsLobMeta &meta,
BOOLEAN &isNew )
{
INT32 rc = SDB_OK ;
_dmsLobMeta tmpMeta ;
PD_TRACE_ENTRY( SDB_RTNLOCALLOBSTREAM__ENSURELOB ) ;
rc = _su->lob()->getLobMeta( getOID(), _mbContext,
cb, tmpMeta ) ;
if ( SDB_OK == rc )
{
if ( !tmpMeta.isDone() )
{
PD_LOG( PDINFO, "Lob[%s] meta[%s] is not available",
getOID().str().c_str(), tmpMeta.toString().c_str() ) ;
rc = SDB_LOB_IS_NOT_AVAILABLE ;
goto error ;
}
isNew = FALSE ;
goto done ;
}
else if ( SDB_FNE != rc )
{
PD_LOG( PDERROR, "Failed to get meta of lob, rc:%d", rc ) ;
goto error ;
}
else
{
rc = SDB_OK ;
isNew = TRUE ;
}
done:
PD_TRACE_EXITRC( SDB_RTNLOCALLOBSTREAM__ENSURELOB, rc ) ;
return rc ;
error:
goto done ;
}
// PD_TRACE_DECLARE_FUNCTION ( SDB_RTNLOCALLOBSTREAM__QUERYANDINVALIDATEMETADATA, "_rtnLocalLobStream::_queryAndInvalidateMetaData" )
INT32 _rtnLocalLobStream::_queryAndInvalidateMetaData( _pmdEDUCB *cb,
_dmsLobMeta &meta )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB_RTNLOCALLOBSTREAM__QUERYANDINVALIDATEMETADATA ) ;
rc = rtnQueryAndInvalidateLob( getFullName(), getOID(),
cb, 1, _getDPSCB(), meta,
NULL, NULL, TRUE ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "failed to invalidate lob:%d", rc ) ;
goto error ;
}
done:
PD_TRACE_EXITRC( SDB_RTNLOCALLOBSTREAM__QUERYANDINVALIDATEMETADATA, rc ) ;
return rc ;
error:
goto done ;
}
// PD_TRACE_DECLARE_FUNCTION ( SDB_RTNLOCALLOBSTREAM__WRITE, "_rtnLocalLobStream::_write" )
INT32 _rtnLocalLobStream::_write( const _rtnLobTuple &tuple,
_pmdEDUCB *cb, BOOLEAN orUpdate )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB_RTNLOCALLOBSTREAM__WRITE ) ;
_dmsLobRecord record ;
record.set( &getOID(),
tuple.tuple.columns.sequence,
tuple.tuple.columns.offset,
tuple.tuple.columns.len,
tuple.data ) ;
if ( orUpdate )
{
rc = _su->lob()->writeOrUpdate( record, _mbContext, cb,
_getDPSCB() ) ;
}
else
{
rc = _su->lob()->write( record, _mbContext, cb,
_getDPSCB() ) ;
}
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "failed to write lob[%s],"
"sequence:%d, rc:%d", record._oid->str().c_str(),
record._sequence, rc ) ;
goto error ;
}
done:
PD_TRACE_EXITRC( SDB_RTNLOCALLOBSTREAM__WRITE, rc ) ;
return rc ;
error:
goto done ;
}
std::shared_ptr<rapidjson::Document> Page::getJSONObject(long long headerpos)
{
//reading the Page
tasking::RWLockGuard<> lock(m_rwLock, tasking::READ);
//get the header first
auto l_header = reinterpret_cast<HeaderMetaData*>(static_cast<char*>(m_header) + headerpos);
//get the type
auto l_objectType = l_header->getObjektType();
//get the idx
auto& l_metaIdx = meta::MetaIndex::getInstance();
//get the meta dataset
auto& l_meta = l_metaIdx[l_objectType];
//create the document
auto l_obj = std::make_shared<rapidjson::Document>();
l_obj->SetObject();
//now generate the inner part of the object
rapidjson::Value l_value;
l_value.SetObject();
//calc the start id
void* start = (static_cast<char*>(m_body) + l_header->getPos());
auto temp = buildObject(l_objectType, start, l_value, l_obj->GetAllocator());
if(temp == nullptr)
{
LOG_WARN << "build failed id: " << l_header->getOID();
return nullptr;
}
//generate name
auto l_objName = l_meta->getName();
rapidjson::Value l_name(l_objName.c_str(), l_objName.length(), l_obj->GetAllocator());
//now add the inner object
l_obj->AddMember(l_name, l_value, l_obj->GetAllocator());
return l_obj;
}
void _rtnLocalLobStream::_closeInner( _pmdEDUCB *cb )
{
if ( _hasLobPrivilege )
{
sdbGetRTNCB()->getLobAccessManager()->releaseAccessPrivilege(
getFullName(), getOID(), _getMode(), uniqueId() ) ;
_hasLobPrivilege = FALSE ;
}
if ( _mbContext && _su )
{
_su->data()->releaseMBContext( _mbContext ) ;
_mbContext = NULL ;
}
if ( _su && _dmsCB )
{
sdbGetDMSCB()->suUnlock ( _su->CSID() ) ;
_su = NULL ;
}
if ( _writeDMS )
{
_dmsCB->writeDown( cb ) ;
_writeDMS = FALSE ;
}
}
OID OIDInfo::getOID(JSContext* cx, JS::HandleValue value) {
JS::RootedObject obj(cx, value.toObjectOrNull());
return getOID(cx, obj);
}
CTransfer::CTransfer(unsigned int oid, SERootObject* root)
: Transfer(oid, root)
{
fprintf(stdout,"New Transfer oid %d\n", getOID());
}
// PD_TRACE_DECLARE_FUNCTION ( SDB_RTNLOCALLOBSTREAM__UPDATE, "_rtnLocalLobStream::_update" )
INT32 _rtnLocalLobStream::_update( const _rtnLobTuple &tuple,
_pmdEDUCB *cb )
{
INT32 rc = SDB_OK ;
BOOLEAN accessInfoLocked = FALSE ;
PD_TRACE_ENTRY( SDB_RTNLOCALLOBSTREAM__UPDATE ) ;
dmsLobRecord record ;
const MsgLobTuple &t = tuple.tuple ;
CHAR* buf = NULL ;
record.set( &getOID(), t.columns.sequence, t.columns.offset,
t.columns.len, ( const CHAR * )tuple.data ) ;
if ( DMS_LOB_META_SEQUENCE == t.columns.sequence &&
SDB_LOB_MODE_WRITE == _getMode() &&
0 == t.columns.offset &&
t.columns.len >= sizeof(_dmsLobMeta) )
{
_rtnLobMetaCache* metaCache = NULL ;
const _dmsLobMeta* meta = (const _dmsLobMeta*)tuple.data ;
if ( meta->hasPiecesInfo() && t.columns.len < DMS_LOB_META_LENGTH )
{
rc = SDB_SYS ;
PD_LOG( PDERROR, "Invalid lob meta data length:%d, rc=%d",
t.columns.len, rc ) ;
goto error ;
}
SDB_ASSERT( NULL != _accessInfo, "_accessInfo is null" ) ;
_accessInfo->lock() ;
accessInfoLocked = TRUE ;
metaCache = _accessInfo->getMetaCache() ;
SDB_ASSERT( NULL != metaCache, "metaCache is null" ) ;
SDB_ASSERT( NULL != metaCache->lobMeta(), "lob meta cache is null" ) ;
if ( metaCache->needMerge() )
{
_rtnLobMetaCache newCache ;
rc = newCache.cache( *(metaCache->lobMeta()) ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to cache lob meta, rc=%d", rc ) ;
goto error ;
}
rc = newCache.merge( *meta, _su->getLobPageSize() ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to merge lob meta data, rc=%d", rc ) ;
goto error ;
}
SDB_ASSERT( NULL != newCache.lobMeta(), "new lob meta cache is null" ) ;
rc = metaCache->cache( *( newCache.lobMeta() ) ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to cache lob meta, rc=%d", rc ) ;
goto error ;
}
buf = (CHAR*)SDB_OSS_MALLOC( record._dataLen > DMS_LOB_META_LENGTH ?
record._dataLen : DMS_LOB_META_LENGTH ) ;
if ( NULL == buf )
{
rc = SDB_OOM ;
PD_LOG( PDERROR, "Failed to malloc buf, rc=%d", rc ) ;
goto error ;
}
ossMemset( buf, 0, DMS_LOB_META_LENGTH ) ;
ossMemcpy( buf, record._data, record._dataLen ) ;
record._data = (const CHAR*)buf ;
if ( newCache.lobMeta()->hasPiecesInfo() )
{
ossMemcpy( (void*)record._data, newCache.lobMeta(), DMS_LOB_META_LENGTH ) ;
if ( record._dataLen < DMS_LOB_META_LENGTH )
{
record._dataLen = DMS_LOB_META_LENGTH ;
}
}
else
{
ossMemcpy( (void*)record._data, newCache.lobMeta(), sizeof( _dmsLobMeta ) ) ;
}
}
else
{
rc = metaCache->cache( *meta ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to cache lob meta, rc=%d", rc ) ;
goto error ;
}
}
rc = _su->lob()->update( record, _mbContext, cb, _getDPSCB() ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "failed to update to lob:%d", rc ) ;
goto error ;
}
_accessInfo->unlock() ;
accessInfoLocked = FALSE ;
}
else
{
rc = _su->lob()->update( record, _mbContext, cb, _getDPSCB() ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "failed to update to lob:%d", rc ) ;
goto error ;
}
}
done:
if ( accessInfoLocked )
{
_accessInfo->unlock() ;
}
SAFE_OSS_FREE( buf ) ;
PD_TRACE_EXITRC( SDB_RTNLOCALLOBSTREAM__UPDATE, rc ) ;
return rc ;
error:
goto done ;
}
INT32 _rtnLocalLobStream::_queryLobMeta4Write( _pmdEDUCB *cb,
_dmsLobMeta &meta,
_rtnLobPiecesInfo* piecesInfo )
{
INT32 rc = SDB_OK ;
_rtnLobMetaCache* metaCache = NULL ;
const _dmsLobMeta* cachedMeta = NULL ;
BOOLEAN accessInfoLocked = FALSE ;
SDB_ASSERT( NULL != _accessInfo, "_accessInfo is null" ) ;
SDB_ASSERT( SDB_LOB_MODE_WRITE == _getMode(), "should be write mode" ) ;
_accessInfo->lock() ;
accessInfoLocked = TRUE ;
metaCache = _accessInfo->getMetaCache() ;
if ( NULL == metaCache )
{
metaCache = SDB_OSS_NEW _rtnLobMetaCache() ;
if ( NULL == metaCache )
{
rc = SDB_OOM ;
PD_LOG( PDERROR, "Failed to new _rtnLobMetaCache, rc:%d", rc ) ;
goto error ;
}
_accessInfo->setMetaCache( metaCache ) ;
}
else
{
metaCache->setNeedMerge( TRUE ) ;
}
cachedMeta = metaCache->lobMeta() ;
if ( NULL == cachedMeta )
{
UINT32 readLen = 0 ;
UINT32 len = DMS_LOB_META_LENGTH ;
CHAR* buf = NULL ;
dmsLobRecord record ;
_getPool().clear() ;
rc = _getPool().allocate( len, &buf ) ;
if ( rc )
{
PD_LOG( PDERROR, "Failed to alloc buffer[%u], rc: %d",
len, rc ) ;
goto error ;
}
record.set( &getOID(), DMS_LOB_META_SEQUENCE, 0, len, NULL ) ;
rc = _su->lob()->read( record, _mbContext, cb, buf, readLen ) ;
if ( SDB_OK == rc )
{
if ( readLen < sizeof( meta ) )
{
PD_LOG( PDERROR, "Read lob[%s]'s meta page len is less than "
"meta size[%u]", getOID().str().c_str(),
sizeof( meta ) ) ;
rc = SDB_SYS ;
goto error ;
}
ossMemcpy( &meta, buf, sizeof( meta ) ) ;
if ( !meta.isDone() )
{
PD_LOG( PDINFO, "Lob[%s] meta[%s] is not available",
getOID().str().c_str(), meta.toString().c_str() ) ;
rc = SDB_LOB_IS_NOT_AVAILABLE ;
goto error ;
}
if ( meta.hasPiecesInfo() && NULL != piecesInfo )
{
INT32 length = meta._piecesInfoNum * (INT32)sizeof( _rtnLobPieces ) ;
const CHAR* pieces = (const CHAR*)
( buf + DMS_LOB_META_LENGTH - length ) ;
rc = piecesInfo->readFrom( pieces, length ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDINFO, "Failed to read pieces info of Lob[%s]",
getOID().str().c_str() ) ;
goto error ;
}
}
rc = metaCache->cache( *(_dmsLobMeta*)buf ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDINFO, "Failed to cache meta data of Lob[%s]",
getOID().str().c_str() ) ;
goto error ;
}
}
else
{
if ( SDB_LOB_SEQUENCE_NOT_EXIST == rc )
{
rc = SDB_FNE ;
}
else if ( SDB_FNE != rc )
{
PD_LOG( PDERROR, "Failed to get meta of lob, rc:%d", rc ) ;
}
goto error ;
}
}
else
{
ossMemcpy( &meta, cachedMeta, sizeof( meta ) ) ;
if ( meta.hasPiecesInfo() && NULL != piecesInfo )
{
INT32 length = meta._piecesInfoNum *
(INT32)sizeof( _rtnLobPieces ) ;
rc = piecesInfo->readFrom( (CHAR*)cachedMeta + DMS_LOB_META_LENGTH - length,
length ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to read lob pieces info, rc:%d", rc ) ;
goto error ;
}
}
}
done:
if ( accessInfoLocked )
{
_accessInfo->unlock() ;
accessInfoLocked = FALSE ;
}
return rc ;
error:
goto done ;
}
// PD_TRACE_DECLARE_FUNCTION ( SDB_RTNLOCALLOBSTREAM__QUERYLOBMETA, "_rtnLocalLobStream::_queryLobMeta" )
INT32 _rtnLocalLobStream::_queryLobMeta( _pmdEDUCB *cb,
_dmsLobMeta &meta,
BOOLEAN allowUncompleted,
_rtnLobPiecesInfo* piecesInfo )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB_RTNLOCALLOBSTREAM__QUERYLOBMETA ) ;
UINT32 len = _su->getLobPageSize() ;
UINT32 readLen = 0 ;
CHAR *buf = NULL ;
dmsLobRecord record ;
if ( SDB_LOB_MODE_WRITE == _getMode() )
{
rc = _queryLobMeta4Write( cb, meta, piecesInfo ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to query meta for write, rc: %d", rc ) ;
goto error ;
}
goto done ;
}
_getPool().clear() ;
rc = _getPool().allocate( len, &buf ) ;
if ( rc )
{
PD_LOG( PDERROR, "Failed to alloc buffer[%u], rc: %d",
len, rc ) ;
goto error ;
}
record.set( &getOID(), DMS_LOB_META_SEQUENCE, 0, len, NULL ) ;
rc = _su->lob()->read( record, _mbContext, cb, buf, readLen ) ;
if ( SDB_OK == rc )
{
if ( readLen < sizeof( _dmsLobMeta ) )
{
PD_LOG( PDERROR, "Read lob[%s]'s meta page len is less than "
"meta size[%u]", getOID().str().c_str(),
sizeof( _dmsLobMeta ) ) ;
rc = SDB_SYS ;
goto error ;
}
ossMemcpy( (void*)&meta, buf, sizeof( meta ) ) ;
if ( !meta.isDone() && !allowUncompleted )
{
PD_LOG( PDINFO, "Lob[%s] meta[%s] is not available",
getOID().str().c_str(), meta.toString().c_str() ) ;
rc = SDB_LOB_IS_NOT_AVAILABLE ;
goto error ;
}
if ( 0 == meta._modificationTime )
{
meta._modificationTime = meta._createTime ;
}
if ( meta._version >= DMS_LOB_META_MERGE_DATA_VERSION &&
meta._lobLen > 0 &&
readLen > DMS_LOB_META_LENGTH )
{
rc = _getPool().push( buf + DMS_LOB_META_LENGTH,
( meta._lobLen <= readLen-DMS_LOB_META_LENGTH ?
meta._lobLen : readLen-DMS_LOB_META_LENGTH ),
0 ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to push data to pool, rc:%d", rc ) ;
goto error ;
}
_getPool().pushDone() ;
}
if ( NULL != piecesInfo &&
meta.hasPiecesInfo() )
{
INT32 length = meta._piecesInfoNum * (INT32)sizeof( _rtnLobPieces ) ;
const CHAR* piecesInfoBuf = (const CHAR*)
( buf + DMS_LOB_META_LENGTH - length ) ;
rc = piecesInfo->readFrom( piecesInfoBuf, length ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to read pieces info from meta, rc:%d", rc ) ;
goto error ;
}
}
goto done ;
}
else
{
if ( SDB_LOB_SEQUENCE_NOT_EXIST == rc )
{
rc = SDB_FNE ;
}
else if ( SDB_FNE != rc )
{
PD_LOG( PDERROR, "Failed to get meta of lob, rc:%d", rc ) ;
}
goto error ;
}
done:
PD_TRACE_EXITRC( SDB_RTNLOCALLOBSTREAM__QUERYLOBMETA, rc ) ;
return rc ;
error:
goto done ;
}
