Restore.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:23k
- /* Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #include "Restore.hpp"
- #include <NdbTCP.h>
- #include <OutputStream.hpp>
- #include <Bitmask.hpp>
- #include <AttributeHeader.hpp>
- #include <trigger_definitions.h>
- #include <SimpleProperties.hpp>
- #include <signaldata/DictTabInfo.hpp>
- Uint16 Twiddle16(Uint16 in); // Byte shift 16-bit data
- Uint32 Twiddle32(Uint32 in); // Byte shift 32-bit data
- Uint64 Twiddle64(Uint64 in); // Byte shift 64-bit data
- bool
- BackupFile::Twiddle(const AttributeDesc* attr_desc, AttributeData* attr_data, Uint32 arraySize){
- Uint32 i;
- if(m_hostByteOrder)
- return true;
-
- if(arraySize == 0){
- arraySize = attr_desc->arraySize;
- }
-
- switch(attr_desc->size){
- case 8:
-
- return true;
- case 16:
- for(i = 0; i<arraySize; i++){
- attr_data->u_int16_value[i] = Twiddle16(attr_data->u_int16_value[i]);
- }
- return true;
- case 32:
- for(i = 0; i<arraySize; i++){
- attr_data->u_int32_value[i] = Twiddle32(attr_data->u_int32_value[i]);
- }
- return true;
- case 64:
- for(i = 0; i<arraySize; i++){
- attr_data->u_int64_value[i] = Twiddle64(attr_data->u_int64_value[i]);
- }
- return true;
- default:
- return false;
- } // switch
- } // Twiddle
- FilteredNdbOut err(* new FileOutputStream(stderr), 0, 0);
- FilteredNdbOut info(* new FileOutputStream(stdout), 1, 1);
- FilteredNdbOut debug(* new FileOutputStream(stdout), 2, 0);
- // To decide in what byte order data is
- const Uint32 magicByteOrder = 0x12345678;
- const Uint32 swappedMagicByteOrder = 0x78563412;
- RestoreMetaData::RestoreMetaData(const char* path, Uint32 nodeId, Uint32 bNo) {
-
- debug << "RestoreMetaData constructor" << endl;
- setCtlFile(nodeId, bNo, path);
- }
- RestoreMetaData::~RestoreMetaData(){
- for(Uint32 i= 0; i < allTables.size(); i++)
- delete allTables[i];
- allTables.clear();
- }
- TableS *
- RestoreMetaData::getTable(Uint32 tableId) const {
- for(Uint32 i= 0; i < allTables.size(); i++)
- if(allTables[i]->getTableId() == tableId)
- return allTables[i];
- return NULL;
- }
- Uint32
- RestoreMetaData::getStopGCP() const {
- return m_stopGCP;
- }
- int
- RestoreMetaData::loadContent()
- {
- Uint32 noOfTables = readMetaTableList();
- if(noOfTables == 0) {
- return 1;
- }
- for(Uint32 i = 0; i<noOfTables; i++){
- if(!readMetaTableDesc()){
- return 0;
- }
- }
- if(!readGCPEntry())
- return 0;
- return 1;
- }
- Uint32
- RestoreMetaData::readMetaTableList() {
-
- Uint32 sectionInfo[2];
-
- if (buffer_read(§ionInfo, sizeof(sectionInfo), 1) != 1){
- err << "readMetaTableList read header error" << endl;
- return 0;
- }
- sectionInfo[0] = ntohl(sectionInfo[0]);
- sectionInfo[1] = ntohl(sectionInfo[1]);
- const Uint32 tabCount = sectionInfo[1] - 2;
- void *tmp;
- if (buffer_get_ptr(&tmp, 4, tabCount) != tabCount){
- err << "readMetaTableList read tabCount error" << endl;
- return 0;
- }
-
- return tabCount;
- }
- bool
- RestoreMetaData::readMetaTableDesc() {
-
- Uint32 sectionInfo[2];
-
- // Read section header
- if (buffer_read(§ionInfo, sizeof(sectionInfo), 1) != 1){
- err << "readMetaTableDesc read header error" << endl;
- return false;
- } // if
- sectionInfo[0] = ntohl(sectionInfo[0]);
- sectionInfo[1] = ntohl(sectionInfo[1]);
-
- assert(sectionInfo[0] == BackupFormat::TABLE_DESCRIPTION);
-
- // Read dictTabInfo buffer
- const Uint32 len = (sectionInfo[1] - 2);
- void *ptr;
- if (buffer_get_ptr(&ptr, 4, len) != len){
- err << "readMetaTableDesc read error" << endl;
- return false;
- } // if
-
- return parseTableDescriptor((Uint32*)ptr, len);
- }
- bool
- RestoreMetaData::readGCPEntry() {
- Uint32 data[4];
-
- BackupFormat::CtlFile::GCPEntry * dst =
- (BackupFormat::CtlFile::GCPEntry *)&data[0];
-
- if(buffer_read(dst, 4, 4) != 4){
- err << "readGCPEntry read error" << endl;
- return false;
- }
-
- dst->SectionType = ntohl(dst->SectionType);
- dst->SectionLength = ntohl(dst->SectionLength);
-
- if(dst->SectionType != BackupFormat::GCP_ENTRY){
- err << "readGCPEntry invalid format" << endl;
- return false;
- }
-
- dst->StartGCP = ntohl(dst->StartGCP);
- dst->StopGCP = ntohl(dst->StopGCP);
-
- m_startGCP = dst->StartGCP;
- m_stopGCP = dst->StopGCP;
- return true;
- }
- TableS::TableS(Uint32 version, NdbTableImpl* tableImpl)
- : m_dictTable(tableImpl)
- {
- m_dictTable = tableImpl;
- m_noOfNullable = m_nullBitmaskSize = 0;
- m_auto_val_id= ~(Uint32)0;
- m_max_auto_val= 0;
- backupVersion = version;
-
- for (int i = 0; i < tableImpl->getNoOfColumns(); i++)
- createAttr(tableImpl->getColumn(i));
- }
- TableS::~TableS()
- {
- for (Uint32 i= 0; i < allAttributesDesc.size(); i++)
- delete allAttributesDesc[i];
- }
- // Parse dictTabInfo buffer and pushback to to vector storage
- bool
- RestoreMetaData::parseTableDescriptor(const Uint32 * data, Uint32 len)
- {
- NdbTableImpl* tableImpl = 0;
- int ret = NdbDictInterface::parseTableInfo(&tableImpl, data, len, false);
- if (ret != 0) {
- err << "parseTableInfo " << " failed" << endl;
- return false;
- }
- if(tableImpl == 0)
- return false;
- debug << "parseTableInfo " << tableImpl->getName() << " done" << endl;
- TableS * table = new TableS(m_fileHeader.NdbVersion, tableImpl);
- if(table == NULL) {
- return false;
- }
- debug << "Parsed table id " << table->getTableId() << endl;
- debug << "Parsed table #attr " << table->getNoOfAttributes() << endl;
- debug << "Parsed table schema version not used " << endl;
- debug << "Pushing table " << table->getTableName() << endl;
- debug << " with " << table->getNoOfAttributes() << " attributes" << endl;
-
- allTables.push_back(table);
- return true;
- }
- // Constructor
- RestoreDataIterator::RestoreDataIterator(const RestoreMetaData & md, void (* _free_data_callback)())
- : BackupFile(_free_data_callback), m_metaData(md)
- {
- debug << "RestoreDataIterator constructor" << endl;
- setDataFile(md, 0);
- }
- TupleS & TupleS::operator=(const TupleS& tuple)
- {
- prepareRecord(*tuple.m_currentTable);
- if (allAttrData)
- memcpy(allAttrData, tuple.allAttrData, getNoOfAttributes()*sizeof(AttributeData));
-
- return *this;
- }
- int TupleS::getNoOfAttributes() const {
- if (m_currentTable == 0)
- return 0;
- return m_currentTable->getNoOfAttributes();
- }
- TableS * TupleS::getTable() const {
- return m_currentTable;
- }
- const AttributeDesc * TupleS::getDesc(int i) const {
- return m_currentTable->allAttributesDesc[i];
- }
- AttributeData * TupleS::getData(int i) const{
- return &(allAttrData[i]);
- }
- bool
- TupleS::prepareRecord(TableS & tab){
- if (allAttrData) {
- if (getNoOfAttributes() == tab.getNoOfAttributes())
- {
- m_currentTable = &tab;
- return true;
- }
- delete [] allAttrData;
- m_currentTable= 0;
- }
-
- allAttrData = new AttributeData[tab.getNoOfAttributes()];
- if (allAttrData == 0)
- return false;
-
- m_currentTable = &tab;
- return true;
- }
- const TupleS *
- RestoreDataIterator::getNextTuple(int & res)
- {
- Uint32 dataLength = 0;
- // Read record length
- if (buffer_read(&dataLength, sizeof(dataLength), 1) != 1){
- err << "getNextTuple:Error reading length of data part" << endl;
- res = -1;
- return NULL;
- } // if
-
- // Convert length from network byte order
- dataLength = ntohl(dataLength);
- const Uint32 dataLenBytes = 4 * dataLength;
-
- if (dataLength == 0) {
- // Zero length for last tuple
- // End of this data fragment
- debug << "End of fragment" << endl;
- res = 0;
- return NULL;
- } // if
- // Read tuple data
- void *_buf_ptr;
- if (buffer_get_ptr(&_buf_ptr, 1, dataLenBytes) != dataLenBytes) {
- err << "getNextTuple:Read error: " << endl;
- res = -1;
- return NULL;
- }
-
- Uint32 *buf_ptr = (Uint32*)_buf_ptr, *ptr = buf_ptr;
- ptr += m_currentTable->m_nullBitmaskSize;
- Uint32 i;
- for(i= 0; i < m_currentTable->m_fixedKeys.size(); i++){
- assert(ptr < buf_ptr + dataLength);
-
- const Uint32 attrId = m_currentTable->m_fixedKeys[i]->attrId;
- AttributeData * attr_data = m_tuple.getData(attrId);
- const AttributeDesc * attr_desc = m_tuple.getDesc(attrId);
- const Uint32 sz = attr_desc->getSizeInWords();
- attr_data->null = false;
- attr_data->void_value = ptr;
- if(!Twiddle(attr_desc, attr_data))
- {
- res = -1;
- return NULL;
- }
- ptr += sz;
- }
- for(i = 0; i < m_currentTable->m_fixedAttribs.size(); i++){
- assert(ptr < buf_ptr + dataLength);
- const Uint32 attrId = m_currentTable->m_fixedAttribs[i]->attrId;
- AttributeData * attr_data = m_tuple.getData(attrId);
- const AttributeDesc * attr_desc = m_tuple.getDesc(attrId);
- const Uint32 sz = attr_desc->getSizeInWords();
- attr_data->null = false;
- attr_data->void_value = ptr;
- if(!Twiddle(attr_desc, attr_data))
- {
- res = -1;
- return NULL;
- }
- ptr += sz;
- }
- for(i = 0; i < m_currentTable->m_variableAttribs.size(); i++){
- const Uint32 attrId = m_currentTable->m_variableAttribs[i]->attrId;
- AttributeData * attr_data = m_tuple.getData(attrId);
- const AttributeDesc * attr_desc = m_tuple.getDesc(attrId);
-
- if(attr_desc->m_column->getNullable()){
- const Uint32 ind = attr_desc->m_nullBitIndex;
- if(BitmaskImpl::get(m_currentTable->m_nullBitmaskSize,
- buf_ptr,ind)){
- attr_data->null = true;
- attr_data->void_value = NULL;
- continue;
- }
- }
- assert(ptr < buf_ptr + dataLength);
- typedef BackupFormat::DataFile::VariableData VarData;
- VarData * data = (VarData *)ptr;
- Uint32 sz = ntohl(data->Sz);
- Uint32 id = ntohl(data->Id);
- assert(id == attrId);
-
- attr_data->null = false;
- attr_data->void_value = &data->Data[0];
- /**
- * Compute array size
- */
- const Uint32 arraySize = (4 * sz) / (attr_desc->size / 8);
- assert(arraySize >= attr_desc->arraySize);
- if(!Twiddle(attr_desc, attr_data, attr_desc->arraySize))
- {
- res = -1;
- return NULL;
- }
- ptr += (sz + 2);
- }
- m_count ++;
- res = 0;
- return &m_tuple;
- } // RestoreDataIterator::getNextTuple
- BackupFile::BackupFile(void (* _free_data_callback)())
- : free_data_callback(_free_data_callback)
- {
- m_file = 0;
- m_path[0] = 0;
- m_fileName[0] = 0;
- m_buffer_sz = 64*1024;
- m_buffer = malloc(m_buffer_sz);
- m_buffer_ptr = m_buffer;
- m_buffer_data_left = 0;
- }
- BackupFile::~BackupFile(){
- if(m_file != 0)
- fclose(m_file);
- if(m_buffer != 0)
- free(m_buffer);
- }
- bool
- BackupFile::openFile(){
- if(m_file != NULL){
- fclose(m_file);
- m_file = 0;
- }
-
- m_file = fopen(m_fileName, "r");
- return m_file != 0;
- }
- Uint32 BackupFile::buffer_get_ptr_ahead(void **p_buf_ptr, Uint32 size, Uint32 nmemb)
- {
- Uint32 sz = size*nmemb;
- if (sz > m_buffer_data_left) {
- if (free_data_callback)
- (*free_data_callback)();
- memcpy(m_buffer, m_buffer_ptr, m_buffer_data_left);
- size_t r = fread(((char *)m_buffer) + m_buffer_data_left, 1, m_buffer_sz - m_buffer_data_left, m_file);
- m_buffer_data_left += r;
- m_buffer_ptr = m_buffer;
- if (sz > m_buffer_data_left)
- sz = size * (m_buffer_data_left / size);
- }
- *p_buf_ptr = m_buffer_ptr;
- return sz/size;
- }
- Uint32 BackupFile::buffer_get_ptr(void **p_buf_ptr, Uint32 size, Uint32 nmemb)
- {
- Uint32 r = buffer_get_ptr_ahead(p_buf_ptr, size, nmemb);
- m_buffer_ptr = ((char*)m_buffer_ptr)+(r*size);
- m_buffer_data_left -= (r*size);
- return r;
- }
- Uint32 BackupFile::buffer_read_ahead(void *ptr, Uint32 size, Uint32 nmemb)
- {
- void *buf_ptr;
- Uint32 r = buffer_get_ptr_ahead(&buf_ptr, size, nmemb);
- memcpy(ptr, buf_ptr, r*size);
- return r;
- }
- Uint32 BackupFile::buffer_read(void *ptr, Uint32 size, Uint32 nmemb)
- {
- void *buf_ptr;
- Uint32 r = buffer_get_ptr(&buf_ptr, size, nmemb);
- memcpy(ptr, buf_ptr, r*size);
- return r;
- }
- void
- BackupFile::setCtlFile(Uint32 nodeId, Uint32 backupId, const char * path){
- m_nodeId = nodeId;
- m_expectedFileHeader.BackupId = backupId;
- m_expectedFileHeader.FileType = BackupFormat::CTL_FILE;
- char name[PATH_MAX]; const Uint32 sz = sizeof(name);
- BaseString::snprintf(name, sz, "BACKUP-%d.%d.ctl", backupId, nodeId);
- setName(path, name);
- }
- void
- BackupFile::setDataFile(const BackupFile & bf, Uint32 no){
- m_nodeId = bf.m_nodeId;
- m_expectedFileHeader = bf.m_fileHeader;
- m_expectedFileHeader.FileType = BackupFormat::DATA_FILE;
-
- char name[PATH_MAX]; const Uint32 sz = sizeof(name);
- BaseString::snprintf(name, sz, "BACKUP-%d-%d.%d.Data",
- m_expectedFileHeader.BackupId, no, m_nodeId);
- setName(bf.m_path, name);
- }
- void
- BackupFile::setLogFile(const BackupFile & bf, Uint32 no){
- m_nodeId = bf.m_nodeId;
- m_expectedFileHeader = bf.m_fileHeader;
- m_expectedFileHeader.FileType = BackupFormat::LOG_FILE;
-
- char name[PATH_MAX]; const Uint32 sz = sizeof(name);
- BaseString::snprintf(name, sz, "BACKUP-%d.%d.log",
- m_expectedFileHeader.BackupId, m_nodeId);
- setName(bf.m_path, name);
- }
- void
- BackupFile::setName(const char * p, const char * n){
- const Uint32 sz = sizeof(m_path);
- if(p != 0 && strlen(p) > 0){
- if(p[strlen(p)-1] == '/'){
- BaseString::snprintf(m_path, sz, "%s", p);
- } else {
- BaseString::snprintf(m_path, sz, "%s%s", p, "/");
- }
- } else {
- m_path[0] = 0;
- }
- BaseString::snprintf(m_fileName, sizeof(m_fileName), "%s%s", m_path, n);
- debug << "Filename = " << m_fileName << endl;
- }
- bool
- BackupFile::readHeader(){
- if(!openFile()){
- return false;
- }
-
- if(buffer_read(&m_fileHeader, sizeof(m_fileHeader), 1) != 1){
- err << "readDataFileHeader: Error reading header" << endl;
- return false;
- }
-
- // Convert from network to host byte order for platform compatibility
- m_fileHeader.NdbVersion = ntohl(m_fileHeader.NdbVersion);
- m_fileHeader.SectionType = ntohl(m_fileHeader.SectionType);
- m_fileHeader.SectionLength = ntohl(m_fileHeader.SectionLength);
- m_fileHeader.FileType = ntohl(m_fileHeader.FileType);
- m_fileHeader.BackupId = ntohl(m_fileHeader.BackupId);
- m_fileHeader.BackupKey_0 = ntohl(m_fileHeader.BackupKey_0);
- m_fileHeader.BackupKey_1 = ntohl(m_fileHeader.BackupKey_1);
- debug << "FileHeader: " << m_fileHeader.Magic << " " <<
- m_fileHeader.NdbVersion << " " <<
- m_fileHeader.SectionType << " " <<
- m_fileHeader.SectionLength << " " <<
- m_fileHeader.FileType << " " <<
- m_fileHeader.BackupId << " " <<
- m_fileHeader.BackupKey_0 << " " <<
- m_fileHeader.BackupKey_1 << " " <<
- m_fileHeader.ByteOrder << endl;
-
- debug << "ByteOrder is " << m_fileHeader.ByteOrder << endl;
- debug << "magicByteOrder is " << magicByteOrder << endl;
-
- if (m_fileHeader.FileType != m_expectedFileHeader.FileType){
- abort();
- }
-
- // Check for BackupFormat::FileHeader::ByteOrder if swapping is needed
- if (m_fileHeader.ByteOrder == magicByteOrder) {
- m_hostByteOrder = true;
- } else if (m_fileHeader.ByteOrder == swappedMagicByteOrder){
- m_hostByteOrder = false;
- } else {
- abort();
- }
-
- return true;
- } // BackupFile::readHeader
- bool
- BackupFile::validateFooter(){
- return true;
- }
- bool RestoreDataIterator::readFragmentHeader(int & ret)
- {
- BackupFormat::DataFile::FragmentHeader Header;
-
- debug << "RestoreDataIterator::getNextFragment" << endl;
-
- if (buffer_read(&Header, sizeof(Header), 1) != 1){
- ret = 0;
- return false;
- } // if
-
- Header.SectionType = ntohl(Header.SectionType);
- Header.SectionLength = ntohl(Header.SectionLength);
- Header.TableId = ntohl(Header.TableId);
- Header.FragmentNo = ntohl(Header.FragmentNo);
- Header.ChecksumType = ntohl(Header.ChecksumType);
-
- debug << "FragmentHeader: " << Header.SectionType
- << " " << Header.SectionLength
- << " " << Header.TableId
- << " " << Header.FragmentNo
- << " " << Header.ChecksumType << endl;
-
- m_currentTable = m_metaData.getTable(Header.TableId);
- if(m_currentTable == 0){
- ret = -1;
- return false;
- }
-
- if(!m_tuple.prepareRecord(*m_currentTable))
- {
- ret =-1;
- return false;
- }
- info << "_____________________________________________________" << endl
- << "Restoring data in table: " << m_currentTable->getTableName()
- << "(" << Header.TableId << ") fragment "
- << Header.FragmentNo << endl;
-
- m_count = 0;
- ret = 0;
- return true;
- } // RestoreDataIterator::getNextFragment
- bool
- RestoreDataIterator::validateFragmentFooter() {
- BackupFormat::DataFile::FragmentFooter footer;
-
- if (buffer_read(&footer, sizeof(footer), 1) != 1){
- err << "getFragmentFooter:Error reading fragment footer" << endl;
- return false;
- }
-
- // TODO: Handle footer, nothing yet
- footer.SectionType = ntohl(footer.SectionType);
- footer.SectionLength = ntohl(footer.SectionLength);
- footer.TableId = ntohl(footer.TableId);
- footer.FragmentNo = ntohl(footer.FragmentNo);
- footer.NoOfRecords = ntohl(footer.NoOfRecords);
- footer.Checksum = ntohl(footer.Checksum);
- assert(m_count == footer.NoOfRecords);
-
- return true;
- } // RestoreDataIterator::getFragmentFooter
- AttributeDesc::AttributeDesc(NdbDictionary::Column *c)
- : m_column(c)
- {
- size = 8*NdbColumnImpl::getImpl(* c).m_attrSize;
- arraySize = NdbColumnImpl::getImpl(* c).m_arraySize;
- }
- void TableS::createAttr(NdbDictionary::Column *column)
- {
- AttributeDesc * d = new AttributeDesc(column);
- if(d == NULL) {
- ndbout_c("Restore: Failed to allocate memory");
- abort();
- }
- d->attrId = allAttributesDesc.size();
- allAttributesDesc.push_back(d);
- if (d->m_column->getAutoIncrement())
- m_auto_val_id= d->attrId;
- if(d->m_column->getPrimaryKey() && backupVersion <= MAKE_VERSION(4,1,7))
- {
- m_fixedKeys.push_back(d);
- return;
- }
-
- if(!d->m_column->getNullable())
- {
- m_fixedAttribs.push_back(d);
- return;
- }
- /* Nullable attr*/
- d->m_nullBitIndex = m_noOfNullable;
- m_noOfNullable++;
- m_nullBitmaskSize = (m_noOfNullable + 31) / 32;
- m_variableAttribs.push_back(d);
- } // TableS::createAttr
- Uint16 Twiddle16(Uint16 in)
- {
- Uint16 retVal = 0;
- retVal = ((in & 0xFF00) >> 8) |
- ((in & 0x00FF) << 8);
- return(retVal);
- } // Twiddle16
- Uint32 Twiddle32(Uint32 in)
- {
- Uint32 retVal = 0;
- retVal = ((in & 0x000000FF) << 24) |
- ((in & 0x0000FF00) << 8) |
- ((in & 0x00FF0000) >> 8) |
- ((in & 0xFF000000) >> 24);
-
- return(retVal);
- } // Twiddle32
- Uint64 Twiddle64(Uint64 in)
- {
- Uint64 retVal = 0;
- retVal =
- ((in & (Uint64)0x00000000000000FFLL) << 56) |
- ((in & (Uint64)0x000000000000FF00LL) << 40) |
- ((in & (Uint64)0x0000000000FF0000LL) << 24) |
- ((in & (Uint64)0x00000000FF000000LL) << 8) |
- ((in & (Uint64)0x000000FF00000000LL) >> 8) |
- ((in & (Uint64)0x0000FF0000000000LL) >> 24) |
- ((in & (Uint64)0x00FF000000000000LL) >> 40) |
- ((in & (Uint64)0xFF00000000000000LL) >> 56);
- return(retVal);
- } // Twiddle64
- RestoreLogIterator::RestoreLogIterator(const RestoreMetaData & md)
- : m_metaData(md)
- {
- debug << "RestoreLog constructor" << endl;
- setLogFile(md, 0);
- m_count = 0;
- m_last_gci = 0;
- }
- const LogEntry *
- RestoreLogIterator::getNextLogEntry(int & res) {
- // Read record length
- typedef BackupFormat::LogFile::LogEntry LogE;
- LogE * logE= 0;
- Uint32 len= ~0;
- const Uint32 stopGCP = m_metaData.getStopGCP();
- do {
- if (buffer_read_ahead(&len, sizeof(Uint32), 1) != 1){
- res= -1;
- return 0;
- }
- len= ntohl(len);
- Uint32 data_len = sizeof(Uint32) + len*4;
- if (buffer_get_ptr((void **)(&logE), 1, data_len) != data_len) {
- res= -2;
- return 0;
- }
-
- if(len == 0){
- res= 0;
- return 0;
- }
- logE->TableId= ntohl(logE->TableId);
- logE->TriggerEvent= ntohl(logE->TriggerEvent);
-
- const bool hasGcp= (logE->TriggerEvent & 0x10000) != 0;
- logE->TriggerEvent &= 0xFFFF;
-
- if(hasGcp){
- len--;
- m_last_gci = ntohl(logE->Data[len-2]);
- }
- } while(m_last_gci > stopGCP + 1);
-
- m_logEntry.m_table = m_metaData.getTable(logE->TableId);
- switch(logE->TriggerEvent){
- case TriggerEvent::TE_INSERT:
- m_logEntry.m_type = LogEntry::LE_INSERT;
- break;
- case TriggerEvent::TE_UPDATE:
- m_logEntry.m_type = LogEntry::LE_UPDATE;
- break;
- case TriggerEvent::TE_DELETE:
- m_logEntry.m_type = LogEntry::LE_DELETE;
- break;
- default:
- res = -1;
- return NULL;
- }
- const TableS * tab = m_logEntry.m_table;
- m_logEntry.clear();
- AttributeHeader * ah = (AttributeHeader *)&logE->Data[0];
- AttributeHeader *end = (AttributeHeader *)&logE->Data[len - 2];
- AttributeS * attr;
- while(ah < end){
- attr= m_logEntry.add_attr();
- if(attr == NULL) {
- ndbout_c("Restore: Failed to allocate memory");
- res = -1;
- return 0;
- }
- attr->Desc = (* tab)[ah->getAttributeId()];
- assert(attr->Desc != 0);
- const Uint32 sz = ah->getDataSize();
- if(sz == 0){
- attr->Data.null = true;
- attr->Data.void_value = NULL;
- } else {
- attr->Data.null = false;
- attr->Data.void_value = ah->getDataPtr();
- }
-
- Twiddle(attr->Desc, &(attr->Data));
-
- ah = ah->getNext();
- }
- m_count ++;
- res = 0;
- return &m_logEntry;
- }
- NdbOut &
- operator<<(NdbOut& ndbout, const AttributeS& attr){
- const AttributeData & data = attr.Data;
- const AttributeDesc & desc = *(attr.Desc);
- if (data.null)
- {
- ndbout << "<NULL>";
- return ndbout;
- }
-
- NdbRecAttr tmprec(0);
- tmprec.setup(desc.m_column, (char *)data.void_value);
- ndbout << tmprec;
- return ndbout;
- }
- // Print tuple data
- NdbOut&
- operator<<(NdbOut& ndbout, const TupleS& tuple)
- {
- ndbout << tuple.getTable()->getTableName() << "; ";
- for (int i = 0; i < tuple.getNoOfAttributes(); i++)
- {
- AttributeData * attr_data = tuple.getData(i);
- const AttributeDesc * attr_desc = tuple.getDesc(i);
- const AttributeS attr = {attr_desc, *attr_data};
- debug << i << " " << attr_desc->m_column->getName();
- ndbout << attr;
-
- if (i != (tuple.getNoOfAttributes() - 1))
- ndbout << delimiter << " ";
- } // for
- return ndbout;
- }
- // Print tuple data
- NdbOut&
- operator<<(NdbOut& ndbout, const LogEntry& logE)
- {
- switch(logE.m_type)
- {
- case LogEntry::LE_INSERT:
- ndbout << "INSERT " << logE.m_table->getTableName() << " ";
- break;
- case LogEntry::LE_DELETE:
- ndbout << "DELETE " << logE.m_table->getTableName() << " ";
- break;
- case LogEntry::LE_UPDATE:
- ndbout << "UPDATE " << logE.m_table->getTableName() << " ";
- break;
- default:
- ndbout << "Unknown log entry type (not insert, delete or update)" ;
- }
-
- for (Uint32 i= 0; i < logE.size();i++)
- {
- const AttributeS * attr = logE[i];
- ndbout << attr->Desc->m_column->getName() << "=";
- ndbout << (* attr);
- if (i < (logE.size() - 1))
- ndbout << ", ";
- }
- return ndbout;
- }
- NdbOut &
- operator<<(NdbOut& ndbout, const TableS & table){
- ndbout << endl << "Table: " << table.getTableName() << endl;
- for (int j = 0; j < table.getNoOfAttributes(); j++)
- {
- const AttributeDesc * desc = table[j];
- ndbout << desc->m_column->getName() << ": "
- << (Uint32) desc->m_column->getType();
- ndbout << " key: " << (Uint32) desc->m_column->getPrimaryKey();
- ndbout << " array: " << desc->arraySize;
- ndbout << " size: " << desc->size << endl;
- } // for
- return ndbout;
- }
- template class Vector<TableS*>;
- template class Vector<AttributeS*>;
- template class Vector<AttributeDesc*>;