bool Platform::addClient()
{
string logId;
while (true)
{
char tmpBuf[BUF_LEN];
cout << "input the logId you want:";
cin >> tmpBuf;
logId = tmpBuf;
if (logId.length() > 0 && this->judgeExistClientId(logId) == false)
break;
}
//TODO:输入两次密码的验证
string password;
char tmpBuf[BUF_LEN];
cout << "password:";
cin >> tmpBuf;
password = tmpBuf;
if (createRecord(logId, password))
return true;
else
return false;
}
/**
* 随机构造总大小为dataSize的记录插入到table中,
* 记录ID从在[minidx, minid]之间随机生成
* @param table 数据表
* @param dataSize 记录总大小
* @param maxid 最大id
* @param minid 最小id
* @return 记录数
*/
uint TNTCountTable::populate(Session *session, TNTTable *table, TNTOpInfo *opInfo, u64 *dataSize, u64 maxId, u64 minId) {
assert(session->getTrans() != NULL);
u64 volumnCnt = *dataSize;
uint recCnt = 0;
uint dupIdx;
int startId = 0;
Record *rec;
RowId rid;
while (true) {
// 创建记录
u64 id = (u64)RandomGen::nextInt((u32)minId, (u32)maxId);
rec = createRecord((u64)recCnt, (int)startId++);
if (volumnCnt < getRecordSize()) {
freeRecord(rec);
break;
}
// 插入记录
rid = table->insert(session, rec->m_data, &dupIdx, opInfo);
if (rid != INVALID_ROW_ID) {
recCnt++;
volumnCnt -= getRecordSize();
}
freeRecord(rec);
}
*dataSize -= volumnCnt;
return recCnt;
}
/**
* Deletes a record from table
*
* rel = table handle
* id = id of the record to be deleted
*
*/
RC deleteRecord(RM_TableData *rel, RID id) {
//Sanity Checks
if (rel == NULL) {
THROW(RC_INVALID_HANDLE, "Table handle is invalid");
}
Record *record;
//Read the record to be deleted
createRecord(&record, rel->schema);
RC rc = readRecord(rel, id, &record);
if (rc != RC_OK) {
THROW(RC_REC_MGR_DELETE_REC_FAILED, "Delete record failed");
}
//Set tomstone bit
record->nullMap |= 1 << 15;
//Write updated record
rc = writeRecord(rel, record);
freeRecord(record);
if (rc == RC_OK)
((RM_TableMgmtData *) rel->mgmtData)->tupleCount--;
else {
THROW(RC_REC_MGR_DELETE_REC_FAILED, "Delete record failed");
}
return rc;
}
XlRecord* XlChartRecordFactory::createRecord(ChSINT2 in_nId)
{
XlHeader header(in_nId, 0, XlRecord::BIFF_97UP);
XlRecord* pRecord = createRecord( header );
pRecord->setLength( pRecord->getPersistLength() );
return pRecord;
}
dimeRecord *
dimeRecord::createRecord(const int group_code,
const dimeParam ¶m,
dimeMemHandler * const memhandler)
{
dimeRecord *record = createRecord(group_code, memhandler);
if (record) record->setValue(param, memhandler);
return record;
}
bucket_id TNF_insert(TNF_Index* index, bucket_id id, char* data) {
// 1. write Record, get Record addr
size_t addr = Record_write(index->record, data, id);
// 2. create RecordMap
TNF_RecordAddrMap* map = createRecord(id, addr);
// 3. insert BinTree
Tree_add(index->tree, id, (void*)map);
return id + 1;
}
void LogDialog::addRecord(const Record &record)
{
auto scrollBar = ui->listLog->verticalScrollBar();
bool atBottom = scrollBar->value() == scrollBar->maximum();
auto item = createRecord(record);
if ( isFilteredOut(item, ui->lineEditSearch->text()) )
item->setHidden(true);
else if (atBottom && scrollBar->value() != 0)
ui->listLog->scrollToItem(item);
}
// setters
// change a given item by case insensitive name in the config, save the changes immediately
void ConfigManagerUnix::setConfigString(const char* configItemName, std::string outString)
{
if(NULL == configItemName)
return;
if(recordExists(configItemName))
{
std::string str = configItemName;
setValue(str,outString);
return;
}
createRecord(configItemName,outString.c_str());
}
void ConfigManagerUnix::setConfigLong(const char* configItemName, long outLongValue)
{
if(NULL == configItemName)
return;
char buffer[40];
std::sprintf(buffer,"%ld\n",outLongValue);
if(recordExists(configItemName))
{
std::string str = configItemName;
std::string value = buffer;
setValue(str,value);
return;
}
createRecord(configItemName,buffer);
}
void ConfigManagerUnix::setConfigFloat(const char* configItemName, float outLongValue)
{
if(NULL == configItemName)
return;
char buffer[40];
sprintf(buffer,"%f\n",outLongValue);//long d = std::_ftoa(outLongValue,buffer,10);
if(recordExists(configItemName))
{
std::string str = configItemName;
std::string value = buffer;
setValue(str,value);
return;
}
createRecord(configItemName,buffer);
}
void displayMenu()
{
int mode;
puts("Выберите команду:");
puts("1 - Создать файл");
puts("2 - Показать содержимое файла");
puts("3 - Добавить запись в файл");
puts("4 - Удалить запись из файла");
puts("5 - Изменить запись из файла");
puts("6 - Отсортировать по фамилии и отобразить");
puts("7 - Показать количество телефонов с определенного года");
scanf("%d", &mode);
switch (mode)
{
case 1:
createFile();
displayMenu();
break;
case 2:
displayFileContent();
displayMenu();
break;
case 3:
createRecord();
displayMenu();
break;
case 4:
deleteRecord();
displayMenu();
break;
case 5:
updateRecord();
displayMenu();
break;
case 6:
displayBySurname();
displayMenu();
break;
case 7:
displayCountSinceYear();
displayMenu();
break;
default:
puts("Выходим...");
}
}
LogDialog::LogDialog(const QList<Record> &records, const QString &format,
const QString &timeFormat, QWidget *parent)
: QDialog(parent)
, ui(new Ui::LogDialog)
, timeFormat_(timeFormat)
, format_(format)
{
ui->setupUi(this);
ui->listLog->setUniformItemSizes(true);
for (auto &record : records) {
createRecord(record);
}
ui->listLog->setCurrentRow(0);
}
void ConfigManagerUnix::setConfigBool(const char* configItemName, bool outBooleanValue)
{
if(NULL == configItemName)
return;
std::string value;
if(outBooleanValue)
value = '1';
else
value = '0';
if(recordExists(configItemName))
{
std::string str = configItemName;
setValue(str,value);
return;
}
createRecord(configItemName,value.c_str());
}
int FrmCatch::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = PreviewTab::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: createRecord(); break;
case 1: previewRow((*reinterpret_cast< QModelIndex(*)>(_a[1]))); break;
case 2: { bool _r = onButtonClick((*reinterpret_cast< QAbstractButton*(*)>(_a[1])));
if (_a[0]) *reinterpret_cast< bool*>(_a[0]) = _r; } break;
case 3: onItemSelection(); break;
default: ;
}
_id -= 4;
}
return _id;
}
int FrmCatch::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = PreviewTab::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: createRecord(); break;
case 1: previewRow((*reinterpret_cast< QModelIndex(*)>(_a[1]))); break;
case 2: onItemSelection(); break;
case 3: onEditLeave((*reinterpret_cast< const bool(*)>(_a[1])),(*reinterpret_cast< const bool(*)>(_a[2]))); break;
case 4: editFinished(); break;
default: ;
}
_id -= 5;
}
return _id;
}
IHqlExpression * buildDiskFileViewerEcl(const char * logicalName, IHqlExpression * record)
{
//Add filepos to the incomming record structure...
IHqlExpression * filePosAttr = createAttribute(virtualAtom, createAttribute(filepositionAtom));
OwnedHqlExpr filepos = createField(fileposName, makeIntType(8, false), NULL, filePosAttr);
IHqlExpression * sizeofAttr = createAttribute(virtualAtom, createAttribute(sizeofAtom));
OwnedHqlExpr reclen = createField(recordlenName, makeIntType(2, false), NULL, sizeofAttr);
HqlExprArray fields;
unwindChildren(fields, record);
fields.append(*filepos.getLink());
fields.append(*reclen.getLink());
OwnedHqlExpr newRecord = createRecord(fields);
newRecord.setown(createSymbol(createIdentifierAtom("_SourceRecord_"), newRecord.getLink(), ob_private));
OwnedHqlExpr dataset = createNewDataset(createConstant(logicalName), newRecord.getLink(), createValue(no_thor), NULL, NULL, NULL);
OwnedHqlExpr filtered = addFilter(dataset, filepos);
OwnedHqlExpr projected = addSimplifyProject(filtered);
OwnedHqlExpr output = addOutput(projected);
return output.getClear();
}
Record *
testRecord(Schema *schema, int a, char *b, int c)
{
Record *result;
Value *value;
TEST_CHECK(createRecord(&result, schema));
MAKE_VALUE(value, DT_INT, a);
TEST_CHECK(setAttr(result, schema, 0, value));
freeVal(value);
MAKE_STRING_VALUE(value, b);
TEST_CHECK(setAttr(result, schema, 1, value));
freeVal(value);
MAKE_VALUE(value, DT_INT, c);
TEST_CHECK(setAttr(result, schema, 2, value));
freeVal(value);
return result;
}
Record *
testRecord(Schema *schema, int a, char *b, int c)
{
//printf("\n in here test");
Record *result;
Value *value;
TEST_CHECK(createRecord(&result, schema));
printf("\n created record");
MAKE_VALUE(value, DT_INT, a);
TEST_CHECK(setAttr(result, schema, 0, value));
freeVal(value);
MAKE_STRING_VALUE(value, b);
TEST_CHECK(setAttr(result, schema, 1, value));
freeVal(value);
MAKE_VALUE(value, DT_INT, c);
TEST_CHECK(setAttr(result, schema, 2, value));
// printf("\n outta here %s",result->data);
freeVal(value);
return result;
}
void menu(){
char selection[1];
printf("\n1) Create a new record \n2) Display All Records \n3) Update a Record \n4) Exit Program \nPlease enter a valid number to make your choice:\n");
lineFlush();
scanf("%d",selection);
lineFlush();
switch(selection[0]){
case 1:
createRecord();
break;
case 2:
displayRecords();
break;
case 3:
updateRecord();
break;
case 4:
exit(0);
break;
default:
printf("\nIncorrect option.\n");
break;
}
}
IHqlExpression * PositionTransformer::createTransformed(IHqlExpression * _expr)
{
OwnedHqlExpr transformed = NewHqlTransformer::createTransformed(_expr);
switch (transformed->getOperator())
{
case no_table:
{
IHqlExpression * mode = transformed->queryChild(2);
HqlExprArray fields;
HqlExprArray args;
if (mode->getOperator() == no_thor)
{
unwindChildren(fields, transformed->queryChild(1));
IHqlExpression * filePosAttr = createComma(createAttribute(virtualAtom, createAttribute(filepositionAtom)), insertedAttr.getLink());
IHqlExpression * sizeofAttr = createComma(createAttribute(virtualAtom, createAttribute(sizeofAtom)), insertedAttr.getLink());
fields.append(*createField(fileposName, makeIntType(8, false), NULL, filePosAttr));
fields.append(*createField(recordlenName, makeIntType(2, false), NULL, sizeofAttr));
unwindChildren(args, transformed);
args.replace(*createRecord(fields), 1);
return transformed->clone(args);
}
}
break;
case no_iterate:
case no_hqlproject:
{
HqlExprArray args;
HqlExprArray assigns;
IHqlExpression * transform = transformed->queryChild(1);
unwindChildren(args, transformed);
unwindChildren(assigns, transform);
IHqlExpression * inRecord = transformed->queryChild(0)->queryRecord();
IHqlExpression * outRecord = transform->queryRecord();
HqlExprArray fields;
unwindChildren(fields, outRecord);
ForEachChild(idx, inRecord)
{
IHqlExpression * child = inRecord->queryChild(idx);
if (child->hasProperty(insertedAtom))
{
IHqlExpression * newTarget = createField(child->queryName(), child->getType(), LINK(child), insertedAttr.getLink());
fields.append(*newTarget);
assigns.append(*createValue(no_assign, makeVoidType(), newTarget, createSelectExpr(createValue(no_left), LINK(newTarget))));
}
}
IHqlExpression * newRecord = createRecord(fields);
args.replace(*createValue(no_transform, newRecord->getType(), assigns), 1);
return transformed->clone(args);
}
break;
case no_join:
//only ok if join first
case no_rollup:
case no_newaggregate:
case no_aggregate:
fail();
break;
case no_usertable:
case no_selectfields:
{
IHqlExpression * grouping = transformed->queryChild(2);
if (grouping && (grouping->getOperator() != no_attr))
fail();
IHqlExpression * record = transformed->queryRecord();
HqlExprArray fields;
unwindChildren(fields, transformed->queryChild(1));
ForEachChild(idx, record)
{
IHqlExpression * child = record->queryChild(idx);
if (child->hasProperty(insertedAtom))
fields.append(*createField(child->queryName(), child->getType(), LINK(child), insertedAttr.getLink()));
}
HqlExprArray args;
unwindChildren(args, transformed);
args.replace(*createRecord(fields), 1);
return transformed->clone(args);
}
XlRecord* XlParser::nextRecord()
{
// sanity check
if (!hasMoreElements())
{
ChTHROW(OC_READ_FAILED);
}
XlHeader header;
bool isContinue = true;
// Main loop
while(isContinue && m_pStream->getBytesAvailableToRead() >= XlRecord::HDR_SIZE)
{
//----------------------------------
// process BIFF header
//----------------------------------
// synchronize location.
m_pStream->seek(m_ulCurrentOffset, SsrwOO_START);
// fetch next header
m_pParserVisitor->peekAhead(header, m_bFileVersion);
// Check ending condition
if (header.getId() == 0 || header.getLength() > m_pStream->getBytesAvailableToRead())
{
m_isEndOfRecs = true;
return NULL;
}
//-------------------------------------
// Optimization: Seek and filter modes
//-------------------------------------
// 'seek' mode:
// If the upper module requested advancement till specific
// record (by calling advanceToElement(recType)) we skip all the
// recs till we find requested one.
if (m_nSeekRecord != -1 && header.getId() != m_nSeekRecord)
{
// shortcut - skip this record
if ( !m_pParserVisitor->isEncapsRecord() )
{
m_ulCurrentOffset += header.getLength() + XlRecord::HDR_SIZE;
}
else
{
m_pParserVisitor->seekNextRecord();
m_ulCurrentOffset = m_pStream->getPos();
}
continue;
}
// 'filter' mode:
else if (m_bFilter == SKIP_CONTINUES && header.getId() == XlContinue::ID)
{
// shortcut - skip this record
if ( !m_pParserVisitor->isEncapsRecord() )
{
m_ulCurrentOffset += header.getLength() + XlRecord::HDR_SIZE;
}
else
{
m_pParserVisitor->seekNextRecord();
m_ulCurrentOffset = m_pStream->getPos();
}
continue;
}
//------------------------------------
// process rest of the next BIFF record
//------------------------------------
// move past the header
if ( m_pParserVisitor->isEncapsRecord() )
{
m_pParserVisitor->skipHeader();
}
else
{
m_pStream->seek(XlRecord::HDR_SIZE, SsrwOO_CUR);
}
// create and initialize the record
if (m_isUseGeneric)
{
ChSINT2 m_nOriginalId = header.getId();
// convert this record to a generic record
header.setId(XlGenericRecord::ID);
m_pRecord = ChNEW XlGenericRecord(header);
ChDOWNCAST<XlRecord, XlGenericRecord>(m_pRecord)->setOriginalId(m_nOriginalId);
}
else
{
m_pRecord = createRecord(header, m_nStreamType);
}
// visit record content
m_pRecord->accept(*m_pParserVisitor);
// update current file offset
if ( !m_pParserVisitor->isEncapsRecord() )
{
m_ulCurrentOffset += m_pRecord->getLength() + XlRecord::HDR_SIZE;
}
else
{
m_pParserVisitor->seekNextRecord();
m_ulCurrentOffset = m_pStream->getPos();
}
// OPTIMIZATION:
// Not relevant (to the target conversion process) records
// will be short circuited by the record factory as GenericRecord
// objects. There is no point of processing such a record any further.
// Skip over it and go for the next one.
if (m_pRecord->getId() == XlGenericRecord::ID && m_doesIgnoreGeneric)
{
// reset fetch engine and go after next record
ChDELETE(m_pRecord);
isContinue = true;
}
else // done - get out of the loop
{
m_nSeekRecord = -1;
isContinue = false;
}
} // end of loop
XlRecord* pReturnRecord = m_pRecord;
m_pRecord = NULL;
return pReturnRecord;
}
void testScansTwo (void)
{
RM_TableData *table = (RM_TableData *) malloc(sizeof(RM_TableData));
TestRecord inserts[] = {
{1, "aaaa", 3},
{2, "bbbb", 2},
{3, "cccc", 1},
{4, "dddd", 3},
{5, "eeee", 5},
{6, "ffff", 1},
{7, "gggg", 3},
{8, "hhhh", 3},
{9, "iiii", 2},
{10, "jjjj", 5},
};
bool foundScan[] = {
FALSE,
FALSE,
FALSE,
FALSE,
FALSE,
FALSE,
FALSE,
FALSE,
FALSE,
FALSE
};
int numInserts = 10, i;
Record *r;
RID *rids;
Schema *schema;
RM_ScanHandle *sc = (RM_ScanHandle *) malloc(sizeof(RM_ScanHandle));
Expr *sel, *left, *right, *first, *se;
int rc;
testName = "test creating a new table and inserting tuples";
schema = testSchema();
rids = (RID *) malloc(sizeof(RID) * numInserts);
TEST_CHECK(initRecordManager(NULL));
TEST_CHECK(createTable("test_table_r",schema));
TEST_CHECK(openTable(table, "test_table_r"));
// insert rows into table
for(i = 0; i < numInserts; i++)
{
r = fromTestRecord(schema, inserts[i]);
TEST_CHECK(insertRecord(table,r));
rids[i] = r->id;
}
TEST_CHECK(closeTable(table));
TEST_CHECK(openTable(table, "test_table_r"));
// Select 1 record with INT in condition a=2.
MAKE_CONS(left, stringToValue("i2"));
MAKE_ATTRREF(right, 0);
MAKE_BINOP_EXPR(sel, left, right, OP_COMP_EQUAL);
createRecord(&r, schema);
TEST_CHECK(startScan(table, sc, sel));
while((rc = next(sc, r)) == RC_OK)
{
ASSERT_EQUALS_RECORDS(fromTestRecord(schema, inserts[1]), r, schema, "compare records");
}
if (rc != RC_NO_TUPLES)
TEST_CHECK(rc);
TEST_CHECK(closeScan(sc));
// Select 1 record with STRING in condition b='ffff'.
MAKE_CONS(left, stringToValue("sffff"));
MAKE_ATTRREF(right, 1);
MAKE_BINOP_EXPR(sel, left, right, OP_COMP_EQUAL);
createRecord(&r, schema);
TEST_CHECK(startScan(table, sc, sel));
while((rc = next(sc, r)) == RC_OK)
{
ASSERT_EQUALS_RECORDS(fromTestRecord(schema, inserts[5]), r, schema, "compare records");
serializeRecord(r, schema);
}
if (rc != RC_NO_TUPLES)
TEST_CHECK(rc);
TEST_CHECK(closeScan(sc));
// Select all records, with condition being false
MAKE_CONS(left, stringToValue("i4"));
MAKE_ATTRREF(right, 2);
MAKE_BINOP_EXPR(first, right, left, OP_COMP_SMALLER);
MAKE_UNOP_EXPR(se, first, OP_BOOL_NOT);
TEST_CHECK(startScan(table, sc, se));
while((rc = next(sc, r)) == RC_OK)
{
serializeRecord(r, schema);
for(i = 0; i < numInserts; i++)
{
if (memcmp(fromTestRecord(schema, inserts[i])->data,r->data,getRecordSize(schema)) == 0)
foundScan[i] = TRUE;
}
}
if (rc != RC_NO_TUPLES)
TEST_CHECK(rc);
TEST_CHECK(closeScan(sc));
ASSERT_TRUE(!foundScan[0], "not greater than four");
ASSERT_TRUE(foundScan[4], "greater than four");
ASSERT_TRUE(foundScan[9], "greater than four");
// clean up
TEST_CHECK(closeTable(table));
TEST_CHECK(deleteTable("test_table_r"));
TEST_CHECK(shutdownRecordManager());
freeRecord(r);
free(table);
free(sc);
freeExpr(sel);
TEST_DONE();
}
void
testMultipleScans(void)
{
RM_TableData *table = (RM_TableData *) malloc(sizeof(RM_TableData));
TestRecord inserts[] = {
{1, "aaaa", 3},
{2, "bbbb", 2},
{3, "cccc", 1},
{4, "dddd", 3},
{5, "eeee", 5},
{6, "ffff", 1},
{7, "gggg", 3},
{8, "hhhh", 3},
{9, "iiii", 2},
{10, "jjjj", 5},
};
int numInserts = 10, i, scanOne=0, scanTwo=0;
Record *r;
RID *rids;
Schema *schema;
testName = "test running muliple scans ";
schema = testSchema();
rids = (RID *) malloc(sizeof(RID) * numInserts);
RM_ScanHandle *sc1 = (RM_ScanHandle *) malloc(sizeof(RM_ScanHandle));
RM_ScanHandle *sc2 = (RM_ScanHandle *) malloc(sizeof(RM_ScanHandle));
Expr *se1, *left, *right;
int rc,rc2;
TEST_CHECK(initRecordManager(NULL));
TEST_CHECK(createTable("test_table_r",schema));
TEST_CHECK(openTable(table, "test_table_r"));
// insert rows into table
for(i = 0; i < numInserts; i++)
{
r = fromTestRecord(schema, inserts[i]);
TEST_CHECK(insertRecord(table,r));
rids[i] = r->id;
}
// Mix 2 scans with c=3 as condition
MAKE_CONS(left, stringToValue("i3"));
MAKE_ATTRREF(right, 2);
MAKE_BINOP_EXPR(se1, left, right, OP_COMP_EQUAL);
createRecord(&r, schema);
TEST_CHECK(startScan(table, sc1, se1));
TEST_CHECK(startScan(table, sc2, se1));
if ((rc2 = next(sc2, r)) == RC_OK)
scanTwo++;
i = 0;
while((rc = next(sc1, r)) == RC_OK)
{
scanOne++;
i++;
if (i % 3 == 0)
if ((rc2 = next(sc2, r)) == RC_OK)
scanTwo++;
}
while((rc2 = next(sc2, r)) == RC_OK)
scanTwo++;
ASSERT_TRUE(scanOne == scanTwo, "scans returned same number of tuples");
if (rc != RC_NO_TUPLES)
TEST_CHECK(rc);
TEST_CHECK(closeScan(sc1));
TEST_CHECK(closeScan(sc2));
TEST_CHECK(closeTable(table));
TEST_CHECK(deleteTable("test_table_r"));
TEST_CHECK(shutdownRecordManager());
free(rids);
free(table);
TEST_DONE();
}
int main(int argc, char * argv[])
{
FILE * file;
char * name;
char * group;
char line[900][256];
char ch;
char type;
char temp;
double calories;
double calTotal = 0;
double vegTotal = 0, meatTotal = 0, dairyTotal = 0, grainsTotal = 0, fatTotal = 0;
double vegTot = 0, meatTot = 0, dairyTot = 0, grainsTot = 0, fatTot = 0;
int i;
Food * head = (Food *)malloc(sizeof(Food));
Food * ptr = (Food *)malloc(sizeof(Food));
head = NULL;
ptr = NULL;
if (argc < 2)
{
printf("No argument inputted. Exiting...\n");
exit(0);
}
file = fopen(argv[1], "r");
if (file == NULL)
{
printf("Error opening file. Exiting...\n");
exit(0);
}
while((ch = fgetc(file)) != EOF)
{
line[i][0] = ch;
while((ch = fgetc(file)) != '\n')
{
line[i][strlen(line[i])] = ch;
if (line[i][strlen(line[i])-1] == ',' && isdigit(line[i][strlen(line[i])-2]))
{
temp = fgetc(file);
}
}
name = strtok(line[i], ",");
group = strtok(NULL, ",");
calories = atoi(strtok(NULL, ","));
calTotal += calories;
type = temp;
ptr = createRecord(name, group, calories, type);
if (head == NULL)
{
head = ptr;
}
else if (type == 'j')
{
head = addToBack(head, ptr);
}
else if (type == 'h')
{
head = addToFront(head, ptr);
}
if (strcmp(group, "vegfruit") == 0)
{
vegTotal += calories;
vegTot += 1;
}
else if (strcmp(group, "grains") == 0)
{
grainsTotal += calories;
grainsTot += 1;
}
else if (strcmp(group, "dairy") == 0)
{
dairyTotal += calories;
dairyTot += 1;
}
else if (strcmp(group, "meat") == 0)
{
meatTotal += calories;
meatTot += 1;
}
else if (strcmp(group, "fat") == 0)
{
fatTotal += calories;
fatTot += 1;
}
i++;
}
printf("%d\n", (int)calTotal);
printf("%.0f\n", vegTotal / vegTot);
printf("%.0f\n", meatTotal / meatTot);
printf("%.0f\n", dairyTotal / dairyTot);
printf("%.0f\n", grainsTotal / grainsTot);
printf("%.0f\n", fatTotal / fatTot);
printList(head);
destroyList(head);
return 0;
}
/**
* This API allows conditional updates of the records
*
* rel = Table handle
* cond = Conditional expression to be matched
* op = Function pointer pointing to update function to be called in case a matching record is found
*/
RC updateScan(RM_TableData *rel, Expr *cond, void (*op)(Schema*, Record *)) {
//Sanity Checks
if (rel == NULL) {
THROW(RC_INVALID_HANDLE, "Table handle is invalid");
}
// Get total number of pages this table has
int pages = ((RM_TableMgmtData *) rel->mgmtData)->pageCount;
RID firstFreeSlot = ((RM_TableMgmtData *) rel->mgmtData)->firstFreeSlot;
int i, j, tuplesRead, slot;
RID id;
Value *result;
Record* r;
BM_PageHandle *pageData = (BM_PageHandle *) malloc(sizeof(BM_PageHandle));
if (pageData == NULL) {
THROW(RC_NOT_ENOUGH_MEMORY,
"Not enough memory available for resource allocation");
}
j = 0;
tuplesRead = 0;
// loop through pages and get the desired records
for (i = 1; i < pages; i++) {
slot = 0;
id.page = i;
while (slot < ((RM_TableMgmtData *) rel->mgmtData)->slotCapacityPage) {
createRecord(&r, rel->schema);
id.slot = slot;
RC rc = readRecord(rel, id, &r);
if (rc != RC_OK) {
THROW(RC_REC_MGR_DELETE_REC_FAILED, "Delete record failed");
}
// ignore the deleted records (tombstones) and free slots
if ((!(r->nullMap & (1 << 15))
|| ((firstFreeSlot.page == i)
&& (firstFreeSlot.slot == slot)))) {
// check if record satisfies the given condition
evalExpr(r, rel->schema, cond, &result);
if (result->v.boolV) {
op(rel->schema, r);
updateRecord(rel, r);
j++;
tuplesRead++;
}
freeVal(result);
}
freeRecord(r);
slot++;
}
}
free(pageData);
//All OK
return RC_OK;
}
/**
* handle_client: Main application layer thread for each client
* @author ndemarinis (Basic implementation)
*/
void *handle_client(void *data){
struct client_handler_data *clnt = (struct client_handler_data *)data;
int pipes[2]; // Make a pipe to connect to the layer stack
uint16_t cur_seq_num = 0;
pid_t clnt_pid; // PID we receive from the client before startup
struct layer_stack *stack; // Work data for layer stack implementation
// Grab the client's identifier
if((recv(clnt->sock, &clnt_pid, sizeof(pid_t), 0) != sizeof(pid_t)))
die_with_error("Error receiving PID from client!");
stack = create_layer_stack(clnt->sock, clnt_pid, pipes); // Initialize all of our layer threads
sleep(1); // Wait a second for the thread creation to settle
int bytes_read;
struct packet client_p;
struct packet response_p;
while(1){
//Wait for a packet to come in
bytes_read = read(pipe_read(pipes), &client_p, sizeof(struct packet));
if(!bytes_read) // If we read nothing, it's time to terminate.
{
dprintf(DID_INFO, "APP: Read 0 bytes from layer stack. Terminating!\n");
break;
}
int opcode = client_p.opcode;
//login
if (opcode == __LOGIN_CODE){
//payload is just the username for this opcode
if(login(client_p.payload) == 0){
//response code for SUCCESS
response_p.opcode = 0x05;
response_p.seq_num = cur_seq_num;
cur_seq_num++;
//no payload basic success response!
response_p.length = 0;
send_packet(pipes, response_p);
} else {
//basic response packet signaling invailed login
response_p.opcode = __NOT_AUTHORIZED_CODE;
response_p.seq_num = cur_seq_num;
cur_seq_num++;
response_p.length = 0;
send_packet(pipes, response_p);
}
//create record
} else if (opcode == __CREATE_CODE){
//payload syntax "<firstName>,<lastName>,<location>"
char *firstName = strtok(client_p.payload, ",");
char *lastName = strtok(NULL, ",");
char *location = strtok(NULL, "");
//replace null with proper response once I determine what its for!
char *response = malloc(10*sizeof(response));
int resp = createRecord(firstName, lastName, location, response);
//if a 0 was not returned an error occured
if (resp) {
//send an error back!
return_error(pipes, resp, &cur_seq_num);
} else {
//send back the data
return_response(pipes, response, &cur_seq_num);
}
//query record
} else if (opcode == __QUERY_CODE){
//payload syntax "NAME:<firstName>,<lastName>"
// "LOCATION:<location>"
char *queryType = strtok(client_p.payload, ":");
bodyEntry *responses;
int resp;
//two types of query name and location
if (strcmp(queryType, "NAME") == 0){
//handle queries by name
char *firstName = strtok(NULL, ",");
char *lastName = strtok(NULL, "");
int respCount;
//get the query response from the database
resp = queryRecordByName(firstName, lastName, &responses, &respCount);
//if resp is not 0 then an error occured
if (resp){
//send an error back!
return_error(pipes, resp, &cur_seq_num);
} else {
//send the information back to the client!
char response[respCount*(16+20+36+3)];
memset(response,0,sizeof(response));
int i, rID;
char recordID[10];
for (i = 0; i < respCount; i++){
rID = responses[i].id;
sprintf(recordID, "%09d", rID);
strcat(response, recordID);
strcat(response, ",");
strcat(response, responses[i].location);
strcat(response, ",");
}
return_response(pipes, response, &cur_seq_num);
}
} else if (strcmp(queryType, "LOCATION") == 0){
//handle queries by location
char *location = strtok(NULL, "");
int respCount;
//get the query response from the database
resp = queryRecordByLocation(location, &responses, &respCount);
//if resp is not 0 then an error occured
if (resp){
//send an error back!
return_error(pipes, resp, &cur_seq_num);
} else {
//send the information back to the client!
char response[respCount*(16+20+36+3)];
memset(response,0,sizeof(response));
int i, rID;
char recordID[10];
for (i = 0; i < respCount; i++){
rID = responses[i].id;
sprintf(recordID, "%09d", rID);
strcat(response, recordID);
strcat(response, ",");
strcat(response, responses[i].firstName);
strcat(response, ",");
strcat(response, responses[i].lastName);
strcat(response, ",");
}
return_response(pipes, response, &cur_seq_num);
}
}
//update record
} else if (opcode == __UPDATE_CODE){
//payload syntax "<recordId>,<firstName>,<lastName>"
char *recordId = strtok(client_p.payload, ",");
char *firstName = strtok(NULL, ",");
char *lastName = strtok(NULL, "");
//convert recordID into an integer
int rId = atoi(recordId);
int resp = updateRecordName(rId, firstName, lastName);
//if resp is not 0 then an error occured
if (resp){
//send an error back!
return_error(pipes, resp, &cur_seq_num);
} else {
//send the information back to the client!
//basic success packet so an empty string is given for the payload
return_response(pipes, "", &cur_seq_num);
}
//add picture
} else if (opcode == __ADD_PIC_CODE){
/*payload syntax 1st packet: "<firstName>,<lastName>,<imageSize>"
2nd+ packets: "<pictureData>"
These picture data packets will continue until the entirety of the picture has been transmitted
The file is complete once the server has recieved a packet ending with an EOF character
*/
//get the name information from the first packet transmitted
char *firstName = strtok(client_p.payload, ",");
char *lastName = strtok(NULL, ",");
char *imageSize = strtok(NULL, "");
unsigned long size = atol(imageSize);
//create an array capable of holding the entire image
char pictureData[size];
int i = 0;
// DEBUG: Write out the file as we read it
FILE *out = fopen("server_output.png", "w+");
//start recieving the picture data, continue until this entire picture has been recieved
while(i < size - 1){
//read in a new packet of data
bytes_read = read(pipe_read(pipes), &client_p, sizeof(struct packet));
dprintf(DID_APP_INFO, "APP: Received packet of %d bytes with payload of %d bytes.\n",
bytes_read, client_p.length);
//store the picture data into the array
memcpy(pictureData + i, client_p.payload, client_p.length);
//increment i by the length of the payload
i += client_p.length;
}
// DEBUG: Write out that whole array to the test file
printf("Received picture of %d total bytes.\n", i);
write(fileno(out), pictureData, i);
// DEBUG: Close that file
fflush(out);
fclose(out);
char add_response[10];
int resp = addPicture(firstName, lastName, pictureData, add_response);
if (resp){
//send an error back!
return_error(pipes, resp, &cur_seq_num);
} else {
//send the information back to the client!
return_response(pipes, add_response, &cur_seq_num);
}
//connect picture
} else if (opcode == __CONNECT_PIC_CODE){
//payload syntax "<pictureID>,<recordID>"
char *pictureID = strtok(client_p.payload, ",");
char *recordID = strtok(NULL, "");
int pID = atoi(pictureID);
int rID = atoi(recordID);
int resp = connectPictureToRecord(pID, rID);
if (resp){
//send and error back!
return_error(pipes, resp, &cur_seq_num);
} else {
//send the success packet back!
return_response(pipes, "", &cur_seq_num);
}
//logout!
} else if (opcode == __LOGOUT_CODE){
//payload syntax NONE
//break out of the while loop containin this and allow the thread processing this client to exit
logout();
break;
//download picture
} else if (opcode == __QUERY_PIC_CODE){
//payload syntax "<pictureID>"
char *pictureID = strtok(client_p.payload, "");
int pID = atoi(pictureID);
char pictureData[__MAX_IMAGE_SIZE];
int resp = queryPicture(pID, pictureData);
if (resp){
//send an error back!
return_error(pipes, resp, &cur_seq_num);
} else {
//break the image into packets and send it back to the client!
//write the data into a tempory file handle for simple reading when breaking into packets
//base the temporary file off of the pid to ensure uniqueness
char filename[MAX_FILENAME_SIZE];
int pid = getpid();
char cpid[10];
sprintf(cpid, "%d", pid);
strcpy(filename, "temp_");
strcat(filename, cpid);
strcat(filename, ".jpg");
//open the temp file for writing
FILE *picture = fopen(filename, "w");
//write the entire image to the file!
fwrite(pictureData, 1, sizeof(pictureData), picture);
//send a simple packet informing the client of the size of the image that it is going to recieve
response_p.opcode = 5;
response_p.seq_num = cur_seq_num;
cur_seq_num++;
sprintf(response_p.payload, "%lu", sizeof(pictureData));
response_p.length = strlen(response_p.payload);
send_packet(pipes, response_p);
//read into packets and send them until the end of file is reached
//note this uses the same packet pointer the entire time so the opcode does not need to be set again
response_p.opcode = 5;
while(!feof(picture)){
//read at most 251 bytes of the picture into the packets payload
int readSize = fread(response_p.payload, 1, MAX_PAYLOAD, picture);
//if there was no error then add the sequence number and the length to the packet then send it
//DO NOT SET THE SEND FLAG, this will handle it on its own since there could be multiple sends
if (!ferror(picture)){
response_p.seq_num = cur_seq_num;
cur_seq_num++;
response_p.length = (uint8_t)readSize;
//send this packet down to the data link layer
send_packet(pipes, response_p);
} else {
//an error occured return an error code so that the client can stop processing the image and drop the corrupt data
return_error(pipes, 1, &cur_seq_num);
break;
}
}
//close the picture that was being read
fclose(picture);
//delete the temporary file
remove(filename);
}
}
// Send it straight back
//printf("APP: Sending string of %d bytes: %s\n", to_read, read_buffer);
//write(pipe_write(pipes), read_buffer, to_read);
}
curr_clients--;
pthread_exit(NULL);
}
MusicRec * ParseLine(char * line)
{
char * chunkOfLine;
char * artist;
char * title;
char * size;
char * length;
char * lineCopy;
int lengthInt;
double sizeDecimal;
int count;
char * type;
MusicRec * current;
/* if its too short, exit */
if(strlen(line) < 8)
{
return NULL;
}
/* create a copy to close */
lineCopy = malloc(sizeof(char)*strlen(line)+1);
strcpy(lineCopy, line);
count = 0;
/* split the line by commas */
chunkOfLine = strtok(lineCopy, ",");
/* make sure there are 4 commas */
while(chunkOfLine != NULL)
{
chunkOfLine = strtok(NULL, ",");
count++;
}
free(lineCopy);
if(count != 5)
{
return NULL;
}
/* set all the values in strings */
artist = strtok(line, ",");
title = strtok(NULL, ",");
length = strtok(NULL, ",");
size = strtok(NULL, ",");
type = strtok(NULL,",");
/* if anything is not there, exit the function */
if(artist == NULL || strlen(artist) == 0
|| title == NULL || strlen(title) == 0
|| length == NULL || strlen(length) == 0
|| size == NULL || strlen(size) == 0
|| type == NULL || strlen(type) != 1)
{
return NULL;
}
/* convert the numbers to floats and integers */
sizeDecimal = atof(size);
lengthInt = atoi(length);
/* create the record and return it */
current = createRecord(title, artist, sizeDecimal, lengthInt, type[0]);
return current;
}
/************************* Nested Join ************************************/
extern RC nested_join(JoinInfo *j1,Schema *s1,JoinInfo *j2,Schema *s2,Schema *s3,RID *res)
{
int a1=j1->attrNum;
int a2=j2->attrNum;
int i,j,x,z=0;
RID rel1,rel2,rel3;
Value *v1,*v2;
Record *r1= (Record*) malloc(sizeof(Record)); // To store first relation
Record *r2= (Record*) malloc(sizeof(Record)); // to store second relation
Record *r3; // To store the result
/*openTable(table, t1);
mgmtinfo=table->mgmtData;*/
//Set pointers on both relations to scan
int tc1= mgmtinfo->Tuplescount;
rel1.page=mgmtinfo->FirstPage;
rel1.slot=0;
int tc2= mgmtinfo2->Tuplescount;
rel2.page=mgmtinfo->FirstPage;
rel2.slot=0;
// Set pointer to write the result to page file
rel3.page=mgmtinfo3->FirstPage;
rel3.slot=0;
printf("\nJoined tuples are: \n");
// Traversing
for(i=0;i<tc1;i++)
{
//printf("\n Entering here");
getRecord(table,rel1,r1);
//printf("\n Getting record");
getAttr(r1,s1,a1,&v1);
//printf("\n Here Successfully");
//printf("\n 2nd record %d",getRecord(table3,rel3,r3));
//printf("\n Ok then");
rel2.page=mgmtinfo2->FirstPage;
rel2.slot=0;
// traverses relation 2
for(j=0;j<tc2;j++)
{
getRecord(table2,rel2,r2);
getAttr(r2,s2,a2,&v2);
//printf("\n 2nd tuple");
if( v2->dt==DT_INT)
{
if(v2->v.intV == v1->v.intV)
{
//printf("\n 2nd tuple twice");
createRecord(&r3,s3);
print(s1,r1,v1,r3,s3);
x=s1->numAttr;
print2(s2,r2,v2,r3,s3,x,a2);
insertRecord(table3,r3);
res[z]=r3->id;
z++;
printf("\n");
if(rel3.slot < (mgmtinfo2->maxSlots-1))
{
//printf("\n Increase slot");
rel3.slot++;
}
else
{
rel3.page++;
rel3.slot=0;
}
}
}
if(rel2.slot < (mgmtinfo2->maxSlots-1))
{
//printf("\n Increase slot");
rel2.slot++;
}
else
{
rel2.page++;
rel2.slot=0;
}
}
if(rel1.slot < (mgmtinfo->maxSlots-1))
{
//printf("\n Increasing slots for r1");
rel1.slot++;
}
else
{
rel1.page++;
rel1.slot=0;
}
}
// Free all the allocated memory
free(r1);
free(r2);
free(v1);
free(v2);
return RC_OK;
}
int main(int argc, char *argv[]){
int i;
record* mod;
char *command;
fileName = argv[1];
phoneBookFile = fopen(fileName,"r+");
if(phoneBookFile == NULL){
phoneBookFile = fopen(fileName,"w+");
//printf("%s\n", "File not found, so was created");
}
phoneBook.size = 0;
head = phoneBook.persons;
rewind(phoneBookFile);
current.id = -1;
while (!feof(phoneBookFile)){
fscanf(phoneBookFile, "%d", ¤t.id);
current.name = read(phoneBookFile);
current.phoneNumber = read(phoneBookFile);
createRecord(current.id, current.name, current.phoneNumber);
}
maxId = (current.id > maxId) ? current.id : maxId;
maxId++;
while( true ){
command = read(stdin);
if(strcmp(command, "create") == 0){
current.name = read(stdin);
current.phoneNumber = read(stdin);
if(isCorrectName(current.name) && stabilizationPhoneNumber(current.phoneNumber)){
createRecord(maxId, current.name, current.phoneNumber);
maxId++;
fileUpdate();
}
} else if(strcmp(command, "delete") == 0){
scanf("%d", ¤t.id);
mod = getIdPrePosition(current.id);
if(mod != NULL ){
deleteRecord(mod);
phoneBook.size--;
fileUpdate();
} else {
//printf("%s\n", "ID not found.");
}
} else if(strcmp(command, "change") == 0){
scanf("%d ", ¤t.id);
mod = getIdPrePosition(current.id);
if(mod != NULL){
temp = mod->next;
command = read(stdin);
if(strcmp(command,"name") == 0){
current.name = read(stdin);
if(isCorrectName(current.name)){
strcpy(temp->name, current.name);
} else {
//printf("%s%s\n", "Not correct new name : ", current.name);
}
} else if(strcmp(command,"number") == 0){
current.phoneNumber = read(stdin);
if(stabilizationPhoneNumber(current.phoneNumber)){
strcpy(temp->phoneNumber, current.phoneNumber);
}
} else {
//printf("%s \"%s\" %s\n","Operation" , command, "is not defined");
}
fileUpdate();
} else {
//printf("%s\n", "ID not found.");
}
} else if(strcmp(command, "find") == 0){
command = read(stdin);
if(strlen(command) > 0){
bool f1, f2, isFound;
isFound = false;
f1 = isCorrectName(command);
if(!f1){
stabilizationPhoneNumber(command);
} else {
command = alphaToLower(command);
}
temp = head;
for (i = 0; i < phoneBook.size; i++){
f2 = false;
if(f1){//name
if(strstr(alphaToLower(temp->name), command)){
f2 = true;
}
} else{//number
if(strcmp(temp->phoneNumber, command) == 0){
f2 = true;
}
}
if(!isFound && f2){
isFound = true;
}
if(f2){
printf("%d ", temp->id);
printf("%s %s\n", temp->name, temp->phoneNumber);
}
temp = temp->next;
}
if(!isFound){
//printf("Not found.\n");
}
} else {
//printf("%s\n", "You did not enter anything.");
}
} else if(strcmp(command, "exit") == 0){
free(command);
fclose(phoneBookFile);
free(phoneBook.persons);
break;
} else {
//printf("%s \"%s\" %s\n","Operation" , command, "is not defined");
}
fflush(phoneBookFile);
fflush(stdout);
}
return 0;
}
/*
* AUTHOR: Nikhil
* DESC: Parse the sql stmts and execute the respective methods
*/
int main(int argc, char *argv[]){
char readline[ARRAY_LENGTH];
char temparray[ARRAY_LENGTH];
char *temp;
char *temp1;
char *tableName;
char *length;
int charLength;
int numattr=0,k,count=0,numTuples=0;
Schema *schema;
RID *rids;
char columns[ARRAY_LENGTH][ARRAY_LENGTH];
int i=0,j=0;
if(fork() == 0) {
execv("/usr/bin/clear", argv);
exit(1);
}
else wait(NULL);
printf("\n SQL parser\n");
while(1){
printf("\n >>");
fflush(stdin);
gets(readline);
memcpy(temparray,readline,sizeof(readline));
if(strstr(readline,"create table") || strstr(readline,"CREATE TABLE")){
parser(readline,argv);
tableName=strtok(argv[2],"(");
temp=strstr(temparray,"(");
temp++;
temp1=strtok(temp,",");
while(temp1!=NULL){
strcpy(columns[i],temp1);
temp1=strtok(NULL,",");
i++;
}
j=i;
numattr=j;
strcpy(columns[i-1],strtok(columns[i-1],")"));
char* colname[numattr];
char* datatype[numattr];
DataType dt[numattr];
int sizes[numattr];
int keyattr[numattr];
for(i=0;i<j;i++){
parser(columns[i],argv);
colname[i]=argv[0];
datatype[i]=argv[1];
if(strstr(Upper(datatype[i]),"VARCHAR")) {
dt[i]=DT_STRING;
length=strtok(datatype[i],"(");
length=strtok(NULL,"(");
charLength=strtok(length,")");
if(length==NULL){
printf("\nWrong Format");
break;
}
sizes[i]=atoi(charLength);
}
if(strstr(Upper(datatype[i]),"INT")){
dt[i]=DT_INT;
}
else if(strstr(Upper(datatype[i]),"FLOAT")){
dt[i]=DT_FLOAT;
}
else if(strstr(Upper(datatype[i]),"BOOL")){
dt[i]=DT_BOOL; }
else{
sizes[i]=0;
}
if(strstr(Upper(datatype[i]),"PRIMARYKEY")){
keyattr[i]=1;
}
else{
keyattr[i]=0;
}
}
for(k=0;k<sizeof(keyattr)/sizeof(keyattr[0]);k++){
if(keyattr[i]==1){
count++;
}
}
if(count>0){
printf("wrong format...cannot contain more than one primary key");
break;
}
schema=testSchema(numattr,colname,dt,sizes,keyattr);
initRecordManager(NULL);
createTable(Upper(tableName),schema);
printf("Table Created Successfully");
shutdownRecordManager();
}
if(strstr(Upper(readline),"INSERT INTO")){
parser(readline,argv);
tableName=strtok(argv[2],"(");
temp=strtok(temparray,"(");
temp=strtok(NULL,"(");
strcpy(columns[0],temp);
strcpy(columns[0],strtok(columns[0],")"));
char* values[i];
i=0;
values[0]=strtok(columns[0],",");
while(values[i]!=NULL){
i++;
values[i]=strtok(NULL,",");
}
numTuples=i;
rids = (RID *) malloc(sizeof(RID) * numTuples);
RM_TableData *table = (RM_TableData *) malloc(sizeof(RM_TableData));
initRecordManager(NULL);
int fd = open(Upper(tableName), O_WRONLY);
if(fd<0){
printf("Database Doesn't Exist");
break;
}
openTable(table, tableName);
schema=table->schema;
Record *result;
Value *value;
createRecord(&result, schema);
for(i = 0; i < numTuples; i++)
{
if(schema->dataTypes[i]==DT_INT || schema->dataTypes[i]==DT_FLOAT || schema->dataTypes[i]==DT_BOOL){
MAKE_VALUE(value, schema->dataTypes[i], atoi(values[i]));
}
if(schema->dataTypes[i]==DT_STRING){
MAKE_STRING_VALUE(value, values[i]);
}
setAttr(result, schema, i, value);
freeVal(value);
}
insertRecord(table,result);
rids[i] = result->id;
printf("Inserted Successfully");
closeTable(table);
shutdownRecordManager();
}
if(strstr(Upper(readline),"UPDATE TABLE")){
parser(readline,argv);
tableName=strtok(argv[2],"(");
temp1=strtok(temparray,"(");
temp=strtok(NULL,"(");
strcpy(columns[0],temp);
strcpy(columns[0],strtok(columns[0],")"));
temp1=strtok(temp1,"=");
temp1=strtok(NULL,"=");
char* values[i];
i=0;
values[0]=strtok(columns[0],",");
while(values[i]!=NULL){
i++;
values[i]=strtok(NULL,",");
}
numTuples=i;
rids = (RID *) malloc(sizeof(RID) * numTuples);
RM_TableData *table = (RM_TableData *) malloc(sizeof(RM_TableData));
initRecordManager(NULL);
int fd = open(Upper(tableName), O_WRONLY);
if(fd<0){
printf("Database Doesn't Exist");
break;
}
openTable(table, Upper(tableName));
schema=table->schema;
Record *result;
Value *value;
createRecord(&result, schema);
for(i = 0; i < numTuples; i++)
{
if(schema->dataTypes[i]==DT_INT || schema->dataTypes[i]==DT_FLOAT || schema->dataTypes[i]==DT_BOOL){
MAKE_VALUE(value, schema->dataTypes[i], atoi(values[i]));
}
if(schema->dataTypes[i]==DT_STRING){
MAKE_STRING_VALUE(value, values[i]);
}
setAttr(result, schema, i, value);
freeVal(value);
}
result->id=rids[i] ;
updateRecord(table,result);
printf("Updated Successfully");
closeTable(table);
shutdownRecordManager();
}
if(strstr(Upper(readline),"DELETE FROM")){
parser(readline,argv);
tableName=strtok(argv[2],"(");
temp=strtok(temparray,"(");
temp=strtok(NULL,"(");
strcpy(columns[0],temp);
strcpy(columns[0],strtok(columns[0],")"));
int r_id=atoi(columns[0]);
numTuples=i;
rids = (RID *) malloc(sizeof(RID) * numTuples);
RM_TableData *table = (RM_TableData *) malloc(sizeof(RM_TableData));
initRecordManager(NULL);
int fd = open(Upper(tableName), O_WRONLY);
if(fd<0){
printf("Database Doesn't Exist");
break;
}
openTable(table, Upper(tableName));
schema=table->schema;
deleteRecord(table,rids[r_id]);
printf("Deleted Successfully");
closeTable(table);
shutdownRecordManager();
}
}
}
