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mssql_driver.cpp
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/*****************************************************************************
The MIT License
Copyright © 2021 Egorov Vladimir, <[email protected]>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include "mssql_driver.h"
#include "shared/break_point.h"
#include "shared/safe_singleton.h"
#include "shared/logger/logger.h"
#include "shared/logger/format.h"
#include "shared/qt/quuidex.h"
#include "shared/qt/stream_init.h"
#include "shared/qt/logger_operators.h"
#include "shared/thread/thread_utils.h"
#include <QDateTime>
#include <QVariant>
#include <QSqlField>
#include <QSqlIndex>
#include <byteswap.h>
#define log_error_m alog::logger().error (alog_line_location, "MssqlDrv")
#define log_warn_m alog::logger().warn (alog_line_location, "MssqlDrv")
#define log_info_m alog::logger().info (alog_line_location, "MssqlDrv")
#define log_verbose_m alog::logger().verbose (alog_line_location, "MssqlDrv")
#define log_debug_m alog::logger().debug (alog_line_location, "MssqlDrv")
#define log_debug2_m alog::logger().debug2 (alog_line_location, "MssqlDrv")
#ifndef SQL_SS_TIME2
#define SQL_SS_TIME2 -154
#endif
#ifndef SQL_SS_TIMESTAMPOFFSET
#define SQL_SS_TIMESTAMPOFFSET -155
#endif
namespace db {
namespace mssql {
namespace {
inline quint64 addrToNumber(void* addr)
{
return reinterpret_cast<QIntegerForSizeof<void*>::Unsigned>(addr);
}
const SQLINTEGER COL_NAME_SIZE = 256;
const SQLSMALLINT TABLE_NAME_SIZE = 128;
const SQLINTEGER DATETIME_PRECISION = 19;
const SQLSMALLINT qParamType[4] =
{
SQL_PARAM_INPUT,
SQL_PARAM_INPUT,
SQL_PARAM_OUTPUT,
SQL_PARAM_INPUT_OUTPUT
};
QPair<QString, int> warnODBCHandle(int handleType, SQLHANDLE handle)
{
int index = 1;
QString descript;
int errorCode = 0;
while (true)
{
SQLINTEGER errCode = 0; // Нативный код ошибки, возвращаемый функцией SQLGetDiagRecW
SQLSMALLINT descrLen = 0;
ushort state[SQL_SQLSTATE_SIZE + 1];
SQLRETURN rc;
rc = SQLGetDiagRecW(handleType, handle, index, state, &errCode,
0, 0, &descrLen);
if (!SQL_SUCCEEDED(rc) || (descrLen <= 0))
{
//descript.resize(msgLen + 1);
log_error_m << "Failed get message length";
return {descript, errorCode};
}
ushort descr[descrLen + 2] = {0};
rc = SQLGetDiagRecW(handleType, handle, index, state, &errCode,
(SQLWCHAR*)descr, descrLen + 1, 0);
if (SQL_SUCCEEDED(rc))
{
errorCode = errCode;
QString tmpstore = QString::fromUtf16(descr, descrLen);
if (descript != tmpstore)
{
if (!descript.isEmpty())
descript += QChar(' ');
descript += tmpstore;
}
}
else if (rc == SQL_ERROR
|| rc == SQL_INVALID_HANDLE
|| rc == SQL_NO_DATA)
{
return {descript, errorCode};
}
++index;
}
return {descript, errorCode};
}
//QString qODBCWarn(const SQLHANDLE stmt, const SQLHANDLE envHandle = 0,
// const SQLHANDLE dbc = 0, int* nativeCode = 0)
//{
// QString result;
// if (stmt)
// {
// const QString hMessage = qWarnODBCHandle(SQL_HANDLE_STMT, stmt, nativeCode);
// if (!hMessage.isEmpty())
// {
// if (!result.isEmpty())
// result += QChar(' ');
// result += hMessage;
// }
// }
// if (envHandle)
// result += qWarnODBCHandle(SQL_HANDLE_ENV, envHandle, nativeCode);
// if (dbc)
// {
// QString dMessage = qWarnODBCHandle(SQL_HANDLE_DBC, dbc, nativeCode);
// if (!dMessage.isEmpty())
// {
// if (!result.isEmpty())
// result += QChar(' ');
// result += dMessage;
// }
// }
// return result;
//}
QVariant::Type decodeODBCType(SQLSMALLINT sqlType, bool isSigned = true)
{
switch (sqlType)
{
case SQL_FLOAT: // [float]
return QVariant::Type(qMetaTypeId<float>());
case SQL_DECIMAL: // [decimal](18, 0)
case SQL_NUMERIC: // [numeric](18, 0)
case SQL_REAL: // [real]
return QVariant::Double;
case SQL_SMALLINT: // [smallint]
return (isSigned) ? QVariant::Int : QVariant::UInt;
case SQL_INTEGER: // [int]
return (isSigned) ? QVariant::Int : QVariant::UInt;
case SQL_BIT: // [bit]
return QVariant::Bool;
case SQL_TINYINT: // [tinyint]
return QVariant::Char;
case SQL_BIGINT: // [bigint]
return (isSigned) ? QVariant::LongLong : QVariant::ULongLong;
case SQL_BINARY: // [binary](n), [timestamp]
case SQL_VARBINARY: // [varbinary](n), [varbinary](max)
return QVariant::ByteArray;
case SQL_TYPE_DATE: // [date]
return QVariant::Date;
case SQL_SS_TIME2: // [time](7)
return QVariant::Time;
case SQL_TYPE_TIMESTAMP: // [datetime], [datetime2](7), [smalldatetime]
case SQL_SS_TIMESTAMPOFFSET: // [datetimeoffset](7)
return QVariant::DateTime;
case SQL_WCHAR: // [nchar](10)
case SQL_WVARCHAR: // [nvarchar](50), [nvarchar](max)
case SQL_CHAR: // [char](n)
case SQL_VARCHAR: // [varchar](n),
return QVariant::String;
#if (ODBCVER >= 0x0350)
case SQL_GUID:
return QVariant::Uuid;
#endif
}
log_warn_m << "decodeODBCType(): unknown datatype: " << int(sqlType);
return QVariant::Invalid;
}
QString buffToString(const char* buff)
{
return QString::fromUtf8(buff);
}
QString buffToString(const ushort* buff)
{
return QString::fromUtf16(buff);
}
template<typename CharType>
QString stringData(SQLHANDLE stmt, int column, int colSize)
{
if (colSize <= 0) colSize = 256;
if (colSize > 65536) colSize = 65536;
++colSize; // make sure there is room for more than the 0 termination
QString fieldVal;
SQLLEN lenIndicator = 0;
CharType buff[colSize] = {0};
while (true)
{
SQLRETURN rc = SQLGetData(stmt, column + 1, SQL_C_TCHAR, buff,
colSize * sizeof(buff), &lenIndicator);
if (SQL_SUCCEEDED(rc))
{
if (lenIndicator == SQL_NULL_DATA)
{
fieldVal.clear();
break;
}
// starting with ODBC Native Client 2012, SQL_NO_TOTAL is returned
// instead of the length (which sometimes was wrong in older versions)
// see link for more info: http://msdn.microsoft.com/en-us/library/jj219209.aspx
// if length indicator equals SQL_NO_TOTAL, indicating that
// more data can be fetched, but size not known, collect data
// and fetch next block
if (lenIndicator == SQL_NO_TOTAL)
{
fieldVal += buffToString(buff);
continue;
}
// if SQL_SUCCESS_WITH_INFO is returned, indicating that
// more data can be fetched, the length indicator does NOT
// contain the number of bytes returned - it contains the
// total number of bytes that CAN be fetched
// int rSize = (rc == SQL_SUCCESS_WITH_INFO)
// ? colSize
// : int(lengthIndicator / sizeof(ushort));
fieldVal += buffToString(buff);
if (lenIndicator < SQLLEN(colSize * sizeof(CharType)))
{
// workaround for Drivermanagers that don't return SQL_NO_DATA
break;
}
}
else if (rc == SQL_NO_DATA)
{
break;
}
else
{
auto [detail, code] = warnODBCHandle(SQL_HANDLE_STMT, stmt);
log_error_m << log_format(
"Failed fetching data. Detail: %?. Error code: %?", detail, code);
fieldVal.clear();
break;
}
}
return fieldVal;
}
inline QString stringDataA(SQLHANDLE stmt, int column, int colSize)
{
return stringData<char>(stmt, column, colSize);
}
inline QString stringDataW(SQLHANDLE stmt, int column, int colSize)
{
return stringData<ushort>(stmt, column, colSize);
}
QVariant binaryData(SQLHANDLE stmt, int column)
{
SQLSMALLINT colNameLen;
SQLSMALLINT colType;
SQLULEN colSize;
SQLSMALLINT colScale;
SQLSMALLINT nullable;
SQLLEN lengthIndicator = 0;
ushort colName[COL_NAME_SIZE] = {0};
SQLRETURN rc = SQLDescribeColW(stmt, column + 1, colName, COL_NAME_SIZE,
&colNameLen, &colType, &colSize, &colScale, &nullable);
if (!SQL_SUCCEEDED(rc))
{
log_warn_m << "Unable get describe for column " << column;
return QVariant::Invalid;
}
// SQLDescribeCol may return 0 if size cannot be determined
if (colSize == 0) colSize = 255;
if (colSize > 65536) colSize = 65536;
QByteArray fieldVal;
fieldVal.resize(colSize);
ulong read = 0;
while (true)
{
// Чтение блока 64КБ
rc = SQLGetData(stmt, column + 1, SQL_C_BINARY, (char*)(fieldVal.constData() + read),
colSize, &lengthIndicator);
if (!SQL_SUCCEEDED(rc))
{
log_error_m << "Failed get data chunk. Column: " << column;
return QVariant::Invalid;
}
if (lengthIndicator == SQL_NULL_DATA)
return QVariant(QVariant::ByteArray);
// Если есть ещё данные, то будет продолжено чтение следующих 64КБ
if (lengthIndicator > SQLLEN(colSize) || lengthIndicator == SQL_NO_TOTAL)
{
read += colSize;
colSize = 65536;
}
else
{
read += lengthIndicator;
}
if (rc == SQL_SUCCESS)
{ // the whole field was read in one chunk
fieldVal.resize(read);
break;
}
// Увеличение буфера на размер прочитанного блока 64КБ
fieldVal.resize(fieldVal.size() + colSize);
}
return fieldVal;
}
QVariant guidData(SQLHANDLE stmt, int column)
{
SQLSMALLINT colNameLen;
SQLSMALLINT colType;
SQLULEN colSize;
SQLSMALLINT colScale;
SQLSMALLINT nullable;
SQLLEN lenIndicator = 0;
SQLRETURN rc = SQL_ERROR;
ushort colName[COL_NAME_SIZE] = {0};
rc = SQLDescribeColW(stmt, column + 1, colName, COL_NAME_SIZE,
&colNameLen, &colType, &colSize, &colScale, &nullable);
if (!SQL_SUCCEEDED(rc))
{
log_warn_m << "Unable get describe for column " << column;
return QVariant::Invalid;
}
// SQLDescribeCol may return 0 if size cannot be determined
if (!colSize)
return QVariant(QVariant::Uuid);
if (colSize != 36)
{
log_warn_m << log_format("Guid incorrect size %? (expect %?) "
"for column %?", colSize, 36, column);
return QVariant::Invalid;
}
// api = 36, но после 16 - мусор
colSize = 16;
QByteArray fieldVal;
fieldVal.resize(colSize);
rc = SQLGetData(stmt, column + 1, SQL_C_GUID, (char*)fieldVal.constData(),
colSize, &lenIndicator);
if (!SQL_SUCCEEDED(rc))
return QVariant(QVariant::Uuid);
if (lenIndicator == SQL_NULL_DATA)
return QVariant(QVariant::Uuid);
QUuid uuid;
memcpy((char*)&uuid, fieldVal.data(), colSize);
return QVariant(uuid);
}
QVariant intData(SQLHANDLE stmt, int column, bool isSigned = true)
{
SQLINTEGER intbuf = 0;
SQLLEN lenIndicator = 0;
SQLRETURN rc = SQLGetData(stmt, column + 1, (isSigned) ? SQL_C_SLONG : SQL_C_ULONG,
&intbuf, sizeof(intbuf), &lenIndicator);
if (!SQL_SUCCEEDED(rc))
return QVariant(QVariant::Invalid);
if (lenIndicator == SQL_NULL_DATA)
return QVariant(QVariant::Int);
if (isSigned)
return int(intbuf);
else
return uint(intbuf);
}
QVariant doubleData(SQLHANDLE stmt, int column)
{
SQLDOUBLE dblbuf;
SQLLEN lengthIndicator = 0;
SQLRETURN rc = SQLGetData(stmt, column + 1, SQL_C_DOUBLE,
&dblbuf, sizeof(dblbuf), &lengthIndicator);
if (!SQL_SUCCEEDED(rc))
return QVariant(QVariant::Invalid);
if (lengthIndicator == SQL_NULL_DATA)
return QVariant(QVariant::Double);
return double(dblbuf);
}
long strToHexToVal(SQL_NUMERIC_STRUCT& numStruct)
{
int last = 1;
long value = 0;
for (int i = 0; i <= 15; ++i)
{
int current = (int)numStruct.val[i];
int a = current % 16;
int b = current / 16;
value += last * a;
last = last * 16;
value += last * b;
last = last * 16;
}
return value;
}
QVariant numericData(SQLHANDLE stmt, int column)
{
SQLLEN lenIndicator = 0;
SQL_NUMERIC_STRUCT numStruct;
SQLRETURN rc = SQLGetData(stmt, column + 1, SQL_C_NUMERIC,
&numStruct, sizeof(numStruct), &lenIndicator);
long divisor = 1;
if (numStruct.scale > 0)
{
for (int i = 0; i < numStruct.scale; ++i)
divisor = divisor * 10;
}
long myvalue = strToHexToVal(numStruct);
double finalVal = double(myvalue) / divisor;
int sign = 1;
if (!numStruct.sign)
sign = -1;
finalVal *= sign;
if (!SQL_SUCCEEDED(rc))
return QVariant(QVariant::Invalid);
if (lenIndicator == SQL_NULL_DATA)
//return QVariant::Type(qMetaTypeId<double>());
return QVariant::Double;
return finalVal;
}
QVariant bigIntData(SQLHANDLE stmt, int column, bool isSigned = true)
{
SQLBIGINT lngbuf = 0;
SQLLEN lenIndicator = 0;
SQLRETURN rc = SQLGetData(stmt, column + 1, (isSigned) ? SQL_C_SBIGINT : SQL_C_UBIGINT,
&lngbuf, sizeof(lngbuf), &lenIndicator);
if (!SQL_SUCCEEDED(rc))
return QVariant(QVariant::Invalid);
if (lenIndicator == SQL_NULL_DATA)
return QVariant(QVariant::LongLong);
if (isSigned)
return qint64(lngbuf);
else
return quint64(lngbuf);
}
QVariant bitData(SQLHANDLE stmt, int column)
{
bool boolbuf = 0;
SQLLEN lenIndicator = 0;
SQLRETURN rc = SQLGetData(stmt, column + 1, SQL_C_BIT,
&boolbuf, sizeof(boolbuf), &lenIndicator);
if (!SQL_SUCCEEDED(rc))
return QVariant(QVariant::Invalid);
if (lenIndicator == SQL_NULL_DATA)
return QVariant(QVariant::Bool);
return boolbuf;
}
//bool isAutoValue(const SQLHANDLE stmt, int column)
//{
// SQLLEN nNumericAttribute = 0; // Check for auto-increment
// const SQLRETURN rc = SQLColAttribute(stmt, column + 1, SQL_DESC_AUTO_UNIQUE_VALUE,
// 0, 0, 0, &nNumericAttribute);
// if (!SQL_SUCCEEDED(rc))
// {
// auto [detail, code] = warnODBCHandle(SQL_HANDLE_STMT, stmt);
// log_error_m << log_format("Unable to get autovalue attribute for column %?"
// ". Detail: %?. Error code: %?", column, detail, code);
// //PRINT_ERROR("qMakeField: Unable to get autovalue attribute for column " + QString::number(column), stmt);
// return false;
// }
// return (nNumericAttribute != SQL_FALSE);
//}
//// creates a QSqlField from a valid stmt generated
//// by SQLColumns. The stmt has to point to a valid position.
//QSqlField qMakeFieldInfo(const SQLHANDLE stmt, const DriverPtr& driver)
//{
// QString fname = qGetStringData(stmt, 3, -1);
// int type = qGetIntData(stmt, 4).toInt(); // column type
// QSqlField f(fname, qDecodeODBCType(type, driver));
// QVariant var = qGetIntData(stmt, 6);
// f.setLength(var.isNull() ? -1 : var.toInt()); // column size
// var = qGetIntData(stmt, 8).toInt();
// f.setPrecision(var.isNull() ? -1 : var.toInt()); // precision
// f.setSqlType(type);
// int required = qGetIntData(stmt, 10).toInt(); // nullable-flag
// // required can be SQL_NO_NULLS, SQL_NULLABLE or SQL_NULLABLE_UNKNOWN
// if (required == SQL_NO_NULLS)
// f.setRequired(true);
// else if (required == SQL_NULLABLE)
// f.setRequired(false);
// // else we don't know
// return f;
//}
//QSqlField qMakeFieldInfo(const Result* result, int i)
//{
// QString errorMessage;
// QSqlField field = qMakeFieldInfo(result->_stmt, i, &errorMessage);
// if (!errorMessage.isEmpty())
// PRINT_ERROR(errorMessage, result);
// return field;
//}
//QSqlField qMakeFieldInfo(const SQLHANDLE stmt, int i, QString* errorMessage)
//{
// SQLSMALLINT colNameLen;
// SQLSMALLINT colType;
// SQLULEN colSize;
// SQLSMALLINT colScale;
// SQLSMALLINT nullable;
// SQLRETURN rc = SQL_ERROR;
// //QVarLengthArray<ushort> colName(COLNAMESIZE);
// ushort colName[COL_NAME_SIZE] = {0};
// errorMessage->clear();
// rc = SQLDescribeColW(stmt, i + 1, colName, (SQLSMALLINT)COL_NAME_SIZE,
// &colNameLen, &colType, &colSize, &colScale, &nullable);
// if (!SQL_SUCCEEDED(rc))
// {
// *errorMessage = QStringLiteral("qMakeField: Unable to describe column ") + QString::number(i);
// return QSqlField();
// }
// SQLLEN unsignedFlag = SQL_FALSE;
// rc = SQLColAttribute (stmt, i + 1, SQL_DESC_UNSIGNED, 0, 0, 0, &unsignedFlag);
// if (!SQL_SUCCEEDED(rc))
// {
// PRINT_ERROR("qMakeFieldInfo: Unable to get column attributes for column " + QString::number(i), stmt);
// }
// QString qColName = QString::fromUtf16(colName);
// // nullable can be SQL_NO_NULLS, SQL_NULLABLE or SQL_NULLABLE_UNKNOWN
// QVariant::Type type = qDecodeODBCType(colType, unsignedFlag == SQL_FALSE);
// QSqlField f(qColName, type);
// f.setSqlType(colType);
// f.setLength(colSize == 0 ? -1 : int(colSize));
// f.setPrecision(colScale == 0 ? -1 : int(colScale));
// if (nullable == SQL_NO_NULLS)
// f.setRequired(true);
// else if (nullable == SQL_NULLABLE)
// f.setRequired(false);
// // else we don't know
// f.setAutoValue(isAutoValue(stmt, i));
// //QVarLengthArray<ushort> tableName(TABLENAMESIZE);
// ushort tableName[TABLE_NAME_SIZE] = {0};
// SQLSMALLINT tableNameLen;
// rc = SQLColAttribute(stmt, i + 1, SQL_DESC_BASE_TABLE_NAME,
// tableName, TABLE_NAME_SIZE, &tableNameLen, 0);
// if (SQL_SUCCEEDED(rc))
// f.setTableName(QString::fromUtf16(tableName, tableNameLen));
// return f;
//}
struct QueryParams
{
int nparams = {0};
char** paramValues = {0};
//int* paramLengths = {0};
//int* paramFormats = {0};
SQLLEN* indicators = {0};
QueryParams() = default;
DISABLE_DEFAULT_COPY(QueryParams)
~QueryParams()
{
for (int i = 0; i < nparams; ++i)
free(paramValues[i]);
delete [] paramValues;
delete [] indicators;
//delete [] paramLengths;
//delete [] paramFormats;
}
void init(int nparams)
{
this->nparams = nparams;
paramValues = new char* [nparams];
indicators = new SQLLEN[nparams];
//paramLengths = new int [nparams];
//paramFormats = new int [nparams];
for (int i = 0; i < nparams; ++i)
{
paramValues[i] = 0;
indicators [i] = 0;
//paramLengths[i] = 0;
//paramFormats[i] = 1;
}
}
};
} // namespace
//------------------------------- Transaction --------------------------------
Transaction::Transaction(const DriverPtr& drv) : _drv(drv)
{
log_debug2_m << "Transaction ctor. Address: " << addrToNumber(this);
Q_ASSERT(_drv.get());
_drv->captureTransactAddr(this);
}
Transaction::~Transaction()
{
log_debug2_m << "Transaction dtor. Address: " << addrToNumber(this);
if (isActive())
rollback();
_drv->releaseTransactAddr(this);
}
bool Transaction::begin(IsolationLevel /*isolationLevel*/)
{
pid_t threadId = trd::gettid();
if (_drv->threadId() != threadId)
{
log_error_m << "Failed begin transaction, threads identifiers not match"
<< ". Connection thread id: " << _drv->threadId()
<< ", current thread id: " << threadId;
return false;
}
if (!_drv->transactAddrIsEqual(this))
{
log_error_m << "Failed begin transaction, transaction not captured";
return false;
}
if (_drv->operationIsAborted())
{
log_error_m << "Failed begin transaction, sql-operation aborted"
<< ". Connect: " << addrToNumber(_drv->_connect);
return false;
}
if (!_drv->isOpen() || _drv->isOpenError())
{
log_error_m << "Failed begin transaction, database not open";
return false;
}
if (_isActive)
{
log_error_m << log_format("Transaction already begun: %?/%?",
addrToNumber(_drv->_connect), _transactId);
return false;
}
#define CHECK_ERROR_(MSG) \
if (!SQL_SUCCEEDED(rc)) { \
auto [detail, code] = warnODBCHandle(SQL_HANDLE_STMT, stmt); \
log_error_m << MSG \
<< ". Detail: " << detail \
<< ". Error code: " << code; \
return false; \
}
// SQLHANDLE stmt;
// SQLRETURN rc = SQLAllocHandle(SQL_HANDLE_STMT, _drv->_connect, &stmt);
// CHECK_ERROR_("Failed to allocate statement handle")
// rc = SQLExecDirect(stmt, (SQLCHAR*) "SELECT CURRENT_TRANSACTION_ID() as tid;", SQL_NTS);
// CHECK_ERROR_("Failed execute CURRENT_TRANSACTION_ID()")
// SQLLEN transactId = 0, szTransactId = 0;
// rc = SQLBindCol(stmt, 1, SQL_C_SLONG, &transactId, sizeof(transactId), &szTransactId);
// CHECK_ERROR_("Failed bind transaction id variable")
// rc = SQLFetch(stmt);
// CHECK_ERROR_("Failed fetch transaction id variable")
// //rc = SQLExecDirect(stmt, (SQLCHAR*) "SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED", SQL_NTS);
// rc = SQLCloseCursor(stmt);
// CHECK_ERROR_("Failed close cursor");
// rc = SQLFreeStmt(stmt, SQL_RESET_PARAMS);
// CHECK_ERROR_("Failed free the statement handle")
#undef CHECK_ERROR_
_transactId = 0;/*transactId;*/
_isActive = true;
log_debug2_m << log_format("Transaction begin: %?/%?",
addrToNumber(_drv->_connect), _transactId);
return true;
}
bool Transaction::commit()
{
pid_t threadId = trd::gettid();
if (_drv->threadId() != threadId)
{
log_error_m << "Failed commit transaction, threads identifiers not match"
<< ". Connection thread id: " << _drv->threadId()
<< ", current thread id: " << threadId;
return false;
}
if (!_drv->transactAddrIsEqual(this))
{
log_error_m << "Failed commit transaction, transaction not captured";
return false;
}
if (_drv->operationIsAborted())
{
log_error_m << "Failed commit transaction, sql-operation aborted"
<< ". Connect: " << addrToNumber(_drv->_connect);
return false;
}
if (!_drv->isOpen() || _drv->isOpenError())
{
log_error_m << "Failed commit transaction, database not open";
return false;
}
if (!_isActive)
{
log_error_m << "Failed commit transaction, transaction not begun"
<< ". Connect: " << addrToNumber(_drv->_connect);
return false;
}
SQLRETURN rc = SQLEndTran(SQL_HANDLE_DBC, _drv->_connect, SQL_COMMIT);
if (!SQL_SUCCEEDED(rc))
{
auto [detail, code] = warnODBCHandle(SQL_HANDLE_DBC, _drv->_connect);
log_error_m << log_format(
"Failed commit transaction: %?/%?. Detail: %?. Error code: %?",
addrToNumber(_drv->_connect), _transactId, detail, code);
_isActive = false;
_transactId = -1;
return false;
}
log_debug2_m << log_format("Transaction commit: %?/%?",
addrToNumber(_drv->_connect), _transactId);
_isActive = false;
_transactId = -1;
return true;
}
bool Transaction::rollback()
{
pid_t threadId = trd::gettid();
if (_drv->threadId() != threadId)
{
log_error_m << "Failed rollback transaction, threads identifiers not match"
<< ". Connection thread id: " << _drv->threadId()
<< ", current thread id: " << threadId;
return false;
}
if (!_drv->transactAddrIsEqual(this))
{
log_error_m << "Failed rollback transaction, transaction not captured";
return false;
}
if (!_drv->isOpen() || _drv->isOpenError())
{
log_error_m << "Failed rollback transaction, database not open";
return false;
}
if (!_isActive)
{
log_error_m << "Failed rollback transaction, transaction not begun"
<< ". Connect: " << addrToNumber(_drv->_connect);
return false;
}
SQLRETURN rc = SQLEndTran(SQL_HANDLE_DBC, _drv->_connect, SQL_ROLLBACK);
if (!SQL_SUCCEEDED(rc))
{
auto [detail, code] = warnODBCHandle(SQL_HANDLE_DBC, _drv->_connect);
log_error_m << log_format(
"Failed rollback transaction: %?/%?. Detail: %?. Error code: %?",
addrToNumber(_drv->_connect), _transactId, detail, code);
_isActive = false;
_transactId = -1;
return false;
}
log_debug2_m << log_format("Transaction rollback: %?/%?",
addrToNumber(_drv->_connect), _transactId);
_isActive = false;
_transactId = -1;
return true;
}
bool Transaction::isActive() const
{
return _isActive;
}
//---------------------------------- Result ----------------------------------
// Выводит в лог сокращенное описание ошибки без идентификатора транзакции
#define SET_LAST_ERROR1(MSG, ERR_TYPE) \
setLastError1(MSG, ERR_TYPE, __func__, __LINE__);
// Выводит в лог детализированное описание ошибки с идентификатором транзакции
#define SET_LAST_ERROR2(MSG, ERR_TYPE, DETAIL, CODE) \
setLastError2(MSG, ERR_TYPE, __func__, __LINE__, DETAIL, CODE);
#define CHECK_ERROR(MSG, ERR_TYPE) \
checkError(MSG, ERR_TYPE, rc, __func__, __LINE__)
Result::Result(const DriverPtr& drv, ForwardOnly forwardOnly)
: SqlCachedResult(drv.get()),
_drv(drv)
{
Q_ASSERT(_drv.get());
setForwardOnly(forwardOnly == ForwardOnly::Yes);
chk_connect_d(_drv.get(), &Driver::abortStatement, this, &Result::abortStatement);
}
Result::Result(const Transaction::Ptr& trans, ForwardOnly forwardOnly)
: SqlCachedResult(trans->_drv.get()),
_drv(trans->_drv),
_externalTransact(trans)
{
Q_ASSERT(_drv.get());
setForwardOnly(forwardOnly == ForwardOnly::Yes);
chk_connect_d(_drv.get(), &Driver::abortStatement, this, &Result::abortStatement);
}
Result::~Result()
{
cleanup();
}
void Result::setLastError1(const QString& msg, QSqlError::ErrorType type,
const char* func, int line)
{
setLastError(QSqlError("MssqlResult", msg, type, "1"));
constexpr const char* file_name = alog::detail::file_name(__FILE__);
alog::logger().error(file_name, func, line, "MssqlDrv") << msg;
}
void Result::setLastError2(const QString& msg, QSqlError::ErrorType type,
const char* func, int line, const QString& detail,
int code)
{
setLastError(QSqlError("MssqlResult", msg, type, "1"));
constexpr const char* file_name = alog::detail::file_name(__FILE__);
quint64 connectId = addrToNumber(_drv->_connect);
alog::Line logLine = alog::logger().error(file_name, func, line, "MssqlDrv")
<< log_format("%?. Transact: %?/%?", msg, connectId, transactId());
if (!detail.isEmpty())
logLine << log_format(". Detail: %?. Error code: %?", detail , code);
}
bool Result::checkError(const char* msg, QSqlError::ErrorType type, SQLRETURN rc,
const char* func, int line)
{
if (!SQL_SUCCEEDED(rc))
{
auto [detail, code] = warnODBCHandle(SQL_HANDLE_STMT, _stmt);
setLastError2(msg, type, func, line, detail, code);
return true;
}
return false;
}
bool Result::isSelectSql() const
{
return isSelect();
}
void Result::cleanup()
{
log_debug2_m << "Begin dataset cleanup. Connect: " << addrToNumber(_drv->_connect);
if (!_externalTransact)
if (_internalTransact && _internalTransact->isActive())
{
if (isSelectSql())
rollbackInternalTransact();
else
commitInternalTransact();
}
if (_stmt)
{
SQLRETURN rc = SQLFreeStmt(_stmt, SQL_RESET_PARAMS);
CHECK_ERROR("Failed free the statement handle", QSqlError::StatementError);
_stmt = nullptr;
}
_preparedQuery.clear();
_numRowsAffected = -1;
SqlCachedResult::cleanup();
log_debug2_m << "End dataset cleanup. Connect: " << addrToNumber(_drv->_connect);
}
bool Result::beginInternalTransact()
{
if (_externalTransact)
return true;
if (_internalTransact && _internalTransact->isActive())
{
log_debug2_m << "Internal transaction already begun";
return true;
}
if (_internalTransact.empty())
_internalTransact = createTransact(_drv);
if (!_internalTransact->begin())
{
// Детали сообщения об ошибке пишутся в лог внутри метода begin()
SET_LAST_ERROR1("Failed begin internal transaction",
QSqlError::TransactionError)