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/*
* Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2.0, as
* published by the Free Software Foundation.
*
* This program is also distributed with certain software (including
* but not limited to OpenSSL) that is licensed under separate terms,
* as designated in a particular file or component or in included license
* documentation. The authors of MySQL hereby grant you an
* additional permission to link the program and your derivative works
* with the separately licensed software that they have included with
* MySQL.
*
* Without limiting anything contained in the foregoing, this file,
* which is part of MySQL Connector/C++, is also subject to the
* Universal FOSS Exception, version 1.0, a copy of which can be found at
* http://oss.oracle.com/licenses/universal-foss-exception.
*
* 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, version 2.0, 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.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <cppconn/exception.h>
#include "mysql_util.h"
#include "mysql_debug.h"
#include "mysql_resultbind.h"
#include "nativeapi/native_statement_wrapper.h"
#include "nativeapi/native_resultset_wrapper.h"
#include <string.h>
#include <boost/scoped_ptr.hpp>
namespace sql
{
namespace mysql
{
struct st_buffer_size_type
{
char * buffer;
size_t size;
enum_field_types type;
st_buffer_size_type(char * b, size_t s, enum_field_types t) : buffer(b), size(s), type(t) {}
};
/* {{{ allocate_buffer_for_field() -I- */
typedef std::pair<char *, size_t> BufferSizePair;
static struct st_buffer_size_type
allocate_buffer_for_field(const MYSQL_FIELD * const field)
{
switch (field->type)
{
case MYSQL_TYPE_NULL:
return st_buffer_size_type(NULL, 0, field->type);
case MYSQL_TYPE_TINY:
return st_buffer_size_type(new char[1], 1, field->type);
case MYSQL_TYPE_SHORT:
return st_buffer_size_type(new char[2], 2, field->type);
case MYSQL_TYPE_INT24:
case MYSQL_TYPE_LONG:
case MYSQL_TYPE_FLOAT:
return st_buffer_size_type(new char[4], 4, field->type);
case MYSQL_TYPE_DOUBLE:
case MYSQL_TYPE_LONGLONG:
return st_buffer_size_type(new char[8], 8, field->type);
case MYSQL_TYPE_YEAR:
return st_buffer_size_type(new char[2], 2, MYSQL_TYPE_SHORT);
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_DATE:
case MYSQL_TYPE_TIME:
case MYSQL_TYPE_DATETIME:
return st_buffer_size_type(new char[sizeof(MYSQL_TIME)], sizeof(MYSQL_TIME), field->type);
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
case MYSQL_TYPE_LONG_BLOB:
case MYSQL_TYPE_BLOB:
case MYSQL_TYPE_STRING:
case MYSQL_TYPE_VAR_STRING:
#if LIBMYSQL_VERSION_ID > 50700
case MYSQL_TYPE_JSON:
#endif //LIBMYSQL_VERSION_ID > 50700
return st_buffer_size_type(new char[field->max_length + 1], field->max_length + 1, field->type);
case MYSQL_TYPE_DECIMAL:
case MYSQL_TYPE_NEWDECIMAL:
return st_buffer_size_type(new char[64], 64, field->type);
#if A1
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_YEAR:
return st_buffer_size_type(new char[10], 10, field->type);
#endif
#if A0
// There two are not sent over the wire
case MYSQL_TYPE_ENUM:
case MYSQL_TYPE_SET:
#endif
case MYSQL_TYPE_BIT:
return st_buffer_size_type(new char[8], 8, MYSQL_TYPE_BIT);
case MYSQL_TYPE_GEOMETRY:
default:
// TODO: Andrey, there can be crashes when we go through this. Please fix.
throw sql::InvalidArgumentException("allocate_buffer_for_field: invalid rbind data type");
}
}
/* }}} */
/* {{{ MySQL_ResultBind::MySQL_ResultBind -I- */
MySQL_ResultBind::MySQL_ResultBind(boost::shared_ptr< NativeAPI::NativeStatementWrapper > & stmt,
boost::shared_ptr< MySQL_DebugLogger > & log)
: num_fields(0), is_null(NULL), err(NULL), len(NULL), proxy(stmt), logger(log), rbind(NULL)
{
}
/* }}} */
/* {{{ MySQL_ResultBind::~MySQL_ResultBind() -I- */
MySQL_ResultBind::~MySQL_ResultBind()
{
if (rbind.get()) {
for (unsigned int i = 0; i < num_fields; ++i) {
delete[] (char *) rbind[i].buffer;
}
}
}
/* }}} */
/* {{{ MySQL_ResultBind::bindResult() -I- */
void MySQL_ResultBind::bindResult()
{
CPP_ENTER("MySQL_Prepared_Statement::bindResult");
for (unsigned int i = 0; i < num_fields; ++i) {
delete[] (char *) rbind[i].buffer;
}
rbind.reset(NULL);
is_null.reset(NULL);
err.reset(NULL);
len.reset(NULL);
num_fields = proxy->field_count();
if (!num_fields) {
return;
}
rbind.reset(new MYSQL_BIND[num_fields]);
memset(rbind.get(), 0, sizeof(MYSQL_BIND) * num_fields);
is_null.reset(new my_bool[num_fields]);
memset(is_null.get(), 0, sizeof(my_bool) * num_fields);
err.reset(new my_bool[num_fields]);
memset(err.get(), 0, sizeof(my_bool) * num_fields);
len.reset(new unsigned long[num_fields]);
memset(len.get(), 0, sizeof(unsigned long) * num_fields);
boost::scoped_ptr< NativeAPI::NativeResultsetWrapper > resultMeta(proxy->result_metadata());
for (unsigned int i = 0; i < num_fields; ++i) {
MYSQL_FIELD * field = resultMeta->fetch_field();
struct st_buffer_size_type p = allocate_buffer_for_field(field);
rbind[i].buffer_type= p.type;
rbind[i].buffer = p.buffer;
rbind[i].buffer_length= static_cast<unsigned long>(p.size);
rbind[i].length = &len[i];
rbind[i].is_null = &is_null[i];
rbind[i].error = &err[i];
rbind[i].is_unsigned= field->flags & UNSIGNED_FLAG;
}
if (proxy->bind_result(rbind.get())) {
CPP_ERR_FMT("Couldn't bind : %d:(%s) %s", proxy->errNo(), proxy->sqlstate().c_str(), proxy->error().c_str());
sql::mysql::util::throwSQLException(*proxy.get());
}
}
/* }}} */
} /* namespace mysql */
} /* namespace sql */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
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