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odbc_connection.c
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odbc_connection.c
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/*
* Copyright (C) 2008 Search Solution Corporation. All rights reserved by Search Solution.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* - Neither the name of the <ORGANIZATION> nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
*/
#include <windows.h>
#include <stdio.h>
#include "odbc_portable.h"
#include "sqlext.h"
#include "cas_cci.h"
#include "odbc_connection.h"
#include "odbc_diag_record.h"
#include "odbc_util.h"
#include "odbc_type.h"
#include "odbcinst.h"
#include "odbc_version.i"
#define SMALL_BUF_SIZE 256
static const char *CUBRID_DRIVER_ODBC_VER = "03.52";
static const char *CUBRID_DRIVER_VER = VERSION_STRING;
static const char *CUBRID_DRIVER_NAME = "cubrid_odbc.dll";
static const char *CUBRID_DBMS_NAME = "CUBRID";
static const char *CUBRID_SPECIAL_CHARACTERS = "#%";
static const char *CUBRID_TABLE_TERM = "table";
static const char *CUBRID_KEYWORDS = "";
#define GET_SET_SIZE(x) ((sizeof (x)) / (sizeof ((x)[0])))
#define SQL_FUNC_SET(pfExists, uwAPI) \
( *(((short*) (pfExists)) + ((uwAPI) >> 4)) \
|= 1 << ((uwAPI) & 0x000F) )
typedef struct tagODBC_FUNCTIONS_SUPPORT_INFO
{
SQLUSMALLINT func_id;
SQLUSMALLINT supported;
} ODBC_FUNCTIONS_SUPPORT_INFO;
static ODBC_FUNCTIONS_SUPPORT_INFO functions_support_info_set[] = {
{SQL_API_SQLALLOCHANDLE, SQL_TRUE},
{SQL_API_SQLBINDCOL, SQL_TRUE},
{SQL_API_SQLCANCEL, SQL_TRUE},
{SQL_API_SQLCLOSECURSOR, SQL_TRUE},
{SQL_API_SQLCOLATTRIBUTE, SQL_TRUE},
{SQL_API_SQLCONNECT, SQL_TRUE},
{SQL_API_SQLCOPYDESC, SQL_TRUE},
{SQL_API_SQLDATASOURCES, SQL_TRUE},
{SQL_API_SQLDESCRIBECOL, SQL_TRUE},
{SQL_API_SQLDISCONNECT, SQL_TRUE},
{SQL_API_SQLDRIVERS, SQL_TRUE},
{SQL_API_SQLENDTRAN, SQL_TRUE},
{SQL_API_SQLEXECDIRECT, SQL_TRUE},
{SQL_API_SQLEXECUTE, SQL_TRUE},
{SQL_API_SQLEXTENDEDFETCH, SQL_TRUE},
{SQL_API_SQLFETCH, SQL_TRUE},
{SQL_API_SQLFETCHSCROLL, SQL_TRUE},
{SQL_API_SQLFREEHANDLE, SQL_TRUE},
{SQL_API_SQLFREESTMT, SQL_TRUE},
{SQL_API_SQLGETCONNECTATTR, SQL_TRUE},
{SQL_API_SQLGETCURSORNAME, SQL_TRUE},
{SQL_API_SQLGETDATA, SQL_TRUE},
{SQL_API_SQLGETDESCFIELD, SQL_TRUE},
{SQL_API_SQLGETDESCREC, SQL_TRUE},
{SQL_API_SQLGETDIAGFIELD, SQL_TRUE},
{SQL_API_SQLGETDIAGREC, SQL_TRUE},
{SQL_API_SQLGETENVATTR, SQL_TRUE},
{SQL_API_SQLGETFUNCTIONS, SQL_TRUE},
{SQL_API_SQLGETINFO, SQL_TRUE},
{SQL_API_SQLGETSTMTATTR, SQL_TRUE},
{SQL_API_SQLGETTYPEINFO, SQL_TRUE},
{SQL_API_SQLNUMRESULTCOLS, SQL_TRUE},
{SQL_API_SQLPARAMDATA, SQL_TRUE},
{SQL_API_SQLPREPARE, SQL_TRUE},
{SQL_API_SQLPUTDATA, SQL_TRUE},
{SQL_API_SQLROWCOUNT, SQL_TRUE},
{SQL_API_SQLSETCONNECTATTR, SQL_TRUE},
{SQL_API_SQLSETCURSORNAME, SQL_TRUE},
{SQL_API_SQLSETDESCFIELD, SQL_TRUE},
{SQL_API_SQLSETDESCREC, SQL_TRUE},
{SQL_API_SQLSETENVATTR, SQL_TRUE},
{SQL_API_SQLSETSTMTATTR, SQL_TRUE},
{SQL_API_SQLBINDPARAMETER, SQL_TRUE},
{SQL_API_SQLDRIVERCONNECT, SQL_TRUE},
{SQL_API_SQLNATIVESQL, SQL_TRUE},
{SQL_API_SQLNUMPARAMS, SQL_TRUE},
{SQL_API_SQLMORERESULTS, SQL_TRUE},
{SQL_API_SQLBULKOPERATIONS, SQL_TRUE},
{SQL_API_SQLSETPOS, SQL_TRUE},
{SQL_API_SQLCOLUMNS, SQL_TRUE},
{SQL_API_SQLSPECIALCOLUMNS, SQL_TRUE},
{SQL_API_SQLTABLES, SQL_TRUE},
{SQL_API_SQLSTATISTICS, SQL_TRUE},
{SQL_API_SQLPRIMARYKEYS, SQL_TRUE},
{SQL_API_SQLFOREIGNKEYS, SQL_TRUE},
{SQL_API_SQLPROCEDURECOLUMNS, SQL_TRUE},
{SQL_API_SQLPROCEDURES, SQL_TRUE},
{SQL_API_SQLTABLEPRIVILEGES, SQL_TRUE},
{SQL_API_SQLPARAMOPTIONS, SQL_TRUE},
{SQL_API_SQLTRANSACT, SQL_TRUE},
/* not support */
{SQL_API_SQLCOLUMNPRIVILEGES, SQL_FALSE},
/* support by ODBC manager */
{SQL_API_SQLBROWSECONNECT, SQL_FALSE},
{SQL_API_SQLDESCRIBEPARAM, SQL_TRUE},
};
PRIVATE int get_server_setting (ODBC_CONNECTION * conn);
PRIVATE RETCODE set_isolation_level (ODBC_CONNECTION * conn);
PRIVATE RETCODE get_db_version (ODBC_CONNECTION * conn);
/************************************************************************
* name: odbc_alloc_connection
* arguments:
* ODBC_ENV *env
* ODBC_CONNECTION **conptr
* returns/side-effects:
* description:
* NOTE:
************************************************************************/
PUBLIC RETCODE
odbc_alloc_connection (ODBC_ENV * env, ODBC_CONNECTION ** connptr)
{
ODBC_CONNECTION *conn;
conn = UT_ALLOC (sizeof (ODBC_CONNECTION));
if (conn == NULL)
{
odbc_set_diag (env->diag, "HY001", 0, NULL);
*connptr = SQL_NULL_HDBC;
return ODBC_ERROR;
}
memset (conn, 0, sizeof (ODBC_CONNECTION));
conn->handle_type = SQL_HANDLE_DBC;
conn->diag = odbc_alloc_diag ();
conn->omit_schema = 0;
/* attribute init */
conn->attr_access_mode = SQL_MODE_DEFAULT;
conn->attr_async_enable = SQL_ASYNC_ENABLE_ON;
conn->attr_auto_ipd = SQL_FALSE;
conn->attr_autocommit = SQL_AUTOCOMMIT_ON;
conn->attr_connection_timeout = 0;
conn->attr_current_catalog = NULL;
conn->attr_login_timeout = SQL_LOGIN_TIMEOUT_DEFAULT; /* but... driver-specific */
conn->attr_odbc_cursors = SQL_CUR_DEFAULT;
conn->attr_packet_size = 1024; /* ??? */
conn->attr_quiet_mode = NULL; /* NOT implemented */
conn->attr_trace = SQL_OPT_TRACE_DEFAULT;
conn->attr_tracefile = UT_MAKE_STRING (SQL_OPT_TRACE_FILE_DEFAULT, -1);
conn->attr_translate_lib = NULL;
conn->attr_translate_option = SQL_NULL_DATA;
//conn->attr_txn_isolation = SQL_TXN_SERIALIZABLE;
conn->attr_txn_isolation = SQL_TXN_READ_COMMITTED;
conn->attr_max_rows = 0;
conn->attr_query_timeout = 0;
conn->old_txn_isolation = SQL_TXN_READ_COMMITTED;
conn->fetch_size = 0;
conn->env = env;
conn->next = env->conn;
env->conn = conn;
conn->attr_connect.altHosts = NULL;
conn->attr_connect.rcTime = NULL;
conn->attr_connect.loadBalance = NULL;
conn->attr_connect.query_timeout = NULL;
conn->attr_connect.disconnect_on_query_timeout = NULL;
conn->attr_connect.logFile = NULL;
conn->attr_connect.logBaseDir = NULL;
conn->attr_connect.logSlowQueries = NULL;
conn->attr_connect.slowQueryThresholdMillis = NULL;
conn->attr_connect.logTraceApi = NULL;
conn->attr_connect.logTraceNetwork = NULL;
*connptr = conn;
return ODBC_SUCCESS;
}
/************************************************************************
* name: odbc_free_connection
* arguments:
* ODBC_CONNECTION *con
* returns/side-effects:
* SQLRETCODE
* description:
* NOTE:
* statement handle과 explicitly allocated desc handle은
* SQLDisconnect(odbc_disconnect)시에 free된다.
************************************************************************/
PUBLIC RETCODE
odbc_free_connection (ODBC_CONNECTION * conn)
{
ODBC_CONNECTION *c, *prev;
if (conn->env != NULL)
{
for (c = conn->env->conn, prev = NULL;
c != NULL && c != conn; c = c->next)
prev = c;
if (c == conn)
{
if (prev != NULL)
prev->next = conn->next;
else
conn->env->conn = conn->next;
}
}
odbc_free_diag (conn->diag, FREE_ALL);
NC_FREE (conn->data_source);
NC_FREE (conn->db_name);
NC_FREE (conn->server);
NC_FREE (conn->user);
NC_FREE (conn->password);
NC_FREE (conn->attr_tracefile);
NC_FREE (conn->attr_current_catalog);
NC_FREE (conn->attr_translate_lib);
UT_FREE (conn);
return ODBC_SUCCESS;
}
/************************************************************************
* name: odbc_set_connect_attr
* arguments:
* ODBC_CONNECTION *con
* long attribute
* void* valueptr - generic value pointer
* long stringlength
* returns/side-effects:
* description:
* NOTE:
* attribute가 SQL_ATTR_ACCESS_MODE일 경우,
* 내부적으로 isolation level이 TRAN_COMMIT_CLASS_COMMIT_INSTANCE로
* 설정된다. 이 때 기존의 isolation level을 사용하기 위해서
* (ODBC_CONNECTION).old_txn_isolation이 사용된다.
************************************************************************/
PUBLIC RETCODE
odbc_set_connect_attr (ODBC_CONNECTION * conn,
long attribute, void *valueptr, long stringlength)
{
switch (attribute)
{
case SQL_ATTR_ACCESS_MODE:
switch ((unsigned long) valueptr)
{
case SQL_MODE_READ_WRITE:
conn->attr_access_mode = (unsigned long) valueptr;
conn->attr_txn_isolation = conn->old_txn_isolation;
if (set_isolation_level (conn) < 0)
{
goto error;
}
break;
case SQL_MODE_READ_ONLY:
conn->attr_access_mode = (unsigned long) valueptr;
conn->old_txn_isolation = conn->attr_txn_isolation;
conn->attr_txn_isolation = SQL_TXN_READ_COMMITTED;
if (set_isolation_level (conn) < 0)
{
goto error;
}
break;
default:
/* HY024 - invalid value */
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
break;
}
break;
case SQL_ATTR_ASYNC_ENABLE:
switch ((unsigned long) valueptr)
{
case SQL_ASYNC_ENABLE_OFF:
case SQL_ASYNC_ENABLE_ON:
conn->attr_async_enable = (unsigned long) valueptr;
break;
default:
/* HY024 - invalid value */
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
break;
}
break;
case SQL_ATTR_AUTO_IPD:
/* (DM) HY092 - read-only value */
odbc_set_diag (conn->diag, "HY092", 0, NULL);
goto error;
break;
case SQL_ATTR_AUTOCOMMIT:
switch ((unsigned long) valueptr)
{
case SQL_AUTOCOMMIT_OFF:
case SQL_AUTOCOMMIT_ON:
conn->attr_autocommit = (unsigned long) valueptr;
break;
default:
/* HY024 - invalid value */
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
break;
}
break;
case SQL_ATTR_CONNECTION_DEAD:
// 아무일도 일어나지 않음. connection 상황은 connection handle의
// connhd로 부터 알아낼 수 있음.
break;
case SQL_ATTR_CONNECTION_TIMEOUT:
if ((unsigned long) valueptr < 0)
{
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
}
conn->attr_connection_timeout = (unsigned long) valueptr;
break;
case SQL_ATTR_CURRENT_CATALOG:
NA_FREE (conn->attr_current_catalog);
conn->attr_current_catalog = UT_MAKE_STRING (valueptr, stringlength);
break;
case SQL_ATTR_LOGIN_TIMEOUT:
if ((unsigned long) valueptr < 0)
{
/* HY024 - invalid value */
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
}
conn->attr_login_timeout = (unsigned long) valueptr;
break;
case SQL_ATTR_METADATA_ID:
switch ((unsigned long) valueptr)
{
case SQL_TRUE:
case SQL_FALSE:
conn->attr_metadata_id = (unsigned long) valueptr;
break;
default:
/* HY024 - invalid value */
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
break;
}
break;
case SQL_ATTR_ODBC_CURSORS:
switch ((unsigned long) valueptr)
{
case SQL_CUR_USE_IF_NEEDED:
case SQL_CUR_USE_ODBC:
case SQL_CUR_USE_DRIVER:
conn->attr_odbc_cursors = (unsigned long) valueptr;
break;
default:
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
break;
}
break;
case SQL_ATTR_PACKET_SIZE:
if ((unsigned long) valueptr < 0)
{
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
}
conn->attr_packet_size = (unsigned long) valueptr;
break;
case SQL_ATTR_QUIET_MODE:
conn->attr_quiet_mode = valueptr;
break;
case SQL_ATTR_TRACE:
switch ((unsigned long) valueptr)
{
case SQL_OPT_TRACE_OFF:
case SQL_OPT_TRACE_ON:
conn->attr_trace = (unsigned long) valueptr;
break;
default:
/* HY024 - invalid value */
odbc_set_diag (conn->diag, "HY024", 0, NULL);
goto error;
break;
}
break;
case SQL_ATTR_TRACEFILE:
NC_FREE (conn->attr_tracefile);
conn->attr_tracefile = UT_MAKE_STRING (valueptr, stringlength);
break;
case SQL_ATTR_TRANSLATE_LIB:
/* HYC00 */
/*Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
/*
NC_FREE (conn->attr_translate_lib);
conn->attr_translate_lib = UT_MAKE_STRING (valueptr, stringlength);
break;
*/
case SQL_ATTR_TRANSLATE_OPTION:
/* HYC00 */
/*Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
break;
case SQL_ATTR_TXN_ISOLATION:
conn->attr_txn_isolation = (unsigned long) valueptr;
if (set_isolation_level (conn) < 0)
{
goto error;
}
break;
// stmt attributes
case SQL_ATTR_MAX_ROWS:
conn->attr_max_rows = (unsigned long) valueptr;
break;
case SQL_ATTR_QUERY_TIMEOUT:
conn->attr_query_timeout = (unsigned long) valueptr;
break;
default:
/* (DM) HY092 - */
odbc_set_diag (conn->diag, "HY092", 0, NULL);
goto error;
break;
}
return ODBC_SUCCESS;
error:
return ODBC_ERROR;
}
/************************************************************************
* name: odbc_get_connect_attr
* arguments:
* returns/side-effects:
* description:
* NOTE:
************************************************************************/
PUBLIC RETCODE
odbc_get_connect_attr (ODBC_CONNECTION * conn,
SQLINTEGER attribute,
SQLPOINTER value_ptr,
SQLINTEGER buffer_length,
SQLINTEGER * string_length_ptr)
{
RETCODE rc = ODBC_SUCCESS;
SQLLEN tmp_length;
switch (attribute)
{
case SQL_ATTR_ACCESS_MODE:
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_access_mode;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
case SQL_ATTR_ASYNC_ENABLE:
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_async_enable;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
case SQL_ATTR_AUTO_IPD:
/* HYC00 */
/* Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
#if 0
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_auto_ipd;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
#endif
case SQL_ATTR_AUTOCOMMIT:
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_autocommit;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
case SQL_ATTR_CONNECTION_DEAD:
if (value_ptr != NULL)
{
if (conn->connhd > 0)
{
*((unsigned long *) value_ptr) = SQL_CD_FALSE;
}
else
{
*((unsigned long *) value_ptr) = SQL_CD_TRUE;
}
}
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
case SQL_ATTR_CONNECTION_TIMEOUT:
/* HYC00 */
/* Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
#if 0
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_connection_timeout;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
#endif
case SQL_ATTR_CURRENT_CATALOG:
/* CHECK : test */
rc =
str_value_assign (conn->db_name, value_ptr, buffer_length,
&tmp_length);
if(string_length_ptr != NULL)
{
*string_length_ptr = (SQLINTEGER) tmp_length;
}
if (rc == ODBC_SUCCESS_WITH_INFO)
{
odbc_set_diag (conn->diag, "01004", 0, NULL);
}
break;
/* HYC00 */
/* Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
#if 0
rc =
str_value_assign (conn->attr_current_catalog, value_ptr,
buffer_length, &tmp_length);
*string_length_ptr = (SQLINTEGER) tmp_length;
if (rc == ODBC_SUCCESS_WITH_INFO)
{
odbc_set_diag (conn->diag, "01004", 0, NULL);
}
break;
#endif
case SQL_ATTR_LOGIN_TIMEOUT:
/* HYC00 */
/* Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
/*
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_login_timeout;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
*/
break;
case SQL_ATTR_METADATA_ID:
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_metadata_id;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
case SQL_ATTR_ODBC_CURSORS:
/* HYC00 */
/* Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
#if 0
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_odbc_cursors;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
#endif
case SQL_ATTR_PACKET_SIZE:
/* HYC00 */
/* Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
#if 0
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_packet_size;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
#endif
case SQL_ATTR_QUIET_MODE:
if (value_ptr != NULL)
*((void **) value_ptr) = conn->attr_quiet_mode;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (void *);
break;
case SQL_ATTR_TRACE:
if (value_ptr != NULL)
*((unsigned long *) value_ptr) = conn->attr_trace;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
case SQL_ATTR_TRACEFILE:
rc =
str_value_assign (conn->attr_tracefile, value_ptr, buffer_length,
&tmp_length);
if (string_length_ptr != NULL)
*string_length_ptr = (SQLINTEGER) tmp_length;
if (rc == ODBC_SUCCESS_WITH_INFO)
{
odbc_set_diag (conn->diag, "01004", 0, NULL);
}
break;
case SQL_ATTR_TRANSLATE_LIB:
/* HYC00 */
/* Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
#if 0
rc =
str_value_assign (conn->attr_translate_lib, value_ptr, buffer_length,
&tmp_length);
*string_length_ptr = (SQLINTEGER) tmp_length;
if (rc == ODBC_SUCCESS_WITH_INFO)
{
odbc_set_diag (conn->diag, "01004", 0, NULL);
}
break;
#endif
case SQL_ATTR_TRANSLATE_OPTION:
/* HYC00 */
/* Yet not implemented */
odbc_set_diag (conn->diag, "HYC00", 0, NULL);
goto error;
case SQL_ATTR_TXN_ISOLATION:
if (value_ptr != NULL)
*(unsigned long *) value_ptr = conn->attr_txn_isolation;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
// stmt attributes
case SQL_ATTR_MAX_ROWS:
if (value_ptr != NULL)
*(unsigned long *) value_ptr = conn->attr_max_rows;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
case SQL_ATTR_QUERY_TIMEOUT:
if (value_ptr != NULL)
*(unsigned long *) value_ptr = conn->attr_query_timeout;
if (string_length_ptr != NULL)
*string_length_ptr = sizeof (unsigned long);
break;
default:
/* (DM) HY092 - */
odbc_set_diag (conn->diag, "HY092", 0, NULL);
goto error;
}
return rc;
error:
return ODBC_ERROR;
}
/************************************************************************
* name: odbc_connect_new
* arguments:
* returns/side-effects:
* description:
* NOTE:
* CHECK : error check
************************************************************************/
PUBLIC RETCODE
odbc_connect_new (ODBC_CONNECTION * conn,
const char *data_source,
const char *db_name,
const char *user,
const char *password,
const char *server,
int port,
int fetch_size,
const char *charset,
const char *autocommit,
const char *omit_schema,
const char* conn_str)
{
int connhd;
RETCODE rc;
int cci_rc;
T_CCI_ERROR cci_err_buf;
char *pt;
char connect_url[BUF_SIZE*4] = {0};
char connect_url_attr[BUF_SIZE*4] = {0};
NA_FREE (conn->data_source);
NA_FREE (conn->db_name);
NA_FREE (conn->user);
NA_FREE (conn->password);
NA_FREE (conn->server);
NA_FREE (conn->charset);
strncpy (connect_url, "cci:CUBRID:", sizeof(connect_url));
pt = data_source == NULL ? "" : data_source;
conn->data_source = UT_MAKE_STRING (pt, -1);
pt = server == NULL ? "" : server;
conn->server = UT_MAKE_STRING (pt, -1);
strcat (connect_url, conn->server);
strcat (connect_url, ":");
itoa (port, connect_url + strlen (connect_url), 10);
strcat (connect_url,":");
pt = db_name == NULL ? "" : db_name;
conn->db_name = UT_MAKE_STRING (pt, -1);
strcat (connect_url, conn->db_name);
strcat (connect_url, ":::");
pt = user == NULL ? "" : user;
conn->user = UT_MAKE_STRING (pt, -1);
pt = password == NULL ? "" : password;
conn->password = UT_MAKE_STRING (pt, -1);
pt = charset == NULL ? "" : charset;
conn->charset = UT_MAKE_STRING (pt, -1);
if (autocommit != NULL && _stricmp (autocommit, "off") == 0)
{
conn->attr_autocommit = SQL_AUTOCOMMIT_OFF;
}
if (port > 0)
{
conn->port = port;
}
if (fetch_size > 0)
{
conn->fetch_size = fetch_size;
}
get_connect_attr (&(conn->attr_connect), conn_str, connect_url_attr);
if (connect_url_attr[0] != '\0')
{
strcat (connect_url, "?");
strcat (connect_url, connect_url_attr);
}
connhd = cci_connect_with_url_ex (
connect_url, conn->user, conn->password, &cci_err_buf);
if (connhd < 0)
{
odbc_set_diag_by_cci (conn->diag, connhd, &cci_err_buf);
goto error;
}
// CCI auto-commit mode has little problem in async mode,
// ODBC has own auto-commit mechanism, we should turn off CCI auto-commit mode
rc = cci_set_autocommit(connhd, CCI_AUTOCOMMIT_FALSE);
ERROR_GOTO (rc, error);
conn->connhd = connhd;
#ifndef CUBRID_ODBC_UNICODE
if (conn->charset[0] != '\0')
{
rc = cci_set_charset(connhd, conn->charset);
ERROR_GOTO (rc, error);
}
#endif
rc = get_db_version (conn);
ERROR_GOTO (rc, error);
if (omit_schema && strlen (conn->db_ver))
{
char *p;
int version = atoi (conn->db_ver) * 100;
p = strchr (conn->db_ver, '.');
if (p)
{
version += atoi (p+1);
}
if (version >= 1102 && stricmp (omit_schema, "yes") == 0)
{
conn->omit_schema = 1;
}
}
// disconnect with cas
if (conn->connhd > 0)
{
cci_rc = cci_end_tran (conn->connhd, CCI_TRAN_ROLLBACK, &cci_err_buf);
if (cci_rc < 0)
{
odbc_set_diag_by_cci (conn->diag, cci_rc, &cci_err_buf);
return ODBC_ERROR;
}
}
/*
rc = set_isolation_level(conn);
ERROR_GOTO(rc, error);
*/
return ODBC_SUCCESS;
error:
// CHECK : error messaging
return ODBC_ERROR;
}
/************************************************************************
* name: odbc_disconnect
* arguments:
* returns/side-effects:
* description:
* Data source(CUBRID의 경우 CAS)와의 연결을 끊고, connection handle
* 에 딸려있는 statement handle, descriptor handle을 free한다.
* NOTE:
************************************************************************/
PUBLIC RETCODE
odbc_disconnect (ODBC_CONNECTION * conn)
{
int cci_rc = 0;
T_CCI_ERROR cci_err_buf;
ODBC_STATEMENT *stmt;
ODBC_STATEMENT *del_stmt;
ODBC_DESC *desc;
ODBC_DESC *del_desc;
if (conn->connhd <= 0)
{
odbc_set_diag (conn->diag, "08003", 0, NULL);
goto error;
}
cci_rc = cci_disconnect (conn->connhd, &cci_err_buf);
if (cci_rc < 0)
goto error;
conn->connhd = -1;
for (stmt = conn->statements; stmt;)
{
del_stmt = stmt;
stmt = stmt->next;
odbc_free_statement (del_stmt);
del_stmt = NULL;
}
for (desc = conn->descriptors; desc;)
{
del_desc = desc;
desc = desc->next;
odbc_free_desc (del_desc);
del_desc = NULL;
}
return ODBC_SUCCESS;
error:
odbc_set_diag_by_cci (conn->diag, cci_rc, &cci_err_buf);
return ODBC_ERROR;
}
/************************************************************************
* name: odbc_auto_commit
* arguments:
* returns/side-effects:
* description:
* auto commit mode가 ON이면 end tran을 실행한다.
* NOTE:
************************************************************************/
PUBLIC RETCODE
odbc_auto_commit (ODBC_CONNECTION * conn)
{
int cci_rc;
T_CCI_ERROR cci_err_buf;
if (conn->attr_autocommit == SQL_AUTOCOMMIT_ON)
{
if (conn->connhd > 0)
{
cci_rc = cci_end_tran (conn->connhd, CCI_TRAN_COMMIT, &cci_err_buf);
if (cci_rc < 0)
{
odbc_set_diag_by_cci (conn->diag, cci_rc, &cci_err_buf);
return ODBC_ERROR;
}
}
}
return ODBC_SUCCESS;
}
/************************************************************************
* name: odbc_native_sql
* arguments:
* returns/side-effects:
* description:
* input stmt text를 return 해준다. ODBC SQL to CUBRID SQL의 처리과정이 없다.