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_mysql.c
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/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version. Alternatively, you may use the original license
reproduced below.
Copyright 1999 by Comstar.net, Inc., Atlanta, GA, US.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of Comstar.net, Inc.
or COMSTAR not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior permission.
COMSTAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
EVENT SHALL COMSTAR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
*/
#include "pymemcompat.h"
#include "structmember.h"
#if defined(MS_WINDOWS)
#include <winsock2.h>
#include <windows.h>
#endif
#include "my_config.h"
#include "mysql.h"
#include "mysqld_error.h"
#include "errmsg.h"
# define MyTuple_Resize(t,n,d) _PyTuple_Resize(t, n)
# define MyMember(a,b,c,d,e) {a,b,c,d,e}
# define MyMemberlist(x) struct PyMemberDef x
# define MyAlloc(s,t) (s *) t.tp_alloc(&t,0)
# define MyFree(ob) ob->ob_base.ob_type->tp_free((PyObject *)ob)
static PyObject *_mysql_MySQLError;
static PyObject *_mysql_Warning;
static PyObject *_mysql_Error;
static PyObject *_mysql_DatabaseError;
static PyObject *_mysql_InterfaceError;
static PyObject *_mysql_DataError;
static PyObject *_mysql_OperationalError;
static PyObject *_mysql_IntegrityError;
static PyObject *_mysql_InternalError;
static PyObject *_mysql_ProgrammingError;
static PyObject *_mysql_NotSupportedError;
typedef struct {
PyObject_HEAD
MYSQL connection;
int open;
PyObject *converter;
} _mysql_ConnectionObject;
#define check_connection(c) if (!(c->open)) return _mysql_Exception(c)
#define result_connection(r) ((_mysql_ConnectionObject *)r->conn)
#define check_result_connection(r) check_connection(result_connection(r))
extern PyTypeObject _mysql_ConnectionObject_Type;
typedef struct {
PyObject_HEAD
_mysql_ConnectionObject *conn;
MYSQL_RES *result;
int nfields;
int use;
PyObject *converter;
} _mysql_ResultObject;
extern PyTypeObject _mysql_ResultObject_Type;
static int _mysql_server_init_done = 0;
#if MYSQL_VERSION_ID >= 40000
#define check_server_init(x) if (!_mysql_server_init_done) { if (mysql_server_init(0, NULL, NULL)) { _mysql_Exception(NULL); return x; } else { _mysql_server_init_done = 1;} }
#else
#define check_server_init(x) if (!_mysql_server_init_done) _mysql_server_init_done = 1
#endif
PyObject * _mysql_Exception(_mysql_ConnectionObject *c)
{
PyObject *t, *e, *code, *message;
int merr;
if (!(t = PyTuple_New(2))) return NULL;
if (!_mysql_server_init_done) {
e = _mysql_InternalError;
PyTuple_SET_ITEM(t, 0, PyLong_FromLong(-1L));
PyTuple_SET_ITEM(t, 1, PyUnicode_FromString("server not initialized"));
PyErr_SetObject(e, t);
Py_DECREF(t);
return NULL;
}
merr = mysql_errno(&(c->connection));
if (!merr)
e = _mysql_InterfaceError;
else if (merr > CR_MAX_ERROR) {
PyTuple_SET_ITEM(t, 0, PyLong_FromLong(-1L));
PyTuple_SET_ITEM(t, 1, PyUnicode_FromString("error totally whack"));
PyErr_SetObject(_mysql_InterfaceError, t);
Py_DECREF(t);
return NULL;
}
else switch (merr) {
case CR_COMMANDS_OUT_OF_SYNC:
case ER_DB_CREATE_EXISTS:
case ER_SYNTAX_ERROR:
case ER_PARSE_ERROR:
case ER_NO_SUCH_TABLE:
case ER_WRONG_DB_NAME:
case ER_WRONG_TABLE_NAME:
case ER_FIELD_SPECIFIED_TWICE:
case ER_INVALID_GROUP_FUNC_USE:
case ER_UNSUPPORTED_EXTENSION:
case ER_TABLE_MUST_HAVE_COLUMNS:
#ifdef ER_CANT_DO_THIS_DURING_AN_TRANSACTION
case ER_CANT_DO_THIS_DURING_AN_TRANSACTION:
#endif
e = _mysql_ProgrammingError;
break;
#ifdef WARN_DATA_TRUNCATED
case WARN_DATA_TRUNCATED:
#ifdef WARN_NULL_TO_NOTNULL
case WARN_NULL_TO_NOTNULL:
#endif
#ifdef ER_WARN_DATA_OUT_OF_RANGE
case ER_WARN_DATA_OUT_OF_RANGE:
#endif
#ifdef ER_NO_DEFAULT
case ER_NO_DEFAULT:
#endif
#ifdef ER_PRIMARY_CANT_HAVE_NULL
case ER_PRIMARY_CANT_HAVE_NULL:
#endif
#ifdef ER_DATA_TOO_LONG
case ER_DATA_TOO_LONG:
#endif
#ifdef ER_DATETIME_FUNCTION_OVERFLOW
case ER_DATETIME_FUNCTION_OVERFLOW:
#endif
e = _mysql_DataError;
break;
#endif
case ER_DUP_ENTRY:
#ifdef ER_DUP_UNIQUE
case ER_DUP_UNIQUE:
#endif
#ifdef ER_NO_REFERENCED_ROW
case ER_NO_REFERENCED_ROW:
#endif
#ifdef ER_NO_REFERENCED_ROW_2
case ER_NO_REFERENCED_ROW_2:
#endif
#ifdef ER_ROW_IS_REFERENCED
case ER_ROW_IS_REFERENCED:
#endif
#ifdef ER_ROW_IS_REFERENCED_2
case ER_ROW_IS_REFERENCED_2:
#endif
#ifdef ER_CANNOT_ADD_FOREIGN
case ER_CANNOT_ADD_FOREIGN:
#endif
e = _mysql_IntegrityError;
break;
#ifdef ER_WARNING_NOT_COMPLETE_ROLLBACK
case ER_WARNING_NOT_COMPLETE_ROLLBACK:
#endif
#ifdef ER_NOT_SUPPORTED_YET
case ER_NOT_SUPPORTED_YET:
#endif
#ifdef ER_FEATURE_DISABLED
case ER_FEATURE_DISABLED:
#endif
#ifdef ER_UNKNOWN_STORAGE_ENGINE
case ER_UNKNOWN_STORAGE_ENGINE:
#endif
e = _mysql_NotSupportedError;
break;
default:
if (merr < 1000)
e = _mysql_InternalError;
else
e = _mysql_OperationalError;
break;
}
code = PyLong_FromLong((long)merr);
message = PyUnicode_FromString(mysql_error(&(c->connection)));
PyTuple_SET_ITEM(t, 0, code );
PyTuple_SET_ITEM(t, 1, message );
PyObject_SetAttrString(e, "code", code );
PyObject_SetAttrString(e, "message", message );
PyErr_SetObject(e, t);
Py_DECREF(t);
return NULL;
}
static char _mysql_server_init__doc__[] =
"Initialize embedded server. If this client is not linked against\n\
the embedded server library, this function does nothing.\n\
\n\
args -- sequence of command-line arguments\n\
groups -- sequence of groups to use in defaults files\n\
";
static PyObject *_mysql_server_init(
PyObject *self,
PyObject *args,
PyObject *kwargs) {
static char *kwlist[] = {"args", "groups", NULL};
char **cmd_args_c=NULL, **groups_c=NULL, *s;
int cmd_argc=0, i, groupc;
PyObject *cmd_args=NULL, *groups=NULL, *ret=NULL, *item;
if (_mysql_server_init_done) {
PyErr_SetString(_mysql_ProgrammingError,
"already initialized");
return NULL;
}
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OO", kwlist,
&cmd_args, &groups))
return NULL;
#if MYSQL_VERSION_ID >= 40000
if (cmd_args) {
if (!PySequence_Check(cmd_args)) {
PyErr_SetString(PyExc_TypeError,
"args must be a sequence");
goto finish;
}
cmd_argc = PySequence_Size(cmd_args);
if (cmd_argc == -1) {
PyErr_SetString(PyExc_TypeError,
"args could not be sized");
goto finish;
}
cmd_args_c = (char **) PyMem_Malloc(cmd_argc*sizeof(char *));
for (i=0; i< cmd_argc; i++) {
item = PySequence_GetItem(cmd_args, i);
s = PyBytes_AsString(item);
Py_DECREF(item);
if (!s) {
PyErr_SetString(PyExc_TypeError,
"args must contain strings");
goto finish;
}
cmd_args_c[i] = s;
}
}
if (groups) {
if (!PySequence_Check(groups)) {
PyErr_SetString(PyExc_TypeError,
"groups must be a sequence");
goto finish;
}
groupc = PySequence_Size(groups);
if (groupc == -1) {
PyErr_SetString(PyExc_TypeError,
"groups could not be sized");
goto finish;
}
groups_c = (char **) PyMem_Malloc((1+groupc)*sizeof(char *));
for (i=0; i< groupc; i++) {
item = PySequence_GetItem(groups, i);
s = PyBytes_AsString(item);
Py_DECREF(item);
if (!s) {
PyErr_SetString(PyExc_TypeError,
"groups must contain strings");
goto finish;
}
groups_c[i] = s;
}
groups_c[groupc] = (char *)NULL;
}
/* even though this may block, don't give up the interpreter lock
so that the server can't be initialized multiple times. */
if (mysql_server_init(cmd_argc, cmd_args_c, groups_c)) {
_mysql_Exception(NULL);
goto finish;
}
#endif
ret = Py_None;
Py_INCREF(Py_None);
_mysql_server_init_done = 1;
finish:
PyMem_Free(groups_c);
PyMem_Free(cmd_args_c);
return ret;
}
static char _mysql_server_end__doc__[] =
"Shut down embedded server. If not using an embedded server, this\n\
does nothing.";
static PyObject *_mysql_server_end(
PyObject *self,
PyObject *args) {
if (_mysql_server_init_done) {
#if MYSQL_VERSION_ID >= 40000
mysql_server_end();
#endif
_mysql_server_init_done = 0;
Py_INCREF(Py_None);
return Py_None;
}
return _mysql_Exception(NULL);
}
#if MYSQL_VERSION_ID >= 32314
static char _mysql_thread_safe__doc__[] =
"Indicates whether the client is compiled as thread-safe.";
static PyObject *_mysql_thread_safe(
PyObject *self,
PyObject *args) {
PyObject *flag;
if (!PyArg_ParseTuple(args, "")) return NULL;
check_server_init(NULL);
if (!(flag=PyLong_FromLong((long)mysql_thread_safe()))) return NULL;
return flag;
}
#endif
static char _mysql_ResultObject__doc__[] =
"result(connection, use=0, converter={}) -- Result set from a query.\n\
\n\
Creating instances of this class directly is an excellent way to\n\
shoot yourself in the foot. If using _mysql.connection directly,\n\
use connection.store_result() or connection.use_result() instead.\n\
If using MySQLdb.Connection, this is done by the cursor class.\n\
Just forget you ever saw this. Forget... FOR-GET...";
static int
_mysql_ResultObject_Initialize(
_mysql_ResultObject *self,
PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = {"connection", "use", "converter", NULL};
MYSQL_RES *result;
_mysql_ConnectionObject *conn=NULL;
int use=0;
PyObject *conv=NULL;
int n, i;
MYSQL_FIELD *fields;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|iO", kwlist,
&conn, &use, &conv))
return -1;
if (!conv) conv = PyDict_New();
if (!conv) return -1;
self->conn = conn;
Py_INCREF(conn);
self->use = use;
Py_BEGIN_ALLOW_THREADS ;
if (use)
result = mysql_use_result(&(conn->connection));
else
result = mysql_store_result(&(conn->connection));
self->result = result;
Py_END_ALLOW_THREADS ;
if (!result) {
self->converter = PyTuple_New(0);
return 0;
}
n = mysql_num_fields(result);
self->nfields = n;
if (!(self->converter = PyTuple_New(n))) return -1;
fields = mysql_fetch_fields(result);
for (i=0; i<n; i++) {
PyObject *tmp, *fun;
tmp = PyLong_FromLong((long) fields[i].type);
if (!tmp) return -1;
fun = PyObject_GetItem(conv, tmp);
Py_DECREF(tmp);
if (!fun) {
PyErr_Clear();
fun = Py_None;
Py_INCREF(Py_None);
}
if (PySequence_Check(fun)) {
int j, n2=PySequence_Size(fun);
PyObject *fun2=NULL;
for (j=0; j<n2; j++) {
PyObject *t = PySequence_GetItem(fun, j);
if (!t) continue;
if (!PyTuple_Check(t)) goto cleanup;
if (PyTuple_GET_SIZE(t) == 2) {
long mask;
PyObject *pmask=NULL;
pmask = PyTuple_GET_ITEM(t, 0);
fun2 = PyTuple_GET_ITEM(t, 1);
if (PyNumber_Check(pmask)) {
mask = PyLong_AS_LONG(pmask);
if (mask & fields[i].flags) {
Py_DECREF(t);
break;
}
else {
goto cleanup;
}
} else {
Py_DECREF(t);
break;
}
}
cleanup:
Py_DECREF(t);
}
if (!fun2) fun2 = Py_None;
Py_INCREF(fun2);
Py_DECREF(fun);
fun = fun2;
}
PyTuple_SET_ITEM(self->converter, i, fun);
}
return 0;
}
static int _mysql_ResultObject_traverse(
_mysql_ResultObject *self,
visitproc visit,
void *arg)
{
int r;
if (self->converter) {
if (!(r = visit(self->converter, arg))) return r;
}
if (self->conn)
return visit((PyObject *)self->conn, arg);
return 0;
}
static int _mysql_ResultObject_clear(
_mysql_ResultObject *self)
{
Py_XDECREF(self->converter);
self->converter = NULL;
Py_XDECREF(self->conn);
self->conn = NULL;
return 0;
}
static int
_mysql_ConnectionObject_Initialize(
_mysql_ConnectionObject *self,
PyObject *args,
PyObject *kwargs)
{
MYSQL *conn = NULL;
PyObject *conv = NULL;
PyObject *ssl = NULL;
#if HAVE_OPENSSL
char *key = NULL, *cert = NULL, *ca = NULL,
*capath = NULL, *cipher = NULL;
#endif
char *host = NULL, *user = NULL, *passwd = NULL,
*db = NULL, *unix_socket = NULL;
unsigned int port = 0;
unsigned int client_flag = 0;
static char *kwlist[] = { "host", "user", "passwd", "db", "port",
"unix_socket", "conv",
"connect_timeout", "compress",
"named_pipe", "init_command",
"read_default_file", "read_default_group",
"client_flag", "ssl",
"local_infile",
NULL } ;
int connect_timeout = 0;
int compress = -1, named_pipe = -1, local_infile = -1;
char *init_command=NULL,
*read_default_file=NULL,
*read_default_group=NULL;
self->converter = NULL;
self->open = 0;
check_server_init(-1);
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ssssisOiiisssiOi:connect",
kwlist,
&host, &user, &passwd, &db,
&port, &unix_socket, &conv,
&connect_timeout,
&compress, &named_pipe,
&init_command, &read_default_file,
&read_default_group,
&client_flag, &ssl,
&local_infile /* DO NOT PATCH FOR RECONNECT, IDIOTS
IF YOU DO THIS, I WILL NOT SUPPORT YOUR PACKAGES. */
))
return -1;
#define _stringsuck(d,t,s) {t=PyMapping_GetItemString(s,#d);\
if(t){d=PyBytes_AsString(t);Py_DECREF(t);}\
PyErr_Clear();}
if (ssl) {
#if HAVE_OPENSSL
PyObject *value = NULL;
_stringsuck(ca, value, ssl);
_stringsuck(capath, value, ssl);
_stringsuck(cert, value, ssl);
_stringsuck(key, value, ssl);
_stringsuck(cipher, value, ssl);
#else
PyErr_SetString(_mysql_NotSupportedError,
"client library does not have SSL support");
return -1;
#endif
}
Py_BEGIN_ALLOW_THREADS ;
conn = mysql_init(&(self->connection));
if (connect_timeout) {
unsigned int timeout = connect_timeout;
mysql_options(&(self->connection), MYSQL_OPT_CONNECT_TIMEOUT,
(char *)&timeout);
}
if (compress != -1) {
mysql_options(&(self->connection), MYSQL_OPT_COMPRESS, 0);
client_flag |= CLIENT_COMPRESS;
}
if (named_pipe != -1)
mysql_options(&(self->connection), MYSQL_OPT_NAMED_PIPE, 0);
if (init_command != NULL)
mysql_options(&(self->connection), MYSQL_INIT_COMMAND, init_command);
if (read_default_file != NULL)
mysql_options(&(self->connection), MYSQL_READ_DEFAULT_FILE, read_default_file);
if (read_default_group != NULL)
mysql_options(&(self->connection), MYSQL_READ_DEFAULT_GROUP, read_default_group);
if (local_infile != -1)
mysql_options(&(self->connection), MYSQL_OPT_LOCAL_INFILE, (char *) &local_infile);
#if HAVE_OPENSSL
if (ssl)
mysql_ssl_set(&(self->connection),
key, cert, ca, capath, cipher);
#endif
conn = mysql_real_connect(&(self->connection), host, user, passwd, db,
port, unix_socket, client_flag);
Py_END_ALLOW_THREADS ;
if (!conn) {
_mysql_Exception(self);
return -1;
}
/* Internal references to python-land objects */
if (!conv)
conv = PyDict_New();
else
Py_INCREF(conv);
if (!conv)
return -1;
self->converter = conv;
/*
PyType_GenericAlloc() automatically sets up GC allocation and
tracking for GC objects, at least in 2.2.1, so it does not need to
be done here. tp_dealloc still needs to call PyObject_GC_UnTrack(),
however.
*/
self->open = 1;
return 0;
}
static char _mysql_connect__doc__[] =
"Returns a MYSQL connection object. Exclusive use of\n\
keyword parameters strongly recommended. Consult the\n\
MySQL C API documentation for more details.\n\
\n\
host\n\
string, host to connect\n\
\n\
user\n\
string, user to connect as\n\
\n\
passwd\n\
string, password to use\n\
\n\
db\n\
string, database to use\n\
\n\
port\n\
integer, TCP/IP port to connect to\n\
\n\
unix_socket\n\
string, location of unix_socket (UNIX-ish only)\n\
\n\
conv\n\
mapping, maps MySQL FIELD_TYPE.* to Python functions which\n\
convert a string to the appropriate Python type\n\
\n\
connect_timeout\n\
number of seconds to wait before the connection\n\
attempt fails.\n\
\n\
compress\n\
if set, gzip compression is enabled\n\
\n\
named_pipe\n\
if set, connect to server via named pipe (Windows only)\n\
\n\
init_command\n\
command which is run once the connection is created\n\
\n\
read_default_file\n\
see the MySQL documentation for mysql_options()\n\
\n\
read_default_group\n\
see the MySQL documentation for mysql_options()\n\
\n\
client_flag\n\
client flags from MySQLdb.constants.CLIENT\n\
\n\
load_infile\n\
int, non-zero enables LOAD LOCAL INFILE, zero disables\n\
\n\
";
static PyObject *
_mysql_connect(
PyObject *self,
PyObject *args,
PyObject *kwargs)
{
_mysql_ConnectionObject *c=NULL;
c = MyAlloc(_mysql_ConnectionObject, _mysql_ConnectionObject_Type);
if (c == NULL) return NULL;
if (_mysql_ConnectionObject_Initialize(c, args, kwargs)) {
Py_DECREF(c);
c = NULL;
}
return (PyObject *) c;
}
static int _mysql_ConnectionObject_traverse(
_mysql_ConnectionObject *self,
visitproc visit,
void *arg)
{
if (self->converter)
return visit(self->converter, arg);
return 0;
}
static int _mysql_ConnectionObject_clear(
_mysql_ConnectionObject *self)
{
Py_XDECREF(self->converter);
self->converter = NULL;
return 0;
}
static char _mysql_ConnectionObject_close__doc__[] =
"Close the connection. No further activity possible.";
static PyObject *
_mysql_ConnectionObject_close(
_mysql_ConnectionObject *self,
PyObject *args)
{
if (args) {
if (!PyArg_ParseTuple(args, "")) return NULL;
}
if (self->open) {
Py_BEGIN_ALLOW_THREADS
mysql_close(&(self->connection));
Py_END_ALLOW_THREADS
self->open = 0;
} else {
PyErr_SetString(_mysql_ProgrammingError,
"closing a closed connection");
return NULL;
}
_mysql_ConnectionObject_clear(self);
Py_INCREF(Py_None);
return Py_None;
}
static char _mysql_ConnectionObject_affected_rows__doc__ [] =
"Return number of rows affected by the last query.\n\
Non-standard. Use Cursor.rowcount.\n\
";
static PyObject *
_mysql_ConnectionObject_affected_rows(
_mysql_ConnectionObject *self,
PyObject *args)
{
if (!PyArg_ParseTuple(args, "")) return NULL;
check_connection(self);
return PyLong_FromUnsignedLongLong(mysql_affected_rows(&(self->connection)));
}
static char _mysql_debug__doc__[] =
"Does a DBUG_PUSH with the given string.\n\
mysql_debug() uses the Fred Fish debug library.\n\
To use this function, you must compile the client library to\n\
support debugging.\n\
";
static PyObject *
_mysql_debug(
PyObject *self,
PyObject *args)
{
char *debug;
if (!PyArg_ParseTuple(args, "s", &debug)) return NULL;
mysql_debug(debug);
Py_INCREF(Py_None);
return Py_None;
}
static char _mysql_ConnectionObject_dump_debug_info__doc__[] =
"Instructs the server to write some debug information to the\n\
log. The connected user must have the process privilege for\n\
this to work. Non-standard.\n\
";
static PyObject *
_mysql_ConnectionObject_dump_debug_info(
_mysql_ConnectionObject *self,
PyObject *args)
{
int err;
if (!PyArg_ParseTuple(args, "")) return NULL;
check_connection(self);
Py_BEGIN_ALLOW_THREADS
err = mysql_dump_debug_info(&(self->connection));
Py_END_ALLOW_THREADS
if (err) return _mysql_Exception(self);
Py_INCREF(Py_None);
return Py_None;
}
static char _mysql_ConnectionObject_autocommit__doc__[] =
"Set the autocommit mode. True values enable; False value disable.\n\
";
static PyObject *
_mysql_ConnectionObject_autocommit(
_mysql_ConnectionObject *self,
PyObject *args)
{
int flag, err;
if (!PyArg_ParseTuple(args, "i", &flag)) return NULL;
Py_BEGIN_ALLOW_THREADS
#if MYSQL_VERSION_ID >= 40100
err = mysql_autocommit(&(self->connection), flag);
#else
{
char query[256];
snprintf(query, 256, "SET AUTOCOMMIT=%d", flag);
err = mysql_query(&(self->connection), query);
}
#endif
Py_END_ALLOW_THREADS
if (err) return _mysql_Exception(self);
Py_INCREF(Py_None);
return Py_None;
}
static char _mysql_ConnectionObject_commit__doc__[] =
"Commits the current transaction\n\
";
static PyObject *
_mysql_ConnectionObject_commit(
_mysql_ConnectionObject *self,
PyObject *args)
{
int err;
if (!PyArg_ParseTuple(args, "")) return NULL;
Py_BEGIN_ALLOW_THREADS
#if MYSQL_VERSION_ID >= 40100
err = mysql_commit(&(self->connection));
#else
err = mysql_query(&(self->connection), "COMMIT");
#endif
Py_END_ALLOW_THREADS
if (err) return _mysql_Exception(self);
Py_INCREF(Py_None);
return Py_None;
}
static char _mysql_ConnectionObject_rollback__doc__[] =
"Rolls backs the current transaction\n\
";
static PyObject *
_mysql_ConnectionObject_rollback(
_mysql_ConnectionObject *self,
PyObject *args)
{
int err;
if (!PyArg_ParseTuple(args, "")) return NULL;
Py_BEGIN_ALLOW_THREADS
#if MYSQL_VERSION_ID >= 40100
err = mysql_rollback(&(self->connection));
#else
err = mysql_query(&(self->connection), "ROLLBACK");
#endif
Py_END_ALLOW_THREADS
if (err) return _mysql_Exception(self);
Py_INCREF(Py_None);
return Py_None;
}
static char _mysql_ConnectionObject_next_result__doc__[] =
"If more query results exist, next_result() reads the next query\n\
results and returns the status back to application.\n\
\n\
After calling next_result() the state of the connection is as if\n\
you had called query() for the next query. This means that you can\n\
now call store_result(), warning_count(), affected_rows()\n\
, and so forth. \n\
\n\
Returns 0 if there are more results; -1 if there are no more results\n\
\n\
Non-standard.\n\
";
static PyObject *
_mysql_ConnectionObject_next_result(
_mysql_ConnectionObject *self,
PyObject *args)
{
int err;
if (!PyArg_ParseTuple(args, "")) return NULL;
Py_BEGIN_ALLOW_THREADS
#if MYSQL_VERSION_ID >= 40100
err = mysql_next_result(&(self->connection));
#else
err = -1;
#endif
Py_END_ALLOW_THREADS
if (err > 0) return _mysql_Exception(self);
return PyLong_FromLong(err);
}
#if MYSQL_VERSION_ID >= 40100
static char _mysql_ConnectionObject_set_server_option__doc__[] =
"set_server_option(option) -- Enables or disables an option\n\
for the connection.\n\
\n\
Non-standard.\n\
";
static PyObject *
_mysql_ConnectionObject_set_server_option(
_mysql_ConnectionObject *self,
PyObject *args)
{
int err, flags=0;
if (!PyArg_ParseTuple(args, "i", &flags))
return NULL;
Py_BEGIN_ALLOW_THREADS
err = mysql_set_server_option(&(self->connection), flags);
Py_END_ALLOW_THREADS
if (err) return _mysql_Exception(self);
return PyLong_FromLong(err);
}
static char _mysql_ConnectionObject_sqlstate__doc__[] =
"Returns a string containing the SQLSTATE error code\n\
for the last error. The error code consists of five characters.\n\
'00000' means \"no error.\" The values are specified by ANSI SQL\n\
and ODBC. For a list of possible values, see section 23\n\
Error Handling in MySQL in the MySQL Manual.\n\
\n\
Note that not all MySQL errors are yet mapped to SQLSTATE's.\n\
The value 'HY000' (general error) is used for unmapped errors.\n\
\n\
Non-standard.\n\
";
static PyObject *
_mysql_ConnectionObject_sqlstate(
_mysql_ConnectionObject *self,
PyObject *args)
{
if (!PyArg_ParseTuple(args, "")) return NULL;
return PyUnicode_FromString(mysql_sqlstate(&(self->connection)));
}
static char _mysql_ConnectionObject_warning_count__doc__[] =
"Returns the number of warnings generated during execution\n\
of the previous SQL statement.\n\
\n\
Non-standard.\n\
";
static PyObject *
_mysql_ConnectionObject_warning_count(
_mysql_ConnectionObject *self,
PyObject *args)
{
if (!PyArg_ParseTuple(args, "")) return NULL;
return PyLong_FromLong(mysql_warning_count(&(self->connection)));
}
#endif
static char _mysql_ConnectionObject_errno__doc__[] =
"Returns the error code for the most recently invoked API function\n\
that can succeed or fail. A return value of zero means that no error\n\
occurred.\n\
";
static PyObject *
_mysql_ConnectionObject_errno(
_mysql_ConnectionObject *self,
PyObject *args)
{
if (!PyArg_ParseTuple(args, "")) return NULL;
check_connection(self);
return PyLong_FromLong((long)mysql_errno(&(self->connection)));
}
static char _mysql_ConnectionObject_error__doc__[] =
"Returns the error message for the most recently invoked API function\n\
that can succeed or fail. An empty string ("") is returned if no error\n\
occurred.\n\
";
static PyObject *
_mysql_ConnectionObject_error(
_mysql_ConnectionObject *self,
PyObject *args)
{
if (!PyArg_ParseTuple(args, "")) return NULL;
check_connection(self);
return PyUnicode_FromString(mysql_error(&(self->connection)));
}
static char _mysql_escape_string__doc__[] =
"escape_string(s) -- quote any SQL-interpreted characters in string s.\n\
\n\
Use connection.escape_string(s), if you use it at all.\n\
_mysql.escape_string(s) cannot handle character sets. You are\n\
probably better off using connection.escape(o) instead, since\n\
it will escape entire sequences as well as strings.";
static PyObject *_mysql_ConnectionObject_escape_string( _mysql_ConnectionObject *self, PyObject *args)
{
PyObject *str;
char *in, *out;
int len, size;
if (!PyArg_ParseTuple(args, "s#:escape_string", &in, &size)) return NULL;
out = PyMem_New(char, size*2+1);
if (!out) return PyErr_NoMemory();
#if MYSQL_VERSION_ID < 32321
len = mysql_escape_string(out, in, size);
#else
check_server_init(NULL);
if (self && self->open)
len = mysql_real_escape_string(&(self->connection), out, in, size);
else
len = mysql_escape_string(out, in, size);
#endif
str = PyUnicode_FromString(out);
PyMem_Del(out);
return (str);
}
static PyObject *_mysql_escape_string( PyObject *self, PyObject *args)
{
return _mysql_ConnectionObject_escape_string(NULL, args);
}
static char _mysql_string_literal__doc__[] =
"string_literal(obj) -- converts object obj into a SQL string literal.\n\
This means, any special SQL characters are escaped, and it is enclosed\n\
within single quotes. In other words, it performs:\n\
\n\
\"'%s'\" % escape_string(str(obj))\n\
\n\
Use connection.string_literal(obj), if you use it at all.\n\
_mysql.string_literal(obj) cannot handle character sets.";
static PyObject *_mysql_ConnectionObject_string_literal(_mysql_ConnectionObject *self, PyObject *args)
{
PyObject *str, *s, *s2, *o, *d;
char *in, *out;
int len, size;
if (!PyArg_ParseTuple(args, "O|O:string_literal", &o, &d)) return NULL;
s = PyObject_Str(o);
if (!s) return NULL;
s2 = PyUnicode_AsUTF8String(s);
if (!s2) return NULL;
in = PyBytes_AsString(s2);