static PyObject *
psyco_conn_set_session(connectionObject *self, PyObject *args, PyObject *kwargs)
{
PyObject *isolevel = Py_None;
PyObject *readonly = Py_None;
PyObject *deferrable = Py_None;
PyObject *autocommit = Py_None;
const char *c_isolevel = NULL;
const char *c_readonly = NULL;
const char *c_deferrable = NULL;
int c_autocommit = self->autocommit;
static char *kwlist[] =
{"isolation_level", "readonly", "deferrable", "autocommit", NULL};
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, set_session);
EXC_IF_IN_TRANSACTION(self, set_session);
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOOO", kwlist,
&isolevel, &readonly, &deferrable, &autocommit)) {
return NULL;
}
if (Py_None != isolevel) {
if (!(c_isolevel = _psyco_conn_parse_isolevel(self, isolevel))) {
return NULL;
}
}
if (Py_None != readonly) {
if (!(c_readonly = _psyco_conn_parse_onoff(readonly))) {
return NULL;
}
}
if (Py_None != deferrable) {
if (self->server_version < 90100) {
PyErr_SetString(ProgrammingError,
"the 'deferrable' setting is only available"
" from PostgreSQL 9.1");
return NULL;
}
if (!(c_deferrable = _psyco_conn_parse_onoff(deferrable))) {
return NULL;
}
}
if (Py_None != autocommit) {
c_autocommit = PyObject_IsTrue(autocommit);
if (-1 == c_autocommit) { return NULL; }
}
if (0 > conn_set_session(self,
c_isolevel, c_readonly, c_deferrable, c_autocommit)) {
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
psyco_conn_set_client_encoding(connectionObject *self, PyObject *args)
{
const char *enc = NULL;
char *buffer;
size_t i, j;
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, set_client_encoding);
if (!PyArg_ParseTuple(args, "s", &enc)) return NULL;
/* convert to upper case and remove '-' and '_' from string */
buffer = PyMem_Malloc(strlen(enc)+1);
for (i=j=0 ; i < strlen(enc) ; i++) {
if (enc[i] == '_' || enc[i] == '-')
continue;
else
buffer[j++] = toupper(enc[i]);
}
buffer[j] = '\0';
if (conn_set_client_encoding(self, buffer) == 0) {
PyMem_Free(buffer);
Py_INCREF(Py_None);
return Py_None;
}
else {
PyMem_Free(buffer);
return NULL;
}
}
static PyObject *
psyco_conn_set_isolation_level(connectionObject *self, PyObject *args)
{
int level = 1;
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, set_isolation_level);
if (!PyArg_ParseTuple(args, "i", &level)) return NULL;
if (level < 0 || level > 2) {
PyErr_SetString(PyExc_ValueError,
"isolation level out of bounds (0,3)");
return NULL;
}
if (conn_switch_isolation_level(self, level) < 0) {
PyErr_SetString(OperationalError,
PQerrorMessage(self->pgconn));
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
psyco_conn_tpc_commit(connectionObject *self, PyObject *args)
{
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, tpc_commit);
EXC_IF_TPC_NOT_SUPPORTED(self);
return _psyco_conn_tpc_finish(self, args,
conn_commit, "COMMIT PREPARED");
}
static PyObject *
psyco_conn_tpc_rollback(connectionObject *self, PyObject *args)
{
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, tpc_rollback);
EXC_IF_TPC_NOT_SUPPORTED(self);
return _psyco_conn_tpc_finish(self, args,
conn_rollback, "ROLLBACK PREPARED");
}
static PyObject *
psyco_conn_tpc_recover(connectionObject *self)
{
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, tpc_recover);
EXC_IF_TPC_PREPARED(self, tpc_recover);
EXC_IF_TPC_NOT_SUPPORTED(self);
return conn_tpc_recover(self);
}
BORROWED static PyObject *
_psyco_conn_autocommit_set_checks(connectionObject *self)
{
/* wrapper to use the EXC_IF macros.
* return NULL in case of error, else whatever */
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, autocommit);
EXC_IF_IN_TRANSACTION(self, autocommit);
return Py_None; /* borrowed */
}
static PyObject *
psyco_conn_rollback(connectionObject *self)
{
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, rollback);
EXC_IF_TPC_BEGIN(self, rollback);
if (conn_rollback(self) < 0)
return NULL;
Py_RETURN_NONE;
}
static PyObject *
psyco_conn_commit(connectionObject *self, PyObject *dummy)
{
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, commit);
EXC_IF_TPC_BEGIN(self, commit);
if (conn_commit(self) < 0)
return NULL;
Py_RETURN_NONE;
}
static PyObject *
psyco_conn_rollback(connectionObject *self, PyObject *args)
{
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, rollback);
EXC_IF_TPC_BEGIN(self, rollback);
if (conn_rollback(self) < 0)
return NULL;
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
psyco_conn_rollback(connectionObject *self, PyObject *args)
{
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, rollback);
if (!PyArg_ParseTuple(args, "")) return NULL;
if (conn_rollback(self) < 0)
return NULL;
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
psyco_conn_lobject(connectionObject *self, PyObject *args, PyObject *keywds)
{
Oid oid = InvalidOid, new_oid = InvalidOid;
const char *new_file = NULL;
const char *smode = "";
PyObject *factory = (PyObject *)&lobjectType;
PyObject *obj;
static char *kwlist[] = {"oid", "mode", "new_oid", "new_file",
"lobject_factory", NULL};
if (!PyArg_ParseTupleAndKeywords(args, keywds, "|IzIzO", kwlist,
&oid, &smode, &new_oid, &new_file,
&factory)) {
return NULL;
}
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, lobject);
EXC_IF_GREEN(lobject);
EXC_IF_TPC_PREPARED(self, lobject);
Dprintf("psyco_conn_lobject: new lobject for connection at %p", self);
Dprintf("psyco_conn_lobject: parameters: oid = %u, mode = %s",
oid, smode);
Dprintf("psyco_conn_lobject: parameters: new_oid = %d, new_file = %s",
new_oid, new_file);
if (new_file)
obj = PyObject_CallFunction(factory, "OIsIs",
self, oid, smode, new_oid, new_file);
else
obj = PyObject_CallFunction(factory, "OIsI",
self, oid, smode, new_oid);
if (obj == NULL) return NULL;
if (PyObject_IsInstance(obj, (PyObject *)&lobjectType) == 0) {
PyErr_SetString(PyExc_TypeError,
"lobject factory must be subclass of psycopg2.extensions.lobject");
Py_DECREF(obj);
return NULL;
}
Dprintf("psyco_conn_lobject: new lobject at %p: refcnt = "
FORMAT_CODE_PY_SSIZE_T,
obj, Py_REFCNT(obj));
return obj;
}
static PyObject *
psyco_conn_reset(connectionObject *self)
{
int res;
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, reset);
if (pq_reset(self) < 0)
return NULL;
res = conn_setup(self, self->pgconn);
if (res < 0)
return NULL;
Py_RETURN_NONE;
}
static PyObject *
psyco_conn_set_isolation_level(connectionObject *self, PyObject *args)
{
int level = 1;
PyObject *pyval = NULL;
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, "isolation_level");
EXC_IF_TPC_PREPARED(self, "isolation_level");
if (!PyArg_ParseTuple(args, "O", &pyval)) return NULL;
if (pyval == Py_None) {
level = ISOLATION_LEVEL_DEFAULT;
}
/* parse from one of the level constants */
else if (PyInt_Check(pyval)) {
level = PyInt_AsLong(pyval);
if (level < 0 || level > 4) {
PyErr_SetString(PyExc_ValueError,
"isolation level must be between 0 and 4");
return NULL;
}
}
if (0 > conn_rollback(self)) {
return NULL;
}
if (level == 0) {
if (0 > conn_set_session(self, 1,
self->isolevel, self->readonly, self->deferrable)) {
return NULL;
}
}
else {
if (0 > conn_set_session(self, 0,
level, self->readonly, self->deferrable)) {
return NULL;
}
}
Py_RETURN_NONE;
}
static PyObject *
psyco_conn_set_client_encoding(connectionObject *self, PyObject *args)
{
const char *enc;
PyObject *rv = NULL;
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, set_client_encoding);
EXC_IF_TPC_PREPARED(self, set_client_encoding);
if (!PyArg_ParseTuple(args, "s", &enc)) return NULL;
if (conn_set_client_encoding(self, enc) >= 0) {
Py_INCREF(Py_None);
rv = Py_None;
}
return rv;
}
static PyObject *
psyco_conn_reset(connectionObject *self, PyObject *args)
{
int res;
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, reset);
if (pq_reset(self) < 0)
return NULL;
res = conn_setup(self, self->pgconn);
if (res < 0)
return NULL;
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
psyco_conn_tpc_begin(connectionObject *self, PyObject *args)
{
PyObject *rv = NULL;
xidObject *xid = NULL;
PyObject *oxid;
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, tpc_begin);
EXC_IF_TPC_NOT_SUPPORTED(self);
EXC_IF_IN_TRANSACTION(self, tpc_begin);
if (!PyArg_ParseTuple(args, "O", &oxid)) {
goto exit;
}
if (NULL == (xid = xid_ensure(oxid))) {
goto exit;
}
/* two phase commit and autocommit make no point */
if (self->autocommit) {
PyErr_SetString(ProgrammingError,
"tpc_begin can't be called in autocommit mode");
goto exit;
}
if (conn_tpc_begin(self, xid) < 0) {
goto exit;
}
Py_INCREF(Py_None);
rv = Py_None;
exit:
Py_XDECREF(xid);
return rv;
}
static PyObject *
psyco_conn_tpc_prepare(connectionObject *self)
{
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, tpc_prepare);
EXC_IF_TPC_PREPARED(self, tpc_prepare);
if (NULL == self->tpc_xid) {
PyErr_SetString(ProgrammingError,
"prepare must be called inside a two-phase transaction");
return NULL;
}
if (0 > conn_tpc_command(self, "PREPARE TRANSACTION", self->tpc_xid)) {
return NULL;
}
/* transaction prepared: set the state so that no operation
* can be performed until commit. */
self->status = CONN_STATUS_PREPARED;
Py_RETURN_NONE;
}
static PyObject *
psyco_conn_set_isolation_level(connectionObject *self, PyObject *args)
{
int level = 1;
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, set_isolation_level);
EXC_IF_TPC_PREPARED(self, set_isolation_level);
if (!PyArg_ParseTuple(args, "i", &level)) return NULL;
if (level < 0 || level > 4) {
PyErr_SetString(PyExc_ValueError,
"isolation level must be between 0 and 4");
return NULL;
}
if (conn_switch_isolation_level(self, level) < 0) {
return NULL;
}
Py_RETURN_NONE;
}
static PyObject *
psyco_conn_lobject(connectionObject *self, PyObject *args, PyObject *keywds)
{
Oid oid=InvalidOid, new_oid=InvalidOid;
char *smode = NULL, *new_file = NULL;
int mode=0;
PyObject *obj, *factory = NULL;
static char *kwlist[] = {"oid", "mode", "new_oid", "new_file",
"cursor_factory", NULL};
if (!PyArg_ParseTupleAndKeywords(args, keywds, "|izizO", kwlist,
&oid, &smode, &new_oid, &new_file,
&factory)) {
return NULL;
}
EXC_IF_CONN_CLOSED(self);
EXC_IF_CONN_ASYNC(self, lobject);
EXC_IF_GREEN(lobject);
Dprintf("psyco_conn_lobject: new lobject for connection at %p", self);
Dprintf("psyco_conn_lobject: parameters: oid = %d, mode = %s",
oid, smode);
Dprintf("psyco_conn_lobject: parameters: new_oid = %d, new_file = %s",
new_oid, new_file);
/* build a mode number out of the mode string: right now we only accept
'r', 'w' and 'rw' (but note that 'w' implies 'rw' because PostgreSQL
backend does that. */
if (smode) {
if (strncmp("rw", smode, 2) == 0)
mode = INV_READ+INV_WRITE;
else if (smode[0] == 'r')
mode = INV_READ;
else if (smode[0] == 'w')
mode = INV_WRITE;
else if (smode[0] == 'n')
mode = -1;
else {
PyErr_SetString(PyExc_TypeError,
"mode should be one of 'r', 'w' or 'rw'");
return NULL;
}
}
if (factory == NULL) factory = (PyObject *)&lobjectType;
if (new_file)
obj = PyObject_CallFunction(factory, "Oiiis",
self, oid, mode, new_oid, new_file);
else
obj = PyObject_CallFunction(factory, "Oiii",
self, oid, mode, new_oid);
if (obj == NULL) return NULL;
if (PyObject_IsInstance(obj, (PyObject *)&lobjectType) == 0) {
PyErr_SetString(PyExc_TypeError,
"lobject factory must be subclass of psycopg2._psycopg.lobject");
Py_DECREF(obj);
return NULL;
}
Dprintf("psyco_conn_lobject: new lobject at %p: refcnt = "
FORMAT_CODE_PY_SSIZE_T,
obj, obj->ob_refcnt);
return obj;
}
