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author | Bruce Momjian <bruce@momjian.us> | 1999-05-10 16:10:51 +0000 |
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committer | Bruce Momjian <bruce@momjian.us> | 1999-05-10 16:10:51 +0000 |
commit | 94bd4e3da713e412a56582ed516ea23af5f96877 (patch) | |
tree | ca805c65e933b2d4b621388d1caa058ba9ddf5b9 /src/interfaces/python/pgmodule.c | |
parent | 86dacdb74c20d8af6ec900b7cd163df031ab90e4 (diff) | |
download | postgresql-94bd4e3da713e412a56582ed516ea23af5f96877.tar.gz postgresql-94bd4e3da713e412a56582ed516ea23af5f96877.zip |
Update to PyGreSQL 2.3.
Diffstat (limited to 'src/interfaces/python/pgmodule.c')
-rw-r--r-- | src/interfaces/python/pgmodule.c | 2115 |
1 files changed, 0 insertions, 2115 deletions
diff --git a/src/interfaces/python/pgmodule.c b/src/interfaces/python/pgmodule.c deleted file mode 100644 index 34c534e5ce8..00000000000 --- a/src/interfaces/python/pgmodule.c +++ /dev/null @@ -1,2115 +0,0 @@ -/* - * PyGres, version 2.2 A Python interface for PostgreSQL database. Written by - * D'Arcy J.M. Cain, (darcy@druid.net). Based heavily on code written by - * Pascal Andre, andre@chimay.via.ecp.fr. Copyright (c) 1995, Pascal Andre - * (andre@via.ecp.fr). - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose, without fee, and without a written - * agreement is hereby granted, provided that the above copyright notice and - * this paragraph and the following two paragraphs appear in all copies or in - * any new file that contains a substantial portion of this file. - * - * IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, - * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, - * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE - * AUTHOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE - * AUTHOR HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, - * ENHANCEMENTS, OR MODIFICATIONS. - * - * Further modifications copyright 1997 by D'Arcy J.M. Cain (darcy@druid.net) - * subject to the same terms and conditions as above. - * - */ - -#include <Python.h> -#include <libpq-fe.h> -#include <libpq/libpq-fs.h> -#include <stdio.h> -#include <string.h> - -/* really bad stuff here - I'm so naughty */ -/* If you need to you can run mkdefines to get */ -/* current defines but it should not have changed */ -#define INT2OID 21 -#define INT4OID 23 -#define OIDOID 26 -#define FLOAT4OID 700 -#define FLOAT8OID 701 -#define CASHOID 790 - -static PyObject *PGError; -static char *PyPgVersion = "2.2"; - -/* taken from fileobject.c */ -#define BUF(v) PyString_AS_STRING((PyStringObject *)(v)) - -#define CHECK_OPEN 1 -#define CHECK_CLOSE 2 - -#define MAX_BUFFER_SIZE MAX_QUERY_SIZE /* maximum transaction size */ - -#ifndef NO_DIRECT -#define DIRECT_ACCESS 1 /* enables direct access functions */ -#endif /* NO_DIRECT */ - -#ifndef NO_LARGE -#define LARGE_OBJECTS 1 /* enables large objects support */ -#endif /* NO_LARGE */ - -#ifndef NO_DEF_VAR -#define DEFAULT_VARS 1 /* enables default variables use */ -#endif /* NO_DEF_VAR */ - -/* --------------------------------------------------------------------- */ - -/* MODULE GLOBAL VARIABLES */ - -#ifdef DEFAULT_VARS - -PyObject *pg_default_host; /* default database host */ -PyObject *pg_default_base; /* default database name */ -PyObject *pg_default_opt; /* default connection options */ -PyObject *pg_default_tty; /* default debug tty */ -PyObject *pg_default_port; /* default connection port */ -PyObject *pg_default_user; /* default username */ -PyObject *pg_default_passwd; /* default password */ - -#endif /* DEFAULT_VARS */ - -/* --------------------------------------------------------------------- */ - -/* OBJECTS DECLARATION */ - -/* pg connection object */ - -typedef struct -{ - PyObject_HEAD - int valid; /* validity flag */ - PGconn *cnx; /* PostGres connection handle */ -} pgobject; - -staticforward PyTypeObject PgType; - -#define is_pgobject(v) ((v)->ob_type == &PgType) - -/* pg query object */ - -typedef struct -{ - PyObject_HEAD - PGresult *last_result; /* last result content */ -} pgqueryobject; - -staticforward PyTypeObject PgQueryType; - -#define is_pgqueryobject(v) ((v)->ob_type == &PgQueryType) - -#ifdef LARGE_OBJECTS -/* pg large object */ - -typedef struct -{ - PyObject_HEAD - pgobject * pgcnx; - Oid lo_oid; - int lo_fd; -} pglargeobject; - -staticforward PyTypeObject PglargeType; - -#define is_pglargeobject(v) ((v)->ob_type == &PglargeType) -#endif /* LARGE_OBJECTS */ - -/* --------------------------------------------------------------------- */ - -/* INTERNAL FUNCTIONS */ - -#ifdef LARGE_OBJECTS -/* validity check (large object) */ -static int -check_lo(pglargeobject * self, int level) -{ - if (!self->lo_oid) - { - PyErr_SetString(PGError, "object is not valid (null oid)."); - return 0; - } - - if (level & CHECK_OPEN) - { - if (self->lo_fd < 0) - { - PyErr_SetString(PyExc_IOError, "object is not opened."); - return 0; - } - } - - if (level & CHECK_CLOSE) - { - if (self->lo_fd >= 0) - { - PyErr_SetString(PyExc_IOError, "object is already opened."); - return 0; - } - } - - return 1; -} - -#endif /* LARGE_OBJECTS */ - -/* --------------------------------------------------------------------- */ - -#ifdef LARGE_OBJECTS -/* PG CONNECTION OBJECT IMPLEMENTATION */ - -/* pglargeobject initialisation (from pgobject) */ - -/* creates large object */ -static PyObject * -pg_locreate(pgobject * self, PyObject * args) -{ - int mode; - pglargeobject *npglo; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "i", &mode)) - { - PyErr_SetString(PyExc_TypeError, - "locreate(mode), with mode (integer)."); - return NULL; - } - - if ((npglo = PyObject_NEW(pglargeobject, &PglargeType)) == NULL) - return NULL; - - npglo->pgcnx = self; - Py_XINCREF(self); - npglo->lo_fd = -1; - npglo->lo_oid = lo_creat(self->cnx, mode); - - /* checks result validity */ - if (npglo->lo_oid == 0) - { - PyErr_SetString(PGError, "can't create large object."); - Py_XDECREF(npglo); - return NULL; - } - - return (PyObject *) npglo; -} - -/* init from already known oid */ -static PyObject * -pg_getlo(pgobject * self, PyObject * args) -{ - int lo_oid; - pglargeobject *npglo; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "i", &lo_oid)) - { - PyErr_SetString(PyExc_TypeError, "loopen(oid), with oid (integer)."); - return NULL; - } - - if (!lo_oid) - { - PyErr_SetString(PyExc_ValueError, "the object oid can't be null."); - return NULL; - } - - /* creates object */ - if ((npglo = PyObject_NEW(pglargeobject, &PglargeType)) == NULL) - return NULL; - - npglo->pgcnx = self; - Py_XINCREF(self); - npglo->lo_fd = -1; - npglo->lo_oid = lo_oid; - - return (PyObject *) npglo; -} - -/* import unix file */ -static PyObject * -pg_loimport(pgobject * self, PyObject * args) -{ - char *name; - pglargeobject *npglo; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "s", &name)) - { - PyErr_SetString(PyExc_TypeError, "loimport(name), with name (string)."); - return NULL; - } - - if ((npglo = PyObject_NEW(pglargeobject, &PglargeType)) == NULL) - return NULL; - - npglo->pgcnx = self; - Py_XINCREF(self); - npglo->lo_fd = -1; - npglo->lo_oid = lo_import(self->cnx, name); - - /* checks result validity */ - if (npglo->lo_oid == 0) - { - PyErr_SetString(PGError, "can't create large object."); - Py_XDECREF(npglo); - return NULL; - } - - return (PyObject *) npglo; -} - -/* pglargeobject methods */ - -/* destructor */ -static void -pglarge_dealloc(pglargeobject * self) -{ - if (self->lo_fd >= 0 && self->pgcnx->valid == 1) - lo_close(self->pgcnx->cnx, self->lo_fd); - - Py_XDECREF(self->pgcnx); - PyMem_DEL(self); -} - -/* opens large object */ -static PyObject * -pglarge_open(pglargeobject * self, PyObject * args) -{ - int mode, fd; - - /* check validity */ - if (!check_lo(self, CHECK_CLOSE)) - return NULL; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "i", &mode)) - { - PyErr_SetString(PyExc_TypeError, "open(mode), with mode(integer)."); - return NULL; - } - - /* opens large object */ - if ((fd = lo_open(self->pgcnx->cnx, self->lo_oid, mode)) < 0) - { - PyErr_SetString(PyExc_IOError, "can't open large object."); - return NULL; - } - self->lo_fd = fd; - - /* no error : returns Py_None */ - Py_INCREF(Py_None); - return Py_None; -} - -/* close large object */ -static PyObject * -pglarge_close(pglargeobject * self, PyObject * args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method close() takes no parameters."); - return NULL; - } - - /* checks validity */ - if (!check_lo(self, CHECK_OPEN)) - return NULL; - - /* closes large object */ - if (lo_close(self->pgcnx->cnx, self->lo_fd)) - { - PyErr_SetString(PyExc_IOError, "error while closing large object fd."); - return NULL; - } - self->lo_fd = -1; - - /* no error : returns Py_None */ - Py_INCREF(Py_None); - return Py_None; -} - -/* reads from large object */ -static PyObject * -pglarge_read(pglargeobject * self, PyObject * args) -{ - int size; - PyObject *buffer; - - /* checks validity */ - if (!check_lo(self, CHECK_OPEN)) - return NULL; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "i", &size)) - { - PyErr_SetString(PyExc_TypeError, "read(size), wih size (integer)."); - return NULL; - } - - if (size <= 0) - { - PyErr_SetString(PyExc_ValueError, "size must be positive."); - return NULL; - } - - /* allocate buffer and runs read */ - buffer = PyString_FromStringAndSize((char *) NULL, size); - - if ((size = lo_read(self->pgcnx->cnx, self->lo_fd, BUF(buffer), size)) < 0) - { - PyErr_SetString(PyExc_IOError, "error while reading."); - Py_XDECREF(buffer); - return NULL; - } - - /* resize buffer and returns it */ - _PyString_Resize(&buffer, size); - return buffer; -} - -/* write to large object */ -static PyObject * -pglarge_write(pglargeobject * self, PyObject * args) -{ - char *buffer; - int size; - - /* checks validity */ - if (!check_lo(self, CHECK_OPEN)) - return NULL; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "s", &buffer)) - { - PyErr_SetString(PyExc_TypeError, - "write(buffer), with buffer (sized string)."); - return NULL; - } - - /* sends query */ - if ((size = lo_write(self->pgcnx->cnx, self->lo_fd, buffer, - strlen(buffer))) < strlen(buffer)) - { - PyErr_SetString(PyExc_IOError, "buffer truncated during write."); - return NULL; - } - - /* no error : returns Py_None */ - Py_INCREF(Py_None); - return Py_None; -} - -/* go to position in large object */ -static PyObject * -pglarge_lseek(pglargeobject * self, PyObject * args) -{ - int ret, offset, whence; - - /* checks validity */ - if (!check_lo(self, CHECK_OPEN)) - return NULL; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "ii", &offset, &whence)) - { - PyErr_SetString(PyExc_TypeError, - "lseek(offset, whence), with offset and whence (integers)."); - return NULL; - } - - /* sends query */ - if ((ret = lo_lseek(self->pgcnx->cnx, self->lo_fd, offset, whence)) == -1) - { - PyErr_SetString(PyExc_IOError, "error while moving cursor."); - return NULL; - } - - /* returns position */ - return PyInt_FromLong(ret); -} - -/* gets large object size */ -static PyObject * -pglarge_size(pglargeobject * self, PyObject * args) -{ - int start, end; - - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method size() takes no parameters."); - return NULL; - } - - /* checks validity */ - if (!check_lo(self, CHECK_OPEN)) - return NULL; - - /* gets current position */ - if ((start = lo_tell(self->pgcnx->cnx, self->lo_fd)) == -1) - { - PyErr_SetString(PyExc_IOError, "error while getting current position."); - return NULL; - } - - /* gets end position */ - if ((end = lo_lseek(self->pgcnx->cnx, self->lo_fd, 0, SEEK_END)) == -1) - { - PyErr_SetString(PyExc_IOError, "error while getting end position."); - return NULL; - } - - /* move back to start position */ - if ((start = lo_lseek(self->pgcnx->cnx,self->lo_fd,start,SEEK_SET)) == -1) - { - PyErr_SetString(PyExc_IOError, - "error while moving back to first position."); - return NULL; - } - - /* returns size */ - return PyInt_FromLong(end); -} - -/* gets large object cursor position */ -static PyObject * -pglarge_tell(pglargeobject * self, PyObject * args) -{ - int start; - - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method tell() takes no parameters."); - return NULL; - } - - /* checks validity */ - if (!check_lo(self, CHECK_OPEN)) - return NULL; - - /* gets current position */ - if ((start = lo_tell(self->pgcnx->cnx, self->lo_fd)) == -1) - { - PyErr_SetString(PyExc_IOError, "error while getting position."); - return NULL; - } - - /* returns size */ - return PyInt_FromLong(start); -} - -/* exports large object as unix file */ -static PyObject * -pglarge_export(pglargeobject * self, PyObject * args) -{ - char *name; - - /* checks validity */ - if (!check_lo(self, CHECK_CLOSE)) - return NULL; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "s", &name)) - { - PyErr_SetString(PyExc_TypeError, - "export(filename), with filename (string)."); - return NULL; - } - - /* runs command */ - if (!lo_export(self->pgcnx->cnx, self->lo_oid, name)) - { - PyErr_SetString(PyExc_IOError, "error while exporting large object."); - return NULL; - } - - Py_INCREF(Py_None); - return Py_None; -} - -/* deletes a large object */ -static PyObject * -pglarge_unlink(pglargeobject * self, PyObject * args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method unlink() takes no parameters."); - return NULL; - } - - /* checks validity */ - if (!check_lo(self, CHECK_CLOSE)) - return NULL; - - /* deletes the object, invalidate it on success */ - if (!lo_unlink(self->pgcnx->cnx, self->lo_oid)) - { - PyErr_SetString(PyExc_IOError, "error while unlinking large object"); - return NULL; - } - self->lo_oid = 0; - - Py_INCREF(Py_None); - return Py_None; -} - -/* large object methods */ -static struct PyMethodDef pglarge_methods[] = { - {"open", (PyCFunction) pglarge_open, 1}, /* opens large object */ - {"close", (PyCFunction) pglarge_close, 1},/* closes large object */ - {"read", (PyCFunction) pglarge_read, 1}, /* reads from large object */ - {"write", (PyCFunction) pglarge_write, 1},/* writes to large object */ - {"seek", (PyCFunction) pglarge_lseek, 1},/* seeks position */ - {"size", (PyCFunction) pglarge_size, 1}, /* gives object size */ - {"tell", (PyCFunction) pglarge_tell, 1}, /* gives position in lobj */ - {"export", (PyCFunction) pglarge_export, 1},/* exports to unix file */ - {"unlink", (PyCFunction) pglarge_unlink, 1},/* deletes a large object */ - {NULL, NULL} /* sentinel */ -}; - -/* get attribute */ -static PyObject * -pglarge_getattr(pglargeobject * self, char *name) -{ - /* list postgreSQL large object fields */ - - /* associated pg connection object */ - if (!strcmp(name, "pgcnx")) - { - if (check_lo(self, 0)) - { - Py_INCREF(self->pgcnx); - return (PyObject *) (self->pgcnx); - } - - Py_INCREF(Py_None); - return Py_None; - } - - /* large object oid */ - if (!strcmp(name, "oid")) - { - if (check_lo(self, 0)) - return PyInt_FromLong(self->lo_oid); - - Py_INCREF(Py_None); - return Py_None; - } - - /* error (status) message */ - if (!strcmp(name, "error")) - return PyString_FromString(PQerrorMessage(self->pgcnx->cnx)); - - /* attributes list */ - if (!strcmp(name, "__members__")) - { - PyObject *list = PyList_New(3); - - if (list) - { - PyList_SetItem(list, 0, PyString_FromString("oid")); - PyList_SetItem(list, 1, PyString_FromString("pgcnx")); - PyList_SetItem(list, 2, PyString_FromString("error")); - } - - return list; - } - - return Py_FindMethod(pglarge_methods, (PyObject *) self, name); -} - -/* object type definition */ -staticforward PyTypeObject PglargeType = { - PyObject_HEAD_INIT(&PyType_Type) - 0, /* ob_size */ - "pglarge", /* tp_name */ - sizeof(pglargeobject), /* tp_basicsize */ - 0, /* tp_itemsize */ - - /* methods */ - (destructor) pglarge_dealloc, /* tp_dealloc */ - 0, /* tp_print */ - (getattrfunc) pglarge_getattr, /* tp_getattr */ - 0, /* tp_setattr */ - 0, /* tp_compare */ - 0, /* tp_repr */ - 0, /* tp_as_number */ - 0, /* tp_as_sequence */ - 0, /* tp_as_mapping */ - 0, /* tp_hash */ -}; - -#endif /* LARGE_OBJECTS */ - - -/* --------------------------------------------------------------------- */ - -/* PG CONNECTION OBJECT IMPLEMENTATION */ - -/* pgobject initialisation (from module) */ - -static PyObject * -pgconnect(pgobject * self, PyObject * args, PyObject * dict) -{ - char *pghost, *pgopt, *pgtty, *pgdbname, *pguser, *pgpasswd; - int pgport; - char port_buffer[20]; - PyObject *temp; - pgobject *npgobj; - PGconn *test_cnx; - - pghost = pgopt = pgtty = pgdbname = pguser = pgpasswd = NULL; - pgport = -1; - - /* parses standard arguments */ - if (!PyArg_ParseTuple(args, "|zzlzzzz", - &pgdbname, &pghost, &pgport, &pgopt, &pgtty, &pguser, &pgpasswd)) - { - PyErr_Clear(); - - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_TypeError, - "connect(dbname, host, port, opt, tty, user, password), " - "with args (opt., strings or None)."); - return NULL; - } - } - - /* looks for keywords arguments */ - if (PyMapping_Check(dict)) - { - /* server host */ - if (PyMapping_HasKeyString(dict, "host")) - { - if ((temp = PyMapping_GetItemString(dict, "host")) != NULL) - { - if (pghost) - { - PyErr_SetString(PyExc_SyntaxError, - "Duplicate argument definition."); - return NULL; - } - - if (!PyString_Check(temp)) - { - PyErr_SetString(PyExc_TypeError, - "'Host' argument must be a string."); - return NULL; - } - - pghost = PyString_AsString(temp); - } - } - - /* server port */ - if (PyMapping_HasKeyString(dict, "port")) - { - if ((temp = PyMapping_GetItemString(dict, "port")) != NULL) - { - if (pgport != -1) - { - PyErr_SetString(PyExc_SyntaxError, - "Duplicate argument definition."); - return NULL; - } - - if (!PyInt_Check(temp)) - { - PyErr_SetString(PyExc_TypeError, - "'Port' argument must be an integer."); - return NULL; - } - - pgport = PyInt_AsLong(temp); - } - } - - /* connection options */ - if (PyMapping_HasKeyString(dict, "opt")) - { - if ((temp = PyMapping_GetItemString(dict, "opt")) != NULL) - { - if (pgtty) - { - PyErr_SetString(PyExc_SyntaxError, - "Duplicate argument definition."); - return NULL; - } - - if (!PyString_Check(temp)) - { - PyErr_SetString(PyExc_TypeError, - "'opt' argument must be a string."); - return NULL; - } - - pgopt = PyString_AsString(temp); - } - } - - /* debug terminal */ - if (PyMapping_HasKeyString(dict, "tty")) - { - if ((temp = PyMapping_GetItemString(dict, "tty")) != NULL) - { - if (pgtty) - { - PyErr_SetString(PyExc_SyntaxError, - "Duplicate argument definition."); - return NULL; - } - - if (!PyString_Check(temp)) - { - PyErr_SetString(PyExc_TypeError, - "'tty' argument must be a string."); - return NULL; - } - - pgtty = PyString_AsString(temp); - } - } - - /* database name */ - if (PyMapping_HasKeyString(dict, "dbname")) - { - if ((temp = PyMapping_GetItemString(dict, "dbname")) != NULL) - { - if (pgdbname) - { - PyErr_SetString(PyExc_SyntaxError, - "Duplicate argument definition."); - return NULL; - } - - if (!PyString_Check(temp)) - { - PyErr_SetString(PyExc_TypeError, - "'dbname' argument must be a string."); - return NULL; - } - - pgdbname = PyString_AsString(temp); - } - } - - /* username */ - if (PyMapping_HasKeyString(dict, "user")) - { - if ((temp = PyMapping_GetItemString(dict, "user")) != NULL) - { - if (pguser) - { - PyErr_SetString(PyExc_SyntaxError, - "Duplicate argument definition."); - - return NULL; - } - - if (!PyString_Check(temp)) - { - PyErr_SetString(PyExc_TypeError, - "'user' argument must be a string."); - - return NULL; - } - - pguser = PyString_AsString(temp); - } - } - - /* password */ - if (PyMapping_HasKeyString(dict, "passwd")) - { - if ((temp = PyMapping_GetItemString(dict, "passwd")) != NULL) - { - if (pgpasswd) - { - PyErr_SetString(PyExc_SyntaxError, - "Duplicate argument definition."); - - return NULL; - } - - if (!PyString_Check(temp)) - { - PyErr_SetString(PyExc_TypeError, - "'passwd' argument must be a string."); - - return NULL; - } - - pgpasswd = PyString_AsString(temp); - } - } - } - -#ifdef DEFAULT_VARS - /* handles defaults variables (for unintialised vars) */ - if ((!pghost) && (pg_default_host != Py_None)) - pghost = PyString_AsString(pg_default_host); - - if ((pgport == -1) && (pg_default_port != Py_None)) - pgport = PyInt_AsLong(pg_default_port); - - if ((!pgopt) && (pg_default_opt != Py_None)) - pgopt = PyString_AsString(pg_default_opt); - - if ((!pgtty) && (pg_default_tty != Py_None)) - pgtty = PyString_AsString(pg_default_tty); - - if ((!pgdbname) && (pg_default_base != Py_None)) - pgdbname = PyString_AsString(pg_default_base); - - if ((!pguser) && (pg_default_user != Py_None)) - pguser = PyString_AsString(pg_default_user); - - if ((!pgpasswd) && (pg_default_passwd != Py_None)) - pgpasswd = PyString_AsString(pg_default_passwd); -#endif /* DEFAULT_VARS */ - - if ((npgobj = PyObject_NEW(pgobject, &PgType)) == NULL) - return NULL; - - if (pgport != -1) - { - bzero(port_buffer, sizeof(port_buffer)); - sprintf(port_buffer, "%d", pgport); - npgobj->cnx = PQsetdbLogin(pghost, port_buffer, pgopt, pgtty, pgdbname, - pguser, pgpasswd); - } - else - npgobj->cnx = PQsetdbLogin(pghost, NULL, pgopt, pgtty, pgdbname, - pguser, pgpasswd); - - if (PQstatus(npgobj->cnx) == CONNECTION_BAD) - { - PyErr_SetString(PGError, PQerrorMessage(npgobj->cnx)); - Py_XDECREF(npgobj); - return NULL; - } - - return (PyObject *) npgobj; -} - -/* pgobject methods */ - -/* destructor */ -static void -pg_dealloc(pgobject * self) -{ - PQfinish(self->cnx); - PyMem_DEL(self); -} - -static void -pg_querydealloc(pgqueryobject * self) -{ - if (self->last_result) - PQclear(self->last_result); - - PyMem_DEL(self); -} - -/* resets connection */ -static PyObject * -pg_reset(pgobject * self, PyObject * args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method reset() takes no parameters."); - return NULL; - } - - /* resets the connection */ - PQreset(self->cnx); - Py_INCREF(Py_None); - return Py_None; -} - -/* list fields names from query result */ -static PyObject * -pg_listfields(pgqueryobject * self, PyObject * args) -{ - int i, n; - char *name; - PyObject *fieldstuple, *str; - - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method listfields() takes no parameters."); - return NULL; - } - - /* builds tuple */ - n = PQnfields(self->last_result); - fieldstuple = PyTuple_New(n); - - for (i = 0; i < n; i++) - { - name = PQfname(self->last_result, i); - str = PyString_FromString(name); - PyTuple_SetItem(fieldstuple, i, str); - } - - return fieldstuple; -} - -/* get field name from last result */ -static PyObject * -pg_fieldname(pgqueryobject * self, PyObject * args) -{ - int i; - char *name; - - /* gets args */ - if (!PyArg_ParseTuple(args, "i", &i)) - { - PyErr_SetString(PyExc_TypeError, - "fieldname(number), with number(integer)."); - return NULL; - } - - /* checks number validity */ - if (i >= PQnfields(self->last_result)) - { - PyErr_SetString(PyExc_ValueError, "invalid field number."); - return NULL; - } - - /* gets fields name and builds object */ - name = PQfname(self->last_result, i); - return PyString_FromString(name); -} - -/* gets fields number from name in last result */ -static PyObject * -pg_fieldnum(pgqueryobject * self, PyObject * args) -{ - char *name; - int num; - - /* gets args */ - if (!PyArg_ParseTuple(args, "s", &name)) - { - PyErr_SetString(PyExc_TypeError, "fieldnum(name), with name (string)."); - return NULL; - } - - /* gets field number */ - if ((num = PQfnumber(self->last_result, name)) == -1) - { - PyErr_SetString(PyExc_ValueError, "Unknown field."); - return NULL; - } - - return PyInt_FromLong(num); -} - -/* retrieves last result */ -static PyObject * -pg_getresult(pgqueryobject * self, PyObject * args) -{ - PyObject *rowtuple, *reslist, *val; - int i, j, m, n, *typ; - - /* checks args (args == NULL for an internal call) */ - if ((args != NULL) && (!PyArg_ParseTuple(args, ""))) - { - PyErr_SetString(PyExc_SyntaxError, - "method getresult() takes no parameters."); - return NULL; - } - - /* stores result in tuple */ - reslist = PyList_New(0); - m = PQntuples(self->last_result); - n = PQnfields(self->last_result); - - if ((typ = malloc(sizeof(int) * n)) == NULL) - { - PyErr_SetString(PyExc_SyntaxError, "memory error in getresult()."); - return NULL; - } - - for (j = 0; j < n; j++) - { - switch (PQftype(self->last_result, j)) - { - case INT2OID: - case INT4OID: - case OIDOID: - typ[j] = 1; - break; - - case FLOAT4OID: - case FLOAT8OID: - typ[j] = 2; - break; - - case CASHOID: - typ[j] = 3; - break; - - default: - typ[j] = 4; - break; - } - } - - for (i = 0; i < m; i++) - { - rowtuple = PyTuple_New(n); - for (j = 0; j < n; j++) - { - char *s = PQgetvalue(self->last_result, i, j); - char cashbuf[64]; - int i; - - switch (typ[j]) - { - case 1: - val = PyInt_FromLong(strtol(s, NULL, 10)); - break; - - case 2: - val = PyFloat_FromDouble(strtod(s, NULL)); - break; - - case 3: /* get rid of the '$' and commas */ - if (*s == '$') /* there's talk of getting rid of it */ - s++; - - for (i = 0; *s; s++) - if (*s != ',') - cashbuf[i++] = *s; - - cashbuf[i] = 0; - val = PyFloat_FromDouble(strtod(cashbuf, NULL)); - break; - - default: - val = PyString_FromString(s); - break; - } - - PyTuple_SetItem(rowtuple, j, val); - } - - PyList_Append(reslist, rowtuple); - Py_XDECREF(rowtuple); - } - - free(typ); - - /* returns list */ - return reslist; -} - -/* retrieves last result as a list of dictionaries*/ -static PyObject * -pg_dictresult(pgqueryobject * self, PyObject * args) -{ - PyObject *dict, *reslist, *val; - int i, j, m, n, *typ; - - /* checks args (args == NULL for an internal call) */ - if ((args != NULL) && (!PyArg_ParseTuple(args, ""))) - { - PyErr_SetString(PyExc_SyntaxError, - "method getresult() takes no parameters."); - return NULL; - } - - /* stores result in list */ - reslist = PyList_New(0); - m = PQntuples(self->last_result); - n = PQnfields(self->last_result); - - if ((typ = malloc(sizeof(int) * n)) == NULL) - { - PyErr_SetString(PyExc_SyntaxError, "memory error in getresult()."); - return NULL; - } - - for (j = 0; j < n; j++) - { - switch (PQftype(self->last_result, j)) - { - case INT2OID: - case INT4OID: - case OIDOID: - typ[j] = 1; - break; - - case FLOAT4OID: - case FLOAT8OID: - typ[j] = 2; - break; - - case CASHOID: - typ[j] = 3; - break; - - default: - typ[j] = 4; - break; - } - } - - for (i = 0; i < m; i++) - { - dict = PyDict_New(); - for (j = 0; j < n; j++) - { - char *s = PQgetvalue(self->last_result, i, j); - char cashbuf[64]; - int i; - - switch (typ[j]) - { - case 1: - val = PyInt_FromLong(strtol(s, NULL, 10)); - break; - - case 2: - val = PyFloat_FromDouble(strtod(s, NULL)); - break; - - case 3: /* get rid of the '$' and commas */ - if (*s == '$') /* there's talk of getting rid of it */ - s++; - - for (i = 0; *s; s++) - if (*s != ',') - cashbuf[i++] = *s; - - cashbuf[i] = 0; - val = PyFloat_FromDouble(strtod(cashbuf, NULL)); - break; - - default: - val = PyString_FromString(s); - break; - } - - PyDict_SetItemString(dict, PQfname(self->last_result, j), val); - } - - PyList_Append(reslist, dict); - Py_XDECREF(dict); - } - - free(typ); - - /* returns list */ - return reslist; -} - -/* getq asynchronous notify */ -static PyObject * -pg_getnotify(pgobject * self, PyObject * args) -{ - PGnotify *notify; - PGresult *result; - PyObject *notify_result, *temp; - - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method getnotify() takes no parameters."); - return NULL; - } - - /* gets notify and builds result */ - /* notifies only come back as result of a query, so I send an empty query */ - result = PQexec(self->cnx, " "); - - if ((notify = PQnotifies(self->cnx)) != NULL) - { - notify_result = PyTuple_New(2); - temp = PyString_FromString(notify->relname); - PyTuple_SetItem(notify_result, 0, temp); - temp = PyInt_FromLong(notify->be_pid); - PyTuple_SetItem(notify_result, 1, temp); - free(notify); - } - else - { - Py_INCREF(Py_None); - notify_result = Py_None; - } - - PQclear(result); - - /* returns result */ - return notify_result; -} - -/* database query */ -static PyObject * -pg_query(pgobject * self, PyObject * args) -{ - char *query; - PGresult *result; - PyObject *rowtuple, *reslist, *str; - pgqueryobject *npgobj; - int i, j, m, n, status; - - /* get query args */ - if (!PyArg_ParseTuple(args, "s", &query)) - { - PyErr_SetString(PyExc_TypeError, "query(sql), with sql (string)."); - return NULL; - } - - /* gets result */ - result = PQexec(self->cnx, query); - - /* checks result validity */ - if (!result) - { - PyErr_SetString(PyExc_ValueError, PQerrorMessage(self->cnx)); - return NULL; - } - - /* checks result status */ - if ((status = PQresultStatus(result)) != PGRES_TUPLES_OK) - { - const char *str; - - PQclear(result); - - switch (status) - { - case PGRES_EMPTY_QUERY: - PyErr_SetString(PyExc_ValueError, "empty query."); - break; - case PGRES_BAD_RESPONSE: - PyErr_SetString(PGError, - "unexpected responsed received from server."); - break; - case PGRES_FATAL_ERROR: - PyErr_SetString(PGError, - "server fatal error. " - "Please report to your db administrator."); - break; - case PGRES_NONFATAL_ERROR: - PyErr_SetString(PGError, "server (non fatal) error."); - break; - case PGRES_COMMAND_OK: /* could be an INSERT */ - if (*(str = PQoidStatus(result)) == 0) /* nope */ - { - Py_INCREF(Py_None); - return Py_None; - } - - /* otherwise, return the oid */ - return PyInt_FromLong(strtol(str, NULL, 10)); - - case PGRES_COPY_OUT: /* no data will be received */ - case PGRES_COPY_IN: - Py_INCREF(Py_None); - return Py_None; - default: - PyErr_SetString(PGError, "internal error: " - "unknown result status."); - break; - } - - return NULL; /* error detected on query */ - } - - if ((npgobj = PyObject_NEW(pgqueryobject, &PgQueryType)) == NULL) - return NULL; - - /* stores result and returns object */ - npgobj->last_result = result; - return (PyObject *) npgobj; -} - -#ifdef DIRECT_ACCESS -/* direct acces function : putline */ -static PyObject * -pg_putline(pgobject * self, PyObject * args) -{ - char *line; - - /* reads args */ - if (!PyArg_ParseTuple(args, "s", &line)) - { - PyErr_SetString(PyExc_TypeError, "putline(line), with line (string)."); - return NULL; - } - - /* sends line to backend */ - PQputline(self->cnx, line); - Py_INCREF(Py_None); - return Py_None; -} - -/* direct access function : getline */ -static PyObject * -pg_getline(pgobject * self, PyObject * args) -{ - char *line; - PyObject *str; - int ret; - - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method getline() takes no parameters."); - return NULL; - } - - /* allocate buffer */ - if ((line = malloc(MAX_BUFFER_SIZE)) == NULL) - { - PyErr_SetString(PyExc_MemoryError, "can't allocate getline buffer"); - return NULL; - } - - /* gets line */ - switch (PQgetline(self->cnx, line, MAX_BUFFER_SIZE)) - { - case 0: - str = PyString_FromString(line); - break; - case 1: - PyErr_SetString(PyExc_MemoryError, "buffer overflow"); - str = NULL; - break; - case EOF: - Py_INCREF(Py_None); - str = Py_None; - break; - } - - free(line); - return str; -} - -/* direct access function : end copy */ -static PyObject * -pg_endcopy(pgobject * self, PyObject * args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method endcopy() takes no parameters."); - return NULL; - } - - /* ends direct copy */ - PQendcopy(self->cnx); - Py_INCREF(Py_None); - return Py_None; -} -#endif /* DIRECT_ACCESS */ - - -static PyObject * -pg_print(pgqueryobject *self, FILE *fp, int flags) -{ - PQprintOpt op; - - memset(&op, 0, sizeof(op)); - op.align = 1; - op.header = 1; - op.fieldSep = "|"; - op.pager = 1; - PQprint(fp, self->last_result, &op); - return 0; -} - -/* insert table */ -static PyObject * -pg_inserttable(pgobject * self, PyObject * args) -{ - PGresult *result; - char *table, *buffer, *temp; - char temp_buffer[256]; - PyObject *list, *sublist, *item; - PyObject *(*getitem) (PyObject *, int); - PyObject *(*getsubitem) (PyObject *, int); - int i, j; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "sO:filter", &table, &list)) - { - PyErr_SetString(PyExc_TypeError, - "tableinsert(table, content), with table (string) " - "and content (list)."); - return NULL; - } - - /* checks list type */ - if (PyTuple_Check(list)) - getitem = PyTuple_GetItem; - else if (PyList_Check(list)) - getitem = PyList_GetItem; - else - { - PyErr_SetString(PyExc_TypeError, - "second arg must be some kind of array."); - return NULL; - } - - /* checks sublists type */ - for (i = 0; sublist = getitem(list, i); i++) - { - if (!PyTuple_Check(sublist) && !PyList_Check(sublist)) - { - PyErr_SetString(PyExc_TypeError, - "second arg must contain some kind of arrays."); - return NULL; - } - } - - /* allocate buffer */ - if (!(buffer = malloc(MAX_BUFFER_SIZE))) - { - PyErr_SetString(PyExc_MemoryError, "can't allocate insert buffer."); - return NULL; - } - - /* starts query */ - sprintf(buffer, "copy %s from stdin", table); - - if (!(result = PQexec(self->cnx, buffer))) - { - free(buffer); - PyErr_SetString(PyExc_ValueError, PQerrorMessage(self->cnx)); - return NULL; - } - - PQclear(result); - - /* feeds table */ - for (i = 0; sublist = getitem(list, i); i++) - { - if (PyTuple_Check(sublist)) - getsubitem = PyTuple_GetItem; - else - getsubitem = PyList_GetItem; - - /* builds insert line */ - buffer[0] = 0; - - for (j = 0; item = getsubitem(sublist, j); j++) - { - /* converts item to string */ - if (PyString_Check(item)) - PyArg_ParseTuple(item, "s", &temp); - else if (PyInt_Check(item)) - { - int k; - - PyArg_ParseTuple(item, "i", &k); - sprintf(temp_buffer, "%d", k); - temp = temp_buffer; - } - else if (PyLong_Check(item)) - { - long k; - - PyArg_ParseTuple(item, "l", &k); - sprintf(temp_buffer, "%ld", k); - temp = temp_buffer; - } - else if (PyFloat_Check(item)) - { - double k; - - PyArg_ParseTuple(item, "d", &k); - sprintf(temp_buffer, "%g", k); - temp = temp_buffer; - } - else - { - free(buffer); - PyErr_SetString(PyExc_ValueError, - "items must be strings, integers, " - "longs or double (real)."); - return NULL; - } - - /* concats buffer */ - if (strlen(buffer)) - strncat(buffer, "\t", MAX_BUFFER_SIZE - strlen(buffer)); - - fprintf(stderr, "Buffer: '%s', Temp: '%s'\n", buffer, temp); - strncat(buffer, temp, MAX_BUFFER_SIZE - strlen(buffer)); - } - - strncat(buffer, "\n", MAX_BUFFER_SIZE - strlen(buffer)); - - /* sends data */ - PQputline(self->cnx, buffer); - } - - /* ends query */ - PQputline(self->cnx, ".\n"); - PQendcopy(self->cnx); - free(buffer); - - /* no error : returns nothing */ - Py_INCREF(Py_None); - return Py_None; -} - -/* connection object methods */ -static struct PyMethodDef pgobj_methods[] = { - {"query", (PyCFunction) pg_query, 1}, /* query method */ - {"reset", (PyCFunction) pg_reset, 1}, /* connection reset */ - {"getnotify", (PyCFunction) pg_getnotify, 1}, /* checks for notify */ - {"inserttable", (PyCFunction) pg_inserttable, 1}, /* table insert */ - -#ifdef DIRECT_ACCESS - {"putline", (PyCFunction) pg_putline, 1}, /* direct access: putline */ - {"getline", (PyCFunction) pg_getline, 1}, /* direct access: getline */ - {"endcopy", (PyCFunction) pg_endcopy, 1}, /* direct access: endcopy */ -#endif /* DIRECT_ACCESS */ - -#ifdef LARGE_OBJECTS - {"locreate", (PyCFunction) pg_locreate, 1}, /* creates large object */ - {"getlo", (PyCFunction) pg_getlo, 1}, /* get lo from oid */ - {"loimport", (PyCFunction) pg_loimport, 1}, /* imports lo from file */ -#endif /* LARGE_OBJECTS */ - - {NULL, NULL} /* sentinel */ -}; - -/* get attribute */ -static PyObject * -pg_getattr(pgobject * self, char *name) -{ - /* list postgreSQL connection fields */ - - /* postmaster host */ - if (!strcmp(name, "host")) - return PyString_FromString(PQhost(self->cnx)); - - /* postmaster port */ - if (!strcmp(name, "port")) - return PyInt_FromLong(atol(PQport(self->cnx))); - - /* selected database */ - if (!strcmp(name, "db")) - return PyString_FromString(PQdb(self->cnx)); - - /* selected options */ - if (!strcmp(name, "options")) - return PyString_FromString(PQoptions(self->cnx)); - - /* selected postgres tty */ - if (!strcmp(name, "tty")) - return PyString_FromString(PQtty(self->cnx)); - - /* error (status) message */ - if (!strcmp(name, "error")) - return PyString_FromString(PQerrorMessage(self->cnx)); - - /* connection status : 1 - OK, 0 - BAD */ - if (!strcmp(name, "status")) - return PyInt_FromLong(PQstatus(self->cnx) == CONNECTION_OK ? 1 : 0); - - /* provided user name */ - if (!strcmp(name, "user")) - return PyString_FromString("Deprecated facility"); - /* return PyString_FromString(fe_getauthname("<unknown user>")); */ - - /* attributes list */ - if (!strcmp(name, "__members__")) - { - PyObject *list = PyList_New(8); - - if (list) - { - PyList_SetItem(list, 0, PyString_FromString("host")); - PyList_SetItem(list, 1, PyString_FromString("port")); - PyList_SetItem(list, 2, PyString_FromString("db")); - PyList_SetItem(list, 3, PyString_FromString("options")); - PyList_SetItem(list, 4, PyString_FromString("tty")); - PyList_SetItem(list, 5, PyString_FromString("error")); - PyList_SetItem(list, 6, PyString_FromString("status")); - PyList_SetItem(list, 7, PyString_FromString("user")); - } - - return list; - } - - return Py_FindMethod(pgobj_methods, (PyObject *) self, name); -} - -/* object type definition */ -staticforward PyTypeObject PgType = { - PyObject_HEAD_INIT(&PyType_Type) - 0, /* ob_size */ - "pgobject", /* tp_name */ - sizeof(pgobject), /* tp_basicsize */ - 0, /* tp_itemsize */ - /* methods */ - (destructor) pg_dealloc, /* tp_dealloc */ - 0, /* tp_print */ - (getattrfunc) pg_getattr, /* tp_getattr */ - 0, /* tp_setattr */ - 0, /* tp_compare */ - 0, /* tp_repr */ - 0, /* tp_as_number */ - 0, /* tp_as_sequence */ - 0, /* tp_as_mapping */ - 0, /* tp_hash */ -}; - - -/* query object methods */ -static struct PyMethodDef pgquery_methods[] = { - {"getresult", (PyCFunction) pg_getresult, 1}, /* get last result */ - {"dictresult", (PyCFunction) pg_dictresult, 1}, /* get result as dict*/ - {"fieldname", (PyCFunction) pg_fieldname, 1}, /* get field name */ - {"fieldnum", (PyCFunction) pg_fieldnum, 1}, /* get field number */ - {"listfields", (PyCFunction) pg_listfields, 1}, /* list fields names */ - {NULL, NULL} /* sentinel */ -}; - -static PyObject * -pg_querygetattr(pgqueryobject * self, char *name) -{ - /* list postgreSQL connection fields */ - return Py_FindMethod(pgquery_methods, (PyObject *) self, name); -} - -/* query type definition */ -staticforward PyTypeObject PgQueryType = { - PyObject_HEAD_INIT(&PyType_Type) - 0, /* ob_size */ - "pgqueryobject", /* tp_name */ - sizeof(pgqueryobject), /* tp_basicsize */ - 0, /* tp_itemsize */ - /* methods */ - (destructor) pg_querydealloc,/* tp_dealloc */ - (printfunc) pg_print, /* tp_print */ - (getattrfunc) pg_querygetattr,/* tp_getattr */ - 0, /* tp_setattr */ - 0, /* tp_compare */ - 0, /* tp_repr */ - 0, /* tp_as_number */ - 0, /* tp_as_sequence */ - 0, /* tp_as_mapping */ - 0, /* tp_hash */ -}; - - - -/* --------------------------------------------------------------------- */ - -/* MODULE FUNCTIONS */ - -#ifdef DEFAULT_VARS - -/* gets default host */ -PyObject * -pggetdefhost(PyObject *self, PyObject *args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method get_defhost() takes no parameter."); - return NULL; - } - - Py_XINCREF(pg_default_host); - return pg_default_host; -} - -/* sets default host */ -PyObject * -pgsetdefhost(PyObject * self, PyObject *args) -{ - char *temp = NULL; - PyObject *old; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "z", &temp)) - { - PyErr_SetString(PyExc_TypeError, - "set_defhost(name), with name (string/None)."); - return NULL; - } - - /* adjusts value */ - old = pg_default_host; - - if (temp) - pg_default_host = PyString_FromString(temp); - else - { - Py_INCREF(Py_None); - pg_default_host = Py_None; - } - - return old; -} - -/* gets default base */ -PyObject * -pggetdefbase(PyObject * self, PyObject *args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method get_defbase() takes no parameter."); - return NULL; - } - - Py_XINCREF(pg_default_base); - return pg_default_base; -} - -/* sets default base */ -PyObject * -pgsetdefbase(PyObject * self, PyObject *args) -{ - char *temp = NULL; - PyObject *old; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "z", &temp)) - { - PyErr_SetString(PyExc_TypeError, - "set_defbase(name), with name (string/None)."); - return NULL; - } - - /* adjusts value */ - old = pg_default_base; - - if (temp) - pg_default_base = PyString_FromString(temp); - else - { - Py_INCREF(Py_None); - pg_default_base = Py_None; - } - - return old; -} - -/* gets default options */ -PyObject * -pggetdefopt(PyObject * self, PyObject *args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method get_defopt() takes no parameter."); - return NULL; - } - - Py_XINCREF(pg_default_opt); - return pg_default_opt; -} - -/* sets default opt */ -PyObject * -pgsetdefopt(PyObject * self, PyObject *args) -{ - char *temp = NULL; - PyObject *old; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "z", &temp)) - { - PyErr_SetString(PyExc_TypeError, - "set_defopt(name), with name (string/None)."); - return NULL; - } - - /* adjusts value */ - old = pg_default_opt; - - if (temp) - pg_default_opt = PyString_FromString(temp); - else - { - Py_INCREF(Py_None); - pg_default_opt = Py_None; - } - - return old; -} - -/* gets default tty */ -PyObject * -pggetdeftty(PyObject * self, PyObject *args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method get_deftty() takes no parameter."); - return NULL; - } - - Py_XINCREF(pg_default_tty); - return pg_default_tty; -} - -/* sets default tty */ -PyObject * -pgsetdeftty(PyObject * self, PyObject *args) -{ - char *temp = NULL; - PyObject *old; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "z", &temp)) - { - PyErr_SetString(PyExc_TypeError, - "set_deftty(name), with name (string/None)."); - return NULL; - } - - /* adjusts value */ - old = pg_default_tty; - - if (temp) - pg_default_tty = PyString_FromString(temp); - else - { - Py_INCREF(Py_None); - pg_default_tty = Py_None; - } - - return old; -} - -/* gets default username */ -PyObject * -pggetdefuser(PyObject * self, PyObject *args) -{ - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method get_defuser() takes no parameter."); - - return NULL; - } - - Py_XINCREF(pg_default_user); - return pg_default_user; -} - -/* sets default username */ -PyObject * -pgsetdefuser(PyObject * self, PyObject *args) -{ - char *temp = NULL; - PyObject *old; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "z", &temp)) - { - PyErr_SetString(PyExc_TypeError, - "set_defuser(name), with name (string/None)."); - return NULL; - } - - /* adjusts value */ - old = pg_default_user; - - if (temp) - pg_default_user = PyString_FromString(temp); - else - { - Py_INCREF(Py_None); - pg_default_user = Py_None; - } - - return old; -} - -/* sets default password */ -PyObject * -pgsetdefpasswd(PyObject * self, PyObject *args) -{ - char *temp = NULL; - PyObject *old; - - /* gets arguments */ - if (!PyArg_ParseTuple(args, "z", &temp)) - { - PyErr_SetString(PyExc_TypeError, - "set_defpasswd(password), with password (string/ -None)."); - return NULL; - } - - /* adjusts value */ - old = pg_default_passwd; - - if (temp) - pg_default_passwd = PyString_FromString(temp); - else - { - Py_INCREF(Py_None); - pg_default_passwd = Py_None; - } - - return old; -} - -/* gets default port */ -PyObject * -pggetdefport(PyObject * self, PyObject *args) -{ - char *temp; - - /* checks args */ - if (!PyArg_ParseTuple(args, "")) - { - PyErr_SetString(PyExc_SyntaxError, - "method get_defport() takes no parameter."); - return NULL; - } - - Py_XINCREF(pg_default_port); - return pg_default_port; -} - -/* sets default port */ -PyObject * -pgsetdefport(PyObject * self, PyObject *args) -{ - long int port = -2; - char buffer[64], *temp; - PyObject *old; - - /* gets arguments */ - if ((!PyArg_ParseTuple(args, "l", &port)) || (port < -1)) - { - PyErr_SetString(PyExc_TypeError, "set_defport(port), with port " - "(positive integer/-1)."); - return NULL; - } - - /* adjusts value */ - old = pg_default_port; - - if (port != -1) - pg_default_port = PyLong_FromLong(port); - else - { - Py_INCREF(Py_None); - pg_default_port = Py_None; - } - - return old; -} - -#endif /* DEFAULT_VARS */ - -/* List of functions defined in the module */ - -static struct PyMethodDef pg_methods[] = { - {"connect", (PyCFunction) pgconnect, 3},/* connect to a postgres database */ - {"__VERSION__", (PyCFunction) pgconnect, 3}, - -#ifdef DEFAULT_VARS - {"get_defhost", pggetdefhost, 1}, /* gets default host */ - {"set_defhost", pgsetdefhost, 1}, /* sets default host */ - {"get_defbase", pggetdefbase, 1}, /* gets default base */ - {"set_defbase", pgsetdefbase, 1}, /* sets default base */ - {"get_defopt", pggetdefopt, 1}, /* gets default options */ - {"set_defopt", pgsetdefopt, 1}, /* sets default options */ - {"get_deftty", pggetdeftty, 1}, /* gets default debug tty */ - {"set_deftty", pgsetdeftty, 1}, /* sets default debug tty */ - {"get_defport", pggetdefport, 1}, /* gets default port */ - {"set_defport", pgsetdefport, 1}, /* sets default port */ - {"set_defuser", pgsetdefuser, 1}, /* sets default user */ - {"set_defpasswd", pgsetdefpasswd, 1}, /* sets default passwd */ -#endif /* DEFAULT_VARS */ - {NULL, NULL} /* sentinel */ -}; - -static char pg__doc__[] = "Python interface to PostgreSQL DB"; - -/* Initialization function for the module */ -void -init_pg(void) -{ - PyObject *mod, *dict, *v; - - /* Create the module and add the functions */ - mod = Py_InitModule4("_pg", pg_methods, pg__doc__, NULL, PYTHON_API_VERSION); - dict = PyModule_GetDict(mod); - - /* Add some symbolic constants to the module */ - PGError = PyString_FromString("pg.error"); - PyDict_SetItemString(dict, "error", PGError); - - /* Make the version available */ - v = PyString_FromString(PyPgVersion); - PyDict_SetItemString(dict, "version", v); - PyDict_SetItemString(dict, "__version__", v); - Py_DECREF(v); - -#ifdef LARGE_OBJECTS - /* create mode for large objects */ - PyDict_SetItemString(dict, "INV_READ", PyInt_FromLong(INV_READ)); - PyDict_SetItemString(dict, "INV_WRITE", PyInt_FromLong(INV_WRITE)); - - /* position flags for lo_lseek */ - PyDict_SetItemString(dict, "SEEK_SET", PyInt_FromLong(SEEK_SET)); - PyDict_SetItemString(dict, "SEEK_CUR", PyInt_FromLong(SEEK_CUR)); - PyDict_SetItemString(dict, "SEEK_END", PyInt_FromLong(SEEK_END)); -#endif /* LARGE_OBJECTS */ - -#ifdef DEFAULT_VARS - /* prepares default values */ - Py_INCREF(Py_None); pg_default_host = Py_None; - Py_INCREF(Py_None); pg_default_base = Py_None; - Py_INCREF(Py_None); pg_default_opt = Py_None; - Py_INCREF(Py_None); pg_default_port = Py_None; - Py_INCREF(Py_None); pg_default_tty = Py_None; - Py_INCREF(Py_None); pg_default_user = Py_None; - Py_INCREF(Py_None); pg_default_passwd = Py_None; -#endif /* DEFAULT_VARS */ - - /* Check for errors */ - if (PyErr_Occurred()) - Py_FatalError("can't initialize module _pg"); -} |