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| author | Federico Di Gregorio <fog@initd.org> | 2006-09-01 16:44:07 +0000 |
|---|---|---|
| committer | Federico Di Gregorio <fog@initd.org> | 2006-09-01 16:44:07 +0000 |
| commit | 0b9d13455d8d10a0b51e8b8346648e12bc9b04de (patch) | |
| tree | fca04d9c54c1987b4ff6b0fc05986a407ed814be /psycopg/lobject_int.c | |
| parent | b8f3cef62f548716a2023e7e36c7a6f4d4058558 (diff) | |
| download | psycopg2-0b9d13455d8d10a0b51e8b8346648e12bc9b04de.tar.gz | |
Missing file.
Diffstat (limited to 'psycopg/lobject_int.c')
| -rw-r--r-- | psycopg/lobject_int.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/psycopg/lobject_int.c b/psycopg/lobject_int.c new file mode 100644 index 0000000..b0897d8 --- /dev/null +++ b/psycopg/lobject_int.c @@ -0,0 +1,84 @@ +/* lobject_int.c - code used by the lobject object + * + * Copyright (C) 2006 Federico Di Gregorio <fog@debian.org> + * + * This file is part of psycopg. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <Python.h> +#include <string.h> + +#define PSYCOPG_MODULE +#include "psycopg/config.h" +#include "psycopg/psycopg.h" +#include "psycopg/connection.h" +#include "psycopg/lobject.h" +#include "psycopg/pqpath.h" + +#ifdef PSYCOPG_EXTENSIONS + +int +lobject_open(lobjectObject *self, connectionObject *conn, + Oid oid, int mode, Oid new_oid, char *new_file) +{ + Py_BEGIN_ALLOW_THREADS; + pthread_mutex_lock(&(self->conn->lock)); + + pq_begin(self->conn); + + /* if the oid is InvalidOid we create a new lob before opening it + or we import a file from the FS, depending on the value of + new_name */ + if (oid == InvalidOid) { + if (new_file) + self->oid = lo_import(self->conn->pgconn, new_file); + else + self->oid = lo_create(self->conn->pgconn, new_oid); + + Dprintf("lobject_open: large object created with oid = %d", + self->oid); + + if (self->oid == InvalidOid) goto end; + + mode = INV_WRITE; + } + else { + self->oid = oid; + if (mode == 0) mode = INV_READ; + } + + /* if the oid is a real one we try to open with the given mode */ + self->fd = lo_open(self->conn->pgconn, self->oid, mode); + Dprintf("lobject_open: large object opened with fd = %d", + self->fd); + + end: + pthread_mutex_unlock(&(self->conn->lock)); + Py_END_ALLOW_THREADS; + + /* here we check for errors before returning 0 */ + if (self->fd == -1 || self->oid == InvalidOid) { + pq_raise(conn, NULL, NULL, NULL); + return -1; + } + else { + return 0; + } +} + +#endif + |
