1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2010 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #include "output/msglog.h"
26 #include "data/file-name.h"
27 #include "data/file-handle-def.h"
28 #include "data/settings.h"
29 #include "libpspp/cast.h"
30 #include "libpspp/message.h"
31 #include "output/driver-provider.h"
32 #include "output/output-item.h"
34 #include "gl/fwriteerror.h"
35 #include "gl/xalloc.h"
38 #define _(msgid) gettext (msgid)
42 struct output_driver driver;
44 struct file_handle *handle;
47 static const struct output_driver_class msglog_class;
49 static struct msglog_driver *
50 msglog_driver_cast (struct output_driver *driver)
52 assert (driver->class == &msglog_class);
53 return UP_CAST (driver, struct msglog_driver, driver);
56 struct output_driver *
57 msglog_create (const char *file_name)
59 enum settings_output_devices type;
62 struct file_handle *handle = fh_create_file (NULL, file_name, NULL, fh_default_properties ());
64 file = fn_open (handle, "w");
67 msg_error (errno, _("error opening output file `%s'"), file_name);
71 type = (!strcmp (file_name, "-") || isatty (fileno (file))
72 ? SETTINGS_DEVICE_TERMINAL
73 : SETTINGS_DEVICE_UNFILTERED);
75 struct msglog_driver *ml = xmalloc (sizeof *ml);
76 *ml = (struct msglog_driver) {
78 .class = &msglog_class,
79 .name = xstrdup (file_name),
85 output_driver_register (&ml->driver);
90 msglog_destroy (struct output_driver *driver)
92 struct msglog_driver *ml = msglog_driver_cast (driver);
94 fn_close (ml->handle, ml->file);
95 fh_unref (ml->handle);
100 msglog_submit (struct output_driver *driver, const struct output_item *item)
102 struct msglog_driver *ml = msglog_driver_cast (driver);
104 if (item->type == OUTPUT_ITEM_MESSAGE)
106 char *s = msg_to_string (item->message);
107 fprintf (ml->file, "%s\n", s);
112 static const struct output_driver_class msglog_class =
115 .destroy = msglog_destroy,
116 .submit = msglog_submit,