/* PSPP - a program for statistical analysis.
- Copyright (C) 2007, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2010, 2012, 2013 Free Software Foundation, Inc.
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
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
+#include <stdbool.h>
#include "data/file-name.h"
#include "libpspp/cast.h"
+#include "libpspp/message.h"
#include "libpspp/str.h"
#include "output/driver-provider.h"
-#include "output/message-item.h"
-#include "output/text-item.h"
+#include "output/output-item.h"
-#include "gl/error.h"
#include "gl/fwriteerror.h"
#include "gl/xalloc.h"
{
struct output_driver driver;
FILE *file;
- char *command_name;
+
+ /* Name of journal file. */
+ char *file_name;
+ bool destroyed;
};
static const struct output_driver_class journal_class;
/* Journal driver, if journaling is enabled. */
-static struct journal_driver *journal;
+static struct journal_driver journal;
-/* Name of journal file. */
-static char *journal_file_name;
static struct journal_driver *
journal_driver_cast (struct output_driver *driver)
static void
journal_close (void)
{
- if (journal != NULL && journal->file != NULL)
+ if (journal.file != NULL)
{
- if (fwriteerror (journal->file))
- error (0, errno, _("error writing \"%s\""), journal_file_name);
- journal->file = NULL;
- }
+ if (fwriteerror (journal.file))
+ msg_error (errno, _("error writing output file `%s'"),
+ journal.file_name);
+
+ }
+ journal.file = NULL;
}
static void
{
struct journal_driver *j = journal_driver_cast (driver);
- journal_close ();
- free (j->command_name);
- free (j);
+ if (!j->destroyed)
+ journal_close ();
- journal = NULL;
+ j->destroyed = true;
}
static void
-journal_output (struct journal_driver *j, const char *s)
+journal_output (struct journal_driver *j, char *s)
{
- if (j->file == NULL)
+ if (j->file)
{
- j->file = fopen (journal_file_name, "a");
- if (j->file == NULL)
- {
- error (0, errno, _("%s: open failed"), journal_file_name);
- output_driver_destroy (&j->driver);
- return;
- }
+ fprintf (j->file, "%s\n", s);
+
+ /* Flush the journal in case the syntax we're about to write
+ causes a crash. Having the syntax already written to disk
+ makes postmortem analysis of the problem possible. */
+ fflush (j->file);
}
- fprintf (j->file, "%s\n", s);
+ free (s);
}
static void
{
struct journal_driver *j = journal_driver_cast (driver);
- output_driver_track_current_command (item, &j->command_name);
-
- if (is_text_item (item))
+ switch (item->type)
{
- const struct text_item *text_item = to_text_item (item);
- enum text_item_type type = text_item_get_type (text_item);
-
- if (type == TEXT_ITEM_SYNTAX)
- journal_output (j, text_item_get_text (text_item));
- }
- else if (is_message_item (item))
- {
- const struct message_item *message_item = to_message_item (item);
- const struct msg *msg = message_item_get_msg (message_item);
- char *s = msg_to_string (msg, j->command_name);
- journal_output (j, s);
- free (s);
+ case OUTPUT_ITEM_MESSAGE:
+ journal_output (j, msg_to_string (item->message));
+ break;
+
+ case OUTPUT_ITEM_TEXT:
+ if (item->text.subtype == TEXT_ITEM_SYNTAX)
+ journal_output (j, text_item_get_plain_text (item));
+ break;
+
+ case OUTPUT_ITEM_GROUP:
+ for (size_t i = 0; i < item->group.n_children; i++)
+ journal_submit (driver, item->group.children[i]);
+ break;
+
+ case OUTPUT_ITEM_CHART:
+ case OUTPUT_ITEM_IMAGE:
+ case OUTPUT_ITEM_PAGE_BREAK:
+ case OUTPUT_ITEM_PAGE_SETUP:
+ case OUTPUT_ITEM_TABLE:
+ break;
}
}
static const struct output_driver_class journal_class =
{
- "journal",
- journal_destroy,
- journal_submit,
- NULL /* flush */
+ .name = "journal",
+ .destroy = journal_destroy,
+ .submit = journal_submit,
};
\f
+
/* Enables journaling. */
void
-journal_enable (void)
+journal_init (void)
{
- if (journal == NULL)
- {
- /* If no journal file name is configured, use the default. */
- if (journal_file_name == NULL)
- {
- const char *output_path = default_output_path ();
- journal_file_name = xasprintf ("%s%s", output_path, "pspp.jnl");
- }
-
- /* Create journal driver. */
- journal = xzalloc (sizeof *journal);
- output_driver_init (&journal->driver, &journal_class, "journal",
- SETTINGS_DEVICE_UNFILTERED);
- journal->file = NULL;
- journal->command_name = NULL;
-
- /* Register journal driver. */
- output_driver_register (&journal->driver);
- }
+ /* Create journal driver. */
+ output_driver_init (&journal.driver, &journal_class, "journal",
+ SETTINGS_DEVICE_UNFILTERED);
+ journal.file = NULL;
+
+ /* Register journal driver. */
+ output_driver_register (&journal.driver);
+
+ journal_enable ();
+ journal.destroyed = false;
}
/* Disables journaling. */
void
journal_disable (void)
{
- if (journal != NULL)
- output_driver_destroy (&journal->driver);
+ journal_close ();
+}
+
+
+/* Enable journaling. */
+void
+journal_enable (void)
+{
+ if (journal.file == NULL)
+ {
+ journal.file = fopen (journal_get_file_name (), "a");
+ if (journal.file == NULL)
+ {
+ msg_error (errno, _("error opening output file `%s'"),
+ journal_get_file_name ());
+ journal_close ();
+ }
+ }
+}
+
+
+/* Returns true if journaling is enabled, false otherwise. */
+bool
+journal_is_enabled (void)
+{
+ return journal.file != NULL ;
}
/* Sets the name of the journal file to FILE_NAME. */
journal_set_file_name (const char *file_name)
{
journal_close ();
- free (journal_file_name);
- journal_file_name = xstrdup (file_name);
+ free (journal.file_name);
+ journal.file_name = xstrdup (file_name);
+}
+
+/* Returns the name of the journal file. The caller must not modify or free
+ the returned string. */
+const char *
+journal_get_file_name (void)
+{
+ if (journal.file_name == NULL)
+ {
+ const char *output_path = default_output_path ();
+ journal.file_name = xasprintf ("%s%s", output_path, "pspp.jnl");
+ }
+ return journal.file_name;
}
projects / pspp / blobdiff