X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fsettings.c;h=13512cc03242f7b7d7d78e6ebf2d0369bb9f13c3;hb=60a5a715819916ddc5df53451221436995a71356;hp=a5fbfdecbda658eed3b16e94be686c62423cd485;hpb=add3ba666ddc4f88fbf0934184c82e35c0787795;p=pspp

diff --git a/src/data/settings.c b/src/data/settings.c
index a5fbfdecbd..13512cc032 100644
--- a/src/data/settings.c
+++ b/src/data/settings.c
@@ -15,26 +15,27 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 #include <config.h>
-#include "settings.h"
+
+#include "data/settings.h"
+
 #include <assert.h>
 #include <stdlib.h>
 #include <time.h>
-#include "format.h"
-#include "value.h"
-#include "xalloc.h"
-#include <data/case.h>
-#include <libpspp/i18n.h>
-#include <libpspp/integer-format.h>
-#include <libpspp/message.h>
 
-#include "error.h"
-#include "minmax.h"
+#include "data/case.h"
+#include "data/format.h"
+#include "data/value.h"
+#include "libpspp/i18n.h"
+#include "libpspp/integer-format.h"
+#include "libpspp/message.h"
+
+#include "gl/error.h"
+#include "gl/minmax.h"
+#include "gl/xalloc.h"
 
 #include "gettext.h"
 #define _(msgid) gettext (msgid)
 
-static int global_algorithm = ENHANCED;
-
 struct settings
 {
   /* Integer format used for IB and PIB input. */
@@ -70,7 +71,7 @@ struct settings
   bool testing_mode;
 
   int cmd_algorithm;
-  int *algorithm;
+  int global_algorithm;
   int syntax;
 
   struct fmt_settings *styles;
@@ -110,7 +111,7 @@ static struct settings the_settings = {
   {FMT_F, 8, 2},                /* default_format */
   false,                        /* testing_mode */
   ENHANCED,                     /* cmd_algorithm */
-  &global_algorithm,            /* algorithm */
+  ENHANCED,                     /* global_algorithm */
   ENHANCED,                     /* syntax */
   NULL,                         /* styles */
 
@@ -121,6 +122,7 @@ static struct settings the_settings = {
    SETTINGS_DEVICE_LISTING | SETTINGS_DEVICE_TERMINAL}
 };
 
+/* Initializes the settings module. */
 void
 settings_init (void)
 {
@@ -130,10 +132,48 @@ settings_init (void)
   settings_set_decimal_char (get_system_decimal ());
 }
 
+/* Cleans up the settings module. */
 void
 settings_done (void)
 {
-  fmt_settings_destroy (the_settings.styles);
+  settings_destroy (&the_settings);
+}
+
+static void
+settings_copy (struct settings *dst, const struct settings *src)
+{
+  *dst = *src;
+  dst->styles = fmt_settings_clone (src->styles);
+}
+
+/* Returns a copy of the current settings. */
+struct settings *
+settings_get (void)
+{
+  struct settings *s = xmalloc (sizeof *s);
+  settings_copy (s, &the_settings);
+  return s;
+}
+
+/* Replaces the current settings by those in S.  The caller retains ownership
+   of S. */
+void
+settings_set (const struct settings *s)
+{
+  settings_destroy (&the_settings);
+  settings_copy (&the_settings, s);
+}
+
+/* Destroys S. */
+void
+settings_destroy (struct settings *s)
+{
+  if (s != NULL)
+    {
+      fmt_settings_destroy (s->styles);
+      if (s != &the_settings)
+        free (s);
+    }
 }
 
 /* Returns the floating-point format used for RB and RBHEX
@@ -478,14 +518,14 @@ settings_set_testing_mode ( bool testing_mode)
 enum behavior_mode
 settings_get_algorithm (void)
 {
-  return *the_settings.algorithm;
+  return the_settings.cmd_algorithm;
 }
 
 /* Set the algorithm option globally. */
 void
 settings_set_algorithm (enum behavior_mode mode)
 {
-  global_algorithm = mode;
+  the_settings.global_algorithm = the_settings.cmd_algorithm = mode;
 }
 
 /* Set the algorithm option for this command only */
@@ -493,14 +533,13 @@ void
 settings_set_cmd_algorithm ( enum behavior_mode mode)
 {
   the_settings.cmd_algorithm = mode;
-  the_settings.algorithm = &the_settings.cmd_algorithm;
 }
 
 /* Unset the algorithm option for this command */
 void
 unset_cmd_algorithm (void)
 {
-  the_settings.algorithm = &global_algorithm;
+  the_settings.cmd_algorithm = the_settings.global_algorithm;
 }
 
 /* Get the current syntax setting */