moving from https://github.com/perberos/mate-desktop-environment

1 files changed, 389 insertions, 0 deletions

diff --git a/plugins/housekeeping/gsd-housekeeping-manager.c b/plugins/housekeeping/gsd-housekeeping-manager.c
new file mode 100644
index 0000000..bbdea2c
--- /dev/null
+++ b/plugins/housekeeping/gsd-housekeeping-manager.c
@@ -0,0 +1,389 @@
+/*
+ * Copyright (C) 2008 Michael J. Chudobiak <[email protected]>
+ *
+ * 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 of the License, 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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "config.h"
+
+#include <mateconf/mateconf-client.h>
+#include <gio/gio.h>
+#include <glib/gstdio.h>
+#include <string.h>
+
+#include "mate-settings-profile.h"
+#include "gsd-housekeeping-manager.h"
+#include "gsd-disk-space.h"
+
+
+/* General */
+#define INTERVAL_ONCE_A_DAY 24*60*60
+#define INTERVAL_TWO_MINUTES 2*60
+
+
+/* Thumbnail cleaner */
+#define MATECONF_THUMB_AGE "/desktop/mate/thumbnail_cache/maximum_age"
+#define DEFAULT_MAX_AGE_IN_DAYS 180
+#define MATECONF_THUMB_SIZE "/desktop/mate/thumbnail_cache/maximum_size"
+#define DEFAULT_MAX_SIZE_IN_MB 512
+#define MATECONF_THUMB_BINDING_DIR "/desktop/mate/thumbnail_cache"
+
+
+struct GsdHousekeepingManagerPrivate {
+        guint long_term_cb;
+        guint short_term_cb;
+        guint mateconf_notify;
+};
+
+
+#define GSD_HOUSEKEEPING_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GSD_TYPE_HOUSEKEEPING_MANAGER, GsdHousekeepingManagerPrivate))
+
+static void     gsd_housekeeping_manager_class_init  (GsdHousekeepingManagerClass *klass);
+static void     gsd_housekeeping_manager_init        (GsdHousekeepingManager      *housekeeping_manager);
+
+G_DEFINE_TYPE (GsdHousekeepingManager, gsd_housekeeping_manager, G_TYPE_OBJECT)
+
+static gpointer manager_object = NULL;
+
+
+typedef struct {
+        glong now;
+        glong max_age;
+        goffset total_size;
+        goffset max_size;
+} PurgeData;
+
+
+typedef struct {
+        time_t  mtime;
+        char   *path;
+        glong   size;
+} ThumbData;
+
+
+static void
+thumb_data_free (gpointer data)
+{
+        ThumbData *info = data;
+
+        if (info) {
+                g_free (info->path);
+                g_free (info);
+        }
+}
+
+
+static GList *
+read_dir_for_purge (const char *path, GList *files)
+{
+        GFile           *read_path;
+        GFileEnumerator *enum_dir;
+
+        read_path = g_file_new_for_path (path);
+        enum_dir = g_file_enumerate_children (read_path,
+                                              G_FILE_ATTRIBUTE_STANDARD_NAME ","
+                                              G_FILE_ATTRIBUTE_TIME_MODIFIED ","
+                                              G_FILE_ATTRIBUTE_STANDARD_SIZE,
+                                              G_FILE_QUERY_INFO_NONE,
+                                              NULL,
+                                              NULL);
+
+        if (enum_dir != NULL) {
+                GFileInfo *info;
+                while ((info = g_file_enumerator_next_file (enum_dir, NULL, NULL)) != NULL) {
+                        const char *name;
+                        name = g_file_info_get_name (info);
+
+                        if (strlen (name) == 36 && strcmp (name + 32, ".png") == 0) {
+                                ThumbData *td;
+                                GFile     *entry;
+                                char      *entry_path;
+                                GTimeVal   mod_time;
+
+                                entry = g_file_get_child (read_path, name);
+                                entry_path = g_file_get_path (entry);
+                                g_object_unref (entry);
+
+                                g_file_info_get_modification_time (info, &mod_time);
+
+                                td = g_new0 (ThumbData, 1);
+                                td->path = entry_path;
+                                td->mtime = mod_time.tv_sec;
+                                td->size = g_file_info_get_size (info);
+
+                                files = g_list_prepend (files, td);
+                        }
+                        g_object_unref (info);
+                }
+                g_object_unref (enum_dir);
+        }
+        g_object_unref (read_path);
+
+        return files;
+}
+
+
+static void
+purge_old_thumbnails (ThumbData *info, PurgeData *purge_data)
+{
+        if ((purge_data->now - info->mtime) > purge_data->max_age) {
+                g_unlink (info->path);
+                info->size = 0;
+        } else {
+                purge_data->total_size += info->size;
+        }
+}
+
+
+static int
+sort_file_mtime (ThumbData *file1, ThumbData *file2)
+{
+        return file1->mtime - file2->mtime;
+}
+
+
+static int
+get_mateconf_int_with_default (char *key, int default_value)
+{
+        /* If the key is unset, we use a non-zero default value.
+           A zero value corresponds to an extra-paranoid level
+           of cleaning - it deletes all files. We don't want that
+           as a default condition. */
+
+        MateConfValue  *value;
+        MateConfClient *client;
+        int          res;
+
+        client = mateconf_client_get_default ();
+        value = mateconf_client_get (client, key, NULL);
+        g_object_unref (client);
+
+        if (value == NULL || value->type != MATECONF_VALUE_INT) {
+                res = default_value;
+        } else {
+                res = mateconf_value_get_int (value);
+                mateconf_value_free (value);
+        }
+
+        return res;
+}
+
+
+static void
+purge_thumbnail_cache (void)
+{
+
+        char      *path;
+        GList     *files;
+        PurgeData  purge_data;
+        GTimeVal   current_time;
+
+        g_debug ("housekeeping: checking thumbnail cache size and freshness");
+
+        path = g_build_filename (g_get_home_dir (),
+                                 ".thumbnails",
+                                 "normal",
+                                 NULL);
+        files = read_dir_for_purge (path, NULL);
+        g_free (path);
+
+        path = g_build_filename (g_get_home_dir (),
+                                 ".thumbnails",
+                                 "large",
+                                 NULL);
+        files = read_dir_for_purge (path, files);
+        g_free (path);
+
+        path = g_build_filename (g_get_home_dir (),
+                                 ".thumbnails",
+                                 "fail",
+                                 "mate-thumbnail-factory",
+                                 NULL);
+        files = read_dir_for_purge (path, files);
+        g_free (path);
+
+        g_get_current_time (&current_time);
+
+        purge_data.now = current_time.tv_sec;
+        purge_data.max_age = get_mateconf_int_with_default (MATECONF_THUMB_AGE, DEFAULT_MAX_AGE_IN_DAYS) * 24 * 60 * 60;
+        purge_data.max_size = get_mateconf_int_with_default (MATECONF_THUMB_SIZE, DEFAULT_MAX_SIZE_IN_MB) * 1024 * 1024;
+        purge_data.total_size = 0;
+
+        if (purge_data.max_age >= 0)
+                g_list_foreach (files, (GFunc) purge_old_thumbnails, &purge_data);
+
+        if ((purge_data.total_size > purge_data.max_size) && (purge_data.max_size >= 0)) {
+                GList *scan;
+                files = g_list_sort (files, (GCompareFunc) sort_file_mtime);
+                for (scan = files; scan && (purge_data.total_size > purge_data.max_size); scan = scan->next) {
+                        ThumbData *info = scan->data;
+                        g_unlink (info->path);
+                        purge_data.total_size -= info->size;
+                }
+        }
+
+        g_list_foreach (files, (GFunc) thumb_data_free, NULL);
+        g_list_free (files);
+}
+
+
+static gboolean
+do_cleanup (GsdHousekeepingManager *manager)
+{
+        purge_thumbnail_cache ();
+        return TRUE;
+}
+
+
+static gboolean
+do_cleanup_once (GsdHousekeepingManager *manager)
+{
+        do_cleanup (manager);
+        manager->priv->short_term_cb = 0;
+        return FALSE;
+}
+
+
+static void
+do_cleanup_soon (GsdHousekeepingManager *manager)
+{
+        if (manager->priv->short_term_cb == 0) {
+                g_debug ("housekeeping: will tidy up in 2 minutes");
+                manager->priv->short_term_cb = g_timeout_add_seconds (INTERVAL_TWO_MINUTES,
+                                               (GSourceFunc) do_cleanup_once,
+                                               manager);
+        }
+}
+
+
+static void
+bindings_callback (MateConfClient            *client,
+                   guint                   cnxn_id,
+                   MateConfEntry             *entry,
+                   GsdHousekeepingManager *manager)
+{
+        do_cleanup_soon (manager);
+}
+
+
+static guint
+register_config_callback (GsdHousekeepingManager *manager,
+                          const char             *path,
+                          MateConfClientNotifyFunc   func)
+{
+        MateConfClient *client = mateconf_client_get_default ();
+        guint notify;
+
+        mateconf_client_add_dir (client, path, MATECONF_CLIENT_PRELOAD_NONE, NULL);
+        notify = mateconf_client_notify_add (client, path, func, manager, NULL, NULL);
+
+        g_object_unref (client);
+
+        return notify;
+}
+
+
+gboolean
+gsd_housekeeping_manager_start (GsdHousekeepingManager *manager,
+                                GError                **error)
+{
+        g_debug ("Starting housekeeping manager");
+        mate_settings_profile_start (NULL);
+
+        gsd_ldsm_setup (FALSE);
+
+        manager->priv->mateconf_notify = register_config_callback (manager,
+                                      MATECONF_THUMB_BINDING_DIR,
+                                      (MateConfClientNotifyFunc) bindings_callback);
+
+        /* Clean once, a few minutes after start-up */
+        do_cleanup_soon (manager);
+
+        /* Clean periodically, on a daily basis. */
+        manager->priv->long_term_cb = g_timeout_add_seconds (INTERVAL_ONCE_A_DAY,
+                                      (GSourceFunc) do_cleanup,
+                                      manager);
+        mate_settings_profile_end (NULL);
+
+        return TRUE;
+}
+
+
+void
+gsd_housekeeping_manager_stop (GsdHousekeepingManager *manager)
+{
+        GsdHousekeepingManagerPrivate *p = manager->priv;
+
+        g_debug ("Stopping housekeeping manager");
+
+        if (p->mateconf_notify != 0) {
+                MateConfClient *client = mateconf_client_get_default ();
+
+                mateconf_client_remove_dir (client, MATECONF_THUMB_BINDING_DIR, NULL);
+                mateconf_client_notify_remove (client, p->mateconf_notify);
+
+                g_object_unref (client);
+                p->mateconf_notify = 0;
+        }
+
+        if (p->short_term_cb) {
+                g_source_remove (p->short_term_cb);
+                p->short_term_cb = 0;
+        }
+
+        if (p->long_term_cb) {
+                g_source_remove (p->long_term_cb);
+                p->long_term_cb = 0;
+
+                /* Do a clean-up on shutdown if and only if the size or age
+                   limits have been set to paranoid levels (zero) */
+                if ((get_mateconf_int_with_default (MATECONF_THUMB_AGE, DEFAULT_MAX_AGE_IN_DAYS) == 0) ||
+                    (get_mateconf_int_with_default (MATECONF_THUMB_SIZE, DEFAULT_MAX_SIZE_IN_MB) == 0)) {
+                        do_cleanup (manager);
+                }
+        }
+
+        gsd_ldsm_clean ();
+}
+
+
+static void
+gsd_housekeeping_manager_class_init (GsdHousekeepingManagerClass *klass)
+{
+        g_type_class_add_private (klass, sizeof (GsdHousekeepingManagerPrivate));
+}
+
+
+static void
+gsd_housekeeping_manager_init (GsdHousekeepingManager *manager)
+{
+        manager->priv = GSD_HOUSEKEEPING_MANAGER_GET_PRIVATE (manager);
+}
+
+
+GsdHousekeepingManager *
+gsd_housekeeping_manager_new (void)
+{
+        if (manager_object != NULL) {
+                g_object_ref (manager_object);
+        } else {
+                manager_object = g_object_new (GSD_TYPE_HOUSEKEEPING_MANAGER, NULL);
+                g_object_add_weak_pointer (manager_object,
+                                           (gpointer *) &manager_object);
+        }
+
+        return GSD_HOUSEKEEPING_MANAGER (manager_object);
+}