mate-dmi: add new api to get dmi infodev-dmi

1 files changed, 163 insertions, 0 deletions

diff --git a/libmate-desktop/mate-dmi.c b/libmate-desktop/mate-dmi.c
new file mode 100644
index 0000000..085620f
--- /dev/null
+++ b/libmate-desktop/mate-dmi.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2009-2011 Richard Hughes <[email protected]>
+ *
+ * Licensed under the GNU General Public License Version 2
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#define MATE_DESKTOP_USE_UNSTABLE_API
+
+#include <glib-object.h>
+#include <math.h>
+#include <string.h>
+#include <gio/gio.h>
+#include <stdlib.h>
+
+#include "mate-dmi.h"
+
+static void     mate_dmi_finalize        (GObject     *object);
+
+struct _MateDmi
+{
+    GObject    parent;
+    gchar      *name;
+    gchar      *version;
+    gchar      *vendor;
+};
+
+static gpointer mate_dmi_object = NULL;
+
+G_DEFINE_TYPE (MateDmi, mate_dmi, G_TYPE_OBJECT)
+
+static gchar * mate_dmi_get_from_filename (const gchar *filename)
+{
+    gboolean ret;
+    GError *error = NULL;
+    gchar *data = NULL;
+
+    /* get the contents */
+    ret = g_file_get_contents (filename, &data, NULL, &error);
+    if (!ret) {
+        if (!g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT))
+            g_warning ("failed to get contents of %s: %s", filename, error->message);
+        g_error_free (error);
+    }
+
+    /* process the random chars and trailing spaces */
+    if (data != NULL) {
+        g_strdelimit (data, "\t_", ' ');
+        g_strdelimit (data, "\n\r", '\0');
+        g_strchomp (data);
+    }
+
+    /* don't return an empty string */
+    if (data != NULL && data[0] == '\0') {
+        g_free (data);
+        data = NULL;
+    }
+
+    return data;
+}
+
+static gchar * mate_dmi_get_from_filenames (const gchar * const * filenames)
+{
+    guint i;
+    gchar *tmp = NULL;
+
+    /* try each one in preference order */
+    for (i = 0; filenames[i] != NULL; i++) {
+        tmp = mate_dmi_get_from_filename (filenames[i]);
+        if (tmp != NULL)
+            break;
+    }
+    return tmp;
+}
+
+const gchar * mate_dmi_get_name (MateDmi *dmi)
+{
+    g_return_val_if_fail (MATE_IS_DMI (dmi), NULL);
+    return dmi->name;
+}
+
+const gchar * mate_dmi_get_version (MateDmi *dmi)
+{
+    g_return_val_if_fail (MATE_IS_DMI (dmi), NULL);
+    return dmi->version;
+}
+
+const gchar * mate_dmi_get_vendor (MateDmi *dmi)
+{
+    g_return_val_if_fail (MATE_IS_DMI (dmi), NULL);
+    return dmi->vendor;
+}
+
+static void mate_dmi_class_init (MateDmiClass *klass)
+{
+    GObjectClass *object_class = G_OBJECT_CLASS (klass);
+    object_class->finalize = mate_dmi_finalize;
+}
+
+static void mate_dmi_init (MateDmi *dmi)
+{
+#if defined(__linux__)
+    const gchar *sysfs_name[] = {
+        "/sys/class/dmi/id/product_name",
+        "/sys/class/dmi/id/board_name",
+        NULL};
+    const gchar *sysfs_version[] = {
+        "/sys/class/dmi/id/product_version",
+        "/sys/class/dmi/id/chassis_version",
+        "/sys/class/dmi/id/board_version",
+        NULL};
+    const gchar *sysfs_vendor[] = {
+        "/sys/class/dmi/id/sys_vendor",
+        "/sys/class/dmi/id/chassis_vendor",
+        "/sys/class/dmi/id/board_vendor",
+        NULL};
+#else
+#warning Please add dmi support for your OS
+    const gchar *sysfs_name[] = { NULL };
+    const gchar *sysfs_version[] = { NULL };
+    const gchar *sysfs_vendor[] = { NULL };
+#endif
+
+    /* get all the possible data now */
+    dmi->name = mate_dmi_get_from_filenames (sysfs_name);
+    dmi->version = mate_dmi_get_from_filenames (sysfs_version);
+    dmi->vendor = mate_dmi_get_from_filenames (sysfs_vendor);
+}
+
+static void mate_dmi_finalize (GObject *object)
+{
+    MateDmi *dmi = MATE_DMI (object);
+
+    g_free (dmi->name);
+    g_free (dmi->version);
+    g_free (dmi->vendor);
+
+    G_OBJECT_CLASS (mate_dmi_parent_class)->finalize (object);
+}
+
+MateDmi* mate_dmi_new (void)
+{
+    if (mate_dmi_object != NULL) {
+        g_object_ref (mate_dmi_object);
+    } else {
+        mate_dmi_object = g_object_new (MATE_TYPE_DMI, NULL);
+        g_object_add_weak_pointer (mate_dmi_object, &mate_dmi_object);
+    }
+    return MATE_DMI (mate_dmi_object);
+}