From cf74a8d6cb71b6043bc32b58d3b98750e45fd767 Mon Sep 17 00:00:00 2001
From: David Zeuthen <davidz@redhat.com>
Date: Fri, 14 Oct 2011 13:31:19 -0400
Subject: [PATCH] Export Time{,Media}Detected properties on UDisksDrive

This is used to e.g. sort the returned items in the GVfs udisks2
backend.

Signed-off-by: David Zeuthen <davidz@redhat.com>
---
 data/org.freedesktop.UDisks2.xml | 37 +++++++++++++++++++---------
 src/udiskslinuxdrive.c           | 52 +++++++++++++++++++++++++++-------------
 2 files changed, 61 insertions(+), 28 deletions(-)

diff --git a/data/org.freedesktop.UDisks2.xml b/data/org.freedesktop.UDisks2.xml
index 00bf7bd..a93b669 100644
--- a/data/org.freedesktop.UDisks2.xml
+++ b/data/org.freedesktop.UDisks2.xml
@@ -149,6 +149,16 @@
     -->
     <property name="Size" type="t" access="read"/>
 
+    <!-- TimeDetected: The time the drive was first detected.
+         This is expressed in micro-seconds since the Epoch Jan 1, 1970 0:00 UTC.
+    -->
+    <property name="TimeDetected" type="t" access="read"/>
+
+    <!-- TimeMediaDetected: The earliest time media was last detected or 0 if media is not available.
+         This is expressed in micro-seconds since the Epoch Jan 1, 1970 0:00 UTC.
+    -->
+    <property name="TimeMediaDetected" type="t" access="read"/>
+
     <!-- Optical: %TRUE if the drive contains an optical disc. -->
     <property name="Optical" type="b" access="read"/>
 
@@ -426,6 +436,17 @@
   <interface name="org.freedesktop.UDisks2.Block">
     <!-- Device: The special device file for the block device e.g. <filename>/dev/sda2</filename>. -->
     <property name="Device" type="ay" access="read"/>
+
+    <!-- PreferredDevice:
+         The special device file to present in the UI instead of the value
+         of the #org.freedesktop.UDisks2.Block:Device property.
+
+         For example this could be
+         e.g. <filename>/dev/mapper/mpathk</filename> for a multipath
+         device with special device file <filename>/dev/dm-9</filename>.
+    -->
+    <property name="PreferredDevice" type="ay" access="read"/>
+
     <!-- Symlinks:
 
          Known symlinks in <filename>/dev</filename> that points to
@@ -438,22 +459,16 @@
          <filename>/dev/disk/by-id/wwn-0x5001517387d61905</filename>.
     -->
     <property name="Symlinks" type="aay" access="read"/>
+
+    <!-- Size: The size of the block device. -->
+    <property name="Size" type="t" access="read"/>
+
     <!-- Major: The major number of the device. -->
     <property name="Major" type="x" access="read"/>
+
     <!-- Minor: The minor number of the device. -->
     <property name="Minor" type="x" access="read"/>
-    <!-- Size: The size of the block device. -->
-    <property name="Size" type="t" access="read"/>
 
-    <!-- PreferredDevice:
-         The special device file to present in the UI instead of the value
-         of the #org.freedesktop.UDisks2.Block:Device property.
-
-         For example this could be
-         e.g. <filename>/dev/mapper/mpathk</filename> for a multipath
-         device with special device file <filename>/dev/dm-9</filename>.
-    -->
-    <property name="PreferredDevice" type="ay" access="read"/>
 
     <!-- Drive:
          The #org.freedesktop.UDisks2.Drive object that the block device
diff --git a/src/udiskslinuxdrive.c b/src/udiskslinuxdrive.c
index 0a77ae3..3534c33 100644
--- a/src/udiskslinuxdrive.c
+++ b/src/udiskslinuxdrive.c
@@ -60,6 +60,9 @@ typedef struct _UDisksLinuxDriveClass   UDisksLinuxDriveClass;
 struct _UDisksLinuxDrive
 {
   UDisksDriveSkeleton parent_instance;
+
+  gint64 time_detected;
+  gint64 time_media_detected;
 };
 
 struct _UDisksLinuxDriveClass
@@ -323,11 +326,16 @@ udisks_linux_drive_update (UDisksLinuxDrive       *drive,
   guint64 size;
   gboolean media_available;
   gboolean media_change_detected;
+  gboolean is_pc_floppy_drive = FALSE;
 
   device = udisks_linux_drive_object_get_device (object, TRUE /* get_hw */);
   if (device == NULL)
     goto out;
 
+  if (g_udev_device_get_property_as_boolean (device, "ID_DRIVE_FLOPPY") ||
+      g_str_has_prefix (g_udev_device_get_name (device), "fd"))
+    is_pc_floppy_drive = TRUE;
+
   /* this is the _almost_ the same for both ATA and SCSI devices (cf. udev's ata_id and scsi_id)
    * but we special case since there are subtle differences...
    */
@@ -419,7 +427,7 @@ udisks_linux_drive_update (UDisksLinuxDrive       *drive,
               udisks_drive_set_vendor (iface, vendor);
             }
           /* workaround for missing ID_VENDOR for floppy drives */
-          else if (g_str_has_prefix (name, "fd"))
+          else if (is_pc_floppy_drive)
             {
               udisks_drive_set_vendor (iface, "");
             }
@@ -482,27 +490,37 @@ udisks_linux_drive_update (UDisksLinuxDrive       *drive,
   set_rotation_rate (iface, device);
   set_connection_bus (iface, device);
 
-#if 0
-  /* This ensures that devices are shown in the order they are detected */
-  sort_key = g_strdup_printf ("%" G_GUINT64_FORMAT,
-                              time (NULL) * G_USEC_PER_SEC - g_udev_device_get_usec_since_initialized (device));
-#else
   /* need to use this lame hack until libudev's get_usec_since_initialized() works
    * for devices received via the netlink socket
    */
-  {
-    GUdevClient *client;
-    GUdevDevice *ns_device;
-    client = g_udev_client_new (NULL);
-    ns_device =  g_udev_client_query_by_sysfs_path (client, g_udev_device_get_sysfs_path (device));
-    sort_key = g_strdup_printf ("%" G_GUINT64_FORMAT,
-                                time (NULL) * G_USEC_PER_SEC - g_udev_device_get_usec_since_initialized (ns_device));
-    g_object_unref (ns_device);
-    g_object_unref (client);
-  }
-#endif
+  GUdevClient *client;
+  GUdevDevice *ns_device;
+  client = g_udev_client_new (NULL);
+  ns_device =  g_udev_client_query_by_sysfs_path (client, g_udev_device_get_sysfs_path (device));
+
+  if (drive->time_detected == 0)
+    drive->time_detected = g_get_real_time () - g_udev_device_get_usec_since_initialized (ns_device);
+  if (!g_udev_device_get_sysfs_attr_as_boolean (device, "removable") || is_pc_floppy_drive)
+    {
+      drive->time_media_detected = drive->time_detected;
+    }
+  else
+    {
+      if (!media_available)
+        drive->time_media_detected = 0;
+      else if (drive->time_media_detected == 0)
+        drive->time_media_detected = g_get_real_time ();
+    }
+  g_object_unref (ns_device);
+  g_object_unref (client);
+
+  udisks_drive_set_time_detected (iface, drive->time_detected);
+  udisks_drive_set_time_media_detected (iface, drive->time_media_detected);
+
+  sort_key = g_strdup_printf ("%" G_GINT64_FORMAT, drive->time_detected);
   udisks_drive_set_sort_key (iface, sort_key);
   g_free (sort_key);
+
  out:
   if (device != NULL)
     g_object_unref (device);
-- 
2.7.4