adds a signal, fixes a crash, adds syslogging, and marshals disks to d-bus

disk.cc

Index: disk.cc
diff --git a/disk.cc b/disk.cc
index fe0bf8c33ac49c4e334147f7f207cfeb0cfb65df..0300be66f5b4bcc04f3402b7d12de02fafb0ea45 100644
--- a/disk.cc
+++ b/disk.cc
@@ -17,12 +17,13 @@ const char kNativePath[] = "NativePath";
 const char kDeviceFile[] = "DeviceFile";
 const char kLabel[] = "IdLabel";
 const char kDriveModel[] = "DriveModel";
-const char kPartitionSlave[] = "PartitionSlave";
 const char kDriveIsRotational[] = "DriveIsRotational";
 const char kDeviceIsOpticalDisc[] = "DeviceIsOpticalDisc";
 const char kDeviceSize[] = "DeviceSize";
 const char kReadOnly[] = "DeviceIsReadOnly";
 
+// TODO(rtc): Figure out what this field is and include it in the response.
+const char kPartitionSlave[] = "PartitionSlave";
 
 // TODO(rtc): The constructor should set some defaults, but I'm still iterating
 // on the data model.
@@ -32,4 +33,22 @@ Disk::Disk() {
 Disk::~Disk() {
 }
 
+DBusDisk Disk::ToDBusFormat() const {
+  DBusDisk disk;
+  disk[kDeviceIsDrive].writer().append_bool(is_drive());
+  disk[kDevicePresentationHide].writer().append_bool(is_hidden());
+  disk[kDeviceIsMounted].writer().append_bool(is_mounted());
+  disk[kDeviceMountPaths].writer().append_string(mount_path().c_str());
+  disk[kDeviceIsMediaAvailable].writer().append_bool(is_media_available());
+  disk[kNativePath].writer().append_string(native_path().c_str());
+  disk[kDeviceFile].writer().append_string(device_file().c_str());
+  disk[kLabel].writer().append_string(label().c_str());
+  disk[kDriveModel].writer().append_string(drive_model().c_str());
+  disk[kDriveIsRotational].writer().append_bool(is_rotational());
+  disk[kDeviceIsOpticalDisc].writer().append_bool(is_optical_disk());
+  disk[kDeviceSize].writer().append_int64(device_capacity());
+  disk[kReadOnly].writer().append_bool(is_read_only());
+  return disk;
+}
+
 } // namespace cros_disks