import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/system/gonk/VolumeCommand.cpp

@@ -0,0 +1,85 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsString.h"
+#include "nsWhitespaceTokenizer.h"
+
+#include "Volume.h"
+#include "VolumeCommand.h"
+#include "VolumeManager.h"
+#include "VolumeManagerLog.h"
+
+namespace mozilla {
+namespace system {
+
+/***************************************************************************
+*
+* The VolumeActionCommand class is used to send commands which apply
+* to a particular volume.
+*
+* The following commands would fit into this category:
+*
+*   volume mount <volname>
+*   volume unmount <volname> [force]
+*   volume format <volname>
+*   volume share <volname> <method>
+*   volume unshare <volname> <method>
+*   volume shared <volname> <method>
+*
+* A typical response looks like:
+*
+*   # vdc volume unshare sdcard ums
+*   605 Volume sdcard /mnt/sdcard state changed from 7 (Shared-Unmounted) to 1 (Idle-Unmounted)
+*   200 volume operation succeeded
+*
+*   Note that the 600 series of responses are considered unsolicited and
+*   are dealt with directly by the VolumeManager. This command will only
+*   see the terminating response code (200 in the example above).
+*
+***************************************************************************/
+
+VolumeActionCommand::VolumeActionCommand(Volume* aVolume,
+                                         const char* aAction,
+                                         const char* aExtraArgs,
+                                         VolumeResponseCallback* aCallback)
+  : VolumeCommand(aCallback),
+    mVolume(aVolume)
+{
+  nsAutoCString cmd;
+
+  cmd = "volume ";
+  cmd += aAction;
+  cmd += " ";
+  cmd += aVolume->Name().get();
+
+  // vold doesn't like trailing white space, so only add it if we really need to.
+  if (aExtraArgs && (*aExtraArgs != '\0')) {
+    cmd += " ";
+    cmd += aExtraArgs;
+  }
+  SetCmd(cmd);
+}
+
+/***************************************************************************
+*
+* The VolumeListCommand class is used to send the "volume list" command to
+* vold.
+*
+* A typical response looks like:
+*
+*   # vdc volume list
+*   110 sdcard /mnt/sdcard 4
+*   110 sdcard1 /mnt/sdcard/external_sd 4
+*   200 Volumes listed.
+*
+***************************************************************************/
+
+VolumeListCommand::VolumeListCommand(VolumeResponseCallback* aCallback)
+  : VolumeCommand(NS_LITERAL_CSTRING("volume list"), aCallback)
+{
+}
+
+} // system
+} // mozilla
+