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96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_system_volume_h__
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#define mozilla_system_volume_h__
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#include "mozilla/RefPtr.h"
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#include "nsString.h"
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#include "VolumeCommand.h"
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namespace mozilla {
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namespace system {
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/***************************************************************************
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*
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* There is an instance of the Volume class for each volume reported
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* from vold.
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*
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* Each volume originates from the /system/etv/vold.fstab file.
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*
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***************************************************************************/
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class Volume : public RefCounted<Volume>
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{
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public:
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// These MUST match the states from android's system/vold/Volume.h header
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enum STATE
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{
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STATE_INIT = -1,
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STATE_NOMEDIA = 0,
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STATE_IDLE = 1,
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STATE_PENDING = 2,
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STATE_CHECKING = 3,
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STATE_MOUNTED = 4,
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STATE_UNMOUNTING = 5,
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STATE_FORMATTING = 6,
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STATE_SHARED = 7,
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STATE_SHAREDMNT = 8
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};
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Volume(const nsCSubstring &aVolumeName);
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const char *StateStr(STATE aState) const
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{
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switch (aState) {
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case STATE_INIT: return "Init";
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case STATE_NOMEDIA: return "NoMedia";
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case STATE_IDLE: return "Idle";
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case STATE_PENDING: return "Pending";
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case STATE_CHECKING: return "Checking";
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case STATE_MOUNTED: return "Mounted";
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case STATE_UNMOUNTING: return "Unmounting";
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case STATE_FORMATTING: return "Formatting";
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case STATE_SHARED: return "Shared";
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case STATE_SHAREDMNT: return "Shared-Mounted";
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}
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return "???";
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}
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const char *StateStr() const { return StateStr(mState); }
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STATE State() const { return mState; }
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const nsCString &Name() const { return mName; }
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const char *NameStr() const { return mName.get(); }
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// The mount point is the name of the directory where the volume is mounted.
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// (i.e. path that leads to the files stored on the volume).
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const nsCString &MountPoint() const { return mMountPoint; }
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// The StartXxx functions will queue up a command to the VolumeManager.
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// You can queue up as many commands as you like, and aCallback will
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// be called as each one completes.
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void StartMount(VolumeResponseCallback *aCallback);
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void StartUnmount(VolumeResponseCallback *aCallback);
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void StartShare(VolumeResponseCallback *aCallback);
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void StartUnshare(VolumeResponseCallback *aCallback);
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private:
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friend class VolumeManager; // Calls SetState
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friend class VolumeListCallback; // Calls SetMountPoint, SetState
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void SetState(STATE aNewState);
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void SetMountPoint(const nsCSubstring &aMountPoint);
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void StartCommand(VolumeCommand *aCommand);
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STATE mState;
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const nsCString mName;
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nsCString mMountPoint;
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};
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} // system
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} // mozilla
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#endif // mozilla_system_volumemanager_h__
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