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comparison: toolkit/mozapps/update/updater/automounter_gonk.h
toolkit/mozapps/update/updater/automounter_gonk.h
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef AUTOMOUNTER_GONK_H__ | |
| 8 #define AUTOMOUNTER_GONK_H__ | |
| 9 | |
| 10 typedef enum { | |
| 11 ReadOnly, | |
| 12 ReadWrite, | |
| 13 Unknown | |
| 14 } MountAccess; | |
| 15 | |
| 16 /** | |
| 17 * This class will remount the /system partition as read-write in Gonk to allow | |
| 18 * the updater write access. Upon destruction, /system will be remounted back to | |
| 19 * read-only. If something causes /system to remain read-write, this class will | |
| 20 * reboot the device and allow the system to mount as read-only. | |
| 21 * | |
| 22 * Code inspired from AOSP system/core/adb/remount_service.c | |
| 23 */ | |
| 24 class GonkAutoMounter | |
| 25 { | |
| 26 public: | |
| 27 GonkAutoMounter(); | |
| 28 ~GonkAutoMounter(); | |
| 29 | |
| 30 const MountAccess GetAccess() | |
| 31 { | |
| 32 return mAccess; | |
| 33 } | |
| 34 | |
| 35 private: | |
| 36 bool RemountSystem(MountAccess access); | |
| 37 bool ForceRemountReadOnly(); | |
| 38 bool UpdateMountStatus(); | |
| 39 bool ProcessMount(const char *mount); | |
| 40 bool MountSystem(unsigned long flags); | |
| 41 void Reboot(); | |
| 42 | |
| 43 private: | |
| 44 char *mDevice; | |
| 45 MountAccess mAccess; | |
| 46 }; | |
| 47 | |
| 48 #endif // AUTOMOUNTER_GONK_H__ |
