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comparison: netwerk/cache/nsDeleteDir.h
netwerk/cache/nsDeleteDir.h
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:240bbc9e2f82 |
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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 nsDeleteDir_h__ | |
| 8 #define nsDeleteDir_h__ | |
| 9 | |
| 10 #include "nsCOMPtr.h" | |
| 11 #include "nsCOMArray.h" | |
| 12 #include "mozilla/Mutex.h" | |
| 13 #include "mozilla/CondVar.h" | |
| 14 | |
| 15 class nsIFile; | |
| 16 class nsIThread; | |
| 17 class nsITimer; | |
| 18 | |
| 19 | |
| 20 class nsDeleteDir { | |
| 21 public: | |
| 22 nsDeleteDir(); | |
| 23 ~nsDeleteDir(); | |
| 24 | |
| 25 static nsresult Init(); | |
| 26 static nsresult Shutdown(bool finishDeleting); | |
| 27 | |
| 28 /** | |
| 29 * This routine attempts to delete a directory that may contain some files | |
| 30 * that are still in use. This latter point is only an issue on Windows and | |
| 31 * a few other systems. | |
| 32 * | |
| 33 * If the moveToTrash parameter is true we first rename the given directory | |
| 34 * "foo.Trash123" (where "foo" is the original directory name, and "123" is | |
| 35 * a random number, in order to support multiple concurrent deletes). The | |
| 36 * directory is then deleted, file-by-file, on a background thread. | |
| 37 * | |
| 38 * If the moveToTrash parameter is false, then the given directory is deleted | |
| 39 * directly. | |
| 40 * | |
| 41 * If 'delay' is non-zero, the directory will not be deleted until the | |
| 42 * specified number of milliseconds have passed. (The directory is still | |
| 43 * renamed immediately if 'moveToTrash' is passed, so upon return it is safe | |
| 44 * to create a directory with the same name). | |
| 45 */ | |
| 46 static nsresult DeleteDir(nsIFile *dir, bool moveToTrash, uint32_t delay = 0); | |
| 47 | |
| 48 /** | |
| 49 * Returns the trash directory corresponding to the given directory. | |
| 50 */ | |
| 51 static nsresult GetTrashDir(nsIFile *dir, nsCOMPtr<nsIFile> *result); | |
| 52 | |
| 53 /** | |
| 54 * Remove all trashes left from previous run. This function does nothing when | |
| 55 * called second and more times. | |
| 56 */ | |
| 57 static nsresult RemoveOldTrashes(nsIFile *cacheDir); | |
| 58 | |
| 59 static void TimerCallback(nsITimer *aTimer, void *arg); | |
| 60 | |
| 61 private: | |
| 62 friend class nsBlockOnBackgroundThreadEvent; | |
| 63 friend class nsDestroyThreadEvent; | |
| 64 | |
| 65 nsresult InitThread(); | |
| 66 void DestroyThread(); | |
| 67 nsresult PostTimer(void *arg, uint32_t delay); | |
| 68 nsresult RemoveDir(nsIFile *file, bool *stopDeleting); | |
| 69 | |
| 70 static nsDeleteDir * gInstance; | |
| 71 mozilla::Mutex mLock; | |
| 72 mozilla::CondVar mCondVar; | |
| 73 nsCOMArray<nsITimer> mTimers; | |
| 74 nsCOMPtr<nsIThread> mThread; | |
| 75 bool mShutdownPending; | |
| 76 bool mStopDeleting; | |
| 77 }; | |
| 78 | |
| 79 #endif // nsDeleteDir_h__ |
