forked from mirrors/gecko-dev
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* 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/. */
|
|
|
|
#ifndef nsDeleteDir_h__
|
|
#define nsDeleteDir_h__
|
|
|
|
#include "nsCOMPtr.h"
|
|
#include "nsCOMArray.h"
|
|
#include "mozilla/Mutex.h"
|
|
#include "mozilla/CondVar.h"
|
|
|
|
class nsIFile;
|
|
class nsIThread;
|
|
class nsITimer;
|
|
|
|
|
|
class nsDeleteDir {
|
|
public:
|
|
nsDeleteDir();
|
|
~nsDeleteDir();
|
|
|
|
static nsresult Init();
|
|
static nsresult Shutdown(bool finishDeleting);
|
|
|
|
/**
|
|
* This routine attempts to delete a directory that may contain some files
|
|
* that are still in use. This latter point is only an issue on Windows and
|
|
* a few other systems.
|
|
*
|
|
* If the moveToTrash parameter is true we first rename the given directory
|
|
* "foo.Trash123" (where "foo" is the original directory name, and "123" is
|
|
* a random number, in order to support multiple concurrent deletes). The
|
|
* directory is then deleted, file-by-file, on a background thread.
|
|
*
|
|
* If the moveToTrash parameter is false, then the given directory is deleted
|
|
* directly.
|
|
*
|
|
* If 'delay' is non-zero, the directory will not be deleted until the
|
|
* specified number of milliseconds have passed. (The directory is still
|
|
* renamed immediately if 'moveToTrash' is passed, so upon return it is safe
|
|
* to create a directory with the same name).
|
|
*/
|
|
static nsresult DeleteDir(nsIFile *dir, bool moveToTrash, uint32_t delay = 0);
|
|
|
|
/**
|
|
* Returns the trash directory corresponding to the given directory.
|
|
*/
|
|
static nsresult GetTrashDir(nsIFile *dir, nsCOMPtr<nsIFile> *result);
|
|
|
|
/**
|
|
* Remove all trashes left from previous run. This function does nothing when
|
|
* called second and more times.
|
|
*/
|
|
static nsresult RemoveOldTrashes(nsIFile *cacheDir);
|
|
|
|
static void TimerCallback(nsITimer *aTimer, void *arg);
|
|
|
|
private:
|
|
friend class nsBlockOnBackgroundThreadEvent;
|
|
friend class nsDestroyThreadEvent;
|
|
|
|
nsresult InitThread();
|
|
void DestroyThread();
|
|
nsresult PostTimer(void *arg, uint32_t delay);
|
|
nsresult RemoveDir(nsIFile *file, bool *stopDeleting);
|
|
|
|
static nsDeleteDir * gInstance;
|
|
mozilla::Mutex mLock;
|
|
mozilla::CondVar mCondVar;
|
|
bool mNotified;
|
|
nsCOMArray<nsITimer> mTimers;
|
|
nsCOMPtr<nsIThread> mThread;
|
|
bool mShutdownPending;
|
|
bool mStopDeleting;
|
|
};
|
|
|
|
#endif // nsDeleteDir_h__
|