зеркало из https://github.com/mozilla/gecko-dev.git
130 строки
3.9 KiB
C++
130 строки
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Google Inc.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@meer.net>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsDeleteDir.h"
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#include "nsIFile.h"
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#include "nsString.h"
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#include "prthread.h"
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static void DeleteDirThreadFunc(void *arg)
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{
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nsIFile *dir = static_cast<nsIFile *>(arg);
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dir->Remove(PR_TRUE);
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NS_RELEASE(dir);
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}
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nsresult DeleteDir(nsIFile *dirIn, PRBool moveToTrash, PRBool sync)
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{
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nsresult rv;
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nsCOMPtr<nsIFile> trash, dir;
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// Need to make a clone of this since we don't want to modify the input
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// file object.
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rv = dirIn->Clone(getter_AddRefs(dir));
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if (NS_FAILED(rv))
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return rv;
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if (moveToTrash)
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{
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rv = GetTrashDir(dir, &trash);
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if (NS_FAILED(rv))
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return rv;
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nsCOMPtr<nsIFile> subDir;
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rv = trash->Clone(getter_AddRefs(subDir));
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if (NS_FAILED(rv))
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return rv;
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rv = subDir->AppendNative(NS_LITERAL_CSTRING("Trash"));
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if (NS_FAILED(rv))
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return rv;
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rv = subDir->CreateUnique(nsIFile::DIRECTORY_TYPE, 0700);
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if (NS_FAILED(rv))
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return rv;
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rv = dir->MoveToNative(subDir, EmptyCString());
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if (NS_FAILED(rv))
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return rv;
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}
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else
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{
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// we want to pass a clone of the original off to the worker thread.
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trash.swap(dir);
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}
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// Steal ownership of trash directory; let the thread release it.
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nsIFile *trashRef = nsnull;
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trash.swap(trashRef);
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if (sync)
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{
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DeleteDirThreadFunc(trashRef);
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}
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else
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{
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// now, invoke the worker thread
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PRThread *thread = PR_CreateThread(PR_USER_THREAD,
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DeleteDirThreadFunc,
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trashRef,
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PR_PRIORITY_LOW,
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PR_GLOBAL_THREAD,
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PR_UNJOINABLE_THREAD,
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0);
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if (!thread)
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return NS_ERROR_UNEXPECTED;
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}
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return NS_OK;
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}
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nsresult GetTrashDir(nsIFile *target, nsCOMPtr<nsIFile> *result)
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{
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nsresult rv = target->Clone(getter_AddRefs(*result));
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if (NS_FAILED(rv))
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return rv;
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nsCAutoString leaf;
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rv = (*result)->GetNativeLeafName(leaf);
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if (NS_FAILED(rv))
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return rv;
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leaf.AppendLiteral(".Trash");
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return (*result)->SetNativeLeafName(leaf);
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}
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