gecko-dev/xpcom/io/nsAnonymousTemporaryFile.h
2020-04-07 19:09:47 +00:00

40 lines
1.5 KiB
C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#pragma once
#include "prio.h"
#include "nscore.h"
#include "nsIFile.h"
/**
* OpenAnonymousTemporaryFile
*
* Creates and opens a temporary file which has a random name. Callers have no
* control over the file name, and the file is opened in a temporary location
* which is appropriate for the platform.
*
* Upon success, aOutFileDesc contains an opened handle to the temporary file.
* The caller is responsible for closing the file when they're finished with it.
*
* The file will be deleted when the file handle is closed. On non-Windows
* platforms the file will be unlinked before this function returns. On Windows
* the OS supplied delete-on-close mechanism is unreliable if the application
* crashes or the computer power cycles unexpectedly, so unopened temporary
* files are purged at some time after application startup.
*
*/
nsresult NS_OpenAnonymousTemporaryFile(PRFileDesc** aOutFileDesc);
/**
* OpenAnonymousTemporaryNsIFile
*
* Similar to the previous function, it returns a nsIFile. Note that the nsIFile
* will not be deleted automagically. The callee has to call aFile->Remove() in
* order to remove the temporary file.
*/
nsresult NS_OpenAnonymousTemporaryNsIFile(nsIFile** aFile);