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82 lines
3.2 KiB
C
82 lines
3.2 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: sw=4 ts=4 et :
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*/
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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
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* Mozilla Foundation
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Chris Jones <jones.chris.g@gmail.com>
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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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#ifndef mozilla_mozalloc_oom_h
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#define mozilla_mozalloc_oom_h
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#include "mozalloc.h"
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#if defined(MOZALLOC_EXPORT)
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// do nothing: it's been defined to __declspec(dllexport) by
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// mozalloc*.cpp on platforms where that's required
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#elif defined(XP_WIN) || (defined(XP_OS2) && defined(__declspec))
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# define MOZALLOC_EXPORT __declspec(dllimport)
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#elif defined(HAVE_VISIBILITY_ATTRIBUTE)
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/* Make sure symbols are still exported even if we're wrapped in a
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* |visibility push(hidden)| blanket. */
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# define MOZALLOC_EXPORT __attribute__ ((visibility ("default")))
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#else
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# define MOZALLOC_EXPORT
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#endif
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/**
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* Called when memory is critically low. Returns iff it was able to
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* remedy the critical memory situation; if not, it will abort().
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*
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* We have to re-#define MOZALLOC_EXPORT because this header can be
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* used indepedently of mozalloc.h.
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*/
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MOZALLOC_EXPORT void mozalloc_handle_oom(size_t requestedSize);
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/**
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* Called by embedders (specifically Mozilla breakpad) which wants to be
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* notified of an intentional abort, to annotate any crash report with
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* the size of the allocation on which we aborted.
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*/
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typedef void (*mozalloc_oom_abort_handler)(size_t size);
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MOZALLOC_EXPORT void mozalloc_set_oom_abort_handler(mozalloc_oom_abort_handler handler);
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/* TODO: functions to query system memory usage and register
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* critical-memory handlers. */
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#endif /* ifndef mozilla_mozalloc_oom_h */
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