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49 lines
1.7 KiB
C
49 lines
1.7 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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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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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