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71 lines
2.8 KiB
C
71 lines
2.8 KiB
C
/*
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* Copyright (C) 2008 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef JSBasePrivate_h
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#define JSBasePrivate_h
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#include <JavaScriptCore/JSBase.h>
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#include <JavaScriptCore/WebKitAvailability.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*!
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@function
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@abstract Reports an object's non-GC memory payload to the garbage collector.
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@param ctx The execution context to use.
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@param size The payload's size, in bytes.
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@discussion Use this function to notify the garbage collector that a GC object
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owns a large non-GC memory region. Calling this function will encourage the
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garbage collector to collect soon, hoping to reclaim that large non-GC memory
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region.
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*/
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JS_EXPORT void JSReportExtraMemoryCost(JSContextRef ctx, size_t size) JSC_API_AVAILABLE(macos(10.6), ios(7.0));
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JS_EXPORT void JSDisableGCTimer(void);
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/*!
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@function
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@abstract Produces an object with various statistics about current memory usage.
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@param ctx The execution context to use.
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@result An object containing GC heap status data.
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@discussion Specifically, the result object has the following integer-valued fields:
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heapSize: current size of heap
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heapCapacity: current capacity of heap
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extraMemorySize: amount of non-GC memory referenced by GC objects (included in heap size / capacity)
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objectCount: current count of GC objects
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protectedObjectCount: current count of protected GC objects
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globalObjectCount: current count of global GC objects
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protectedGlobalObjectCount: current count of protected global GC objects
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*/
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JS_EXPORT JSObjectRef JSGetMemoryUsageStatistics(JSContextRef ctx);
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#ifdef __cplusplus
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}
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#endif
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#endif /* JSBasePrivate_h */
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