SSL MemoryCallbacks.h Interaktion und Portierbarkeitunbekannt
/* 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/. */
#ifndef js_MemoryCallbacks_h
#define js_MemoryCallbacks_h
#include "jstypes.h"
struct JS_PUBLIC_API JSContext;
namespace JS {
/**
* If a large allocation fails when calling pod_ { calloc , realloc } CanGC , the JS
* engine may call the large - allocation - failure callback , if set , to allow the
* embedding to flush caches , possibly perform shrinking GCs , etc . to make some
* room . The allocation will then be retried ( and may still fail . ) This callback
* can be called on any thread and must be set at most once in a process .
*/
using LargeAllocationFailureCallback =
void (*)();
extern JS_PUBLIC_API
void SetProcessLargeAllocationFailureCallback(
LargeAllocationFailureCallback afc);
/**
* Unlike the error reporter , which is only called if the exception for an OOM
* bubbles up and is not caught , the OutOfMemoryCallback is called immediately
* at the OOM site to allow the embedding to capture the current state of heap
* allocation before anything is freed . If the large - allocation - failure callback
* is called at all ( not all allocation sites call the large - allocation - failure
* callback on failure ) , it is called before the out - of - memory callback ; the
* out - of - memory callback is only called if the allocation still fails after the
* large - allocation - failure callback has returned .
*/
using OutOfMemoryCallback =
void (*)(JSContext*,
void *);
extern JS_PUBLIC_API
void SetOutOfMemoryCallback(JSContext* cx,
OutOfMemoryCallback cb,
void * data);
}
// namespace JS
#endif // js_MemoryCallbacks_h
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2026-10-11
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