зеркало из https://github.com/mozilla/gecko-dev.git
54 строки
1.5 KiB
C++
54 строки
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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/* Low-level memory-allocation functions. */
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#ifndef js_MemoryFunctions_h
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#define js_MemoryFunctions_h
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#include "mozilla/Assertions.h" // MOZ_ASSERT
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#include "mozilla/Attributes.h" // MOZ_MUST_USE
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#include <stddef.h> // size_t
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#include "jstypes.h" // JS_PUBLIC_API
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struct JSContext;
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struct JSRuntime;
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struct JSFreeOp {
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protected:
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JSRuntime* runtime_;
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explicit JSFreeOp(JSRuntime* rt) : runtime_(rt) {}
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public:
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JSRuntime* runtime() const {
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MOZ_ASSERT(runtime_);
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return runtime_;
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}
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};
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extern JS_PUBLIC_API void* JS_malloc(JSContext* cx, size_t nbytes);
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extern JS_PUBLIC_API void* JS_realloc(JSContext* cx, void* p, size_t oldBytes,
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size_t newBytes);
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/**
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* A wrapper for |js_free(p)| that may delay |js_free(p)| invocation as a
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* performance optimization. |cx| may be nullptr.
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*/
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extern JS_PUBLIC_API void JS_free(JSContext* cx, void* p);
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/**
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* A wrapper for |js_free(p)| that may delay |js_free(p)| invocation as a
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* performance optimization as specified by the given JSFreeOp instance.
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*/
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extern JS_PUBLIC_API void JS_freeop(JSFreeOp* fop, void* p);
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extern JS_PUBLIC_API void JS_updateMallocCounter(JSContext* cx, size_t nbytes);
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#endif /* js_MemoryFunctions_h */
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