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b4b30f1acd
When the code was originally added in bug 1842658, it was to use non-atomic
refcounting across multiple threads due to some invariants preventing
concurrent access. That was changed in bug 1607762 to fix a race issue.
We should be able to switch to using the macros now, which will simplify the
code here a bit.
Depends on D183203
Differential Revision: https://phabricator.services.mozilla.com/D183204
64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
/* 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 nsHtml5OwningUTF16Buffer_h
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#define nsHtml5OwningUTF16Buffer_h
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#include "nsHtml5UTF16Buffer.h"
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#include "mozilla/Span.h"
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class nsHtml5OwningUTF16Buffer : public nsHtml5UTF16Buffer {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsHtml5OwningUTF16Buffer)
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private:
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/**
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* Passes a buffer and its length to the superclass constructor.
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*/
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explicit nsHtml5OwningUTF16Buffer(char16_t* aBuffer);
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public:
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/**
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* Constructor for a parser key placeholder. (No actual buffer.)
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* @param aKey a parser key
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*/
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explicit nsHtml5OwningUTF16Buffer(void* aKey);
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protected:
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/**
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* Takes care of releasing the owned buffer.
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*/
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~nsHtml5OwningUTF16Buffer();
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public:
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/**
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* The next buffer in a queue.
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*/
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RefPtr<nsHtml5OwningUTF16Buffer> next;
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/**
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* A parser key.
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*/
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void* key;
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static already_AddRefed<nsHtml5OwningUTF16Buffer> FalliblyCreate(
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int32_t aLength);
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/**
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* Swap start, end and buffer fields with another object.
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*/
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void Swap(nsHtml5OwningUTF16Buffer* aOther);
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/**
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* Return a span from `end` to `aBufferSize`.
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*/
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mozilla::Span<char16_t> TailAsSpan(int32_t aBufferSize);
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/**
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* Add the argument to `end`.
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*/
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void AdvanceEnd(int32_t aNumberOfCodeUnits);
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};
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#endif // nsHtml5OwningUTF16Buffer_h
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