Sylvestre Ledru
9eb1a31a98
replaced by .editorconfig # ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D287843
42 lines
1003 B
C++
42 lines
1003 B
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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#include "MemMapSnapshot.h"
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#include "mozilla/ResultExtensions.h"
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#include "mozilla/ipc/SharedMemoryHandle.h"
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#include "nsDebug.h"
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namespace mozilla::ipc {
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Result<Ok, nsresult> MemMapSnapshot::Init(size_t aSize) {
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MOZ_ASSERT(!mMem);
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auto handle = shared_memory::CreateFreezable(aSize);
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if (NS_WARN_IF(!handle)) {
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return Err(NS_ERROR_FAILURE);
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}
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auto mem = std::move(handle).Map();
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if (NS_WARN_IF(!mem)) {
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return Err(NS_ERROR_FAILURE);
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}
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mMem = std::move(mem);
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return Ok();
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}
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Result<ReadOnlySharedMemoryHandle, nsresult> MemMapSnapshot::Finalize() {
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MOZ_ASSERT(mMem);
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auto readOnlyHandle = std::move(mMem).Freeze();
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if (NS_WARN_IF(!readOnlyHandle)) {
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return Err(NS_ERROR_FAILURE);
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}
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return std::move(readOnlyHandle);
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}
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} // namespace mozilla::ipc
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