efe23b7595
For Buffers created in Node, they are usually allocated in Node and freed by Chromium's allocator, which will cause crashes when Node and Chromium are using different allocators. This commit makes Chromium use Node' allocator for ArrayBuffers.
35 lines
1.4 KiB
C++
35 lines
1.4 KiB
C++
// Copyright (c) 2016 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef ATOM_NODE_OSFHANDLE_H_
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#define ATOM_NODE_OSFHANDLE_H_
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#include <windows.h>
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namespace node {
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// The _open_osfhandle and _close functions on Windows are provided by the
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// Visual C++ library, so the fd returned by them can only be used in the
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// same instance of VC++ library.
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// However Electron is linking with VC++ library statically, so electron.exe
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// shares a different instance of VC++ library with node.exe. This results
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// in fd created in electron.exe not usable in node.dll, so we have to ensure
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// we always create fd in one instance of VC++ library.
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// Followings wrappers are compiled in node.dll, and all code in electron.exe
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// should call these wrappers instead of calling _open_osfhandle directly.
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__declspec(dllexport) int open_osfhandle(intptr_t osfhandle, int flags);
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__declspec(dllexport) int close(int fd);
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// Memory allocation functions from Node's module, used by ArrayBuffer allocator
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// to make sure memories are allocated and freed with the same allocator.
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__declspec(dllexport) void* ArrayBufferCalloc(size_t length);
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__declspec(dllexport) void* ArrayBufferMalloc(size_t length);
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__declspec(dllexport) void ArrayBufferFree(void* data, size_t length);
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// A trick to force referencing symbols.
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__declspec(dllexport) void ReferenceSymbols();
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} // namespace node
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#endif // ATOM_NODE_OSFHANDLE_H_
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