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Fix writing of WCHAR strings to event pipe buffer in nativeaot #88365

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Fix writing of WCHAR strings to event pipe buffer in nativeaot #88365

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17 changes: 17 additions & 0 deletions src/coreclr/nativeaot/Runtime/eventpipe/dotnetruntime.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,23 @@ bool WriteToBuffer(const BYTE *src, size_t len, BYTE *&buffer, size_t& offset, s
return true;
}

bool WriteToBuffer(const WCHAR* str, BYTE *&buffer, size_t& offset, size_t& size, bool &fixedBuffer)
{
if (str == NULL)
return true;

size_t byteCount = (ep_rt_utf16_string_len(reinterpret_cast<const ep_char16_t*>(str)) + 1) * sizeof(*str);
if (offset + byteCount > size)
{
if (!ResizeBuffer(buffer, size, offset, size + byteCount, fixedBuffer))
return false;
}

memcpy(buffer + offset, str, byteCount);
offset += byteCount;
return true;
}

bool ResizeBuffer(BYTE *&buffer, size_t& size, size_t currLen, size_t newSize, bool &fixedBuffer)
{
newSize = (size_t)(newSize * 1.5);
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