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shcore/stream: Implement generic CopyTo(). 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
(cherry picked from commit e7f60e39f6)
Signed-off-by: Michael Stefaniuc <mstefani@winehq.org>
This commit is contained in:
Nikolay Sivov 2021-04-26 08:51:39 +03:00 committed by Michael Stefaniuc
parent cdab0e40b9
commit c8d12b4e05
1 changed files with 41 additions and 7 deletions
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48
dlls/shcore/main.c
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@ -697,20 +697,54 @@ static HRESULT WINAPI memstream_SetSize(IStream *iface, ULARGE_INTEGER new_size)
return S_OK;
}
static HRESULT WINAPI shstream_CopyTo(IStream *iface, IStream *pstm, ULARGE_INTEGER size, ULARGE_INTEGER *read_len, ULARGE_INTEGER *written)
static HRESULT WINAPI shstream_CopyTo(IStream *iface, IStream *dest, ULARGE_INTEGER size,
ULARGE_INTEGER *read_len, ULARGE_INTEGER *written)
{
struct shstream *stream = impl_from_IStream(iface);
ULARGE_INTEGER total_read, total_written;
HRESULT hr = S_OK;
BYTE buffer[0x400];
TRACE("(%p)\n", stream);
TRACE("(%p, %p, %s, %p, %p)\n", stream, dest, wine_dbgstr_longlong(size.QuadPart), read_len, written);
if (!dest)
return E_POINTER;
total_read.QuadPart = 0;
total_written.QuadPart = 0;
while (size.QuadPart > 0)
{
ULONG chunk_size = size.QuadPart >= sizeof(buffer) ? sizeof(buffer) : size.u.LowPart;
ULONG chunk_read, chunk_written;
hr = IStream_Read(iface, buffer, chunk_size, &chunk_read);
if (FAILED(hr))
break;
total_read.QuadPart += chunk_read;
if (chunk_read)
{
hr = IStream_Write(dest, buffer, chunk_read, &chunk_written);
if (FAILED(hr))
break;
total_written.QuadPart += chunk_written;
}
if (chunk_read != chunk_size)
size.QuadPart = 0;
else
size.QuadPart -= chunk_read;
}
if (read_len)
read_len->QuadPart = 0;
read_len->QuadPart = total_read.QuadPart;
if (written)
written->QuadPart = 0;
written->QuadPart = total_written.QuadPart;
/* TODO implement */
return E_NOTIMPL;
return hr;
}
static HRESULT WINAPI shstream_Commit(IStream *iface, DWORD flags)