Nikolay Sivov : shcore/stream: Implement generic CopyTo().
Alexandre Julliard
julliard at winehq.org
Mon Apr 26 15:51:31 CDT 2021
Module: wine
Branch: master
Commit: e7f60e39f68f9190477a9e022c4f785724d55ae6
URL: https://source.winehq.org/git/wine.git/?a=commit;h=e7f60e39f68f9190477a9e022c4f785724d55ae6
Author: Nikolay Sivov <nsivov at codeweavers.com>
Date: Mon Apr 26 08:51:39 2021 +0300
shcore/stream: Implement generic CopyTo().
Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/shcore/main.c | 48 +++++++++++++++++++++++++++++++++++++++++-------
1 file changed, 41 insertions(+), 7 deletions(-)
diff --git a/dlls/shcore/main.c b/dlls/shcore/main.c
index fd21db423ea..82b236bb47d 100644
--- a/dlls/shcore/main.c
+++ b/dlls/shcore/main.c
@@ -695,20 +695,54 @@ 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 (read_len)
- read_len->QuadPart = 0;
+ 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 = 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)
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