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winhttp: WinHttpQueryDataAvailable should do a blocking read if more data is expected. 

Spotted by Henri Verbeet.
This commit is contained in:
Hans Leidekker 2008-09-08 22:02:01 +02:00 committed by Alexandre Julliard
parent 6e6ffab63f
commit 01e7d12848
2 changed files with 21 additions and 6 deletions
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6
dlls/winhttp/net.c
View File

@ -464,11 +464,7 @@ BOOL netconn_query_data_available( netconn_t *conn, DWORD *available )
return TRUE;
}
#ifdef FIONREAD
if (!(ret = ioctl( conn->socket, FIONREAD, &unread )))
{
TRACE("%d bytes of queued, but unread data\n", unread);
*available += unread;
}
if (!(ret = ioctl( conn->socket, FIONREAD, &unread ))) *available = unread;
#endif
return TRUE;
}

21
dlls/winhttp/request.c
View File

@ -1238,7 +1238,26 @@ static BOOL query_data( request_t *request, LPDWORD available, BOOL async )
BOOL ret;
DWORD num_bytes;
ret = netconn_query_data_available( &request->netconn, &num_bytes );
if ((ret = netconn_query_data_available( &request->netconn, &num_bytes )))
{
if (request->content_read < request->content_length)
{
if (!num_bytes)
{
char buffer[4096];
size_t to_read = min( sizeof(buffer), request->content_length - request->content_read );
ret = netconn_recv( &request->netconn, buffer, to_read, MSG_PEEK, (int *)&num_bytes );
if (ret && !num_bytes) WARN("expected more data to be available\n");
}
}
else if (num_bytes)
{
WARN("extra data available %u\n", num_bytes);
ret = FALSE;
}
}
TRACE("%u bytes available\n", num_bytes);
if (async)
{