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server: Grow rawinput buffer instead of allocating its maximum size. 

Call of Duty: WWII call GetRawInputBuffer with very large client buffer,
so the maximum buffer size may be large and it causes an unnecessary
load on wineserver when it allocates and clears the reply buffer.

Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Rémi Bernon 2021-02-08 12:09:43 +01:00 committed by Alexandre Julliard
parent 14905720ed
commit 50798b1320
1 changed files with 14 additions and 4 deletions
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18
server/queue.c
View File

@ -3256,12 +3256,11 @@ DECL_HANDLER(get_rawinput_buffer)
struct thread_input *input = current->queue->input;
data_size_t size = 0, next_size = 0;
struct list *ptr;
char *buf, *cur;
int count = 0;
char *buf, *cur, *tmp;
int count = 0, buf_size = 16 * sizeof(struct hardware_msg_data);
if (!req->buffer_size) buf = NULL;
else if (!(buf = mem_alloc( get_reply_max_size() )))
return;
else if (!(buf = mem_alloc( buf_size ))) return;
cur = buf;
ptr = list_head( &input->msg_list );
@ -3276,6 +3275,17 @@ DECL_HANDLER(get_rawinput_buffer)
next_size = req->rawinput_size;
if (size + next_size > req->buffer_size) break;
if (cur + sizeof(*data) > buf + get_reply_max_size()) break;
if (cur + sizeof(*data) > buf + buf_size)
{
buf_size += buf_size / 2;
if (!(tmp = realloc( buf, buf_size )))
{
set_error( STATUS_NO_MEMORY );
return;
}
cur = tmp + (cur - buf);
buf = tmp;
}
memcpy(cur, data, sizeof(*data));
list_remove( &msg->entry );