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wine-staging/patches/server-PeekMessage/0001-server-Fix-handling-of-GetMessage-after-previous-Pee.patch

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From 8150c449a9de5f2dc981b0a469d4f299d6d6eba2 Mon Sep 17 00:00:00 2001
From: Sebastian Lackner <sebastian@fds-team.de>
Date: Sun, 15 Mar 2015 01:05:48 +0100
Subject: server: Fix handling of GetMessage after previous PeekMessage call.
(v2)
Changes in v2:
* accept_hardware_message should also reset ignore_post_msg
---
dlls/user32/tests/msg.c | 26 ++++++++++++++++++--------
server/queue.c | 34 +++++++++++++++++++++++++++++-----
2 files changed, 47 insertions(+), 13 deletions(-)
diff --git a/dlls/user32/tests/msg.c b/dlls/user32/tests/msg.c
index d92fbc7..f7d41c0 100644
--- a/dlls/user32/tests/msg.c
+++ b/dlls/user32/tests/msg.c
@@ -10601,13 +10601,10 @@ static void test_PeekMessage3(void)
ok(msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
PostMessageA(hwnd, WM_USER, 0, 0);
ret = PeekMessageA(&msg, NULL, 0, 0, PM_NOREMOVE);
- todo_wine
ok(ret && msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
ret = GetMessageA(&msg, NULL, 0, 0);
- todo_wine
ok(ret && msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
ret = GetMessageA(&msg, NULL, 0, 0);
- todo_wine
ok(ret && msg.message == WM_USER, "msg.message = %u instead of WM_USER\n", msg.message);
ret = PeekMessageA(&msg, NULL, 0, 0, 0);
ok(!ret, "expected PeekMessage to return FALSE, got %u\n", ret);
@@ -10617,10 +10614,8 @@ static void test_PeekMessage3(void)
ok(msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
PostMessageA(hwnd, WM_USER, 0, 0);
ret = PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE);
- todo_wine
ok(ret && msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
ret = PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE);
- todo_wine
ok(ret && msg.message == WM_USER, "msg.message = %u instead of WM_USER\n", msg.message);
ret = PeekMessageA(&msg, NULL, 0, 0, 0);
ok(!ret, "expected PeekMessage to return FALSE, got %u\n", ret);
@@ -10632,10 +10627,8 @@ static void test_PeekMessage3(void)
ok(msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
PostMessageA(hwnd, WM_USER, 0, 0);
ret = GetMessageA(&msg, NULL, 0, 0);
- todo_wine
ok(ret && msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
ret = GetMessageA(&msg, NULL, 0, 0);
- todo_wine
ok(ret && msg.message == WM_USER, "msg.message = %u instead of WM_USER\n", msg.message);
ret = PeekMessageA(&msg, NULL, 0, 0, 0);
ok(!ret, "expected PeekMessage to return FALSE, got %u\n", ret);
@@ -10663,11 +10656,28 @@ static void test_PeekMessage3(void)
ret = GetMessageA(&msg, NULL, 0, 0);
ok(ret && msg.message == WM_USER, "msg.message = %u instead of WM_USER\n", msg.message);
ret = GetMessageA(&msg, NULL, 0, 0);
- todo_wine
ok(ret && msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
ret = GetMessageA(&msg, NULL, 0, 0);
+ ok(ret && msg.message == WM_USER + 1, "msg.message = %u instead of WM_USER + 1\n", msg.message);
+ ret = PeekMessageA(&msg, NULL, 0, 0, 0);
+ ok(!ret, "expected PeekMessage to return FALSE, got %u\n", ret);
+
+ /* Newer messages are still returned when specifying a message range. */
+
+ SetTimer(hwnd, 1, 0, NULL);
+ while (!PeekMessageA(&msg, NULL, WM_TIMER, WM_TIMER, PM_NOREMOVE));
+ ok(msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
+ PostMessageA(hwnd, WM_USER + 1, 0, 0);
+ PostMessageA(hwnd, WM_USER, 0, 0);
+ ret = PeekMessageA(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
todo_wine
+ ok(ret && msg.message == WM_USER, "msg.message = %u instead of WM_USER\n", msg.message);
+ ret = PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE);
+ ok(ret && msg.message == WM_TIMER, "msg.message = %u instead of WM_TIMER\n", msg.message);
+ ret = PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE);
ok(ret && msg.message == WM_USER + 1, "msg.message = %u instead of WM_USER + 1\n", msg.message);
+ ret = PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE);
+ ok(ret && msg.message == WM_USER, "msg.message = %u instead of WM_USER\n", msg.message);
ret = PeekMessageA(&msg, NULL, 0, 0, 0);
ok(!ret, "expected PeekMessage to return FALSE, got %u\n", ret);
diff --git a/server/queue.c b/server/queue.c
index 13ca2b2..a46ba24 100644
--- a/server/queue.c
+++ b/server/queue.c
@@ -140,6 +140,7 @@ struct msg_queue
struct thread_input *input; /* thread input descriptor */
struct hook_table *hooks; /* hook table */
timeout_t last_get_msg; /* time of last get message call */
+ unsigned int ignore_post_msg; /* ignore post messages newer than this unique id */
};
struct hotkey
@@ -294,6 +295,7 @@ static struct msg_queue *create_msg_queue( struct thread *thread, struct thread_
queue->input = (struct thread_input *)grab_object( input );
queue->hooks = NULL;
queue->last_get_msg = current_time;
+ queue->ignore_post_msg = 0;
list_init( &queue->send_result );
list_init( &queue->callback_result );
list_init( &queue->pending_timers );
@@ -491,13 +493,21 @@ static inline struct msg_queue *get_current_queue(void)
}
/* get a (pseudo-)unique id to tag hardware messages */
-static inline unsigned int get_unique_id(void)
+static inline unsigned int get_unique_hw_id(void)
{
static unsigned int id;
if (!++id) id = 1; /* avoid an id of 0 */
return id;
}
+/* get unique increasing id to tag post messages */
+static inline unsigned int get_unique_post_id(void)
+{
+ static unsigned int id;
+ if (!++id) id = 1;
+ return id;
+}
+
/* try to merge a message with the last in the list; return 1 if successful */
static int merge_message( struct thread_input *input, const struct message *msg )
{
@@ -786,6 +796,7 @@ static int get_posted_message( struct msg_queue *queue, user_handle_t win,
{
if (!match_window( win, msg->win )) continue;
if (!check_msg_filter( msg->msg, first, last )) continue;
+ if (queue->ignore_post_msg && (int)(msg->unique_id - queue->ignore_post_msg) >= 0) continue;
goto found; /* found one */
}
return 0;
@@ -1383,6 +1394,7 @@ found:
msg->msg = WM_HOTKEY;
msg->wparam = hotkey->id;
msg->lparam = ((hotkey->vkey & 0xffff) << 16) | modifiers;
+ msg->unique_id = get_unique_post_id();
free( msg->data );
msg->data = NULL;
@@ -1988,7 +2000,7 @@ static int get_hardware_message( struct thread *thread, unsigned int hw_id, user
continue;
}
/* now we can return it */
- if (!msg->unique_id) msg->unique_id = get_unique_id();
+ if (!msg->unique_id) msg->unique_id = get_unique_hw_id();
reply->type = MSG_HARDWARE;
reply->win = win;
reply->msg = msg_code;
@@ -2094,6 +2106,7 @@ void post_message( user_handle_t win, unsigned int message, lparam_t wparam, lpa
msg->result = NULL;
msg->data = NULL;
msg->data_size = 0;
+ msg->unique_id = get_unique_post_id();
get_message_defaults( thread->queue, &msg->x, &msg->y, &msg->time );
@@ -2311,6 +2324,7 @@ DECL_HANDLER(send_message)
set_queue_bits( recv_queue, QS_SENDMESSAGE );
break;
case MSG_POSTED:
+ msg->unique_id = get_unique_post_id();
list_add_tail( &recv_queue->msg_list[POST_MESSAGE], &msg->entry );
set_queue_bits( recv_queue, QS_POSTMESSAGE|QS_ALLPOSTMESSAGE );
if (msg->msg == WM_HOTKEY)
@@ -2440,7 +2454,7 @@ DECL_HANDLER(get_message)
if ((filter & QS_INPUT) &&
filter_contains_hw_range( req->get_first, req->get_last ) &&
get_hardware_message( current, req->hw_id, get_win, req->get_first, req->get_last, req->flags, reply ))
- return;
+ goto found_msg;
/* now check for WM_PAINT */
if ((filter & QS_PAINT) &&
@@ -2453,7 +2467,7 @@ DECL_HANDLER(get_message)
reply->wparam = 0;
reply->lparam = 0;
get_message_defaults( queue, &reply->x, &reply->y, &reply->time );
- return;
+ goto found_msg;
}
/* now check for timer */
@@ -2469,13 +2483,20 @@ DECL_HANDLER(get_message)
get_message_defaults( queue, &reply->x, &reply->y, &reply->time );
if (!(req->flags & PM_NOYIELD) && current->process->idle_event)
set_event( current->process->idle_event );
- return;
+ goto found_msg;
}
if (get_win == -1 && current->process->idle_event) set_event( current->process->idle_event );
queue->wake_mask = req->wake_mask;
queue->changed_mask = req->changed_mask;
set_error( STATUS_PENDING ); /* FIXME */
+ return;
+
+found_msg:
+ if (req->flags & PM_REMOVE)
+ queue->ignore_post_msg = 0;
+ else if (!queue->ignore_post_msg)
+ queue->ignore_post_msg = get_unique_post_id();
}
@@ -2493,7 +2514,10 @@ DECL_HANDLER(reply_message)
DECL_HANDLER(accept_hardware_message)
{
if (current->queue)
+ {
release_hardware_message( current->queue, req->hw_id, req->remove );
+ if (req->remove) current->queue->ignore_post_msg = 0;
+ }
else
set_error( STATUS_ACCESS_DENIED );
}
--
2.5.0
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