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Converted the timer list to use standard list functions.

Browse source 
Allocate a timer id when the window is 0 instead of relying on the
client to do it.
Allow setting timers on windows belonging to other threads (found by
Mike McCormack).
This commit is contained in:
Alexandre Julliard 2004-11-29 18:08:18 +00:00
parent 5c2a891c43
commit ff986a5a93
4 changed files with 156 additions and 85 deletions
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3
include/wine/server_protocol.h
View file

@ -2198,6 +2198,7 @@ struct set_win_timer_request
struct set_win_timer_reply
{
struct reply_header __header;
unsigned int id;
};
@ -3642,6 +3643,6 @@ union generic_reply
struct set_global_windows_reply set_global_windows_reply;
};
#define SERVER_PROTOCOL_VERSION 149
#define SERVER_PROTOCOL_VERSION 150
#endif /* __WINE_WINE_SERVER_PROTOCOL_H */

2
server/protocol.def
View file

@ -1557,6 +1557,8 @@ enum message_type
unsigned int id; /* timer id */
unsigned int rate; /* timer rate in ms */
unsigned int lparam; /* message lparam (callback proc) */
@REPLY
unsigned int id; /* timer id */
@END

229
server/queue.c
View file

@ -83,8 +83,7 @@ struct message_list
struct timer
{
struct timer *next; /* next timer in list */
struct timer *prev; /* prev timer in list */
struct list entry; /* entry in timer list */
struct timeval when; /* next expiration */
unsigned int rate; /* timer rate in ms */
user_handle_t win; /* window handle */
@ -123,9 +122,9 @@ struct msg_queue
struct list send_result; /* stack of sent messages waiting for result */
struct list callback_result; /* list of callback messages waiting for result */
struct message_result *recv_result; /* stack of received messages waiting for result */
struct timer *first_timer; /* head of timer list */
struct timer *last_timer; /* tail of timer list */
struct timer *next_timer; /* next timer to expire */
struct list pending_timers; /* list of pending timers */
struct list expired_timers; /* list of expired timers */
unsigned int next_timer_id; /* id for the next timer with a 0 window */
struct timeout_user *timeout; /* timeout for next timer to expire */
struct thread_input *input; /* thread input descriptor */
struct hook_table *hooks; /* hook table */
@ -235,15 +234,15 @@ static struct msg_queue *create_msg_queue( struct thread *thread, struct thread_
queue->changed_mask = 0;
queue->paint_count = 0;
queue->recv_result = NULL;
queue->first_timer = NULL;
queue->last_timer = NULL;
queue->next_timer = NULL;
queue->next_timer_id = 1;
queue->timeout = NULL;
queue->input = (struct thread_input *)grab_object( input );
queue->hooks = NULL;
gettimeofday( &queue->last_get_msg, NULL );
list_init( &queue->send_result );
list_init( &queue->callback_result );
list_init( &queue->pending_timers );
list_init( &queue->expired_timers );
for (i = 0; i < NB_MSG_KINDS; i++)
queue->msg_list[i].first = queue->msg_list[i].last = NULL;
@ -749,17 +748,23 @@ static int msg_queue_satisfied( struct object *obj, struct thread *thread )
static void msg_queue_destroy( struct object *obj )
{
struct msg_queue *queue = (struct msg_queue *)obj;
struct timer *timer = queue->first_timer;
struct list *ptr;
int i;
cleanup_results( queue );
for (i = 0; i < NB_MSG_KINDS; i++) empty_msg_list( &queue->msg_list[i] );
while (timer)
while ((ptr = list_head( &queue->pending_timers )))
{
struct timer *next = timer->next;
struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
list_remove( &timer->entry );
free( timer );
}
while ((ptr = list_head( &queue->expired_timers )))
{
struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
list_remove( &timer->entry );
free( timer );
timer = next;
}
if (queue->timeout) remove_timeout_user( queue->timeout );
if (queue->input) release_object( queue->input );
@ -855,79 +860,93 @@ static void detach_thread_input( struct thread *thread_from, struct thread *thre
/* set the next timer to expire */
static void set_next_timer( struct msg_queue *queue, struct timer *timer )
static void set_next_timer( struct msg_queue *queue )
{
struct list *ptr;
if (queue->timeout)
{
remove_timeout_user( queue->timeout );
queue->timeout = NULL;
}
if ((queue->next_timer = timer))
if ((ptr = list_head( &queue->pending_timers )))
{
struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
queue->timeout = add_timeout_user( &timer->when, timer_callback, queue );
}
/* set/clear QS_TIMER bit */
if (queue->next_timer == queue->first_timer)
if (list_empty( &queue->expired_timers ))
clear_queue_bits( queue, QS_TIMER );
else
set_queue_bits( queue, QS_TIMER );
}
/* find a timer from its window and id */
static struct timer *find_timer( struct msg_queue *queue, user_handle_t win,
unsigned int msg, unsigned int id )
{
struct list *ptr;
/* we need to search both lists */
LIST_FOR_EACH( ptr, &queue->pending_timers )
{
struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
if (timer->win == win && timer->msg == msg && timer->id == id) return timer;
}
LIST_FOR_EACH( ptr, &queue->expired_timers )
{
struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
if (timer->win == win && timer->msg == msg && timer->id == id) return timer;
}
return NULL;
}
/* callback for the next timer expiration */
static void timer_callback( void *private )
{
struct msg_queue *queue = private;
struct list *ptr;
queue->timeout = NULL;
/* move on to the next timer */
set_next_timer( queue, queue->next_timer->next );
ptr = list_head( &queue->pending_timers );
list_remove( ptr );
list_add_tail( &queue->expired_timers, ptr );
set_next_timer( queue );
}
/* link a timer at its rightful place in the queue list */
static void link_timer( struct msg_queue *queue, struct timer *timer )
{
struct timer *pos = queue->next_timer;
struct list *ptr;
while (pos && time_before( &pos->when, &timer->when )) pos = pos->next;
if (pos) /* insert before pos */
for (ptr = queue->pending_timers.next; ptr != &queue->pending_timers; ptr = ptr->next)
{
if ((timer->prev = pos->prev)) timer->prev->next = timer;
else queue->first_timer = timer;
timer->next = pos;
pos->prev = timer;
struct timer *t = LIST_ENTRY( ptr, struct timer, entry );
if (!time_before( &t->when, &timer->when )) break;
}
else /* insert at end */
{
timer->next = NULL;
timer->prev = queue->last_timer;
if (queue->last_timer) queue->last_timer->next = timer;
else queue->first_timer = timer;
queue->last_timer = timer;
}
/* check if we replaced the next timer */
if (pos == queue->next_timer) set_next_timer( queue, timer );
list_add_before( ptr, &timer->entry );
}
/* remove a timer from the queue timer list */
static void unlink_timer( struct msg_queue *queue, struct timer *timer )
/* remove a timer from the queue timer list and free it */
static void free_timer( struct msg_queue *queue, struct timer *timer )
{
if (timer->next) timer->next->prev = timer->prev;
else queue->last_timer = timer->prev;
if (timer->prev) timer->prev->next = timer->next;
else queue->first_timer = timer->next;
/* check if we removed the next timer */
if (queue->next_timer == timer) set_next_timer( queue, timer->next );
else if (queue->next_timer == queue->first_timer) clear_queue_bits( queue, QS_TIMER );
list_remove( &timer->entry );
free( timer );
set_next_timer( queue );
}
/* restart an expired timer */
static void restart_timer( struct msg_queue *queue, struct timer *timer )
{
struct timeval now;
unlink_timer( queue, timer );
list_remove( &timer->entry );
gettimeofday( &now, 0 );
while (!time_before( &now, &timer->when )) add_timeout( &timer->when, timer->rate );
link_timer( queue, timer );
set_next_timer( queue );
}
/* find an expired timer matching the filtering parameters */
@ -935,9 +954,11 @@ static struct timer *find_expired_timer( struct msg_queue *queue, user_handle_t
unsigned int get_first, unsigned int get_last,
int remove )
{
struct timer *timer;
for (timer = queue->first_timer; (timer && timer != queue->next_timer); timer = timer->next)
struct list *ptr;
LIST_FOR_EACH( ptr, &queue->expired_timers )
{
struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
if (win && timer->win != win) continue;
if (timer->msg >= get_first && timer->msg <= get_last)
{
@ -948,32 +969,18 @@ static struct timer *find_expired_timer( struct msg_queue *queue, user_handle_t
return NULL;
}
/* kill a timer */
static int kill_timer( struct msg_queue *queue, user_handle_t win,
unsigned int msg, unsigned int id )
{
struct timer *timer;
for (timer = queue->first_timer; timer; timer = timer->next)
{
if (timer->win != win || timer->msg != msg || timer->id != id) continue;
unlink_timer( queue, timer );
free( timer );
return 1;
}
return 0;
}
/* add a timer */
static struct timer *set_timer( struct msg_queue *queue, unsigned int rate )
{
struct timer *timer = mem_alloc( sizeof(*timer) );
if (timer)
{
timer->rate = rate;
timer->rate = max( rate, 1 );
gettimeofday( &timer->when, 0 );
add_timeout( &timer->when, rate );
link_timer( queue, timer );
/* check if we replaced the next timer */
if (list_head( &queue->pending_timers ) == &timer->entry) set_next_timer( queue );
}
return timer;
}
@ -1219,23 +1226,29 @@ void inc_queue_paint_count( struct thread *thread, int incr )
void queue_cleanup_window( struct thread *thread, user_handle_t win )
{
struct msg_queue *queue = thread->queue;
struct timer *timer;
struct list *ptr;
struct message *msg;
int i;
if (!queue) return;
/* remove timers */
timer = queue->first_timer;
while (timer)
ptr = list_head( &queue->pending_timers );
while (ptr)
{
struct timer *next = timer->next;
if (timer->win == win)
{
unlink_timer( queue, timer );
free( timer );
}
timer = next;
struct list *next = list_next( &queue->pending_timers, ptr );
struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
if (timer->win == win) free_timer( queue, timer );
ptr = next;
}
ptr = list_head( &queue->expired_timers );
while (ptr)
{
struct list *next = list_next( &queue->expired_timers, ptr );
struct timer *timer = LIST_ENTRY( ptr, struct timer, entry );
if (timer->win == win) free_timer( queue, timer );
ptr = next;
}
/* remove messages */
@ -1569,30 +1582,80 @@ DECL_HANDLER(get_message_reply)
DECL_HANDLER(set_win_timer)
{
struct timer *timer;
struct msg_queue *queue = get_current_queue();
user_handle_t win = get_user_full_handle( req->win );
struct msg_queue *queue;
struct thread *thread = NULL;
user_handle_t win = 0;
unsigned int id = req->id;
if (!queue) return;
/* remove it if it existed already */
if (win) kill_timer( queue, win, req->msg, req->id );
if (req->win)
{
if (!(win = get_user_full_handle( req->win )) || !(thread = get_window_thread( win )))
{
set_error( STATUS_INVALID_HANDLE );
return;
}
if (thread->process != current->process)
{
release_object( thread );
set_error( STATUS_ACCESS_DENIED );
return;
}
queue = thread->queue;
/* remove it if it existed already */
if ((timer = find_timer( queue, win, req->msg, id ))) free_timer( queue, timer );
}
else
{
queue = get_current_queue();
/* find a free id for it */
do
{
id = queue->next_timer_id;
if (++queue->next_timer_id >= 0x10000) queue->next_timer_id = 1;
}
while (find_timer( queue, 0, req->msg, id ));
}
if ((timer = set_timer( queue, req->rate )))
{
timer->win = win;
timer->msg = req->msg;
timer->id = req->id;
timer->id = id;
timer->lparam = req->lparam;
reply->id = id;
}
if (thread) release_object( thread );
}
/* kill a window timer */
DECL_HANDLER(kill_win_timer)
{
struct msg_queue *queue = current->queue;
struct timer *timer;
struct thread *thread;
user_handle_t win = 0;
if (!queue || !kill_timer( queue, get_user_full_handle(req->win), req->msg, req->id ))
if (req->win)
{
if (!(win = get_user_full_handle( req->win )) || !(thread = get_window_thread( win )))
{
set_error( STATUS_INVALID_HANDLE );
return;
}
if (thread->process != current->process)
{
release_object( thread );
set_error( STATUS_ACCESS_DENIED );
return;
}
}
else thread = (struct thread *)grab_object( current );
if (thread->queue && (timer = find_timer( thread->queue, win, req->msg, req->id )))
free_timer( thread->queue, timer );
else
set_error( STATUS_INVALID_PARAMETER );
release_object( thread );
}

7
server/trace.c
View file

@ -1881,6 +1881,11 @@ static void dump_set_win_timer_request( const struct set_win_timer_request *req
fprintf( stderr, " lparam=%08x", req->lparam );
}
static void dump_set_win_timer_reply( const struct set_win_timer_reply *req )
{
fprintf( stderr, " id=%08x", req->id );
}
static void dump_kill_win_timer_request( const struct kill_win_timer_request *req )
{
fprintf( stderr, " win=%p,", req->win );
@ -2851,7 +2856,7 @@ static const dump_func reply_dumpers[REQ_NB_REQUESTS] = {
(dump_func)dump_get_message_reply,
(dump_func)0,
(dump_func)dump_get_message_reply_reply,
(dump_func)0,
(dump_func)dump_set_win_timer_reply,
(dump_func)0,
(dump_func)dump_get_serial_info_reply,
(dump_func)0,