1702 lines
52 KiB
C
1702 lines
52 KiB
C
/*
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* Server-side message queues
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*
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* Copyright (C) 2000 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "handle.h"
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#include "thread.h"
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#include "process.h"
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#include "request.h"
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#include "user.h"
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enum message_kind { SEND_MESSAGE, POST_MESSAGE };
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#define NB_MSG_KINDS (POST_MESSAGE+1)
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struct message_result
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{
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struct message_result *send_next; /* next in sender list */
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struct message_result *recv_next; /* next in receiver list */
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struct msg_queue *sender; /* sender queue */
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struct msg_queue *receiver; /* receiver queue */
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int replied; /* has it been replied to? */
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unsigned int result; /* reply result */
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unsigned int error; /* error code to pass back to sender */
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void *data; /* message reply data */
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unsigned int data_size; /* size of message reply data */
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struct timeout_user *timeout; /* result timeout */
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};
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struct message
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{
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struct message *next; /* next message in list */
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struct message *prev; /* prev message in list */
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enum message_type type; /* message type */
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user_handle_t win; /* window handle */
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unsigned int msg; /* message code */
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unsigned int wparam; /* parameters */
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unsigned int lparam; /* parameters */
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int x; /* x position */
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int y; /* y position */
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unsigned int time; /* message time */
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unsigned int info; /* extra info */
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void *data; /* message data for sent messages */
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unsigned int data_size; /* size of message data */
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struct message_result *result; /* result in sender queue */
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};
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struct message_list
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{
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struct message *first; /* head of list */
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struct message *last; /* tail of list */
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};
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struct timer
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{
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struct timer *next; /* next timer in list */
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struct timer *prev; /* prev timer in list */
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struct timeval when; /* next expiration */
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unsigned int rate; /* timer rate in ms */
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user_handle_t win; /* window handle */
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unsigned int msg; /* message to post */
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unsigned int id; /* timer id */
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unsigned int lparam; /* lparam for message */
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};
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struct thread_input
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{
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struct object obj; /* object header */
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user_handle_t focus; /* focus window */
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user_handle_t capture; /* capture window */
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user_handle_t active; /* active window */
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user_handle_t menu_owner; /* current menu owner window */
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user_handle_t move_size; /* current moving/resizing window */
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user_handle_t caret; /* caret window */
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rectangle_t caret_rect; /* caret rectangle */
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int caret_hide; /* caret hide count */
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int caret_state; /* caret on/off state */
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struct message *msg; /* message currently processed */
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struct thread *msg_thread; /* thread processing the message */
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struct message_list msg_list; /* list of hardware messages */
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unsigned char keystate[256]; /* state of each key */
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};
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struct msg_queue
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{
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struct object obj; /* object header */
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unsigned int wake_bits; /* wakeup bits */
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unsigned int wake_mask; /* wakeup mask */
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unsigned int changed_bits; /* changed wakeup bits */
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unsigned int changed_mask; /* changed wakeup mask */
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int paint_count; /* pending paint messages count */
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struct message_list msg_list[NB_MSG_KINDS]; /* lists of messages */
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struct message_result *send_result; /* stack of sent messages waiting for result */
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struct message_result *recv_result; /* stack of received messages waiting for result */
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struct timer *first_timer; /* head of timer list */
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struct timer *last_timer; /* tail of timer list */
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struct timer *next_timer; /* next timer to expire */
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struct timeout_user *timeout; /* timeout for next timer to expire */
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struct thread_input *input; /* thread input descriptor */
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};
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static void msg_queue_dump( struct object *obj, int verbose );
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static int msg_queue_add_queue( struct object *obj, struct wait_queue_entry *entry );
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static void msg_queue_remove_queue( struct object *obj, struct wait_queue_entry *entry );
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static int msg_queue_signaled( struct object *obj, struct thread *thread );
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static int msg_queue_satisfied( struct object *obj, struct thread *thread );
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static void msg_queue_destroy( struct object *obj );
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static void thread_input_dump( struct object *obj, int verbose );
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static void thread_input_destroy( struct object *obj );
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static void timer_callback( void *private );
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static const struct object_ops msg_queue_ops =
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{
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sizeof(struct msg_queue), /* size */
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msg_queue_dump, /* dump */
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msg_queue_add_queue, /* add_queue */
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msg_queue_remove_queue, /* remove_queue */
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msg_queue_signaled, /* signaled */
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msg_queue_satisfied, /* satisfied */
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NULL, /* get_poll_events */
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NULL, /* poll_event */
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no_get_fd, /* get_fd */
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no_flush, /* flush */
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no_get_file_info, /* get_file_info */
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NULL, /* queue_async */
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msg_queue_destroy /* destroy */
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};
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static const struct object_ops thread_input_ops =
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{
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sizeof(struct thread_input), /* size */
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thread_input_dump, /* dump */
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no_add_queue, /* add_queue */
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NULL, /* remove_queue */
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NULL, /* signaled */
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NULL, /* satisfied */
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NULL, /* get_poll_events */
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NULL, /* poll_event */
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no_get_fd, /* get_fd */
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no_flush, /* flush */
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no_get_file_info, /* get_file_info */
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NULL, /* queue_async */
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thread_input_destroy /* destroy */
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};
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/* pointer to input structure of foreground thread */
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static struct thread_input *foreground_input;
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/* set the caret window in a given thread input */
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static void set_caret_window( struct thread_input *input, user_handle_t win )
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{
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input->caret = win;
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input->caret_rect.left = 0;
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input->caret_rect.top = 0;
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input->caret_rect.right = 0;
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input->caret_rect.bottom = 0;
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input->caret_hide = 1;
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input->caret_state = 0;
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}
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/* create a thread input object */
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static struct thread_input *create_thread_input(void)
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{
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struct thread_input *input;
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if ((input = alloc_object( &thread_input_ops, -1 )))
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{
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input->focus = 0;
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input->capture = 0;
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input->active = 0;
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input->menu_owner = 0;
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input->move_size = 0;
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input->msg = NULL;
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input->msg_thread = NULL;
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input->msg_list.first = input->msg_list.last = NULL;
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set_caret_window( input, 0 );
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memset( input->keystate, 0, sizeof(input->keystate) );
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}
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return input;
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}
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/* create a message queue object */
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static struct msg_queue *create_msg_queue( struct thread *thread, struct thread_input *input )
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{
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struct msg_queue *queue;
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int i;
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if (!input && !(input = create_thread_input())) return NULL;
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if ((queue = alloc_object( &msg_queue_ops, -1 )))
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{
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queue->wake_bits = 0;
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queue->wake_mask = 0;
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queue->changed_bits = 0;
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queue->changed_mask = 0;
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queue->paint_count = 0;
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queue->send_result = NULL;
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queue->recv_result = NULL;
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queue->first_timer = NULL;
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queue->last_timer = NULL;
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queue->next_timer = NULL;
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queue->timeout = NULL;
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queue->input = (struct thread_input *)grab_object( input );
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for (i = 0; i < NB_MSG_KINDS; i++)
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queue->msg_list[i].first = queue->msg_list[i].last = NULL;
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thread->queue = queue;
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if (!thread->process->queue)
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thread->process->queue = (struct msg_queue *)grab_object( queue );
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}
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release_object( input );
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return queue;
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}
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/* free the message queue of a thread at thread exit */
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void free_msg_queue( struct thread *thread )
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{
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struct process *process = thread->process;
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if (!thread->queue) return;
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if (process->queue == thread->queue) /* is it the process main queue? */
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{
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release_object( process->queue );
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process->queue = NULL;
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if (process->idle_event)
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{
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set_event( process->idle_event );
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release_object( process->idle_event );
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process->idle_event = NULL;
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}
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}
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release_object( thread->queue );
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thread->queue = NULL;
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}
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/* check the queue status */
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inline static int is_signaled( struct msg_queue *queue )
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{
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return ((queue->wake_bits & queue->wake_mask) || (queue->changed_bits & queue->changed_mask));
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}
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/* set some queue bits */
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inline static void set_queue_bits( struct msg_queue *queue, unsigned int bits )
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{
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queue->wake_bits |= bits;
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queue->changed_bits |= bits;
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if (is_signaled( queue )) wake_up( &queue->obj, 0 );
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}
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/* clear some queue bits */
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inline static void clear_queue_bits( struct msg_queue *queue, unsigned int bits )
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{
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queue->wake_bits &= ~bits;
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queue->changed_bits &= ~bits;
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}
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/* check whether msg is a keyboard message */
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inline static int is_keyboard_msg( struct message *msg )
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{
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return (msg->msg >= WM_KEYFIRST && msg->msg <= WM_KEYLAST);
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}
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/* get the QS_* bit corresponding to a given hardware message */
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inline static int get_hardware_msg_bit( struct message *msg )
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{
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if (msg->msg == WM_MOUSEMOVE || msg->msg == WM_NCMOUSEMOVE) return QS_MOUSEMOVE;
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if (is_keyboard_msg( msg )) return QS_KEY;
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return QS_MOUSEBUTTON;
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}
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/* get the current thread queue, creating it if needed */
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inline static struct msg_queue *get_current_queue(void)
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{
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struct msg_queue *queue = current->queue;
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if (!queue) queue = create_msg_queue( current, NULL );
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return queue;
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}
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/* append a message to the end of a list */
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inline static void append_message( struct message_list *list, struct message *msg )
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{
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msg->next = NULL;
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if ((msg->prev = list->last)) msg->prev->next = msg;
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else list->first = msg;
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list->last = msg;
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}
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/* unlink a message from a list it */
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inline static void unlink_message( struct message_list *list, struct message *msg )
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{
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if (msg->next) msg->next->prev = msg->prev;
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else list->last = msg->prev;
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if (msg->prev) msg->prev->next = msg->next;
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else list->first = msg->next;
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}
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/* try to merge a message with the last in the list; return 1 if successful */
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static int merge_message( struct thread_input *input, const struct message *msg )
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{
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struct message *prev = input->msg_list.last;
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if (!prev) return 0;
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if (input->msg == prev) return 0;
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if (prev->result) return 0;
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if (prev->win != msg->win) return 0;
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if (prev->msg != msg->msg) return 0;
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if (prev->type != msg->type) return 0;
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/* now we can merge it */
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prev->wparam = msg->wparam;
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prev->lparam = msg->lparam;
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prev->x = msg->x;
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prev->y = msg->y;
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prev->time = msg->time;
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prev->info = msg->info;
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return 1;
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}
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/* free a result structure */
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static void free_result( struct message_result *result )
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{
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if (result->timeout) remove_timeout_user( result->timeout );
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if (result->data) free( result->data );
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free( result );
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}
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/* store the message result in the appropriate structure */
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static void store_message_result( struct message_result *res, unsigned int result,
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unsigned int error )
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{
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res->result = result;
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res->error = error;
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res->replied = 1;
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if (res->timeout)
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{
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remove_timeout_user( res->timeout );
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res->timeout = NULL;
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}
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/* wake sender queue if waiting on this result */
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if (res->sender && res->sender->send_result == res)
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set_queue_bits( res->sender, QS_SMRESULT );
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}
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/* free a message when deleting a queue or window */
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static void free_message( struct message *msg )
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{
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struct message_result *result = msg->result;
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if (result)
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{
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if (result->sender)
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{
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result->receiver = NULL;
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store_message_result( result, 0, STATUS_ACCESS_DENIED /*FIXME*/ );
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}
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else free_result( result );
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}
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if (msg->data) free( msg->data );
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free( msg );
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}
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/* remove (and free) a message from a message list */
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static void remove_queue_message( struct msg_queue *queue, struct message *msg,
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enum message_kind kind )
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{
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unlink_message( &queue->msg_list[kind], msg );
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switch(kind)
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{
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case SEND_MESSAGE:
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if (!queue->msg_list[kind].first) clear_queue_bits( queue, QS_SENDMESSAGE );
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break;
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case POST_MESSAGE:
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if (!queue->msg_list[kind].first) clear_queue_bits( queue, QS_POSTMESSAGE );
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break;
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}
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free_message( msg );
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}
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/* message timed out without getting a reply */
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static void result_timeout( void *private )
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{
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struct message_result *result = private;
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assert( !result->replied );
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result->timeout = NULL;
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store_message_result( result, 0, STATUS_TIMEOUT );
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}
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/* allocate and fill a message result structure */
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static struct message_result *alloc_message_result( struct msg_queue *send_queue,
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struct msg_queue *recv_queue,
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unsigned int timeout )
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{
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struct message_result *result = mem_alloc( sizeof(*result) );
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if (result)
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{
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/* put the result on the sender result stack */
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result->sender = send_queue;
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result->receiver = recv_queue;
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result->replied = 0;
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result->data = NULL;
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result->data_size = 0;
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result->timeout = NULL;
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result->send_next = send_queue->send_result;
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send_queue->send_result = result;
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if (timeout != -1)
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{
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struct timeval when;
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gettimeofday( &when, 0 );
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add_timeout( &when, timeout );
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result->timeout = add_timeout_user( &when, result_timeout, result );
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}
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}
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return result;
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}
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/* receive a message, removing it from the sent queue */
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static void receive_message( struct msg_queue *queue, struct message *msg,
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struct get_message_reply *reply )
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{
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struct message_result *result = msg->result;
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reply->total = msg->data_size;
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if (msg->data_size > get_reply_max_size())
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{
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set_error( STATUS_BUFFER_OVERFLOW );
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return;
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}
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reply->type = msg->type;
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reply->win = msg->win;
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reply->msg = msg->msg;
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reply->wparam = msg->wparam;
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reply->lparam = msg->lparam;
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reply->x = msg->x;
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reply->y = msg->y;
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reply->time = msg->time;
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reply->info = msg->info;
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if (msg->data) set_reply_data_ptr( msg->data, msg->data_size );
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unlink_message( &queue->msg_list[SEND_MESSAGE], msg );
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/* put the result on the receiver result stack */
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if (result)
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{
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result->recv_next = queue->recv_result;
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queue->recv_result = result;
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}
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free( msg );
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if (!queue->msg_list[SEND_MESSAGE].first) clear_queue_bits( queue, QS_SENDMESSAGE );
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}
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/* set the result of the current received message */
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static void reply_message( struct msg_queue *queue, unsigned int result,
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unsigned int error, int remove, const void *data, size_t len )
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{
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struct message_result *res = queue->recv_result;
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if (remove)
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{
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queue->recv_result = res->recv_next;
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res->receiver = NULL;
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if (!res->sender) /* no one waiting for it */
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{
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free_result( res );
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return;
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}
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}
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if (!res->replied)
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{
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if (len && (res->data = memdup( data, len ))) res->data_size = len;
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store_message_result( res, result, error );
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}
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}
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/* retrieve a posted message */
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static int get_posted_message( struct msg_queue *queue, user_handle_t win,
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unsigned int first, unsigned int last, unsigned int flags,
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struct get_message_reply *reply )
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{
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struct message *msg;
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struct message_list *list = &queue->msg_list[POST_MESSAGE];
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/* check against the filters */
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for (msg = list->first; msg; msg = msg->next)
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{
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if (msg->msg == WM_QUIT) break; /* WM_QUIT is never filtered */
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if (win && msg->win && msg->win != win && !is_child_window( win, msg->win )) continue;
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if (msg->msg < first) continue;
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if (msg->msg > last) continue;
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break; /* found one */
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}
|
|
if (!msg) return 0;
|
|
|
|
/* return it to the app */
|
|
|
|
reply->total = msg->data_size;
|
|
if (msg->data_size > get_reply_max_size())
|
|
{
|
|
set_error( STATUS_BUFFER_OVERFLOW );
|
|
return 1;
|
|
}
|
|
reply->type = msg->type;
|
|
reply->win = msg->win;
|
|
reply->msg = msg->msg;
|
|
reply->wparam = msg->wparam;
|
|
reply->lparam = msg->lparam;
|
|
reply->x = msg->x;
|
|
reply->y = msg->y;
|
|
reply->time = msg->time;
|
|
reply->info = msg->info;
|
|
|
|
if (flags & GET_MSG_REMOVE)
|
|
{
|
|
if (msg->data)
|
|
{
|
|
set_reply_data_ptr( msg->data, msg->data_size );
|
|
msg->data = NULL;
|
|
msg->data_size = 0;
|
|
}
|
|
remove_queue_message( queue, msg, POST_MESSAGE );
|
|
}
|
|
else if (msg->data) set_reply_data( msg->data, msg->data_size );
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* empty a message list and free all the messages */
|
|
static void empty_msg_list( struct message_list *list )
|
|
{
|
|
struct message *msg = list->first;
|
|
while (msg)
|
|
{
|
|
struct message *next = msg->next;
|
|
free_message( msg );
|
|
msg = next;
|
|
}
|
|
}
|
|
|
|
/* cleanup all pending results when deleting a queue */
|
|
static void cleanup_results( struct msg_queue *queue )
|
|
{
|
|
struct message_result *result, *next;
|
|
|
|
result = queue->send_result;
|
|
while (result)
|
|
{
|
|
next = result->send_next;
|
|
result->sender = NULL;
|
|
if (!result->receiver) free_result( result );
|
|
result = next;
|
|
}
|
|
|
|
while (queue->recv_result)
|
|
reply_message( queue, 0, STATUS_ACCESS_DENIED /*FIXME*/, 1, NULL, 0 );
|
|
}
|
|
|
|
static int msg_queue_add_queue( struct object *obj, struct wait_queue_entry *entry )
|
|
{
|
|
struct msg_queue *queue = (struct msg_queue *)obj;
|
|
struct process *process = entry->thread->process;
|
|
|
|
/* a thread can only wait on its own queue */
|
|
if (entry->thread->queue != queue)
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return 0;
|
|
}
|
|
/* if waiting on the main process queue, set the idle event */
|
|
if (process->queue == queue)
|
|
{
|
|
if (process->idle_event) set_event( process->idle_event );
|
|
}
|
|
add_queue( obj, entry );
|
|
return 1;
|
|
}
|
|
|
|
static void msg_queue_remove_queue(struct object *obj, struct wait_queue_entry *entry )
|
|
{
|
|
struct msg_queue *queue = (struct msg_queue *)obj;
|
|
struct process *process = entry->thread->process;
|
|
|
|
remove_queue( obj, entry );
|
|
|
|
assert( entry->thread->queue == queue );
|
|
|
|
/* if waiting on the main process queue, reset the idle event */
|
|
if (process->queue == queue)
|
|
{
|
|
if (process->idle_event) reset_event( process->idle_event );
|
|
}
|
|
}
|
|
|
|
static void msg_queue_dump( struct object *obj, int verbose )
|
|
{
|
|
struct msg_queue *queue = (struct msg_queue *)obj;
|
|
fprintf( stderr, "Msg queue bits=%x mask=%x\n",
|
|
queue->wake_bits, queue->wake_mask );
|
|
}
|
|
|
|
static int msg_queue_signaled( struct object *obj, struct thread *thread )
|
|
{
|
|
struct msg_queue *queue = (struct msg_queue *)obj;
|
|
return is_signaled( queue );
|
|
}
|
|
|
|
static int msg_queue_satisfied( struct object *obj, struct thread *thread )
|
|
{
|
|
struct msg_queue *queue = (struct msg_queue *)obj;
|
|
queue->wake_mask = 0;
|
|
queue->changed_mask = 0;
|
|
return 0; /* Not abandoned */
|
|
}
|
|
|
|
static void msg_queue_destroy( struct object *obj )
|
|
{
|
|
struct msg_queue *queue = (struct msg_queue *)obj;
|
|
struct timer *timer = queue->first_timer;
|
|
int i;
|
|
|
|
cleanup_results( queue );
|
|
for (i = 0; i < NB_MSG_KINDS; i++) empty_msg_list( &queue->msg_list[i] );
|
|
|
|
while (timer)
|
|
{
|
|
struct timer *next = timer->next;
|
|
free( timer );
|
|
timer = next;
|
|
}
|
|
if (queue->timeout) remove_timeout_user( queue->timeout );
|
|
if (queue->input) release_object( queue->input );
|
|
}
|
|
|
|
static void thread_input_dump( struct object *obj, int verbose )
|
|
{
|
|
struct thread_input *input = (struct thread_input *)obj;
|
|
fprintf( stderr, "Thread input focus=%p capture=%p active=%p\n",
|
|
input->focus, input->capture, input->active );
|
|
}
|
|
|
|
static void thread_input_destroy( struct object *obj )
|
|
{
|
|
struct thread_input *input = (struct thread_input *)obj;
|
|
|
|
if (foreground_input == input) foreground_input = NULL;
|
|
if (input->msg_thread) release_object( input->msg_thread );
|
|
empty_msg_list( &input->msg_list );
|
|
}
|
|
|
|
/* fix the thread input data when a window is destroyed */
|
|
inline static void thread_input_cleanup_window( struct msg_queue *queue, user_handle_t window )
|
|
{
|
|
struct thread_input *input = queue->input;
|
|
|
|
if (window == input->focus) input->focus = 0;
|
|
if (window == input->capture) input->capture = 0;
|
|
if (window == input->active) input->active = 0;
|
|
if (window == input->menu_owner) input->menu_owner = 0;
|
|
if (window == input->move_size) input->move_size = 0;
|
|
if (window == input->caret) set_caret_window( input, 0 );
|
|
}
|
|
|
|
/* check if the specified window can be set in the input data of a given queue */
|
|
static int check_queue_input_window( struct msg_queue *queue, user_handle_t window )
|
|
{
|
|
struct thread *thread;
|
|
int ret = 0;
|
|
|
|
if (!window) return 1; /* we can always clear the data */
|
|
|
|
if ((thread = get_window_thread( window )))
|
|
{
|
|
ret = (queue->input == thread->queue->input);
|
|
if (!ret) set_error( STATUS_ACCESS_DENIED );
|
|
release_object( thread );
|
|
}
|
|
else set_error( STATUS_INVALID_HANDLE );
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* attach two thread input data structures */
|
|
int attach_thread_input( struct thread *thread_from, struct thread *thread_to )
|
|
{
|
|
struct thread_input *input;
|
|
|
|
if (!thread_to->queue && !(thread_to->queue = create_msg_queue( thread_to, NULL ))) return 0;
|
|
input = (struct thread_input *)grab_object( thread_to->queue->input );
|
|
|
|
if (thread_from->queue)
|
|
{
|
|
release_object( thread_from->queue->input );
|
|
thread_from->queue->input = input;
|
|
}
|
|
else
|
|
{
|
|
if (!(thread_from->queue = create_msg_queue( thread_from, input ))) return 0;
|
|
}
|
|
memset( input->keystate, 0, sizeof(input->keystate) );
|
|
return 1;
|
|
}
|
|
|
|
/* detach two thread input data structures */
|
|
static void detach_thread_input( struct thread *thread_from, struct thread *thread_to )
|
|
{
|
|
struct thread_input *input;
|
|
|
|
if (!thread_from->queue || !thread_to->queue ||
|
|
thread_from->queue->input != thread_to->queue->input)
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
if ((input = create_thread_input()))
|
|
{
|
|
release_object( thread_from->queue->input );
|
|
thread_from->queue->input = input;
|
|
}
|
|
}
|
|
|
|
|
|
/* set the next timer to expire */
|
|
static void set_next_timer( struct msg_queue *queue, struct timer *timer )
|
|
{
|
|
if (queue->timeout)
|
|
{
|
|
remove_timeout_user( queue->timeout );
|
|
queue->timeout = NULL;
|
|
}
|
|
if ((queue->next_timer = timer))
|
|
queue->timeout = add_timeout_user( &timer->when, timer_callback, queue );
|
|
|
|
/* set/clear QS_TIMER bit */
|
|
if (queue->next_timer == queue->first_timer)
|
|
clear_queue_bits( queue, QS_TIMER );
|
|
else
|
|
set_queue_bits( queue, QS_TIMER );
|
|
}
|
|
|
|
/* callback for the next timer expiration */
|
|
static void timer_callback( void *private )
|
|
{
|
|
struct msg_queue *queue = private;
|
|
|
|
queue->timeout = NULL;
|
|
/* move on to the next timer */
|
|
set_next_timer( queue, queue->next_timer->next );
|
|
}
|
|
|
|
/* 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;
|
|
|
|
while (pos && time_before( &pos->when, &timer->when )) pos = pos->next;
|
|
|
|
if (pos) /* insert before pos */
|
|
{
|
|
if ((timer->prev = pos->prev)) timer->prev->next = timer;
|
|
else queue->first_timer = timer;
|
|
timer->next = pos;
|
|
pos->prev = timer;
|
|
}
|
|
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 );
|
|
}
|
|
|
|
/* remove a timer from the queue timer list */
|
|
static void unlink_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 );
|
|
}
|
|
|
|
/* restart an expired timer */
|
|
static void restart_timer( struct msg_queue *queue, struct timer *timer )
|
|
{
|
|
struct timeval now;
|
|
unlink_timer( queue, timer );
|
|
gettimeofday( &now, 0 );
|
|
while (!time_before( &now, &timer->when )) add_timeout( &timer->when, timer->rate );
|
|
link_timer( queue, timer );
|
|
}
|
|
|
|
/* find an expired timer matching the filtering parameters */
|
|
static struct timer *find_expired_timer( struct msg_queue *queue, user_handle_t win,
|
|
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)
|
|
{
|
|
if (win && timer->win != win) continue;
|
|
if (timer->msg >= get_first && timer->msg <= get_last)
|
|
{
|
|
if (remove) restart_timer( queue, timer );
|
|
return timer;
|
|
}
|
|
}
|
|
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;
|
|
gettimeofday( &timer->when, 0 );
|
|
add_timeout( &timer->when, rate );
|
|
link_timer( queue, timer );
|
|
}
|
|
return timer;
|
|
}
|
|
|
|
/* change the input key state for a given key */
|
|
static void set_input_key_state( struct thread_input *input, unsigned char key, int down )
|
|
{
|
|
if (down)
|
|
{
|
|
if (!(input->keystate[key] & 0x80)) input->keystate[key] ^= 0x01;
|
|
input->keystate[key] |= 0x80;
|
|
}
|
|
else input->keystate[key] &= ~0x80;
|
|
}
|
|
|
|
/* update the input key state for a keyboard message */
|
|
static void update_input_key_state( struct thread_input *input, const struct message *msg )
|
|
{
|
|
unsigned char key;
|
|
int down = 0, extended;
|
|
|
|
switch (msg->msg)
|
|
{
|
|
case WM_LBUTTONDOWN:
|
|
down = 1;
|
|
/* fall through */
|
|
case WM_LBUTTONUP:
|
|
set_input_key_state( input, VK_LBUTTON, down );
|
|
break;
|
|
case WM_MBUTTONDOWN:
|
|
down = 1;
|
|
/* fall through */
|
|
case WM_MBUTTONUP:
|
|
set_input_key_state( input, VK_MBUTTON, down );
|
|
break;
|
|
case WM_RBUTTONDOWN:
|
|
down = 1;
|
|
/* fall through */
|
|
case WM_RBUTTONUP:
|
|
set_input_key_state( input, VK_RBUTTON, down );
|
|
break;
|
|
case WM_KEYDOWN:
|
|
case WM_SYSKEYDOWN:
|
|
down = 1;
|
|
/* fall through */
|
|
case WM_KEYUP:
|
|
case WM_SYSKEYUP:
|
|
key = (unsigned char)msg->wparam;
|
|
extended = ((msg->lparam >> 16) & KF_EXTENDED) != 0;
|
|
set_input_key_state( input, key, down );
|
|
switch(key)
|
|
{
|
|
case VK_SHIFT:
|
|
set_input_key_state( input, extended ? VK_RSHIFT : VK_LSHIFT, down );
|
|
break;
|
|
case VK_CONTROL:
|
|
set_input_key_state( input, extended ? VK_RCONTROL : VK_LCONTROL, down );
|
|
break;
|
|
case VK_MENU:
|
|
set_input_key_state( input, extended ? VK_RMENU : VK_LMENU, down );
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* release the hardware message currently being processed by the given thread */
|
|
static void release_hardware_message( struct thread *thread, int remove )
|
|
{
|
|
struct thread_input *input = thread->queue->input;
|
|
|
|
if (input->msg_thread != thread) return;
|
|
if (remove)
|
|
{
|
|
struct message *other;
|
|
int clr_bit;
|
|
|
|
update_input_key_state( input, input->msg );
|
|
unlink_message( &input->msg_list, input->msg );
|
|
clr_bit = get_hardware_msg_bit( input->msg );
|
|
for (other = input->msg_list.first; other; other = other->next)
|
|
if (get_hardware_msg_bit( other ) == clr_bit) break;
|
|
if (!other) clear_queue_bits( thread->queue, clr_bit );
|
|
free_message( input->msg );
|
|
}
|
|
release_object( input->msg_thread );
|
|
input->msg = NULL;
|
|
input->msg_thread = NULL;
|
|
}
|
|
|
|
/* find the window that should receive a given hardware message */
|
|
static user_handle_t find_hardware_message_window( struct thread_input *input, struct message *msg,
|
|
unsigned int *msg_code )
|
|
{
|
|
user_handle_t win = 0;
|
|
|
|
*msg_code = msg->msg;
|
|
if (is_keyboard_msg( msg ))
|
|
{
|
|
if (input && !(win = input->focus))
|
|
{
|
|
win = input->active;
|
|
if (*msg_code < WM_SYSKEYDOWN) *msg_code += WM_SYSKEYDOWN - WM_KEYDOWN;
|
|
}
|
|
}
|
|
else /* mouse message */
|
|
{
|
|
if (!input || !(win = input->capture))
|
|
{
|
|
if (!(win = msg->win)) win = window_from_point( msg->x, msg->y );
|
|
}
|
|
}
|
|
return win;
|
|
}
|
|
|
|
/* queue a hardware message into a given thread input */
|
|
static void queue_hardware_message( struct msg_queue *queue, struct message *msg )
|
|
{
|
|
user_handle_t win;
|
|
struct thread *thread;
|
|
struct thread_input *input;
|
|
unsigned int msg_code;
|
|
|
|
win = find_hardware_message_window( queue ? queue->input : foreground_input, msg, &msg_code );
|
|
if (!win || !(thread = get_window_thread(win)))
|
|
{
|
|
free( msg );
|
|
return;
|
|
}
|
|
input = thread->queue->input;
|
|
|
|
if (msg->msg == WM_MOUSEMOVE && merge_message( input, msg )) free( msg );
|
|
else
|
|
{
|
|
append_message( &input->msg_list, msg );
|
|
set_queue_bits( thread->queue, get_hardware_msg_bit(msg) );
|
|
}
|
|
release_object( thread );
|
|
}
|
|
|
|
/* find a hardware message for the given queue */
|
|
static int get_hardware_message( struct thread *thread, struct message *first,
|
|
user_handle_t filter_win, struct get_message_reply *reply )
|
|
{
|
|
struct thread_input *input = thread->queue->input;
|
|
struct thread *win_thread;
|
|
struct message *msg;
|
|
user_handle_t win;
|
|
int clear_bits, got_one = 0;
|
|
unsigned int msg_code;
|
|
|
|
if (input->msg_thread && input->msg_thread != thread)
|
|
return 0; /* locked by another thread */
|
|
|
|
if (!first)
|
|
{
|
|
msg = input->msg_list.first;
|
|
clear_bits = QS_KEY | QS_MOUSEMOVE | QS_MOUSEBUTTON;
|
|
}
|
|
else
|
|
{
|
|
msg = first->next;
|
|
clear_bits = 0; /* don't clear bits if we don't go through the whole list */
|
|
}
|
|
|
|
while (msg)
|
|
{
|
|
win = find_hardware_message_window( input, msg, &msg_code );
|
|
if (!win || !(win_thread = get_window_thread( win )))
|
|
{
|
|
/* no window at all, remove it */
|
|
struct message *next = msg->next;
|
|
update_input_key_state( input, msg );
|
|
unlink_message( &input->msg_list, msg );
|
|
free_message( msg );
|
|
msg = next;
|
|
continue;
|
|
}
|
|
if (win_thread != thread)
|
|
{
|
|
/* wake the other thread */
|
|
set_queue_bits( win_thread->queue, get_hardware_msg_bit(msg) );
|
|
release_object( win_thread );
|
|
got_one = 1;
|
|
msg = msg->next;
|
|
continue;
|
|
}
|
|
/* if we already got a message for another thread, or if it doesn't
|
|
* match the filter we skip it (filter is only checked for keyboard
|
|
* messages since the dest window for a mouse message depends on hittest)
|
|
*/
|
|
if (got_one ||
|
|
(filter_win && is_keyboard_msg(msg) &&
|
|
win != filter_win && !is_child_window( filter_win, win )))
|
|
{
|
|
clear_bits &= ~get_hardware_msg_bit( msg );
|
|
msg = msg->next;
|
|
continue;
|
|
}
|
|
/* now we can return it */
|
|
if (!input->msg_thread) input->msg_thread = win_thread;
|
|
else release_object( win_thread );
|
|
input->msg = msg;
|
|
|
|
reply->type = MSG_HARDWARE;
|
|
reply->win = win;
|
|
reply->msg = msg_code;
|
|
reply->wparam = msg->wparam;
|
|
reply->lparam = msg->lparam;
|
|
reply->x = msg->x;
|
|
reply->y = msg->y;
|
|
reply->time = msg->time;
|
|
reply->info = msg->info;
|
|
return 1;
|
|
}
|
|
/* nothing found, clear the hardware queue bits */
|
|
clear_queue_bits( thread->queue, clear_bits );
|
|
if (input->msg_thread) release_object( input->msg_thread );
|
|
input->msg = NULL;
|
|
input->msg_thread = NULL;
|
|
return 0;
|
|
}
|
|
|
|
/* increment (or decrement if 'incr' is negative) the queue paint count */
|
|
void inc_queue_paint_count( struct thread *thread, int incr )
|
|
{
|
|
struct msg_queue *queue = thread->queue;
|
|
|
|
assert( queue );
|
|
|
|
if ((queue->paint_count += incr) < 0) queue->paint_count = 0;
|
|
|
|
if (queue->paint_count)
|
|
set_queue_bits( queue, QS_PAINT );
|
|
else
|
|
clear_queue_bits( queue, QS_PAINT );
|
|
}
|
|
|
|
|
|
/* remove all messages and timers belonging to a certain window */
|
|
void queue_cleanup_window( struct thread *thread, user_handle_t win )
|
|
{
|
|
struct msg_queue *queue = thread->queue;
|
|
struct timer *timer;
|
|
struct message *msg;
|
|
int i;
|
|
|
|
if (!queue) return;
|
|
|
|
/* remove timers */
|
|
timer = queue->first_timer;
|
|
while (timer)
|
|
{
|
|
struct timer *next = timer->next;
|
|
if (timer->win == win)
|
|
{
|
|
unlink_timer( queue, timer );
|
|
free( timer );
|
|
}
|
|
timer = next;
|
|
}
|
|
|
|
/* remove messages */
|
|
for (i = 0; i < NB_MSG_KINDS; i++)
|
|
{
|
|
msg = queue->msg_list[i].first;
|
|
while (msg)
|
|
{
|
|
struct message *next = msg->next;
|
|
if (msg->win == win) remove_queue_message( queue, msg, i );
|
|
msg = next;
|
|
}
|
|
}
|
|
|
|
thread_input_cleanup_window( queue, win );
|
|
}
|
|
|
|
/* post a message to a window; used by socket handling */
|
|
void post_message( user_handle_t win, unsigned int message,
|
|
unsigned int wparam, unsigned int lparam )
|
|
{
|
|
struct message *msg;
|
|
struct thread *thread = get_window_thread( win );
|
|
|
|
if (!thread) return;
|
|
|
|
if (thread->queue && (msg = mem_alloc( sizeof(*msg) )))
|
|
{
|
|
msg->type = MSG_POSTED;
|
|
msg->win = get_user_full_handle( win );
|
|
msg->msg = message;
|
|
msg->wparam = wparam;
|
|
msg->lparam = lparam;
|
|
msg->time = get_tick_count();
|
|
msg->x = 0;
|
|
msg->y = 0;
|
|
msg->info = 0;
|
|
msg->result = NULL;
|
|
msg->data = NULL;
|
|
msg->data_size = 0;
|
|
|
|
append_message( &thread->queue->msg_list[POST_MESSAGE], msg );
|
|
set_queue_bits( thread->queue, QS_POSTMESSAGE );
|
|
}
|
|
release_object( thread );
|
|
}
|
|
|
|
|
|
/* get the message queue of the current thread */
|
|
DECL_HANDLER(get_msg_queue)
|
|
{
|
|
struct msg_queue *queue = get_current_queue();
|
|
|
|
reply->handle = 0;
|
|
if (queue) reply->handle = alloc_handle( current->process, queue, SYNCHRONIZE, 0 );
|
|
}
|
|
|
|
|
|
/* set the current message queue wakeup mask */
|
|
DECL_HANDLER(set_queue_mask)
|
|
{
|
|
struct msg_queue *queue = get_current_queue();
|
|
|
|
if (queue)
|
|
{
|
|
queue->wake_mask = req->wake_mask;
|
|
queue->changed_mask = req->changed_mask;
|
|
reply->wake_bits = queue->wake_bits;
|
|
reply->changed_bits = queue->changed_bits;
|
|
if (is_signaled( queue ))
|
|
{
|
|
/* if skip wait is set, do what would have been done in the subsequent wait */
|
|
if (req->skip_wait) msg_queue_satisfied( &queue->obj, current );
|
|
else wake_up( &queue->obj, 0 );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* get the current message queue status */
|
|
DECL_HANDLER(get_queue_status)
|
|
{
|
|
struct msg_queue *queue = current->queue;
|
|
if (queue)
|
|
{
|
|
reply->wake_bits = queue->wake_bits;
|
|
reply->changed_bits = queue->changed_bits;
|
|
if (req->clear) queue->changed_bits = 0;
|
|
}
|
|
else reply->wake_bits = reply->changed_bits = 0;
|
|
}
|
|
|
|
|
|
/* send a message to a thread queue */
|
|
DECL_HANDLER(send_message)
|
|
{
|
|
struct message *msg;
|
|
struct msg_queue *send_queue = get_current_queue();
|
|
struct msg_queue *recv_queue = NULL;
|
|
struct thread *thread = NULL;
|
|
|
|
if (req->id)
|
|
{
|
|
if (!(thread = get_thread_from_id( req->id ))) return;
|
|
}
|
|
else if (req->type != MSG_HARDWARE)
|
|
{
|
|
/* only hardware messages are allowed without destination thread */
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
|
|
if (thread && !(recv_queue = thread->queue))
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
release_object( thread );
|
|
return;
|
|
}
|
|
|
|
if ((msg = mem_alloc( sizeof(*msg) )))
|
|
{
|
|
msg->type = req->type;
|
|
msg->win = get_user_full_handle( req->win );
|
|
msg->msg = req->msg;
|
|
msg->wparam = req->wparam;
|
|
msg->lparam = req->lparam;
|
|
msg->time = req->time;
|
|
msg->x = req->x;
|
|
msg->y = req->y;
|
|
msg->info = req->info;
|
|
msg->result = NULL;
|
|
msg->data = NULL;
|
|
msg->data_size = 0;
|
|
|
|
switch(msg->type)
|
|
{
|
|
case MSG_OTHER_PROCESS:
|
|
msg->data_size = get_req_data_size();
|
|
if (msg->data_size && !(msg->data = memdup( get_req_data(), msg->data_size )))
|
|
{
|
|
free( msg );
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case MSG_ASCII:
|
|
case MSG_UNICODE:
|
|
case MSG_CALLBACK:
|
|
if (!(msg->result = alloc_message_result( send_queue, recv_queue, req->timeout )))
|
|
{
|
|
free( msg );
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case MSG_NOTIFY:
|
|
append_message( &recv_queue->msg_list[SEND_MESSAGE], msg );
|
|
set_queue_bits( recv_queue, QS_SENDMESSAGE );
|
|
break;
|
|
case MSG_POSTED:
|
|
/* needed for posted DDE messages */
|
|
msg->data_size = get_req_data_size();
|
|
if (msg->data_size && !(msg->data = memdup( get_req_data(), msg->data_size )))
|
|
{
|
|
free( msg );
|
|
break;
|
|
}
|
|
append_message( &recv_queue->msg_list[POST_MESSAGE], msg );
|
|
set_queue_bits( recv_queue, QS_POSTMESSAGE );
|
|
break;
|
|
case MSG_HARDWARE:
|
|
queue_hardware_message( recv_queue, msg );
|
|
break;
|
|
default:
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
free( msg );
|
|
break;
|
|
}
|
|
}
|
|
if (thread) release_object( thread );
|
|
}
|
|
|
|
|
|
/* get a message from the current queue */
|
|
DECL_HANDLER(get_message)
|
|
{
|
|
struct timer *timer;
|
|
struct message *msg;
|
|
struct message *first_hw_msg = NULL;
|
|
struct msg_queue *queue = get_current_queue();
|
|
user_handle_t get_win = get_user_full_handle( req->get_win );
|
|
|
|
if (!queue) return;
|
|
|
|
/* first of all release the hardware input lock if we own it */
|
|
/* we'll grab it again if we find a hardware message */
|
|
if (queue->input->msg_thread == current)
|
|
{
|
|
first_hw_msg = queue->input->msg;
|
|
release_hardware_message( current, 0 );
|
|
}
|
|
|
|
/* first check for sent messages */
|
|
if ((msg = queue->msg_list[SEND_MESSAGE].first))
|
|
{
|
|
receive_message( queue, msg, reply );
|
|
return;
|
|
}
|
|
if (req->flags & GET_MSG_SENT_ONLY) goto done; /* nothing else to check */
|
|
|
|
/* clear changed bits so we can wait on them if we don't find a message */
|
|
queue->changed_bits = 0;
|
|
|
|
/* then check for posted messages */
|
|
if (get_posted_message( queue, get_win, req->get_first, req->get_last, req->flags, reply ))
|
|
return;
|
|
|
|
/* then check for any raw hardware message */
|
|
if (get_hardware_message( current, first_hw_msg, get_win, reply ))
|
|
return;
|
|
|
|
/* now check for WM_PAINT */
|
|
if (queue->paint_count &&
|
|
(WM_PAINT >= req->get_first) && (WM_PAINT <= req->get_last) &&
|
|
(reply->win = find_window_to_repaint( get_win, current )))
|
|
{
|
|
reply->type = MSG_POSTED;
|
|
reply->msg = WM_PAINT;
|
|
reply->wparam = 0;
|
|
reply->lparam = 0;
|
|
reply->x = 0;
|
|
reply->y = 0;
|
|
reply->time = get_tick_count();
|
|
reply->info = 0;
|
|
return;
|
|
}
|
|
|
|
/* now check for timer */
|
|
if ((timer = find_expired_timer( queue, get_win, req->get_first,
|
|
req->get_last, (req->flags & GET_MSG_REMOVE) )))
|
|
{
|
|
reply->type = MSG_POSTED;
|
|
reply->win = timer->win;
|
|
reply->msg = timer->msg;
|
|
reply->wparam = timer->id;
|
|
reply->lparam = timer->lparam;
|
|
reply->x = 0;
|
|
reply->y = 0;
|
|
reply->time = get_tick_count();
|
|
reply->info = 0;
|
|
return;
|
|
}
|
|
|
|
done:
|
|
set_error( STATUS_PENDING ); /* FIXME */
|
|
}
|
|
|
|
|
|
/* reply to a sent message */
|
|
DECL_HANDLER(reply_message)
|
|
{
|
|
if (!current->queue)
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
if (current->queue->recv_result)
|
|
reply_message( current->queue, req->result, 0, req->remove,
|
|
get_req_data(), get_req_data_size() );
|
|
else
|
|
{
|
|
struct thread_input *input = current->queue->input;
|
|
if (input->msg_thread == current) release_hardware_message( current, req->remove );
|
|
else set_error( STATUS_ACCESS_DENIED );
|
|
}
|
|
}
|
|
|
|
|
|
/* retrieve the reply for the last message sent */
|
|
DECL_HANDLER(get_message_reply)
|
|
{
|
|
struct msg_queue *queue = current->queue;
|
|
|
|
if (queue)
|
|
{
|
|
struct message_result *result = queue->send_result;
|
|
|
|
set_error( STATUS_PENDING );
|
|
reply->result = 0;
|
|
|
|
if (result && (result->replied || req->cancel))
|
|
{
|
|
if (result->replied)
|
|
{
|
|
reply->result = result->result;
|
|
set_error( result->error );
|
|
if (result->data)
|
|
{
|
|
size_t data_len = min( result->data_size, get_reply_max_size() );
|
|
set_reply_data_ptr( result->data, data_len );
|
|
result->data = NULL;
|
|
result->data_size = 0;
|
|
}
|
|
}
|
|
queue->send_result = result->send_next;
|
|
result->sender = NULL;
|
|
if (!result->receiver) free_result( result );
|
|
if (!queue->send_result || !queue->send_result->replied)
|
|
clear_queue_bits( queue, QS_SMRESULT );
|
|
}
|
|
}
|
|
else set_error( STATUS_ACCESS_DENIED );
|
|
}
|
|
|
|
|
|
/* set a window timer */
|
|
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 );
|
|
|
|
if (!queue) return;
|
|
|
|
/* remove it if it existed already */
|
|
if (win) kill_timer( queue, win, req->msg, req->id );
|
|
|
|
if ((timer = set_timer( queue, req->rate )))
|
|
{
|
|
timer->win = win;
|
|
timer->msg = req->msg;
|
|
timer->id = req->id;
|
|
timer->lparam = req->lparam;
|
|
}
|
|
}
|
|
|
|
/* kill a window timer */
|
|
DECL_HANDLER(kill_win_timer)
|
|
{
|
|
struct msg_queue *queue = current->queue;
|
|
|
|
if (!queue || !kill_timer( queue, get_user_full_handle(req->win), req->msg, req->id ))
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
}
|
|
|
|
|
|
/* attach (or detach) thread inputs */
|
|
DECL_HANDLER(attach_thread_input)
|
|
{
|
|
struct thread *thread_from = get_thread_from_id( req->tid_from );
|
|
struct thread *thread_to = get_thread_from_id( req->tid_to );
|
|
|
|
if (!thread_from || !thread_to)
|
|
{
|
|
if (thread_from) release_object( thread_from );
|
|
if (thread_to) release_object( thread_to );
|
|
return;
|
|
}
|
|
if (thread_from != thread_to)
|
|
{
|
|
if (req->attach) attach_thread_input( thread_from, thread_to );
|
|
else detach_thread_input( thread_from, thread_to );
|
|
}
|
|
else set_error( STATUS_ACCESS_DENIED );
|
|
release_object( thread_from );
|
|
release_object( thread_to );
|
|
}
|
|
|
|
|
|
/* get thread input data */
|
|
DECL_HANDLER(get_thread_input)
|
|
{
|
|
struct thread *thread = NULL;
|
|
struct thread_input *input;
|
|
|
|
if (req->tid)
|
|
{
|
|
if (!(thread = get_thread_from_id( req->tid ))) return;
|
|
input = thread->queue ? thread->queue->input : NULL;
|
|
}
|
|
else input = foreground_input; /* get the foreground thread info */
|
|
|
|
if (input)
|
|
{
|
|
reply->focus = input->focus;
|
|
reply->capture = input->capture;
|
|
reply->active = input->active;
|
|
reply->menu_owner = input->menu_owner;
|
|
reply->move_size = input->move_size;
|
|
reply->caret = input->caret;
|
|
reply->rect = input->caret_rect;
|
|
}
|
|
else
|
|
{
|
|
reply->focus = 0;
|
|
reply->capture = 0;
|
|
reply->active = 0;
|
|
reply->menu_owner = 0;
|
|
reply->move_size = 0;
|
|
reply->caret = 0;
|
|
reply->rect.left = reply->rect.top = reply->rect.right = reply->rect.bottom = 0;
|
|
}
|
|
/* foreground window is active window of foreground thread */
|
|
reply->foreground = foreground_input ? foreground_input->active : 0;
|
|
if (thread) release_object( thread );
|
|
}
|
|
|
|
|
|
/* retrieve queue keyboard state for a given thread */
|
|
DECL_HANDLER(get_key_state)
|
|
{
|
|
struct thread *thread;
|
|
struct thread_input *input;
|
|
|
|
if (!(thread = get_thread_from_id( req->tid ))) return;
|
|
input = thread->queue ? thread->queue->input : NULL;
|
|
if (input)
|
|
{
|
|
if (req->key >= 0) reply->state = input->keystate[req->key & 0xff];
|
|
set_reply_data( input->keystate, min( get_reply_max_size(), sizeof(input->keystate) ));
|
|
}
|
|
release_object( thread );
|
|
}
|
|
|
|
|
|
/* set queue keyboard state for a given thread */
|
|
DECL_HANDLER(set_key_state)
|
|
{
|
|
struct thread *thread = NULL;
|
|
struct thread_input *input;
|
|
|
|
if (!(thread = get_thread_from_id( req->tid ))) return;
|
|
input = thread->queue ? thread->queue->input : NULL;
|
|
if (input)
|
|
{
|
|
size_t size = min( sizeof(input->keystate), get_req_data_size() );
|
|
if (size) memcpy( input->keystate, get_req_data(), size );
|
|
}
|
|
release_object( thread );
|
|
}
|
|
|
|
|
|
/* set the system foreground window */
|
|
DECL_HANDLER(set_foreground_window)
|
|
{
|
|
struct msg_queue *queue = get_current_queue();
|
|
|
|
reply->previous = foreground_input ? foreground_input->active : 0;
|
|
reply->send_msg_old = (reply->previous && foreground_input != queue->input);
|
|
reply->send_msg_new = FALSE;
|
|
|
|
if (req->handle)
|
|
{
|
|
struct thread *thread;
|
|
|
|
if (is_top_level_window( req->handle ) &&
|
|
((thread = get_window_thread( req->handle ))))
|
|
{
|
|
foreground_input = thread->queue->input;
|
|
reply->send_msg_new = (foreground_input != queue->input);
|
|
release_object( thread );
|
|
}
|
|
else set_error( STATUS_INVALID_HANDLE );
|
|
}
|
|
else foreground_input = NULL;
|
|
}
|
|
|
|
|
|
/* set the current thread focus window */
|
|
DECL_HANDLER(set_focus_window)
|
|
{
|
|
struct msg_queue *queue = get_current_queue();
|
|
|
|
reply->previous = 0;
|
|
if (queue && check_queue_input_window( queue, req->handle ))
|
|
{
|
|
reply->previous = queue->input->focus;
|
|
queue->input->focus = get_user_full_handle( req->handle );
|
|
}
|
|
}
|
|
|
|
|
|
/* set the current thread active window */
|
|
DECL_HANDLER(set_active_window)
|
|
{
|
|
struct msg_queue *queue = get_current_queue();
|
|
|
|
reply->previous = 0;
|
|
if (queue && check_queue_input_window( queue, req->handle ))
|
|
{
|
|
if (!req->handle || make_window_active( req->handle ))
|
|
{
|
|
reply->previous = queue->input->active;
|
|
queue->input->active = get_user_full_handle( req->handle );
|
|
}
|
|
else set_error( STATUS_INVALID_HANDLE );
|
|
}
|
|
}
|
|
|
|
|
|
/* set the current thread capture window */
|
|
DECL_HANDLER(set_capture_window)
|
|
{
|
|
struct msg_queue *queue = get_current_queue();
|
|
|
|
reply->previous = reply->full_handle = 0;
|
|
if (queue && check_queue_input_window( queue, req->handle ))
|
|
{
|
|
struct thread_input *input = queue->input;
|
|
|
|
reply->previous = input->capture;
|
|
input->capture = get_user_full_handle( req->handle );
|
|
input->menu_owner = (req->flags & CAPTURE_MENU) ? input->capture : 0;
|
|
input->move_size = (req->flags & CAPTURE_MOVESIZE) ? input->capture : 0;
|
|
reply->full_handle = input->capture;
|
|
}
|
|
}
|
|
|
|
|
|
/* Set the current thread caret window */
|
|
DECL_HANDLER(set_caret_window)
|
|
{
|
|
struct msg_queue *queue = get_current_queue();
|
|
|
|
reply->previous = 0;
|
|
if (queue && check_queue_input_window( queue, req->handle ))
|
|
{
|
|
struct thread_input *input = queue->input;
|
|
|
|
reply->previous = input->caret;
|
|
reply->old_rect = input->caret_rect;
|
|
reply->old_hide = input->caret_hide;
|
|
reply->old_state = input->caret_state;
|
|
|
|
set_caret_window( input, get_user_full_handle(req->handle) );
|
|
input->caret_rect.right = req->width;
|
|
input->caret_rect.bottom = req->height;
|
|
}
|
|
}
|
|
|
|
|
|
/* Set the current thread caret information */
|
|
DECL_HANDLER(set_caret_info)
|
|
{
|
|
struct msg_queue *queue = get_current_queue();
|
|
struct thread_input *input;
|
|
|
|
if (!queue) return;
|
|
input = queue->input;
|
|
reply->full_handle = input->caret;
|
|
reply->old_rect = input->caret_rect;
|
|
reply->old_hide = input->caret_hide;
|
|
reply->old_state = input->caret_state;
|
|
|
|
if (req->handle && get_user_full_handle(req->handle) != input->caret)
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
if (req->flags & SET_CARET_POS)
|
|
{
|
|
input->caret_rect.right += req->x - input->caret_rect.left;
|
|
input->caret_rect.bottom += req->y - input->caret_rect.top;
|
|
input->caret_rect.left = req->x;
|
|
input->caret_rect.top = req->y;
|
|
}
|
|
if (req->flags & SET_CARET_HIDE)
|
|
{
|
|
input->caret_hide += req->hide;
|
|
if (input->caret_hide < 0) input->caret_hide = 0;
|
|
}
|
|
if (req->flags & SET_CARET_STATE)
|
|
{
|
|
if (req->state == -1) input->caret_state = !input->caret_state;
|
|
else input->caret_state = !!req->state;
|
|
}
|
|
}
|