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Sweden-Number/server/console.c

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/*
* Server-side console management
*
* Copyright (C) 1998 Alexandre Julliard
* 2001 Eric Pouech
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "handle.h"
#include "process.h"
#include "request.h"
#include "file.h"
#include "unicode.h"
#include "wincon.h"
#include "winternl.h"
#include "wine/condrv.h"
struct screen_buffer;
struct console_input_events;
struct history_line
{
data_size_t len;
WCHAR text[1];
};
struct console_input
{
struct object obj; /* object header */
int num_proc; /* number of processes attached to this console */
struct thread *renderer; /* console renderer thread */
int mode; /* input mode */
struct screen_buffer *active; /* active screen buffer */
int recnum; /* number of input records */
INPUT_RECORD *records; /* input records */
struct console_input_events *evt; /* synchronization event with renderer */
struct console_server *server; /* console server object */
WCHAR *title; /* console title */
data_size_t title_len; /* length of console title */
struct history_line **history; /* lines history */
int history_size; /* number of entries in history array */
int history_index; /* number of used entries in history array */
int history_mode; /* mode of history (non zero means remove doubled strings */
int edition_mode; /* index to edition mode flavors */
int input_cp; /* console input codepage */
int output_cp; /* console output codepage */
user_handle_t win; /* window handle if backend supports it */
unsigned int last_id; /* id of last created console buffer */
struct event *event; /* event to wait on for input queue */
struct fd *fd; /* for bare console, attached input fd */
struct async_queue ioctl_q; /* ioctl queue */
struct async_queue read_q; /* read queue */
};
static void console_input_dump( struct object *obj, int verbose );
static void console_input_destroy( struct object *obj );
static struct fd *console_input_get_fd( struct object *obj );
static struct object *console_input_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options );
static const struct object_ops console_input_ops =
{
sizeof(struct console_input), /* size */
console_input_dump, /* dump */
no_get_type, /* get_type */
no_add_queue, /* add_queue */
NULL, /* remove_queue */
NULL, /* signaled */
no_satisfied, /* satisfied */
no_signal, /* signal */
console_input_get_fd, /* get_fd */
default_fd_map_access, /* map_access */
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
console_input_open_file, /* open_file */
no_kernel_obj_list, /* get_kernel_obj_list */
no_close_handle, /* close_handle */
console_input_destroy /* destroy */
};
static enum server_fd_type console_get_fd_type( struct fd *fd );
static int console_input_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
static const struct fd_ops console_input_fd_ops =
{
default_fd_get_poll_events, /* get_poll_events */
default_poll_event, /* poll_event */
console_get_fd_type, /* get_fd_type */
no_fd_read, /* read */
no_fd_write, /* write */
no_fd_flush, /* flush */
no_fd_get_file_info, /* get_file_info */
no_fd_get_volume_info, /* get_volume_info */
console_input_ioctl, /* ioctl */
default_fd_queue_async, /* queue_async */
default_fd_reselect_async /* reselect_async */
};
static void console_input_events_dump( struct object *obj, int verbose );
static void console_input_events_destroy( struct object *obj );
static struct fd *console_input_events_get_fd( struct object *obj );
static struct object *console_input_events_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options );
struct console_input_events
{
struct object obj; /* object header */
struct fd *fd; /* pseudo-fd for ioctls */
struct console_input *console; /* attached console */
int num_alloc; /* number of allocated events */
int num_used; /* number of actually used events */
struct condrv_renderer_event *events;
struct async_queue read_q; /* read queue */
};
static const struct object_ops console_input_events_ops =
{
sizeof(struct console_input_events), /* size */
console_input_events_dump, /* dump */
no_get_type, /* get_type */
add_queue, /* add_queue */
remove_queue, /* remove_queue */
NULL, /* signaled */
no_satisfied, /* satisfied */
no_signal, /* signal */
console_input_events_get_fd, /* get_fd */
default_fd_map_access, /* map_access */
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
console_input_events_open_file, /* open_file */
no_kernel_obj_list, /* get_kernel_obj_list */
no_close_handle, /* close_handle */
console_input_events_destroy /* destroy */
};
static int console_input_events_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
static const struct fd_ops console_input_events_fd_ops =
{
default_fd_get_poll_events, /* get_poll_events */
default_poll_event, /* poll_event */
console_get_fd_type, /* get_fd_type */
no_fd_read, /* read */
no_fd_write, /* write */
no_fd_flush, /* flush */
no_fd_get_file_info, /* get_file_info */
no_fd_get_volume_info, /* get_volume_info */
console_input_events_ioctl, /* ioctl */
default_fd_queue_async, /* queue_async */
default_fd_reselect_async /* reselect_async */
};
struct console_host_ioctl
{
unsigned int code; /* ioctl code */
int output; /* output id for screen buffer ioctls */
struct async *async; /* ioctl async */
struct list entry; /* list entry */
};
struct console_server
{
struct object obj; /* object header */
struct fd *fd; /* pseudo-fd for ioctls */
struct console_input *console; /* attached console */
struct list queue; /* ioctl queue */
struct list read_queue; /* blocking read queue */
int busy; /* flag if server processing an ioctl */
};
static void console_server_dump( struct object *obj, int verbose );
static void console_server_destroy( struct object *obj );
static int console_server_signaled( struct object *obj, struct wait_queue_entry *entry );
static struct fd *console_server_get_fd( struct object *obj );
static struct object *console_server_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attr );
static struct object *console_server_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options );
static const struct object_ops console_server_ops =
{
sizeof(struct console_server), /* size */
console_server_dump, /* dump */
no_get_type, /* get_type */
add_queue, /* add_queue */
remove_queue, /* remove_queue */
console_server_signaled, /* signaled */
no_satisfied, /* satisfied */
no_signal, /* signal */
console_server_get_fd, /* get_fd */
default_fd_map_access, /* map_access */
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
console_server_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
console_server_open_file, /* open_file */
no_kernel_obj_list, /* get_kernel_obj_list */
fd_close_handle, /* close_handle */
console_server_destroy /* destroy */
};
static int console_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
static const struct fd_ops console_server_fd_ops =
{
default_fd_get_poll_events, /* get_poll_events */
default_poll_event, /* poll_event */
console_get_fd_type, /* get_fd_type */
no_fd_read, /* read */
no_fd_write, /* write */
no_fd_flush, /* flush */
no_fd_get_file_info, /* get_file_info */
no_fd_get_volume_info, /* get_volume_info */
console_server_ioctl, /* ioctl */
default_fd_queue_async, /* queue_async */
default_fd_reselect_async /* reselect_async */
};
struct font_info
{
short int width;
short int height;
short int weight;
short int pitch_family;
WCHAR *face_name;
data_size_t face_len;
};
struct screen_buffer
{
struct object obj; /* object header */
struct list entry; /* entry in list of all screen buffers */
struct console_input *input; /* associated console input */
unsigned int id; /* buffer id */
unsigned int mode; /* output mode */
int cursor_size; /* size of cursor (percentage filled) */
int cursor_visible;/* cursor visibility flag */
int cursor_x; /* position of cursor */
int cursor_y; /* position of cursor */
int width; /* size (w-h) of the screen buffer */
int height;
int max_width; /* size (w-h) of the window given font size */
int max_height;
char_info_t *data; /* the data for each cell - a width x height matrix */
unsigned short attr; /* default fill attributes (screen colors) */
unsigned short popup_attr; /* pop-up color attributes */
unsigned int color_map[16]; /* color table */
rectangle_t win; /* current visible window on the screen buffer *
* as seen in wineconsole */
struct font_info font; /* console font information */
struct fd *fd; /* for bare console, attached output fd */
struct async_queue ioctl_q; /* ioctl queue */
};
static void screen_buffer_dump( struct object *obj, int verbose );
static void screen_buffer_destroy( struct object *obj );
static struct fd *screen_buffer_get_fd( struct object *obj );
static struct object *screen_buffer_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options );
static const struct object_ops screen_buffer_ops =
{
sizeof(struct screen_buffer), /* size */
screen_buffer_dump, /* dump */
no_get_type, /* get_type */
no_add_queue, /* add_queue */
NULL, /* remove_queue */
NULL, /* signaled */
NULL, /* satisfied */
no_signal, /* signal */
screen_buffer_get_fd, /* get_fd */
default_fd_map_access, /* map_access */
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
screen_buffer_open_file, /* open_file */
no_kernel_obj_list, /* get_kernel_obj_list */
no_close_handle, /* close_handle */
screen_buffer_destroy /* destroy */
};
static int screen_buffer_ioctl( struct fd *fd, ioctl_code_t code, struct async *async );
static const struct fd_ops screen_buffer_fd_ops =
{
default_fd_get_poll_events, /* get_poll_events */
default_poll_event, /* poll_event */
console_get_fd_type, /* get_fd_type */
no_fd_read, /* read */
no_fd_write, /* write */
no_fd_flush, /* flush */
no_fd_get_file_info, /* get_file_info */
no_fd_get_volume_info, /* get_volume_info */
screen_buffer_ioctl, /* ioctl */
default_fd_queue_async, /* queue_async */
default_fd_reselect_async /* reselect_async */
};
static struct object_type *console_device_get_type( struct object *obj );
static void console_device_dump( struct object *obj, int verbose );
static struct object *console_device_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attr );
static struct object *console_device_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options );
static const struct object_ops console_device_ops =
{
sizeof(struct object), /* size */
console_device_dump, /* dump */
console_device_get_type, /* get_type */
no_add_queue, /* add_queue */
NULL, /* remove_queue */
NULL, /* signaled */
no_satisfied, /* satisfied */
no_signal, /* signal */
no_get_fd, /* get_fd */
default_fd_map_access, /* map_access */
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
console_device_lookup_name, /* lookup_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
console_device_open_file, /* open_file */
no_kernel_obj_list, /* get_kernel_obj_list */
no_close_handle, /* close_handle */
no_destroy /* destroy */
};
static struct list screen_buffer_list = LIST_INIT(screen_buffer_list);
static const char_info_t empty_char_info = { ' ', 0x000f }; /* white on black space */
static int console_input_is_bare( struct console_input* cin )
{
return cin->evt == NULL;
}
static struct fd *console_input_get_fd( struct object* obj )
{
struct console_input *console_input = (struct console_input*)obj;
assert( obj->ops == &console_input_ops );
return (struct fd *)grab_object( console_input->fd );
}
static enum server_fd_type console_get_fd_type( struct fd *fd )
{
return FD_TYPE_CHAR;
}
/* dumps the renderer events of a console */
static void console_input_events_dump( struct object *obj, int verbose )
{
struct console_input_events *evts = (struct console_input_events *)obj;
assert( obj->ops == &console_input_events_ops );
fprintf( stderr, "Console input events: %d/%d events\n",
evts->num_used, evts->num_alloc );
}
/* destroys the renderer events of a console */
static void console_input_events_destroy( struct object *obj )
{
struct console_input_events *evts = (struct console_input_events *)obj;
assert( obj->ops == &console_input_events_ops );
if (evts->console) evts->console->evt = NULL;
free_async_queue( &evts->read_q );
if (evts->fd) release_object( evts->fd );
free( evts->events );
}
static struct fd *console_input_events_get_fd( struct object* obj )
{
struct console_input_events *evts = (struct console_input_events*)obj;
assert( obj->ops == &console_input_events_ops );
return (struct fd*)grab_object( evts->fd );
}
static struct object *console_input_events_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options )
{
return grab_object( obj );
}
/* retrieves events from the console's renderer events list */
static int get_renderer_events( struct console_input_events* evts, struct async *async )
{
struct iosb *iosb = async_get_iosb( async );
data_size_t num;
num = min( iosb->out_size / sizeof(evts->events[0]), evts->num_used );
if (num && !(iosb->out_data = malloc( num * sizeof(evts->events[0] ))))
{
async_terminate( async, STATUS_NO_MEMORY );
release_object( iosb );
return 0;
}
iosb->status = STATUS_SUCCESS;
iosb->out_size = iosb->result = num * sizeof(evts->events[0]);
if (num) memcpy( iosb->out_data, evts->events, iosb->result );
release_object( iosb );
async_terminate( async, STATUS_ALERTED );
if (num && num < evts->num_used)
{
memmove( &evts->events[0], &evts->events[num],
(evts->num_used - num) * sizeof(evts->events[0]) );
}
evts->num_used -= num;
return 1;
}
/* add an event to the console's renderer events list */
static void console_input_events_append( struct console_input* console,
struct condrv_renderer_event* evt)
{
struct console_input_events* evts;
int collapsed = FALSE;
struct async *async;
if (!(evts = console->evt)) return;
/* to be done even when evt has been generated by the renderer ? */
/* try to collapse evt into current queue's events */
if (evts->num_used)
{
struct condrv_renderer_event* last = &evts->events[evts->num_used - 1];
if (last->event == CONSOLE_RENDERER_UPDATE_EVENT &&
evt->event == CONSOLE_RENDERER_UPDATE_EVENT)
{
/* if two update events overlap, collapse them into a single one */
if (last->u.update.bottom + 1 >= evt->u.update.top &&
evt->u.update.bottom + 1 >= last->u.update.top)
{
last->u.update.top = min(last->u.update.top, evt->u.update.top);
last->u.update.bottom = max(last->u.update.bottom, evt->u.update.bottom);
collapsed = TRUE;
}
}
}
if (!collapsed)
{
if (evts->num_used == evts->num_alloc)
{
evts->num_alloc += 16;
evts->events = realloc( evts->events, evts->num_alloc * sizeof(*evt) );
assert(evts->events);
}
evts->events[evts->num_used++] = *evt;
}
while (evts->num_used && (async = find_pending_async( &evts->read_q )))
{
get_renderer_events( evts, async );
release_object( async );
}
}
static struct object *create_console_input_events(void)
{
struct console_input_events* evt;
if (!(evt = alloc_object( &console_input_events_ops ))) return NULL;
evt->console = NULL;
evt->num_alloc = evt->num_used = 0;
evt->events = NULL;
init_async_queue( &evt->read_q );
if (!(evt->fd = alloc_pseudo_fd( &console_input_events_fd_ops, &evt->obj, 0 )))
{
release_object( evt );
return NULL;
}
return &evt->obj;
}
static struct object *create_console_input( int fd )
{
struct console_input *console_input;
if (!(console_input = alloc_object( &console_input_ops )))
{
if (fd != -1) close( fd );
return NULL;
}
console_input->renderer = NULL;
console_input->mode = ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT |
ENABLE_ECHO_INPUT | ENABLE_MOUSE_INPUT | ENABLE_INSERT_MODE |
ENABLE_EXTENDED_FLAGS;
console_input->num_proc = 0;
console_input->active = NULL;
console_input->recnum = 0;
console_input->records = NULL;
console_input->evt = NULL;
console_input->server = NULL;
console_input->title = NULL;
console_input->title_len = 0;
console_input->history_size = 50;
console_input->history = calloc( console_input->history_size, sizeof(*console_input->history) );
console_input->history_index = 0;
console_input->history_mode = 0;
console_input->edition_mode = 0;
console_input->input_cp = 0;
console_input->output_cp = 0;
console_input->win = 0;
console_input->event = create_event( NULL, NULL, 0, 1, 0, NULL );
console_input->fd = NULL;
console_input->last_id = 0;
init_async_queue( &console_input->ioctl_q );
init_async_queue( &console_input->read_q );
if (!console_input->history || !console_input->event)
{
if (fd != -1) close( fd );
console_input->history_size = 0;
release_object( console_input );
return NULL;
}
if (fd != -1) /* bare console */
{
console_input->fd = create_anonymous_fd( &console_input_fd_ops, fd, &console_input->obj,
FILE_SYNCHRONOUS_IO_NONALERT );
}
else
{
console_input->fd = alloc_pseudo_fd( &console_input_fd_ops, &console_input->obj,
FILE_SYNCHRONOUS_IO_NONALERT );
}
if (!console_input->fd)
{
release_object( console_input );
return NULL;
}
allow_fd_caching( console_input->fd );
return &console_input->obj;
}
static void console_host_ioctl_terminate( struct console_host_ioctl *call, unsigned int status )
{
if (call->async)
{
async_terminate( call->async, status );
release_object( call->async );
}
free( call );
}
static int queue_host_ioctl( struct console_server *server, unsigned int code, unsigned int output,
struct async *async, struct async_queue *queue )
{
struct console_host_ioctl *ioctl;
if (!(ioctl = mem_alloc( sizeof(*ioctl) ))) return 0;
ioctl->code = code;
ioctl->output = output;
ioctl->async = NULL;
if (async)
{
ioctl->async = (struct async *)grab_object( async );
queue_async( queue, async );
}
list_add_tail( &server->queue, &ioctl->entry );
wake_up( &server->obj, 0 );
if (async) set_error( STATUS_PENDING );
return 0;
}
static void disconnect_console_server( struct console_server *server )
{
while (!list_empty( &server->queue ))
{
struct console_host_ioctl *call = LIST_ENTRY( list_head( &server->queue ), struct console_host_ioctl, entry );
list_remove( &call->entry );
console_host_ioctl_terminate( call, STATUS_CANCELLED );
}
while (!list_empty( &server->read_queue ))
{
struct console_host_ioctl *call = LIST_ENTRY( list_head( &server->read_queue ), struct console_host_ioctl, entry );
list_remove( &call->entry );
console_host_ioctl_terminate( call, STATUS_CANCELLED );
}
if (server->console)
{
assert( server->console->server == server );
server->console->server = NULL;
server->console = NULL;
wake_up( &server->obj, 0 );
}
}
static void set_active_screen_buffer( struct console_input *console_input, struct screen_buffer *screen_buffer )
{
struct condrv_renderer_event evt;
if (console_input->active == screen_buffer) return;
if (console_input->active) release_object( console_input->active );
console_input->active = (struct screen_buffer *)grab_object( screen_buffer );
if (console_input->server) queue_host_ioctl( console_input->server, IOCTL_CONDRV_ACTIVATE,
screen_buffer->id, NULL, NULL );
evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT;
evt.u.resize.width = screen_buffer->width;
evt.u.resize.height = screen_buffer->height;
console_input_events_append( console_input, &evt );
evt.event = CONSOLE_RENDERER_DISPLAY_EVENT;
evt.u.display.left = screen_buffer->win.left;
evt.u.display.top = screen_buffer->win.top;
evt.u.display.width = screen_buffer->win.right - screen_buffer->win.left + 1;
evt.u.display.height = screen_buffer->win.bottom - screen_buffer->win.top + 1;
console_input_events_append( console_input, &evt );
evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
evt.u.update.top = 0;
evt.u.update.bottom = screen_buffer->height - 1;
console_input_events_append( console_input, &evt );
evt.event = CONSOLE_RENDERER_CURSOR_GEOM_EVENT;
evt.u.cursor_geom.size = screen_buffer->cursor_size;
evt.u.cursor_geom.visible = screen_buffer->cursor_visible;
console_input_events_append( console_input, &evt );
evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
evt.u.cursor_pos.x = screen_buffer->cursor_x;
evt.u.cursor_pos.y = screen_buffer->cursor_y;
console_input_events_append( console_input, &evt );
}
static struct object *create_console_output( struct console_input *console_input, int fd )
{
struct screen_buffer *screen_buffer;
int i;
if (console_input->last_id == ~0)
{
set_error( STATUS_NO_MEMORY );
return NULL;
}
if (!(screen_buffer = alloc_object( &screen_buffer_ops )))
{
if (fd != -1) close( fd );
return NULL;
}
screen_buffer->id = ++console_input->last_id;
screen_buffer->mode = ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT;
screen_buffer->input = console_input;
screen_buffer->cursor_size = 100;
screen_buffer->cursor_visible = 1;
screen_buffer->width = 80;
screen_buffer->height = 150;
screen_buffer->max_width = 80;
screen_buffer->max_height = 25;
screen_buffer->cursor_x = 0;
screen_buffer->cursor_y = 0;
screen_buffer->attr = 0x0F;
screen_buffer->popup_attr = 0xF5;
screen_buffer->win.left = 0;
screen_buffer->win.right = screen_buffer->max_width - 1;
screen_buffer->win.top = 0;
screen_buffer->win.bottom = screen_buffer->max_height - 1;
screen_buffer->data = NULL;
screen_buffer->font.width = 0;
screen_buffer->font.height = 0;
screen_buffer->font.weight = FW_NORMAL;
screen_buffer->font.pitch_family = FIXED_PITCH | FF_DONTCARE;
screen_buffer->font.face_name = NULL;
screen_buffer->font.face_len = 0;
memset( screen_buffer->color_map, 0, sizeof(screen_buffer->color_map) );
init_async_queue( &screen_buffer->ioctl_q );
list_add_head( &screen_buffer_list, &screen_buffer->entry );
if (fd != -1)
screen_buffer->fd = create_anonymous_fd( &screen_buffer_fd_ops, fd, &screen_buffer->obj,
FILE_SYNCHRONOUS_IO_NONALERT );
else
screen_buffer->fd = alloc_pseudo_fd( &screen_buffer_fd_ops, &screen_buffer->obj,
FILE_SYNCHRONOUS_IO_NONALERT );
if (!screen_buffer->fd)
{
release_object( screen_buffer );
return NULL;
}
allow_fd_caching(screen_buffer->fd);
if (!(screen_buffer->data = malloc( screen_buffer->width * screen_buffer->height *
sizeof(*screen_buffer->data) )))
{
release_object( screen_buffer );
return NULL;
}
/* clear the first row */
for (i = 0; i < screen_buffer->width; i++) screen_buffer->data[i] = empty_char_info;
/* and copy it to all other rows */
for (i = 1; i < screen_buffer->height; i++)
memcpy( &screen_buffer->data[i * screen_buffer->width], screen_buffer->data,
screen_buffer->width * sizeof(char_info_t) );
if (console_input->server) queue_host_ioctl( console_input->server, IOCTL_CONDRV_INIT_OUTPUT,
screen_buffer->id, NULL, NULL );
if (!console_input->active) set_active_screen_buffer( console_input, screen_buffer );
return &screen_buffer->obj;
}
/* free the console for this process */
int free_console( struct process *process )
{
struct console_input* console = process->console;
if (!console) return 0;
process->console = NULL;
if (--console->num_proc == 0 && console->renderer)
{
/* all processes have terminated... tell the renderer to terminate too */
struct condrv_renderer_event evt;
evt.event = CONSOLE_RENDERER_EXIT_EVENT;
memset(&evt.u, 0, sizeof(evt.u));
console_input_events_append( console, &evt );
}
release_object( console );
return 1;
}
/* let process inherit the console from parent... this handle two cases :
* 1/ generic console inheritance
* 2/ parent is a renderer which launches process, and process should attach to the console
* rendered by parent
*/
obj_handle_t inherit_console( struct thread *parent_thread, obj_handle_t handle, struct process *process,
obj_handle_t hconin )
{
struct console_input *console = NULL;
if (handle && !(console = (struct console_input *)get_handle_obj( current->process, handle, 0,
&console_input_ops )))
return 0;
/* if parent is a renderer, then attach current process to its console
* a bit hacky....
*/
if (!console && hconin && parent_thread)
{
/* FIXME: should we check some access rights ? */
if (!(console = (struct console_input *)get_handle_obj( parent_thread->process, hconin,
0, &console_input_ops )))
clear_error(); /* ignore error */
}
if (!console) return 0;
process->console = console;
console->num_proc++;
return alloc_handle( process, process->console,
SYNCHRONIZE | GENERIC_READ | GENERIC_WRITE, 0 );
}
struct thread *console_get_renderer( struct console_input *console )
{
return console->renderer;
}
static struct console_input* console_input_get( obj_handle_t handle, unsigned access )
{
struct console_input* console = NULL;
if (handle)
console = (struct console_input *)get_handle_obj( current->process, handle,
access, &console_input_ops );
else if (current->process->console)
{
console = (struct console_input *)grab_object( current->process->console );
}
if (!console && !get_error()) set_error(STATUS_INVALID_PARAMETER);
return console;
}
struct console_signal_info
{
struct console_input *console;
process_id_t group;
int signal;
};
static int propagate_console_signal_cb(struct process *process, void *user)
{
struct console_signal_info* csi = (struct console_signal_info*)user;
if (process->console == csi->console && process->running_threads &&
(!csi->group || process->group_id == csi->group))
{
/* find a suitable thread to signal */
struct thread *thread;
LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry )
{
if (send_thread_signal( thread, csi->signal )) break;
}
}
return FALSE;
}
static void propagate_console_signal( struct console_input *console,
int sig, process_id_t group_id )
{
struct console_signal_info csi;
if (!console)
{
set_error( STATUS_INVALID_PARAMETER );
return;
}
/* FIXME: should support the other events (like CTRL_BREAK) */
if (sig != CTRL_C_EVENT)
{
set_error( STATUS_NOT_IMPLEMENTED );
return;
}
csi.console = console;
csi.signal = SIGINT;
csi.group = group_id;
enum_processes(propagate_console_signal_cb, &csi);
}
/* retrieve a pointer to the console input records */
static int read_console_input( struct console_input *console, struct async *async, int flush )
{
struct iosb *iosb = async_get_iosb( async );
data_size_t count;
count = min( iosb->out_size / sizeof(INPUT_RECORD), console->recnum );
if (count)
{
if (!(iosb->out_data = malloc( count * sizeof(INPUT_RECORD) )))
{
set_error( STATUS_NO_MEMORY );
release_object( iosb );
return 0;
}
iosb->out_size = iosb->result = count * sizeof(INPUT_RECORD);
memcpy( iosb->out_data, console->records, iosb->result );
iosb->status = STATUS_SUCCESS;
async_terminate( async, STATUS_ALERTED );
}
else
{
async_terminate( async, STATUS_SUCCESS );
}
release_object( iosb );
if (flush && count)
{
if (console->recnum > count)
{
INPUT_RECORD *new_rec;
memmove( console->records, console->records + count, (console->recnum - count) * sizeof(*console->records) );
console->recnum -= count;
new_rec = realloc( console->records, console->recnum * sizeof(*console->records) );
if (new_rec) console->records = new_rec;
}
else
{
console->recnum = 0;
free( console->records );
console->records = NULL;
reset_event( console->event );
}
}
return 1;
}
/* add input events to a console input queue */
static int write_console_input( struct console_input* console, int count,
const INPUT_RECORD *records )
{
INPUT_RECORD *new_rec;
struct async *async;
if (!count) return 1;
if (!(new_rec = realloc( console->records,
(console->recnum + count) * sizeof(INPUT_RECORD) )))
{
set_error( STATUS_NO_MEMORY );
return 0;
}
console->records = new_rec;
memcpy( new_rec + console->recnum, records, count * sizeof(INPUT_RECORD) );
if (console->mode & ENABLE_PROCESSED_INPUT)
{
int i = 0;
while (i < count)
{
if (records[i].EventType == KEY_EVENT &&
records[i].Event.KeyEvent.uChar.UnicodeChar == 'C' - 64 &&
!(records[i].Event.KeyEvent.dwControlKeyState & ENHANCED_KEY))
{
if (i != count - 1)
memcpy( &console->records[console->recnum + i],
&console->records[console->recnum + i + 1],
(count - i - 1) * sizeof(INPUT_RECORD) );
count--;
if (records[i].Event.KeyEvent.bKeyDown)
{
/* send SIGINT to all processes attached to this console */
propagate_console_signal( console, CTRL_C_EVENT, 0 );
}
}
else i++;
}
}
console->recnum += count;
while (console->recnum && (async = find_pending_async( &console->read_q )))
{
read_console_input( console, async, 1 );
release_object( async );
}
if (console->recnum) set_event( console->event );
return 1;
}
/* resize a screen buffer */
static int change_screen_buffer_size( struct screen_buffer *screen_buffer,
int new_width, int new_height )
{
int i, old_width, old_height, copy_width, copy_height;
char_info_t *new_data;
if (!(new_data = malloc( new_width * new_height * sizeof(*new_data) )))
{
set_error( STATUS_NO_MEMORY );
return 0;
}
old_width = screen_buffer->width;
old_height = screen_buffer->height;
copy_width = min( old_width, new_width );
copy_height = min( old_height, new_height );
/* copy all the rows */
for (i = 0; i < copy_height; i++)
{
memcpy( &new_data[i * new_width], &screen_buffer->data[i * old_width],
copy_width * sizeof(char_info_t) );
}
/* clear the end of each row */
if (new_width > old_width)
{
/* fill first row */
for (i = old_width; i < new_width; i++) new_data[i] = empty_char_info;
/* and blast it to the other rows */
for (i = 1; i < copy_height; i++)
memcpy( &new_data[i * new_width + old_width], &new_data[old_width],
(new_width - old_width) * sizeof(char_info_t) );
}
/* clear remaining rows */
if (new_height > old_height)
{
/* fill first row */
for (i = 0; i < new_width; i++) new_data[old_height * new_width + i] = empty_char_info;
/* and blast it to the other rows */
for (i = old_height+1; i < new_height; i++)
memcpy( &new_data[i * new_width], &new_data[old_height * new_width],
new_width * sizeof(char_info_t) );
}
free( screen_buffer->data );
screen_buffer->data = new_data;
screen_buffer->width = new_width;
screen_buffer->height = new_height;
return 1;
}
static int set_output_info( struct screen_buffer *screen_buffer,
const struct condrv_output_info_params *params, data_size_t extra_size )
{
const struct condrv_output_info *info = &params->info;
struct condrv_renderer_event evt;
WCHAR *font_name;
if (params->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_GEOM)
{
if (info->cursor_size < 1 || info->cursor_size > 100)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (screen_buffer->cursor_size != info->cursor_size ||
screen_buffer->cursor_visible != info->cursor_visible)
{
screen_buffer->cursor_size = info->cursor_size;
screen_buffer->cursor_visible = info->cursor_visible;
evt.event = CONSOLE_RENDERER_CURSOR_GEOM_EVENT;
memset( &evt.u, 0, sizeof(evt.u) );
evt.u.cursor_geom.size = info->cursor_size;
evt.u.cursor_geom.visible = info->cursor_visible;
console_input_events_append( screen_buffer->input, &evt );
}
}
if (params->mask & SET_CONSOLE_OUTPUT_INFO_CURSOR_POS)
{
if (info->cursor_x < 0 || info->cursor_x >= screen_buffer->width ||
info->cursor_y < 0 || info->cursor_y >= screen_buffer->height)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (screen_buffer->cursor_x != info->cursor_x || screen_buffer->cursor_y != info->cursor_y)
{
screen_buffer->cursor_x = info->cursor_x;
screen_buffer->cursor_y = info->cursor_y;
evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
memset( &evt.u, 0, sizeof(evt.u) );
evt.u.cursor_pos.x = info->cursor_x;
evt.u.cursor_pos.y = info->cursor_y;
console_input_events_append( screen_buffer->input, &evt );
}
}
if (params->mask & SET_CONSOLE_OUTPUT_INFO_SIZE)
{
unsigned cc;
/* new screen-buffer cannot be smaller than actual window */
if (info->width < screen_buffer->win.right - screen_buffer->win.left + 1 ||
info->height < screen_buffer->win.bottom - screen_buffer->win.top + 1)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
/* FIXME: there are also some basic minimum and max size to deal with */
if (!change_screen_buffer_size( screen_buffer, info->width, info->height )) return 0;
evt.event = CONSOLE_RENDERER_SB_RESIZE_EVENT;
memset( &evt.u, 0, sizeof(evt.u) );
evt.u.resize.width = info->width;
evt.u.resize.height = info->height;
console_input_events_append( screen_buffer->input, &evt );
evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
memset( &evt.u, 0, sizeof(evt.u) );
evt.u.update.top = 0;
evt.u.update.bottom = screen_buffer->height - 1;
console_input_events_append( screen_buffer->input, &evt );
/* scroll window to display sb */
if (screen_buffer->win.right >= info->width)
{
screen_buffer->win.right -= screen_buffer->win.left;
screen_buffer->win.left = 0;
}
if (screen_buffer->win.bottom >= info->height)
{
screen_buffer->win.bottom -= screen_buffer->win.top;
screen_buffer->win.top = 0;
}
/* reset cursor if needed (normally, if cursor was outside of new sb, the
* window has been shifted so that the new position of the cursor will be
* visible */
cc = 0;
if (screen_buffer->cursor_x >= info->width)
{
screen_buffer->cursor_x = info->width - 1;
cc++;
}
if (screen_buffer->cursor_y >= info->height)
{
screen_buffer->cursor_y = info->height - 1;
cc++;
}
if (cc)
{
evt.event = CONSOLE_RENDERER_CURSOR_POS_EVENT;
memset( &evt.u, 0, sizeof(evt.u) );
evt.u.cursor_pos.x = info->cursor_x;
evt.u.cursor_pos.y = info->cursor_y;
console_input_events_append( screen_buffer->input, &evt );
}
if (screen_buffer == screen_buffer->input->active &&
screen_buffer->input->mode & ENABLE_WINDOW_INPUT)
{
INPUT_RECORD ir;
ir.EventType = WINDOW_BUFFER_SIZE_EVENT;
ir.Event.WindowBufferSizeEvent.dwSize.X = info->width;
ir.Event.WindowBufferSizeEvent.dwSize.Y = info->height;
write_console_input( screen_buffer->input, 1, &ir );
}
}
if (params->mask & SET_CONSOLE_OUTPUT_INFO_ATTR)
{
screen_buffer->attr = info->attr;
}
if (params->mask & SET_CONSOLE_OUTPUT_INFO_POPUP_ATTR)
{
screen_buffer->popup_attr = info->popup_attr;
}
if (params->mask & SET_CONSOLE_OUTPUT_INFO_DISPLAY_WINDOW)
{
if (info->win_left < 0 || info->win_left > info->win_right ||
info->win_right >= screen_buffer->width ||
info->win_top < 0 || info->win_top > info->win_bottom ||
info->win_bottom >= screen_buffer->height)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (screen_buffer->win.left != info->win_left || screen_buffer->win.top != info->win_top ||
screen_buffer->win.right != info->win_right || screen_buffer->win.bottom != info->win_bottom)
{
screen_buffer->win.left = info->win_left;
screen_buffer->win.top = info->win_top;
screen_buffer->win.right = info->win_right;
screen_buffer->win.bottom = info->win_bottom;
evt.event = CONSOLE_RENDERER_DISPLAY_EVENT;
memset( &evt.u, 0, sizeof(evt.u) );
evt.u.display.left = info->win_left;
evt.u.display.top = info->win_top;
evt.u.display.width = info->win_right - info->win_left + 1;
evt.u.display.height = info->win_bottom - info->win_top + 1;
console_input_events_append( screen_buffer->input, &evt );
}
}
if (params->mask & SET_CONSOLE_OUTPUT_INFO_MAX_SIZE)
{
screen_buffer->max_width = info->max_width;
screen_buffer->max_height = info->max_height;
}
if (params->mask & SET_CONSOLE_OUTPUT_INFO_COLORTABLE)
{
memcpy( screen_buffer->color_map, info->color_map, sizeof(info->color_map) );
}
if (params->mask & SET_CONSOLE_OUTPUT_INFO_FONT)
{
screen_buffer->font.width = info->font_width;
screen_buffer->font.height = info->font_height;
screen_buffer->font.weight = info->font_weight;
screen_buffer->font.pitch_family = info->font_pitch_family;
if (extra_size)
{
extra_size = extra_size / sizeof(WCHAR) * sizeof(WCHAR);
font_name = mem_alloc( extra_size );
if (font_name)
{
memcpy( font_name, info + 1, extra_size );
free( screen_buffer->font.face_name );
screen_buffer->font.face_name = font_name;
screen_buffer->font.face_len = extra_size;
}
}
}
return 1;
}
/* appends a new line to history (history is a fixed size array) */
static void console_input_append_hist( struct console_input* console, const WCHAR* buf, data_size_t len )
{
struct history_line *ptr;
if (!console || !console->history_size)
{
set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
return;
}
len = (len / sizeof(WCHAR)) * sizeof(WCHAR);
if (console->history_mode && console->history_index &&
console->history[console->history_index - 1]->len == len &&
!memcmp( console->history[console->history_index - 1]->text, buf, len ))
{
/* don't duplicate entry */
set_error( STATUS_ALIAS_EXISTS );
return;
}
if (!(ptr = mem_alloc( offsetof( struct history_line, text[len / sizeof(WCHAR)] )))) return;
ptr->len = len;
memcpy( ptr->text, buf, len );
if (console->history_index < console->history_size)
{
console->history[console->history_index++] = ptr;
}
else
{
free( console->history[0]) ;
memmove( &console->history[0], &console->history[1],
(console->history_size - 1) * sizeof(*console->history) );
console->history[console->history_size - 1] = ptr;
}
}
/* returns a line from the cache */
static data_size_t console_input_get_hist( struct console_input *console, int index )
{
data_size_t ret = 0;
if (index >= console->history_index) set_error( STATUS_INVALID_PARAMETER );
else
{
ret = console->history[index]->len;
set_reply_data( console->history[index]->text, min( ret, get_reply_max_size() ));
}
return ret;
}
/* dumb dump */
static void console_input_dump( struct object *obj, int verbose )
{
struct console_input *console = (struct console_input *)obj;
assert( obj->ops == &console_input_ops );
fprintf( stderr, "Console input active=%p evt=%p\n",
console->active, console->evt );
}
static void console_input_destroy( struct object *obj )
{
struct console_input* console_in = (struct console_input *)obj;
struct screen_buffer* curr;
int i;
assert( obj->ops == &console_input_ops );
if (console_in->server)
{
assert( console_in->server->console == console_in );
disconnect_console_server( console_in->server );
}
free( console_in->title );
free( console_in->records );
if (console_in->active) release_object( console_in->active );
console_in->active = NULL;
LIST_FOR_EACH_ENTRY( curr, &screen_buffer_list, struct screen_buffer, entry )
{
if (curr->input == console_in) curr->input = NULL;
}
free_async_queue( &console_in->ioctl_q );
free_async_queue( &console_in->read_q );
if (console_in->evt)
console_in->evt->console = NULL;
if (console_in->event)
release_object( console_in->event );
if (console_in->fd)
release_object( console_in->fd );
for (i = 0; i < console_in->history_size; i++)
free( console_in->history[i] );
free( console_in->history );
}
static struct object *console_input_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options )
{
return grab_object( obj );
}
static void screen_buffer_dump( struct object *obj, int verbose )
{
struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
assert( obj->ops == &screen_buffer_ops );
fprintf(stderr, "Console screen buffer input=%p\n", screen_buffer->input );
}
static void screen_buffer_destroy( struct object *obj )
{
struct screen_buffer *screen_buffer = (struct screen_buffer *)obj;
assert( obj->ops == &screen_buffer_ops );
list_remove( &screen_buffer->entry );
if (screen_buffer->input && screen_buffer->input->server)
queue_host_ioctl( screen_buffer->input->server, IOCTL_CONDRV_CLOSE_OUTPUT,
screen_buffer->id, NULL, NULL );
if (screen_buffer->fd) release_object( screen_buffer->fd );
free_async_queue( &screen_buffer->ioctl_q );
free( screen_buffer->data );
free( screen_buffer->font.face_name );
}
static struct object *screen_buffer_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options )
{
return grab_object( obj );
}
static struct fd *screen_buffer_get_fd( struct object *obj )
{
struct screen_buffer *screen_buffer = (struct screen_buffer*)obj;
assert( obj->ops == &screen_buffer_ops );
if (screen_buffer->fd)
return (struct fd*)grab_object( screen_buffer->fd );
set_error( STATUS_OBJECT_TYPE_MISMATCH );
return NULL;
}
/* read data from a screen buffer */
static void read_console_output( struct screen_buffer *screen_buffer, unsigned int x, unsigned int y,
enum char_info_mode mode, unsigned int width )
{
unsigned int i, count;
char_info_t *src;
if (x >= screen_buffer->width || y >= screen_buffer->height)
{
if (width) set_error( STATUS_INVALID_PARAMETER );
return;
}
src = screen_buffer->data + y * screen_buffer->width + x;
switch(mode)
{
case CHAR_INFO_MODE_TEXT:
{
WCHAR *data;
count = min( screen_buffer->data + screen_buffer->height * screen_buffer->width - src,
get_reply_max_size() / sizeof(*data) );
if ((data = set_reply_data_size( count * sizeof(*data) )))
{
for (i = 0; i < count; i++) data[i] = src[i].ch;
}
}
break;
case CHAR_INFO_MODE_ATTR:
{
unsigned short *data;
count = min( screen_buffer->data + screen_buffer->height * screen_buffer->width - src,
get_reply_max_size() / sizeof(*data) );
if ((data = set_reply_data_size( count * sizeof(*data) )))
{
for (i = 0; i < count; i++) data[i] = src[i].attr;
}
}
break;
case CHAR_INFO_MODE_TEXTATTR:
{
char_info_t *data;
SMALL_RECT *region;
if (!width || get_reply_max_size() < sizeof(*region))
{
set_error( STATUS_INVALID_PARAMETER );
return;
}
count = min( (get_reply_max_size() - sizeof(*region)) / (width * sizeof(*data)), screen_buffer->height - y );
width = min( width, screen_buffer->width - x );
if (!(region = set_reply_data_size( sizeof(*region) + width * count * sizeof(*data) ))) return;
region->Left = x;
region->Top = y;
region->Right = x + width - 1;
region->Bottom = y + count - 1;
data = (char_info_t *)(region + 1);
for (i = 0; i < count; i++)
{
memcpy( &data[i * width], &src[i * screen_buffer->width], width * sizeof(*data) );
}
}
break;
default:
set_error( STATUS_INVALID_PARAMETER );
break;
}
}
/* write data into a screen buffer */
static void write_console_output( struct screen_buffer *screen_buffer, const struct condrv_output_params *params,
data_size_t size )
{
unsigned int i, entry_size, entry_cnt, x, y;
char_info_t *dest;
char *src;
entry_size = params->mode == CHAR_INFO_MODE_TEXTATTR ? sizeof(char_info_t) : sizeof(WCHAR);
if (size % entry_size)
{
set_error( STATUS_INVALID_PARAMETER );
return;
}
if (params->x >= screen_buffer->width) return;
entry_cnt = size / entry_size;
for (i = 0, src = (char *)(params + 1); i < entry_cnt; i++, src += entry_size)
{
if (params->width)
{
x = params->x + i % params->width;
y = params->y + i / params->width;
if (x >= screen_buffer->width) continue;
}
else
{
x = (params->x + i) % screen_buffer->width;
y = params->y + (params->x + i) / screen_buffer->width;
}
if (y >= screen_buffer->height) break;
dest = &screen_buffer->data[y * screen_buffer->width + x];
switch(params->mode)
{
case CHAR_INFO_MODE_TEXT:
dest->ch = *(const WCHAR *)src;
break;
case CHAR_INFO_MODE_ATTR:
dest->attr = *(const unsigned short *)src;
break;
case CHAR_INFO_MODE_TEXTATTR:
*dest = *(const char_info_t *)src;
break;
case CHAR_INFO_MODE_TEXTSTDATTR:
dest->ch = *(const WCHAR *)src;
dest->attr = screen_buffer->attr;
break;
default:
set_error( STATUS_INVALID_PARAMETER );
return;
}
}
if (i && screen_buffer == screen_buffer->input->active)
{
struct condrv_renderer_event evt;
evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
memset(&evt.u, 0, sizeof(evt.u));
evt.u.update.top = params->y;
evt.u.update.bottom = params->width
? min( params->y + entry_cnt / params->width, screen_buffer->height ) - 1
: params->y + (params->x + i - 1) / screen_buffer->width;
console_input_events_append( screen_buffer->input, &evt );
}
if (get_reply_max_size() == sizeof(SMALL_RECT))
{
SMALL_RECT region;
region.Left = params->x;
region.Top = params->y;
region.Right = min( params->x + params->width, screen_buffer->width ) - 1;
region.Bottom = min( params->y + entry_cnt / params->width, screen_buffer->height ) - 1;
set_reply_data( &region, sizeof(region) );
}
else set_reply_data( &i, sizeof(i) );
}
/* fill a screen buffer with uniform data */
static int fill_console_output( struct screen_buffer *screen_buffer, char_info_t data,
enum char_info_mode mode, int x, int y, int count, int wrap )
{
int i;
char_info_t *end, *dest = screen_buffer->data + y * screen_buffer->width + x;
if (y >= screen_buffer->height) return 0;
if (wrap)
end = screen_buffer->data + screen_buffer->height * screen_buffer->width;
else
end = screen_buffer->data + (y+1) * screen_buffer->width;
if (count > end - dest) count = end - dest;
switch(mode)
{
case CHAR_INFO_MODE_TEXT:
for (i = 0; i < count; i++) dest[i].ch = data.ch;
break;
case CHAR_INFO_MODE_ATTR:
for (i = 0; i < count; i++) dest[i].attr = data.attr;
break;
case CHAR_INFO_MODE_TEXTATTR:
for (i = 0; i < count; i++) dest[i] = data;
break;
case CHAR_INFO_MODE_TEXTSTDATTR:
for (i = 0; i < count; i++)
{
dest[i].ch = data.ch;
dest[i].attr = screen_buffer->attr;
}
break;
default:
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (count && screen_buffer == screen_buffer->input->active)
{
struct condrv_renderer_event evt;
evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
memset(&evt.u, 0, sizeof(evt.u));
evt.u.update.top = y;
evt.u.update.bottom = (y * screen_buffer->width + x + count - 1) / screen_buffer->width;
console_input_events_append( screen_buffer->input, &evt );
}
return i;
}
/* scroll parts of a screen buffer */
static void scroll_console_output( struct screen_buffer *screen_buffer, int xsrc, int ysrc, int xdst, int ydst,
int w, int h, const rectangle_t *clip, char_info_t fill )
{
struct condrv_renderer_event evt;
rectangle_t src, dst;
int x, y;
src.left = max( xsrc, clip->left );
src.top = max( ysrc, clip->top );
src.right = min( xsrc + w - 1, clip->right );
src.bottom = min( ysrc + h - 1, clip->bottom );
dst.left = xdst;
dst.top = ydst;
dst.right = xdst + w - 1;
dst.bottom = ydst + h - 1;
if (dst.left < clip->left)
{
xsrc += clip->left - dst.left;
w -= clip->left - dst.left;
dst.left = clip->left;
}
if (dst.top < clip->top)
{
ysrc += clip->top - dst.top;
h -= clip->top - dst.top;
dst.top = clip->top;
}
if (dst.right > clip->right) w -= dst.right - clip->right;
if (dst.bottom > clip->bottom) h -= dst.bottom - clip->bottom;
if (w > 0 && h > 0)
{
if (ysrc < ydst)
{
for (y = h; y > 0; y--)
{
memcpy( &screen_buffer->data[(dst.top + y - 1) * screen_buffer->width + dst.left],
&screen_buffer->data[(ysrc + y - 1) * screen_buffer->width + xsrc],
w * sizeof(screen_buffer->data[0]) );
}
}
else
{
for (y = 0; y < h; y++)
{
/* we use memmove here because when psrc and pdst are the same,
* copies are done on the same row, so the dst and src blocks
* can overlap */
memmove( &screen_buffer->data[(dst.top + y) * screen_buffer->width + dst.left],
&screen_buffer->data[(ysrc + y) * screen_buffer->width + xsrc],
w * sizeof(screen_buffer->data[0]) );
}
}
}
for (y = src.top; y <= src.bottom; y++)
{
int left = src.left;
int right = src.right;
if (dst.top <= y && y <= dst.bottom)
{
if (dst.left <= src.left) left = max( left, dst.right + 1 );
if (dst.left >= src.left) right = min( right, dst.left - 1 );
}
for (x = left; x <= right; x++) screen_buffer->data[y * screen_buffer->width + x] = fill;
}
/* FIXME: this could be enhanced, by signalling scroll */
evt.event = CONSOLE_RENDERER_UPDATE_EVENT;
memset(&evt.u, 0, sizeof(evt.u));
evt.u.update.top = min( src.top, dst.top );
evt.u.update.bottom = max( src.bottom, dst.bottom );
console_input_events_append( screen_buffer->input, &evt );
}
static void console_server_dump( struct object *obj, int verbose )
{
assert( obj->ops == &console_server_ops );
fprintf( stderr, "Console server\n" );
}
static void console_server_destroy( struct object *obj )
{
struct console_server *server = (struct console_server *)obj;
assert( obj->ops == &console_server_ops );
disconnect_console_server( server );
if (server->fd) release_object( server->fd );
}
static struct object *console_server_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attr )
{
struct console_server *server = (struct console_server*)obj;
static const WCHAR referenceW[] = {'R','e','f','e','r','e','n','c','e'};
assert( obj->ops == &console_server_ops );
if (name->len == sizeof(referenceW) && !memcmp( name->str, referenceW, name->len ))
{
struct screen_buffer *screen_buffer;
name->len = 0;
if (server->console)
{
set_error( STATUS_INVALID_HANDLE );
return 0;
}
if (!(server->console = (struct console_input *)create_console_input( -1 ))) return NULL;
if (!(screen_buffer = (struct screen_buffer *)create_console_output( server->console, -1 )))
{
release_object( server->console );
server->console = NULL;
return NULL;
}
release_object( screen_buffer );
server->console->server = server;
return &server->console->obj;
}
return NULL;
}
static int console_server_signaled( struct object *obj, struct wait_queue_entry *entry )
{
struct console_server *server = (struct console_server*)obj;
assert( obj->ops == &console_server_ops );
return !server->console || !list_empty( &server->queue );
}
static struct fd *console_server_get_fd( struct object* obj )
{
struct console_server *server = (struct console_server*)obj;
assert( obj->ops == &console_server_ops );
return (struct fd *)grab_object( server->fd );
}
static struct object *console_server_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options )
{
return grab_object( obj );
}
static struct object *create_console_server( void )
{
struct console_server *server;
if (!(server = alloc_object( &console_server_ops ))) return NULL;
server->console = NULL;
server->busy = 0;
list_init( &server->queue );
list_init( &server->read_queue );
server->fd = alloc_pseudo_fd( &console_server_fd_ops, &server->obj, FILE_SYNCHRONOUS_IO_NONALERT );
if (!server->fd)
{
release_object( server );
return NULL;
}
allow_fd_caching(server->fd);
return &server->obj;
}
static int is_blocking_read_ioctl( unsigned int code )
{
return code == IOCTL_CONDRV_READ_INPUT || code == IOCTL_CONDRV_READ_CONSOLE;
}
static int console_input_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
{
struct console_input *console = get_fd_user( fd );
switch (code)
{
case IOCTL_CONDRV_GET_MODE:
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
if (get_reply_max_size() != sizeof(console->mode))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
return set_reply_data( &console->mode, sizeof(console->mode) ) != NULL;
case IOCTL_CONDRV_SET_MODE:
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
if (get_req_data_size() != sizeof(console->mode))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
console->mode = *(unsigned int *)get_req_data();
return 1;
case IOCTL_CONDRV_READ_INPUT:
{
int blocking = 0;
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
if (get_reply_max_size() % sizeof(INPUT_RECORD))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (get_req_data_size())
{
if (get_req_data_size() != sizeof(int))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
blocking = *(int *)get_req_data();
}
set_error( STATUS_PENDING );
if (blocking && !console->recnum)
{
queue_async( &console->read_q, async );
return 1;
}
return read_console_input( console, async, 1 );
}
case IOCTL_CONDRV_WRITE_INPUT:
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
return write_console_input( console, get_req_data_size() / sizeof(INPUT_RECORD), get_req_data() );
case IOCTL_CONDRV_PEEK:
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
if (get_reply_max_size() % sizeof(INPUT_RECORD))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
set_error( STATUS_PENDING );
return read_console_input( console, async, 0 );
case IOCTL_CONDRV_GET_INPUT_INFO:
{
struct condrv_input_info info;
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
if (get_reply_max_size() != sizeof(info))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
info.input_cp = console->input_cp;
info.output_cp = console->output_cp;
info.history_mode = console->history_mode;
info.history_size = console->history_size;
info.history_index = console->history_index;
info.edition_mode = console->edition_mode;
info.input_count = console->recnum;
info.win = console->win;
return set_reply_data( &info, sizeof(info) ) != NULL;
}
case IOCTL_CONDRV_SET_INPUT_INFO:
{
const struct condrv_input_info_params *params = get_req_data();
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
if (get_req_data_size() != sizeof(*params))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (params->mask & SET_CONSOLE_INPUT_INFO_HISTORY_MODE)
{
console->history_mode = params->info.history_mode;
}
if ((params->mask & SET_CONSOLE_INPUT_INFO_HISTORY_SIZE) &&
console->history_size != params->info.history_size)
{
struct history_line **mem = NULL;
int i, delta;
if (params->info.history_size)
{
if (!(mem = mem_alloc( params->info.history_size * sizeof(*mem) ))) return 0;
memset( mem, 0, params->info.history_size * sizeof(*mem) );
}
delta = (console->history_index > params->info.history_size) ?
(console->history_index - params->info.history_size) : 0;
for (i = delta; i < console->history_index; i++)
{
mem[i - delta] = console->history[i];
console->history[i] = NULL;
}
console->history_index -= delta;
for (i = 0; i < console->history_size; i++)
free( console->history[i] );
free( console->history );
console->history = mem;
console->history_size = params->info.history_size;
}
if (params->mask & SET_CONSOLE_INPUT_INFO_EDITION_MODE)
{
console->edition_mode = params->info.edition_mode;
}
if (params->mask & SET_CONSOLE_INPUT_INFO_INPUT_CODEPAGE)
{
console->input_cp = params->info.input_cp;
}
if (params->mask & SET_CONSOLE_INPUT_INFO_OUTPUT_CODEPAGE)
{
console->output_cp = params->info.output_cp;
}
if (params->mask & SET_CONSOLE_INPUT_INFO_WIN)
{
console->win = params->info.win;
}
return 1;
}
case IOCTL_CONDRV_GET_TITLE:
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
if (!console->title_len) return 1;
return set_reply_data( console->title, min( console->title_len, get_reply_max_size() )) != NULL;
case IOCTL_CONDRV_SET_TITLE:
{
data_size_t len = get_req_data_size();
struct condrv_renderer_event evt;
WCHAR *title = NULL;
if (console->server)
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
if (len % sizeof(WCHAR))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (len && !(title = memdup( get_req_data(), len ))) return 0;
free( console->title );
console->title = title;
console->title_len = len;
evt.event = CONSOLE_RENDERER_TITLE_EVENT;
console_input_events_append( console, &evt );
return 1;
}
case IOCTL_CONDRV_CTRL_EVENT:
{
const struct condrv_ctrl_event *event = get_req_data();
process_id_t group;
if (get_req_data_size() != sizeof(*event))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
group = event->group_id ? event->group_id : current->process->group_id;
if (!group)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
propagate_console_signal( console, event->event, group );
return !get_error();
}
default:
if (!console->server || code >> 16 != FILE_DEVICE_CONSOLE)
{
set_error( STATUS_INVALID_HANDLE );
return 0;
}
return queue_host_ioctl( console->server, code, 0, async, &console->ioctl_q );
}
}
static int screen_buffer_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
{
struct screen_buffer *screen_buffer = get_fd_user( fd );
switch (code)
{
case IOCTL_CONDRV_GET_MODE:
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
if (get_reply_max_size() != sizeof(screen_buffer->mode))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
return set_reply_data( &screen_buffer->mode, sizeof(screen_buffer->mode) ) != NULL;
case IOCTL_CONDRV_SET_MODE:
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
if (get_req_data_size() != sizeof(screen_buffer->mode))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
screen_buffer->mode = *(unsigned int *)get_req_data();
return 1;
case IOCTL_CONDRV_READ_OUTPUT:
{
const struct condrv_output_params *params = get_req_data();
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
if (get_req_data_size() != sizeof(*params))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (console_input_is_bare( screen_buffer->input ))
{
set_error( STATUS_OBJECT_TYPE_MISMATCH );
return 0;
}
read_console_output( screen_buffer, params->x, params->y, params->mode, params->width );
return !get_error();
}
case IOCTL_CONDRV_WRITE_OUTPUT:
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
if (get_req_data_size() < sizeof(struct condrv_output_params) ||
(get_reply_max_size() != sizeof(SMALL_RECT) && get_reply_max_size() != sizeof(unsigned int)))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (console_input_is_bare( screen_buffer->input ))
{
set_error( STATUS_OBJECT_TYPE_MISMATCH );
return 0;
}
write_console_output( screen_buffer, get_req_data(), get_req_data_size() - sizeof(struct condrv_output_params) );
return !get_error();
case IOCTL_CONDRV_GET_OUTPUT_INFO:
{
struct condrv_output_info *info;
data_size_t size;
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
size = min( sizeof(*info) + screen_buffer->font.face_len, get_reply_max_size() );
if (size < sizeof(*info))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (!(info = set_reply_data_size( size ))) return 0;
info->cursor_size = screen_buffer->cursor_size;
info->cursor_visible = screen_buffer->cursor_visible;
info->cursor_x = screen_buffer->cursor_x;
info->cursor_y = screen_buffer->cursor_y;
info->width = screen_buffer->width;
info->height = screen_buffer->height;
info->attr = screen_buffer->attr;
info->popup_attr = screen_buffer->popup_attr;
info->win_left = screen_buffer->win.left;
info->win_top = screen_buffer->win.top;
info->win_right = screen_buffer->win.right;
info->win_bottom = screen_buffer->win.bottom;
info->max_width = screen_buffer->max_width;
info->max_height = screen_buffer->max_height;
info->font_width = screen_buffer->font.width;
info->font_height = screen_buffer->font.height;
info->font_weight = screen_buffer->font.weight;
info->font_pitch_family = screen_buffer->font.pitch_family;
memcpy( info->color_map, screen_buffer->color_map, sizeof(info->color_map) );
size -= sizeof(*info);
if (size) memcpy( info + 1, screen_buffer->font.face_name, size );
return 1;
}
case IOCTL_CONDRV_SET_OUTPUT_INFO:
{
const struct condrv_output_info_params *params = get_req_data();
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
if (get_req_data_size() < sizeof(*params))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (!screen_buffer->input)
{
set_error( STATUS_INVALID_HANDLE );
return 0;
}
return set_output_info( screen_buffer, params, get_req_data_size() - sizeof(*params) );
}
case IOCTL_CONDRV_ACTIVATE:
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
if (!screen_buffer->input)
{
set_error( STATUS_INVALID_HANDLE );
return 0;
}
set_active_screen_buffer( screen_buffer->input, screen_buffer );
return 1;
case IOCTL_CONDRV_FILL_OUTPUT:
{
const struct condrv_fill_output_params *params = get_req_data();
char_info_t data;
DWORD written;
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
if (get_req_data_size() != sizeof(*params) ||
(get_reply_max_size() && get_reply_max_size() != sizeof(written)))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
data.ch = params->ch;
data.attr = params->attr;
written = fill_console_output( screen_buffer, data, params->mode,
params->x, params->y, params->count, params->wrap );
if (written && get_reply_max_size() == sizeof(written))
set_reply_data( &written, sizeof(written) );
return !get_error();
}
case IOCTL_CONDRV_SCROLL:
{
const struct condrv_scroll_params *params = get_req_data();
rectangle_t clip;
if (screen_buffer->input && screen_buffer->input->server)
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
if (get_req_data_size() != sizeof(*params))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (console_input_is_bare( screen_buffer->input ) || !screen_buffer->input)
{
set_error( STATUS_OBJECT_TYPE_MISMATCH );
return 0;
}
clip.left = max( params->clip.Left, 0 );
clip.top = max( params->clip.Top, 0 );
clip.right = min( params->clip.Right, screen_buffer->width - 1 );
clip.bottom = min( params->clip.Bottom, screen_buffer->height - 1 );
if (clip.left > clip.right || clip.top > clip.bottom || params->scroll.Left < 0 || params->scroll.Top < 0 ||
params->scroll.Right >= screen_buffer->width || params->scroll.Bottom >= screen_buffer->height ||
params->scroll.Right < params->scroll.Left || params->scroll.Top > params->scroll.Bottom ||
params->origin.X < 0 || params->origin.X >= screen_buffer->width || params->origin.Y < 0 ||
params->origin.Y >= screen_buffer->height)
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
scroll_console_output( screen_buffer, params->scroll.Left, params->scroll.Top, params->origin.X, params->origin.Y,
params->scroll.Right - params->scroll.Left + 1, params->scroll.Bottom - params->scroll.Top + 1,
&clip, params->fill );
return !get_error();
}
default:
if (!screen_buffer->input || !screen_buffer->input->server || code >> 16 != FILE_DEVICE_CONSOLE)
{
set_error( STATUS_INVALID_HANDLE );
return 0;
}
return queue_host_ioctl( screen_buffer->input->server, code, screen_buffer->id,
async, &screen_buffer->ioctl_q );
}
}
static int console_input_events_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
{
struct console_input_events *evts = get_fd_user( fd );
switch (code)
{
case IOCTL_CONDRV_GET_RENDERER_EVENTS:
set_error( STATUS_PENDING );
if (evts->num_used) return get_renderer_events( evts, async );
queue_async( &evts->read_q, async );
return 1;
case IOCTL_CONDRV_ATTACH_RENDERER:
{
struct console_input *console_input;
if (get_req_data_size() != sizeof(condrv_handle_t))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
console_input = (struct console_input *)get_handle_obj( current->process, *(condrv_handle_t *)get_req_data(),
0, &console_input_ops );
if (!console_input) return 0;
if (!console_input->evt && !evts->console)
{
console_input->evt = evts;
console_input->renderer = current;
evts->console = console_input;
}
else set_error( STATUS_INVALID_HANDLE );
release_object( console_input );
return !get_error();
}
case IOCTL_CONDRV_SCROLL:
case IOCTL_CONDRV_SET_MODE:
case IOCTL_CONDRV_WRITE_OUTPUT:
case IOCTL_CONDRV_READ_OUTPUT:
case IOCTL_CONDRV_FILL_OUTPUT:
case IOCTL_CONDRV_GET_OUTPUT_INFO:
case IOCTL_CONDRV_SET_OUTPUT_INFO:
if (!evts->console || !evts->console->active)
{
set_error( STATUS_INVALID_HANDLE );
return 0;
}
return screen_buffer_ioctl( evts->console->active->fd, code, async );
default:
if (!evts->console)
{
set_error( STATUS_INVALID_HANDLE );
return 0;
}
return console_input_ioctl( evts->console->fd, code, async );
}
}
static int console_server_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
{
struct console_server *server = get_fd_user( fd );
switch (code)
{
case IOCTL_CONDRV_CTRL_EVENT:
{
const struct condrv_ctrl_event *event = get_req_data();
if (get_req_data_size() != sizeof(*event))
{
set_error( STATUS_INVALID_PARAMETER );
return 0;
}
if (!server->console)
{
set_error( STATUS_INVALID_HANDLE );
return 0;
}
propagate_console_signal( server->console, event->event, event->group_id );
return !get_error();
}
default:
set_error( STATUS_INVALID_HANDLE );
return 0;
}
}
static struct object_type *console_device_get_type( struct object *obj )
{
static const WCHAR name[] = {'D','e','v','i','c','e'};
static const struct unicode_str str = { name, sizeof(name) };
return get_object_type( &str );
}
static void console_device_dump( struct object *obj, int verbose )
{
fputs( "Console device\n", stderr );
}
static struct object *console_device_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attr )
{
static const WCHAR consoleW[] = {'C','o','n','s','o','l','e'};
static const WCHAR current_inW[] = {'C','u','r','r','e','n','t','I','n'};
static const WCHAR current_outW[] = {'C','u','r','r','e','n','t','O','u','t'};
static const WCHAR rendererW[] = {'R','e','n','d','e','r','e','r'};
static const WCHAR screen_bufferW[] = {'S','c','r','e','e','n','B','u','f','f','e','r'};
static const WCHAR serverW[] = {'S','e','r','v','e','r'};
if (name->len == sizeof(current_inW) && !memcmp( name->str, current_inW, name->len ))
{
if (!current->process->console)
{
set_error( STATUS_INVALID_HANDLE );
return NULL;
}
name->len = 0;
return grab_object( current->process->console );
}
if (name->len == sizeof(current_outW) && !memcmp( name->str, current_outW, name->len ))
{
if (!current->process->console || !current->process->console->active)
{
set_error( STATUS_INVALID_HANDLE );
return NULL;
}
name->len = 0;
return grab_object( current->process->console->active );
}
if (name->len == sizeof(consoleW) && !memcmp( name->str, consoleW, name->len ))
{
name->len = 0;
return grab_object( obj );
}
if (name->len == sizeof(rendererW) && !memcmp( name->str, rendererW, name->len ))
{
name->len = 0;
return create_console_input_events();
}
if (name->len == sizeof(screen_bufferW) && !memcmp( name->str, screen_bufferW, name->len ))
{
if (!current->process->console)
{
set_error( STATUS_INVALID_HANDLE );
return NULL;
}
name->len = 0;
return create_console_output( current->process->console, -1 );
}
if (name->len == sizeof(serverW) && !memcmp( name->str, serverW, name->len ))
{
name->len = 0;
return create_console_server();
}
return NULL;
}
static struct object *console_device_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options )
{
int is_output;
access = default_fd_map_access( obj, access );
is_output = access & FILE_WRITE_DATA;
if (!current->process->console || (is_output && !current->process->console))
{
set_error( STATUS_INVALID_HANDLE );
return NULL;
}
if (is_output && (access & FILE_READ_DATA))
{
set_error( STATUS_INVALID_PARAMETER );
return NULL;
}
return is_output ? grab_object( current->process->console->active ) : grab_object( current->process->console );
}
struct object *create_console_device( struct object *root, const struct unicode_str *name )
{
return create_named_object( root, &console_device_ops, name, 0, NULL );
}
/* allocate a console for the renderer */
DECL_HANDLER(alloc_console)
{
struct process *process;
struct console_input *console;
int fd;
int attach = 0;
if (req->input_fd != -1)
{
if ((fd = thread_get_inflight_fd( current, req->input_fd )) == -1)
{
set_error( STATUS_INVALID_PARAMETER );
return;
}
}
else fd = -1;
switch (req->pid)
{
case 0:
/* console to be attached to parent process */
if (!(process = get_process_from_id( current->process->parent_id )))
{
if (fd != -1) close( fd );
set_error( STATUS_ACCESS_DENIED );
return;
}
attach = 1;
break;
case 0xffffffff:
/* console to be attached to current process */
process = current->process;
grab_object( process );
attach = 1;
break;
default:
/* console to be attached to req->pid */
if (!(process = get_process_from_id( req->pid )))
{
if (fd != -1) close( fd );
return;
}
}
if (attach && process->console)
{
if (fd != -1) close( fd );
set_error( STATUS_ACCESS_DENIED );
}
else if ((console = (struct console_input*)create_console_input( fd )))
{
if ((reply->handle_in = alloc_handle( current->process, console, req->access,
req->attributes )) && attach)
{
process->console = (struct console_input*)grab_object( console );
console->num_proc++;
}
release_object( console );
}
release_object( process );
}
/* free the console of the current process */
DECL_HANDLER(free_console)
{
free_console( current->process );
}
/* attach to a other process's console */
DECL_HANDLER(attach_console)
{
struct process *process;
if (current->process->console)
{
set_error( STATUS_ACCESS_DENIED );
return;
}
process = get_process_from_id( req->pid == ATTACH_PARENT_PROCESS
? current->process->parent_id : req->pid );
if (!process) return;
if (process->console && process->console->active)
{
current->process->console = (struct console_input *)grab_object( process->console );
current->process->console->num_proc++;
}
else
{
set_error( STATUS_INVALID_HANDLE );
}
release_object( process );
return;
}
/* appends a string to console's history */
DECL_HANDLER(append_console_input_history)
{
struct console_input *console;
if (!(console = console_input_get( req->handle, FILE_WRITE_PROPERTIES ))) return;
console_input_append_hist( console, get_req_data(), get_req_data_size() );
release_object( console );
}
/* appends a string to console's history */
DECL_HANDLER(get_console_input_history)
{
struct console_input *console;
if (!(console = console_input_get( req->handle, FILE_READ_PROPERTIES ))) return;
reply->total = console_input_get_hist( console, req->index );
release_object( console );
}
/* creates a screen buffer */
DECL_HANDLER(create_console_output)
{
struct console_input *console;
struct object *screen_buffer;
int fd;
if (req->fd != -1)
{
if ((fd = thread_get_inflight_fd( current, req->fd )) == -1)
{
set_error( STATUS_INVALID_HANDLE );
return;
}
}
else fd = -1;
if (!(console = console_input_get( req->handle_in, FILE_WRITE_PROPERTIES )))
{
if (fd != -1) close( fd );
return;
}
if (console_input_is_bare( console ) ^ (fd != -1))
{
if (fd != -1) close( fd );
release_object( console );
set_error( STATUS_INVALID_HANDLE );
return;
}
screen_buffer = create_console_output( console, fd );
if (screen_buffer)
{
/* FIXME: should store sharing and test it when opening the CONOUT$ device
* see file.c on how this could be done */
reply->handle_out = alloc_handle( current->process, screen_buffer, req->access, req->attributes );
release_object( screen_buffer );
}
release_object( console );
}
/* get console which renderer is 'current' */
static int cgwe_enum( struct process* process, void* user)
{
if (process->console && process->console->renderer == current)
{
*(struct console_input**)user = (struct console_input *)grab_object( process->console );
return 1;
}
return 0;
}
DECL_HANDLER(get_console_wait_event)
{
struct console_input* console = NULL;
struct object *obj;
if (req->handle)
{
if (!(obj = get_handle_obj( current->process, req->handle, FILE_READ_PROPERTIES, NULL ))) return;
if (obj->ops == &console_input_ops)
console = (struct console_input *)grab_object( obj );
else if (obj->ops == &screen_buffer_ops)
console = (struct console_input *)grab_object( ((struct screen_buffer *)obj)->input );
else
set_error( STATUS_OBJECT_TYPE_MISMATCH );
release_object( obj );
}
else if (current->process->console)
console = (struct console_input *)grab_object( current->process->console );
else enum_processes(cgwe_enum, &console);
if (console)
{
reply->event = alloc_handle( current->process, console->event, EVENT_ALL_ACCESS, 0 );
release_object( console );
}
else set_error( STATUS_INVALID_PARAMETER );
}
/* retrieve the next pending console ioctl request */
DECL_HANDLER(get_next_console_request)
{
struct console_host_ioctl *ioctl = NULL, *next;
struct console_server *server;
struct iosb *iosb = NULL;
server = (struct console_server *)get_handle_obj( current->process, req->handle, 0, &console_server_ops );
if (!server) return;
if (!server->console)
{
set_error( STATUS_INVALID_HANDLE );
release_object( server );
return;
}
if (req->signal) set_event( server->console->event);
else reset_event( server->console->event );
if (req->read)
{
/* set result of current pending ioctl */
if (list_empty( &server->read_queue ))
{
set_error( STATUS_INVALID_HANDLE );
release_object( server );
return;
}
ioctl = LIST_ENTRY( list_head( &server->read_queue ), struct console_host_ioctl, entry );
list_remove( &ioctl->entry );
list_move_tail( &server->queue, &server->read_queue );
}
else if (server->busy)
{
/* set result of previous ioctl */
ioctl = LIST_ENTRY( list_head( &server->queue ), struct console_host_ioctl, entry );
list_remove( &ioctl->entry );
}
if (ioctl)
{
unsigned int status = req->status;
if (ioctl->async)
{
iosb = async_get_iosb( ioctl->async );
iosb->status = req->status;
iosb->out_size = min( iosb->out_size, get_req_data_size() );
if (iosb->out_size)
{
if ((iosb->out_data = memdup( get_req_data(), iosb->out_size )))
{
iosb->result = iosb->out_size;
status = STATUS_ALERTED;
}
else if (!status)
{
iosb->status = STATUS_NO_MEMORY;
iosb->out_size = 0;
}
}
}
console_host_ioctl_terminate( ioctl, status );
if (iosb) release_object( iosb );
if (req->read)
{
release_object( server );
return;
}
server->busy = 0;
}
/* if we have a blocking read ioctl in queue head and previous blocking read is still waiting,
* move it to read queue for execution after current read is complete. move all blocking
* ioctl at the same time to preserve their order. */
if (!list_empty( &server->queue ) && !list_empty( &server->read_queue ))
{
ioctl = LIST_ENTRY( list_head( &server->queue ), struct console_host_ioctl, entry );
if (is_blocking_read_ioctl( ioctl->code ))
{
LIST_FOR_EACH_ENTRY_SAFE( ioctl, next, &server->queue, struct console_host_ioctl, entry )
{
if (!is_blocking_read_ioctl( ioctl->code )) continue;
list_remove( &ioctl->entry );
list_add_tail( &server->read_queue, &ioctl->entry );
}
}
}
/* return the next ioctl */
if (!list_empty( &server->queue ))
{
ioctl = LIST_ENTRY( list_head( &server->queue ), struct console_host_ioctl, entry );
iosb = ioctl->async ? async_get_iosb( ioctl->async ) : NULL;
if (!iosb || get_reply_max_size() >= iosb->in_size)
{
reply->code = ioctl->code;
reply->output = ioctl->output;
if (iosb)
{
reply->out_size = iosb->out_size;
set_reply_data_ptr( iosb->in_data, iosb->in_size );
iosb->in_data = NULL;
}
if (is_blocking_read_ioctl( ioctl->code ))
{
list_remove( &ioctl->entry );
assert( list_empty( &server->read_queue ));
list_add_tail( &server->read_queue, &ioctl->entry );
}
else server->busy = 1;
}
else
{
reply->out_size = iosb->in_size;
set_error( STATUS_BUFFER_OVERFLOW );
}
if (iosb) release_object( iosb );
}
else
{
set_error( STATUS_PENDING );
}
release_object( server );
}
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